Explanation:
Hydrotropism is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration. An example of positive hydrotropism is the growth of plant roots towards higher relative humidity level.
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Why wouldn't all the new varieties of the pioneer plant survive in each new niche?
The diagram to the right shows homologous chromosomes during
prophase 1 of meiosis. Which of the following correctly
describes the process being illustrated?
Answer:
Explanation:
Crossing over in which alleles are exchanged
In Mitosis will each daughter cell have the same types of chromosomes as the parent cell?
Answer:
yes
Explanation:
They will have the same type of chromosomes
Specialized cells that help us see black and white and color
Answer:
Rod cell
Explanation:
If anyone can help it would be greatly appreciated
Why is the distinction between crude density and ecological density necessary?
Answer: Crude density includes all the land within the organism's range whereas Ecological density includes only that portion of land that can actually be colonized by the species.This variation in density is important to both the species in question and its predators.
Explanation:
Answer:
This called crude density. ... Density measure in terms of the amount of area available as living space is ecological density. Crude density includes all the land within the organism's range whereas ecological density includes only that portion of land that can actually be colonized by the species.
Explanation:
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. Which of the following is an organic compound?
a.
H2O
c.
CO2
b.
C6H12O6
d.
PH3
Answer:
the answer is C6H12o6
Explanation:
it is an organic compound
Which is a correct statement about the cell cycle?
Nothing happens during the G1 and G2 phases.
DNA replicates during the S phase of interphase.
С
The M phase is usually the longest phase.
DNA replicates during cytokinesis of the M phase.
Answer:
B
Explanation:
DNA replicates during the S phase of interphase C
Students set up the experiment shown in their Biology class. After 24 hours, students noticed gas had accumulated in one of the inverted test tubes. They measured the amount of gas.
What would be a best explanation for the gas accumulated in one of the inverted test tubes?
Answer:C) light caused the elodea plants to photosynthesize, releasing O2 gas
Explanation:
Got it right on my test
Students carried out the experiment demonstrated in biology class, and after 24 hours, they noticed gas had accumulated in one of the inverted test tubes, which is the oxygen gas produced by the plant during the photosynthesis process.
What is the experiment for photosynthesis?There are many experiments that demonstrate photosynthesis, such as when the elodea plant is kept in the sunlight, the gases are released and collected in the tube, and when tested, it is discovered that this gas contains oxygen, proving that the plant produces oxygen and glucose in the presence of sunlight.
Hence, students carried out the experiment demonstrated in biology class, and after 24 hours, they noticed gas had accumulated in one of the inverted test tubes, which is the oxygen gas produced by the plant during the photosynthesis process.
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An organism’s ability to change in form with cells becoming more specialized is called
a
Growth
b
Energy
c
Reproduction
d
Development
There is a population of 1,000 wolves. Over the course of a year 100 wolves are born.
What is the birth rate?
•0.1 births per individual per year
•10 births per individual per year
•1.0 births per individual per year
•0.01 births per individual per year
Answer:
10
Explanation:
Because 1,000 divided by 100 equals 10.
There is a population of 1,000 wolves. Over the course of a year, 100 wolves are born. The birth rate is 10 births per individual per year. The correct option is b
What is the birth rate?Birth rates of organisms decline and mortality rates increase in density-dependent populations due to numerous factors affecting the rate of reproduction and survival.
When there is a disease, competition, or predation in that organism, it has a higher mortality rate and a lower growth rate. These three factors reduce the birth rate and raise the death rate in an organism's population.
If both the death and birth rates are low, the population will not grow significantly and will remain relatively stable.
1000 / 100 = 10
Therefore, the correct option is b, 10 births per individual per year.
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Macromolecules are macros made up of cules. true or false?
Answer:
This is true
Explanation:
Macromolecules are large molecules composed of thousands of covalently connected atoms. Carbohydrates, lipids, proteins, and nucleic acids are all macromolecules. Macromolecules are formed by many monomers linking together, forming a polymer. Carbohydrates are composed of carbon, oxygen, and hydrogen.
Answer
true
Explanation macros and cules made macromolecules
What is the function of lungs in mammals?
A.generate warmth
B.nutrient usage
C.gas exchange
D.circulation of blood
Answer:
gas exchange
Explanation:
Below is a punnett square showing a yellow lab with the genotype BBee being bred with a black lab
with the genotype BbEe. Fill in the missing data in the header rows.
please help
Answer:
first third one Bb and the last one BbEe
Explanation:
Answer:
top row: Be, Be
bottom row: be
Explanation:
What is the Function of the Respiratory System?
Answer:
The respiratory system is a network of organisms and tissues that help you breathe. This system helps your body to absorb oxygen from the air so your organs work. It also cleans waste gases, such as carbon dioxide, from your blood
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What is the correct pathway that food travels during digestion? *
a. Mouth, stomach, esophagus, small intestine, large intestine
b. Mouth, esophagus, small intestine, stomach, large intestine
c. Mouth, esophagus, stomach, large intestine, small intestine
d. Mouth, esophagus, stomach, small intestine, large intestine
The correct pathway that the food travels during digestion is Mouth, esophagus, stomach, small intestine, large intestine. The correct option is D.
What is alimentary canal?The gastrointestinal tract (also called the digestive tract). This long tube of organs serves as a conduit for food to pass through the body. It includes the esophagus, stomach, and intestines and runs from the mouth to the anus (where poop comes out).
The digestive system's alimentary tract is made up of the mouth, pharynx, esophagus, stomach, small as well as large intestines, and rectum.
The alimentary tract's primary function is to convert food into absorbable particles and transport them to the body's other organs.
The correct digestive pathway is the mouth, esophagus, stomach, small intestine, and large intestine.
Thus, the correct option is D.
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How can the number of channel or carrier proteins present in the membrane affect the rate of transport of substances into the cell?
Answer:
The more protein channel or carrier a cell has, the faster will be the transport of a specific compound. In other side, lower will be the transport of the rest of compounds, such as O2, H2O.
Explanation:
A protein channel or a carrier protein acts as facilitators in the transport of compounds. The compounds who are polar can't pass easily, or can't even pass, trough the plasmatic membrane, because of it's nonpolar center. So, the cell needs to provide a way for the polar compounds who are needed inside or outside of the cell, thus we have the proteins channel or carrier. They form a polar way for the polar compounds pass into or out the cell.
However, the more proteins we have to transport, less space the membrane will have for the others compounds, because every transport protein just acts with a specific compound or others very similar to it.
Which function is shared by the immune and integumentary system ?
- excretion
- movement
- protection
Or - storage
The correct answer is protection because the integumentary system provides protection.
The skin and other parts of the integumentary system work in concert with other organ systems to maintain homeostasis. The skin works with the immune system to protect the body from pathogens by acting as a physical barrier to microorganisms.
Description: This feature is usually called the exoskeleton because it can be the hair of the nail, or basically the inner one that grows naturally on the outside, but in this case, it is not the exoskeleton, It is there to protect.
What are the functions of the integumentary system?The skin has three main functions: protection, regulation, and sensation.
Thus it concludes that the integumentary system has the ability to provide protection.
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In 1831, Charles Darwin visited the Galapagos Islands While observing the giant land tortoises that lived on these islands, Darwin noted that the shape of the tortoise shell varied depending on which island the tortoise lived. Tortoises on one island had round shells, for example, whereas tortoises on aneighboring island had more flattened, saddle-shaped shells. Which statement BEST summarizes Darwin's explanation for these differences?
A) Random mutations caused the shape of the shells to fluctuate periodically.
B) The shape of the tortoise shell varied because the predators on the islands were all similar.
C) The particular shape of the shellwas best suited for the island on which the tortoise was living.
D) Tortoises who used their shells in special ways caused the shells to become larger, rounder, or flatter.
Answer:
The answer is C!
Explanation:
Because i just had this on a test
please help .this is very important
In the middle of the night, you are awakened by hunger pains. You proceed to get up and go to the kitchen to have a couple of cookies and a glass of milk. Satisfied you go back to bed content. Explain in detail what tissues, organs, and organ systems are involved in completing that task. Be sure to include how the systems interact. The more detail the better! Start with getting up to get the food and include details on the steps in how the food gets digested.
Explain in detail
Answer:
Mouth, stomach, liver, pancreas and small intestine.
Explanation:
If we eat these foods which have carbohydrates, its digestion starts from the mouth because the saliva present in the mouth mixes with the food and start its digestion. When the food reaches to the stomach, the foods are broken down into micromolecules with the help of enzymes secreted by liver and pancreas. After that the food goes to the small intestine where absorption of nutrients and water also occurs.
How are the feeding methods used by sea urchins and sea stars similar and different?
Answer:
Sea urchins use five-part jawlike structures to scrape algae from rocks. Sea lilies use tube feet along their arms to capture floating plankton. Sea cucumbers move like bulldozers across the ocean floor, taking in sand and detritus. Sea stars usually feed on mollusks such as clams and mussels.
Explanation:
identify 2 materials that are transported by the blood.
Explanation/Answer :Blood moves continuously through the body, delivering oxygen and other materials to cells and removing carbon dioxide and other wastes from cells.
Which of the following could result in speciation from biogeographic isolation?
the isolation of two populations of the same species
the isolation of two individuals of the same species
the isolation of two populations of different species
the isolation of two individuals of different species
Answer:
the answer is A the isolation of two populations of the same species
Explanation:
took the quiz got an 97
The isolation of two populations of the same species.
What is specification of population?Specification is the formation of new and distinct species in the course of evolution.
This speciation involves the splitting of a single evolutionary lineage into two or more genetically independent lineages.
Speciation from biogeographic isolationSpeciation from biogeographic isolation can result from the isolation of two populations of the same species.
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Why are linked traits inconsistent with Mendel's laws?
Answer:
Linked Genes Violate the Law of Independent Assortment. Although all of Mendel's pea characteristics behaved according to the law of independent assortment, we now know that some allele combinations are not inherited independently of each other.
Explanation:
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Mendel studied the transmission of genes in peas(pisum sativum) that were placed on different chromosomes. During meiosis there are two types of recombinations that make sure the offspring is different from the parent. First intrachromosomial recombination (crossing-over)where genetic material is exchanged between chromosomes. And interchromosomial recombination when homologous chromosomes are separated.
In Mendel's experiments only interchromosomial recombination was considered, but when Thomas Hunt Morgan experimented with Drosophilla Melanogaster he didn't get the same results because he focused on genes that were placed on the same chromosome. In this situation crossing over influenced the results.
Hello! I Need help with this. Please Help Make Sure you explain your answer i will be marking brainliest to the first person who has the right answer.....:D
Answer:
D
I dont really know how to explain it
Which statement describes the difference between incomplete dominance and codominance? In codominance, only one allele is expressed in the offspring; In incomplete dominance, both alleles are expressed in the offspring. In codominance, both allels are expressed in the offspring; In incomplete dominance, only one allele is expressed in the offspring. In codominance, both alleles are expressed in the offspring; in incomplete dominance, the offspring demonstrate an intermediate form of the alleles from the parents. In codominance, the offspring demonstrate an intermediate form of the alleles from the parents; in incomplete dominance, both alleles are expressed in the offspring.
Answer:
the answer you are looking for is C
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Answer:
c
Explanation:
A population of Muscovy ducks contains 13 birds with black masks and 37 birds with red masks. Red masks are the dominant trait. What is the frequency of the black allele? What is the frequency of the red allele? What is the frequency of heterozygotes?
Answer: Black allele has frequency of 0.14.
Red allele has frequency of 0.86.
The frequency of heterozygotes is 0.241
Explanation: Hardy-Weinberg model states the frequency of alleles in a population will stay in equilibrium as long as there are external influences. It is also used to determine alleles frequencies using the following equations:
[tex]p+q=1[/tex]
[tex]p^{2}+2pq+q^{2}=1[/tex]
p represents frequency of dominant allele;
q represents frequency of recessive allele;
2pq is frequency of heterozygotes;
For the frequency of red allele, which is dominant, we can use:
[tex]p^{2}=\frac{37}{13+37}[/tex]
[tex]p^{2}=\frac{37}{50}[/tex]
[tex]p^{2}=0.74[/tex]
[tex]p=\sqrt{0.74}[/tex]
p = 0.86
For the black allele:
[tex]p+q=1[/tex]
[tex]q=1-p[/tex]
[tex]q=1-0.86[/tex]
q = 0.14
Frequency of heterozygotes is
2pq = 2(0.86)(0.14)
2pq = 0.241
Frequencies for a population of Muscovy ducks are 0.86 for red allele, 0.14 for black allele and 0.241 for heterozygote.
In non-medelian genetics, chickens have a trait for feather color. Black is dominant and so is white. The heterozygous version of the bird has a checkered pattern which shows both white and black feathers. What type of non-mendelian genetics is shown?
A. Incomplete dominance
B. codominace
C. Two-trait dominance
D. This is mendelian genetics not non-mendelian genetics
Answer:
B. codominance
Explanation:
I know this for sure
All of the members of the same species in the same place at the same time that can interbreed.
O genepool
O population
O community
O species
Answer:
Genepool
Explanation:
I hope this helps
if the stomata could not close , would that be a good or bad thing for the plant?
Answer:
Transpiration is the process of evaporation of water from the leaves and stems to the atmosphere. The stomata close when the guard cells shrink, which in turn ceases the transpiration. Opening of stomata allows the process of transpiration, so the root cells do not die.
But if it can't close:
The downside to wide open stomata is increased water loss (transpiration). So stomata of cool-season turf grasses have decisions to make. The plant needs to capture and store energy via photosynthesis, however, excessive water loss through transpiration can result in plant injury or death.
It's a bad thing.
An insect in amber is an example of which of these?
You say which of these like there’s options but I see no options
An insect in amber is an example of a true form fossil because they are preserved in their natural form