Answer:
Sometimes when an animal dies and its body decays, it can leave an imprint in the sediment. If this imprint fills in with minerals from sediment and groundwater, it can harden to form a fossil. This fossil is called a cast fossil. The fossilized imprint is called a mold fossil.
Answer:
Read
Explanation:
What is a mold cast?:A cast or a mold fossil is an impression of a living organism.
How is it formed?: We find molds where an animal or plant was buried in mud or soft soil and decayed away, leaving behind an impression of their bodies, leaves, or flowers. Casts are formed when these impressions are filled with other types of sediment that form rocks, which take the place of the animal or plant.
Which statement is true of electrolytes?
O They cause a solution to be very acidic.
O They are highly reactive.
O They conduct electricity.
O They are combustible.
20pts
Answer:
They conduct electricity.
Explanation:
Electrolytes are substances that conduct electricity when dissolved in water or melted. They are typically ionic compounds that dissociate into positive and negative ions in solution. These ions are free to move and carry an electrical charge, allowing them to conduct electricity.
A tsunami brings a bunch of new sand onto a beach in a coastal region and new
sand dunes develop. This region will undergo
succession
to become a climax community
Answer:
The statement is incorrect.
Succession is a gradual and predictable change in the species composition of an ecosystem over time, starting from bare rock or sand and ending in a stable, self-sustaining community called a climax community.
In the scenario described, the deposition of new sand and the formation of new dunes can provide new habitats for pioneer species, which are the first to colonize disturbed areas. These species are usually opportunistic and fast-growing, such as grasses and shrubs. Over time, as these species die and decompose, they contribute to the formation of soil, which allows for the establishment of other species, such as trees and woody plants.
However, since the scenario involves a coastal region, the newly formed sand dunes can be highly vulnerable to erosion and flooding, which can interrupt the successional process and prevent the establishment of a climax community. In addition, the deposition of new sand can also affect the chemical and physical properties of the soil, which can limit the growth of certain plant species and affect the food web of the ecosystem. Therefore, it is not certain that the region will undergo succession to become a climax community.
In terms of stability and change, what change occurs in the system during the process of metamorphic rock
formation? When is the system stable again?
Answer:
During the process of metamorphic rock formation, there is a transformation or change in the mineral composition and texture of the original rock due to high heat, pressure, or chemically active fluids. As a result, the system goes through a significant change.
The system may be considered "stable" again once the metamorphism process has completed and the resulting metamorphic rock has reached equilibrium - meaning that there are no longer any changes occurring within the rock due to external factors. The stability of a metamorphic rock depends on various factors such as the mineral composition, temperature, pressure, and chemical environment. Once these factors balance out and reach a steady state, the system can be considered stable again.
Answer: The change that occurs is the eroding, or breaking down of a rock into sediments, the movement and deposition of the sediments, and the compaction and cementation of the sediments to form a new rock. The system is stable again once the new rock is formed.
What feature of Earth's surface is discussed in this box?
Answer:
Please make me brainalist and keep smiling dude I hope you will be satisfied with my answer
Arable land is used to grow crops and feed livestock.
True
False
Answer:
True.
Explanation:
Arable land is defined as land that is suitable for farming, and is typically used for the production of crops and livestock feed. The term "arable" is often used to describe land that has been cultivated, plowed, and is ready for planting. This land is usually nutrient-rich and capable of supporting a variety of crops such as wheat, rice, corn, and soybeans, as well as forage crops for livestock such as alfalfa, clover, and grasses.
Farmers rely on arable land to produce food and feed for animals, and this land is a crucial resource for meeting the world's growing demand for agricultural products. Arable land is a finite resource, and it is important to use it efficiently and sustainably to ensure that future generations have access to the resources they need to produce food and feed for a growing global population.
Insects can show three types of development. One of them, holometaboly (complete development), consists of the stages of egg, larva, pupa and sexually mature adult, which occupy different habitats. Insects with holometaboly belong to the most numerous orders in terms of known species. This type of development is related to a greater number of species due to the a) protection in the pupa stage, favoring the survival of fertile adults. b) production of many eggs, larvae and pupae, increasing the number of adults. c) exploration of different niches, avoiding competition between life stages. d) food intake at all stages of life, ensuring the emergence of adults. e) use of the same food in all stages, optimizing the body's nutrition.
Answer:
Three major types of insect development: a) Ametabolous development typified by the silverfish, b) Hemimetabolous development typified by the cockroach; in some hemimetabola such as termites and grasshoppers there may be more than one stage with wing pads that could be called nymphal; c) Holometabolous development
The correct answer is option C) exploration of different niches, avoiding competition between life stages.
Each phase of development presents a different habitat and niche, which prevents competition between species, that is, intraspecific competition. In this way, the effectiveness of the animal within its environment is increased, as well as its adaptation to the environment.
The other alternatives highlight stages of development that exist, but are not related to the increase in the number of species or to the justification presented.
In general, the more tightly the DNA is wound around the histone proteins in a chromosome, the easier it is for RNA polymerase to access a gene and make a copy of that gene. true or false
Answer:
False.Explanation:
In general, the more tightly the DNA is wound around the histone proteins in a chromosome, the more difficult it is for RNA polymerase to access a gene and make a copy of that gene. This is because the tight winding of DNA around histones creates a compact structure called chromatin, which can restrict the access of RNA polymerase and other transcription factors to the gene. Therefore, genes that are tightly packed within chromatin are generally less accessible for transcription, while genes that are less tightly packed are more accessible for transcription.
Wildebeests: A Keystone Species Use the data provided to answer the question below in CER format. Make sure to use at least two pieces of evidence to claim and provide reasoning. FIRE! Fire is actually an important component of savanna ecosystems. Fire kills young trees and seedlings, reducing the number of big adult trees that grow over time. Since trees compete with grasses for light and soil moisture, fire actually helps the grasses and keeps the savannas open. Dr. Rico Holdo, a professor at the University of Missouri, and his colleagues modeled and wrote about the interactions of fire, rain, grasses, trees, and the various animals in the Serengeti. The interactions get complicated quickly, but I’ll try to give you a run-down of how they see fire acting in this ecosystem. First, as I’ve mentioned, fire suppresses trees and encourages grasses. If you have both fire and rain, but no animals, then something interesting happens: the rain encourages the trees, but it encourages the grasses, too. As the grasses get taller, there is more fuel for fire, and the fires become more widespread and more damaging. These fiercer fires really hurt the trees – in fact, the damage from fires (because of more rain) is more important than the extra boost the trees get directly from the rain. So more rain actually means fewer trees. With me so far? We’re now going to throw animals into the mix – well, at least some of the animals. Let’s talk about the grazers. The grazers eat the grass, and this reduces the fuel available to fire. If you have a lot of grazers, like we do in the Serengeti, the grass height is reduced a lot. That means fewer fires and that rain once again helps the trees. Further, many of the grazers are migratory and move around the landscape a lot. They don’t eat the savanna grasses in a neat, tidy, organized way. Instead, they create a patchy mosaic of grass heights, and with those different grass heights come different susceptibility of patches of grass to burn. With rain and fire and grazers, we now have a landscape of grasses of different lengths, patchy fires, and some areas dense with trees and some areas with fewer trees. All that variation means more diversity – more diversity of the grasses, plants, and trees, and more diversity of the animals that rely on them. All that diversity is due, in part, to fire. A Keystone species is a plant or animal that plays an important and unique role in how the ecosystem functions without the key stone species to ecosystem would be very different. One scientist identified Keystone specie it to look as how changes to their abundance (number ) affect other organisms. Often, there are many indirect effects of changes to ecosystems. Claim The wildebeest in the Serengeti are a keystone species. What evidence supports this claim? (Make sure to provide reasoning)
Because of their grazing habits, which limit the amount of fuel available for fires and support the preservation of a diverse ecosystem with a range of grass heights and tree densities, wildebeest in the Serengeti are a keystone species.
The wildebeest is a keystone species in what way?Wildebeest help new, diverse plants grow by grazing vegetation that could otherwise serve as wildfire fuel and reducing its overall amount. As a result, other species, such birds and butterflies, have better habitat quality, making wildebeest a keystone species.
Answers to the keystone species worksheet what is it?A keystone species is a type of plant or animal that is essential to the health of an ecosystem. Withif we lost our keystone species, the ecosystem would either vanish or undergo major alteration.
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My mother has blood type AB and my father has blood type O.
If I have blood type O, which of the following is the likeliest:
A. My father is not my father
B. I was adopted
My mother has blood type AB and my father has blood type O.If I have blood type O, which of the following is the likeliest: A. My father is not my father
What if the father's name is O and the mother's name is AB?If the father has the blood group O, his genotype is IOIO or (ii). Because the mother is of blood type AB, her genotype is IAIB. Combinations of these two groups might result in offspring with genotypes IAIO or IBIO, giving them blood groups A or B, respectively.
The father's genotype, or possible genes he may pass on, is O O, while the mother's is A B. The children's genotypes would be AO & BO.
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Please sort them out !!!
Competition- An interaction to gain a share of a limited resource. An example is an interaction between vultures, hyenas and a dead hippo.
What is competition?When resources are insufficient to meet the demands of all the organisms living in a community, competition occurs when organisms of the same species or other species use the same resources.
Within a species, either all individuals get some of a resource they need, like food or space, or some get enough to meet their needs while others, who are shut off from the resource, perish or are compelled to live in a less desirable or marginal location. The majority of the time, young people in a population suffer negative effects.
The less likely it is that two different species may coexist in the same location, the closer their requirements must be. Although they may be forced into direct competition when resources are low, species with comparable requirements can occasionally coexist in the same region if they differ in behavioural ways like feeding patterns, breeding preferences, or activity periods. When two species coexist in small populations, their members frequently have smaller-than-average bodies or have a poor reproductive rate.
Explanation:Interdependence- An interaction between two individual organisms, an interaction between animal or plant species.
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Which option is the best research question for an essay about using cell
phones in the classroom?
OA. How do cell phones affect the class participation of seventh-grade
science students?
OB. How many teenagers have cell phones?
C. Does homework actually affect student academic performance?
D. What effects do cell phones have on student performance?
Answer: D. What effects do cell phones have on student performance?
Write an essay on scientific revolution
Answer:
The Scientific Revolution was a time of great change in human history, lasting from the 16th to the 18th century. During this period, scientists and philosophers began to challenge long-held beliefs about the natural world and instead relied on empirical evidence and experimentation to understand it. This approach led to important advancements in fields such as physics, astronomy, and biology, and established the foundation for the modern scientific method.
If an object increases it mass, it ___________its gravitational pull.
A:decreases
B:increases
Answer: Increases
Explanation:
The greater the size of the masses, the greater the size of the gravitational force
Answer:
If an object increases it mass, it increases its gravitational pull.
NEED HELP ASAP!
A pea plant is heterozygous for both seed shape and seed color. S is the allele for the dominant,
spherical shape characteristic; sis the allele for the recessive, dented shape characteristic. Y is
the allele for the dominant, yellow color characteristic; y is the allele for the recessive, green
color characteristic. Fill in the Punnett square and tell how many offspring will be in the various
genotypes and phenotypes.
Parent 1 Genotype:
Parent 2 Genotype:
FOIL to determine gametes:
Parent 1 gametes:
Parent 2 gametes:
Offspring phenotype ratios:
Answer:
Parent 1 Genotype: SsYyParent 2 Genotype: SsYyFOIL to determine gametes:SsYy: SY, Sy, sY, sySsYy: SY, Sy, sY, syParent 1 gametes: SY, Sy, sY, syParent 2 gametes: SY, Sy, sY, syOffspring phenotype ratios:9/16 will have spherical and yellow seed (SSYY, SSYy, SsYY, SsYy)3/16 will have spherical and green seed (SSyy, Ssyy)3/16 will have dented and yellow seed (ssYY, ssYy)1/16 will have dented and green seed (ssyy)
What is Kobe B. Bryant's blood type?
a. A
b. B
c. AB
d. O
There is no publicly available information about Kobe Bryant's blood type.
I'm afraid there is no public info on this
describes the weather at location X on Day 1 and Day 2? Maps of predicted weather conditions are shown.
Day 1: warm and rainy Day 2: cool with more rain
Day 1: warm and windy Day 2: cloudy and cold
Day 1: clear and cool Day 2: warm and rainy
Day 1: cold and rainy Day 2: clear and sunny
Day 2
The weather at location X on Day 1 and Day 2 is option D, Day 1: cold and rainy Day 2: clear and sunny as shown on the map.
What is a weather condition?Weather condition refers to the state of the atmosphere at a particular time and place with respect to variables such as temperature, humidity, wind speed and direction, air pressure, cloudiness, and precipitation. It describes the current atmospheric conditions and can change rapidly over short periods of time.
Other examples of weather conditions include, Precipitation (rain, snow, sleet, hail), Humidity (dry, moist), Wind (breezy, windy, calm), Cloud cover (sunny, cloudy, overcast), Atmospheric pressure (high pressure, low pressure).
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which of the following is connective tissue
Answer:
please make me brainalist and keep smiling dude I hope you will be satisfied with my answer
Explanation:
Types of connective tissue include bone, cartilage, fat, blood, and lymphatic tissue.
Which words from the article help the reader to understand the importance of a special habitat?
OPTIONS
Answer:
Since there is no specific article mentioned in the question, I will provide a general answer.
The importance of a special habitat can be conveyed through various words and phrases depending on the context. Some examples of words and phrases that may help the reader understand the importance of a special habitat are:
Unique
Endangered
Fragile
Ecosystem
Biodiversity
Rare
Sensitive
Threatened
Niche
Keystone species
Habitat loss
Conservation
Preservation
Sustainability
Irreplaceable
These words and phrases may be used to describe the ecological, scientific, or cultural value of a special habitat and emphasize the need to protect it from human activities and other threats that may cause harm or destruction.
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Once alcohol is in the bloodstream it will reach the brain in a few
Once alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.
Alcohol's Effects on BrainOnce alcohol is in the bloodstream it will reach the brain in a few seconds to minutes, depending on various factors such as the amount and concentration of alcohol consumed, body weight, metabolism, and other individual factors.
Once alcohol enters the bloodstream, it can quickly cross the blood-brain barrier and affect the brain and nervous system. The effects of alcohol on the brain depend on the amount and rate of consumption, and can range from mild impairment of judgment and coordination to more severe effects such as loss of consciousness and even death in extreme cases.
Chronic alcohol use can also lead to long-term changes in brain function and structure, including cognitive impairment and increased risk of developing certain neurological and psychiatric disorders.
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Look at the food web diagram, which MOST LIKELY represents X
A) corn
B) eggs
C) foxes
D) worm
What zygomycota germinate into the new hyphae
Answer: zygospores
Explanation:
Zygomycota produces zygospores, which germinate into new hyphae.
Zygomycota produces the zygospores, which germinate into new hyphae.
The production of the zygospores is a distinguishing feature of members of the division Zygomycota which is prompted by releases of certain chemicals like trisporic acid, that make the aerial hyphae that act as a sexual organ come in contact and produce zygospores. it is the spores produced by fungi and protists.
There are so many types of fungi that are included in the division of Zygomycota. one type of fungi is black bread mold which usually spreads over bread or other types of food and sends the hyphae inwards to gather nutrients.
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Why is water considered the universal solvent?
O. It can dissolve more things than any other substance.
O It can react with more things than any other substance.
OIt can absorb more things than any other substance.
O It can separate more things than any other substance.
Please 20pts
Answer:
It can dissolve more things than any other substance.
Explanation:
Water is considered the universal solvent because it can dissolve more substances than any other liquid. This is because of its unique molecular structure and properties. The water molecule is polar, which means it has a slightly negative charge on one end and a slightly positive charge on the other end. This polarity allows water molecules to attract and surround charged particles, such as ions, and polar molecules, such as sugars and amino acids.
During translation, the tRNA anti-codon GGA codes for what amino acid?
Answer: phenylalanine.
Explanation:
The tRNA with an anticodon GAA should attach the amino acid phenylalanine.
Match the drug schedules to their descriptions.
Valid medical use but with severe limitations and high potential for abuse and dependence
Answer:
A. valid medical use but with severe limitations and high potential for abuse and dependence, for example cocaine and morphine. Schedule 2
B. maximum possibility for abuse, no valid medical use, for example heroin and LSD. Schedule 1
C. wide medical use and low potential for abuse and dependence, for example Valium and Xanax. Schedule 4
D. very low potential for abuse and wide medicinal use, for example cough medicines. Schedule 5
E. less potential for abuse and established medical use, for example barbiturates and steroids. Schedule 3
Explanation:
Expained
3. Classify the following interactions as mutualism, commensalism, or parasitism.
(a) A yucca moth caterpillar feeds on the yucca plant and pollinates the yucca plant.
(b) Lice feed harmlessly on the feathers of birds.
(c) A cowbird removes an egg from a robin's nest and replaces it with one of its own.
(d) An orchid plant grows on the branch of a tree. The tree remains healthy.
Answer:
(a) A yucca moth caterpillar feeds on the yucca plant and pollinates the yucca plant. mutualism
(b) Lice feed harmlessly on the feathers of birds. commensalism
(c) A cowbird removes an egg from a robin's nest and replaces it with one of its own. commensalism
(d) An orchid plant grows on the branch of a tree. The tree remains healthy. commensalism
Answer:
A: Mutualism
B: Parasitism
C: Commensalism
D: Commensalism
Explanation:
Mutualism is a relationship between two species of organisms in which both benefit from the association.
Commensalism is a type of relationship between two species of a plant, animal, fungus, etc., in which one lives with, on, or in another without damage to either.
Parasitism is a relation between organisms in which one lives as a parasite on another.
PART A: The yucca plant is necessary for the yucca moth larvae to live because it is their only source of sustenance. The moth pollinates the plant, and in return, the plant provides sustenance for the moth, creating a harmonious partnership.
PART B: Different types of biting lice, fleas, and louse bugs are commensals because they graze safely on avian feathers and the skin flakes shed by animals.
PART C: A female cowbird looks for other species' female birds that are busy depositing eggs in a quiet manner. After locating an appropriate host, the cowbird will break or take one (or more) eggs from the resident bird's nest while it is gone and substitute them with one (or more) of her own.
PART D:
Commensalism is the term used to describe the interaction between plants and orchids. When two species coexist, one of the species benefits while the other is unchanged.
what pattern do you identify in the data?
The identified pattern that is seen here is that : pairing bases (AT and GC) are both very close in numbers . The values are sometimes off by just 0.5
What is the Chargaff rule?The Chargaff rule, also known as Chargaff's ratios or base pairing rules, states that in a double-stranded DNA molecule, the amount of adenine (A) is equal to the amount of thymine (T), and the amount of guanine (G) is equal to the amount of cytosine (C). This is sometimes expressed as A=T and G=C.
Erwin Chargaff, an Austrian-American biochemist, discovered this rule in 1949 by analyzing the base composition of DNA from various species. He found that the amounts of A, T, G, and C in DNA differed between species, but within a species, the ratios between A and T, and between G and C, were always roughly equal.
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Help with bio homework pleaseee!
Answer options from study sheet:
a. With the help of modern technology, scientists may refine their theories.
b. Previous classification systems provide evidence that scientists use to refine their data
c. Frequently, scientists decide to change the present classification system because they do not like it.
d. New evidence derived from species allows the scientists to observe and make new connections
The two sentences that describe why classification systems are still changing are:
a. With the help of modern technology, scientists may refine their theories.d. New evidence derived from species allows scientists to observe and make new connectionsWhat are classification systems in biology?Classification systems in biology are hierarchical frameworks that organize living organisms into groups based on their evolutionary relationships and shared characteristics. These systems are used to create a system of order, allowing for the identification and comparison of different organisms.
The most widely used classification system in biology is the Linnaean classification system, which was developed by Swedish biologist Carl Linnaeus in the 18th century.
In recent years, advances in molecular biology and genetics have led to the development of new classification systems that take into account the evolutionary relationships between organisms at the molecular level.
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Complete question;
Which two sentences describe why classification systems are still changing?
With the help of modern technology, scientists may refine their theories.
b. Previous classification systems provide evidence that scientists use to refine their data
c. Frequently, scientists decide to change the present classification system because they do not like it.
d. New evidence derived from species allows the scientists to observe and make new connections
I NEED HELP 50 POINTS!!!
Answer: tatagtacgccc
Explanation:
it’s eventually going to get better dw
. coli is commonly found in:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
raw hamburgers.
cooked hamburgers.
animal waste.
romaine lettuce.
Answer: raw hamburgers
Explanation: E- coli is commonly transmitted to humans through contaminated foods such as raw or undercooked meat products, raw milk or raw contaminated vegetables.
Benefits and importance of livestock
Livestock provide a number of benefits and are important for various reasons:
1. Food: Livestock such as cows, pigs, sheep and chickens are bred primarily for human consumption, providing a significant source of protein and other essential nutrients.
2. Clothing: Animals such as sheep and goats provide wool and leather, which are used in the production of clothing and other textiles.
3. Fertilizer: The manure produced by livestock is a valuable natural fertilizer that can be used to improve soil health and increase crop yields.
4. Economic benefits: Livestock farming benefits the economy by providing employment opportunities, trade and income generation.
5. Transportation: Horses and other animals have been used for centuries to transport goods and people.
6. Cultural significance: Livestock play an important role in many cultures and traditions around the world, such as cow worship in India, the importance of cattle to the Maasai people of Africa, and the significance of sheep in Scottish and Irish folk culture.