Answer:
It helps life survive on Earth.
Explanation:
Since water ice floats, it helps life survive on Earth. This ice layer insulates the water below it, allowing it to stay liquid, which allows the life within it to survive. If ice sank, the liquid water on top would also freeze and sink, until all the liquid water became frozen.
what is process of forming an exact copy of the dna molecule called?
Which phase describes "movement away from each other" on a molecular level?
A) Solid
B) Gas
C) Liquid
D) Methane
Answer:
B
Explanation:
gas particles are faster and move free
The pitcher’s mound in baseball is 85m from the plate. It takes 4 seconds for a pitch to
reach the plate. How fast is the pitch?
Answer:
21.25 m/s
Explanation:
Rainforests are not found in
a. Alaska
b. Greenland
C. Australia
d. Africa
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Greenland
Explanation:
Rainforests are found in Alaska, Australia, and Africa, but not Greenland.
How do divisions in the geologic time scale differ from the way we organize time using a clock?
Explanation:
The Earth's geologic past is divided into hierarchical time periods. This hierarchy comprises eons, eras, times, epochs, and ages, from largest to smallest. The Cenozoic, Mesozoic, and Paleozoic Periods are the three main divisions of the Phanerozoic.
The geological timescale is the official earth clock and differs from the way we organize time using a clock, as the planet's time is too long for us to use measures of hours.
Geologic timescalePlanet Earth is about 4.5 billion years old. To better understand its history, scientists divide geologic time into five levels of classification, called chronostratigraphic units:
EonsErasPeriodsEpochsand ages.Eons are large and indeterminate spans of time and are divided into four classifications:
Phanerozoic (last 542 million years)ProterozoicArcheanand Hadean.Of them, only the Hadean is not divided into ages. The ages are characterized according to the different positions of continents, oceans and their living beings. Within the ages are divided in the periods. Epochs, in turn, are divisions within periods and are divided into ages. According to the researchers, we currently live in the Quaternary period of the Cenozoic era.
To get a rough idea of how much the existence of the human being is a mere recent episode in Earth's geological time, we use some analogies. For example, if the entire history of the planet were summarized in the twenty-four hours of a day, the existence of humanity would have occurred in the last three seconds of that same day.
Understanding the dimension of geological time and its scales of measurement becomes a fascinating mental exercise to better understand the role of man in relation to this temporality and his role as heir of all the transformations that have taken place in terrestrial space throughout the geological ages.
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Genetic mutations can occur during meiosis and be passed on to the next generation. What is a benefit of this process?
Answer:
The benefit of this is let's say theoretically you're mom got small pox at age 10 and gave birth to you at age 35 her DNA was built up to withstand small pox if she gets it again. If a small amount of her DNA is in you then chances are she passed that immunity to you and you have mutation for the better.
Answer: Genetic variation is increased.
Explanation: Just took the test and it was right.
Why are populations with high levels of genetic diversity more stable than populations with low levels of genetic diversity?
A.
Populations with high levels of genetic diversity are more likely to have individuals that will undergo
natural selection if conditions
change.
B. Populations with high levels of genetic diversity are
to more likely to have individuals with traits that help them survive if conditions
change.
X
C. Populations with high levels of genetic diversity are less likely to interbreed with other populations.
D.
Populations with high levels of genetic diversity are less likely to have high levels of variation in
alleles.
Answer:
d
Explanation:
.
How are mechanical waves produced?
Answer:A mechanical wave is created when a source of energy causes a vibration to travel through a medium. ... Both carry energy through a medium with out transferring matter. In transverse waves, the medium vibrates perpendicular to the direction of wich the wave travels.
Explanation:
PLEASE ANSWER FAST
Which type of nerve cell receives messages from the environment?
A. Interneuron
B. Outer nerve cell
C. Motor neuron
D. Sensory neuron
Answer:
D. Sensory Neuron
Explanation:
Sensory neurons are the nerve cells that are activated by sensory input from the environment.
Answer:
D. sensory neurone
Explanation:
sensory neurone receives information via their receptors, which are part of the peripheral nervous system, and convert this information into electrical impulses.
Plz help me well mark brainliest if you are correct!
Answer:
Explanation:
Uh this is gonna be kinda hard cause they are all examples of renewable resources. . .
but I would just say go with what the other pearson said :D
Which of the following is a likely effect of the tornado on the plains ecosystem?
Answer:
Flying debris could harm a population of bison
9. Plants can reproduce
A. sexually and asexually.
B. constantly
C. only by cutting or budding.
D. only using pollination.
Answer:
A. sexually and asexually
Explanation:
A. Sexually and Asexually
Explanation:
there is a way they can have sexual reproduction by one parent
Which of the following information would be most useful in determining whether 2 species are closely related?
A) There leg bones look very similar
B) The age of their bones, determined by carbon dating, is the same
C) The dna sequence found in their bones varies by only a few genes
D) The bones were found in the same layer rock
The most helpful way to determine whether two species are closely related is by comparing the appearance of their leg bones which is called as the Analogous structure. So, the correct option is A.
What is an Analogous structure?In contrast to homologous structures, analogous structures are characteristics of different species that have evolved in response to a similar environmental challenge and are similar but not necessarily in structure.
Example of Analogous structures are an insect's wings and a bird's wings are similar in structure. Although each of these species utilize their wings to fly, the origins of their wings are different.
For the aforementioned example, examining the appearance of two species' leg bones will most accurately reveal whether two species are closely related.
Therefore, the correct option is A.
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Which natural resource is renewable?
A. coal
B. wind
C. topsoil
D. oil
Wind is the natural resource which is renewable. Therefore, option (B) is correct.
Wind energy is considered a renewable resource because it comes from the natural flow of air masses caused by the sun and the Earth's rotation. Wind turbines turn the kinetic energy of the wind into power, and as long as there is wind, this process can keep going forever.
Wind doesn't run out like coal and oil (options A and D), which are both solid fuels. Topsoil (choice C) is an important resource for agriculture, but it can be worn down or eroded over time, making it non-renewable in the short run if it is not managed well.
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What is an example of biotechnology? What example from the Gene Editing article explains how biotechnology can be used for carbohydrates, lipids, and proteins?
Answer:
Synthetic insulin and synthetic growth hormone and diagnostic tests to detect various diseases are just some examples of biotechnology
Example of Gene Editing is Dalmatians, which often carry a genetic mutation that makes them prone to suffer from bladder stones.
?
Explanation:
HAVE A GOOD DAY
Is this correct? If not plz help!
PLEASE HURRY IT'S FOR A TEST!!!!!!!!!
What is the difference between rotation and revolution? Which one determines the planets length of day and which one determines the length of the year
Answer:
Rotation is when an item or object (specifically the earth) rotates on it's axis.
Revolution is when an item (the earth) orbits or "revolves" around another one (the sun).
The rotation of the earth determines how long a day lasts while the revolution (or orbit) determines how long a year lasts (with all of the season).
Also you don't have to put the ones in the parentheses ()
The results of the Milgram experiment showed that:
O A. people would pick the wrong line even though they knew it was
wrong.
B. people would adopt assigned roles very quickly and without
question.
C. even though people were sometimes uncomfortable, they still
obeyed the authority figure.
D. people had no problem or concerns about obeying an authority
figure.
Answer: c
Explanation:
ap*x
The Milgram experiment revealed that participants obeyed even when they are feeling uncomfortable. The correct option is C.
What is Milgram experiment?Milgram explains the psychology of genocide and answers the popular contemporary question.
Based on this experiment, the behavior showed up by the people is they even uncomfortable, still they obeyed the authority person.
The correct option is C.
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What is gene flow?
Helppppppppppp
Answer:
A the movement or organisms or their genetic material from one population to another
Answer: number 1
Explanation:
In population genetics, gene flow is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent allele frequencies and therefore can be considered a single effective population.
Which of the following statements about DNA (deoxyribonucleic acid) is NOT true?
A. Varied chromosomes make up DNA.
B.Genes are comprised of segments of DNA.
C. Genetic material is passed from parent to offspring via DNA.
d. DNA is a set of instructions which determines the traits of an organism.
ND WHOEVER HAS A LINK OR DOES/SAYS SOMETHING IRRELEVANT DO NOT COMMENT
Answer:
I think D is incorrect.
Explanation:
BTW THOSE ARE BOTS MY SILLY SELF FR SEARCHED IT UP ON MY COMPUTER AND STUFF KEEP POPPING UP LOL. but glad it's my school computer. :) HOPE THAT HELPED
Knowing that the teenage brain rewards risk is:
-a warning to make choices carefully.
-an excuse to make bad decisions.
-not relevant because parents make all decisions for their teens.
-a reason to lower the drinking age.
Explanation is in a file
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How are Killer Whales like the Wolves of the Rocky Mountains? And is this innate or instinctive behavior?
What are two characteristics of S waves?
Answer:
Speed 1
Explanation:
Sound wave can be described by five characteristics: Wavelength, Amplitude, Time-Period, Frequency and Velocity or Speed. 1.
.What are two reasons hypoxic tumors are
are resistant to chemotherapy?
Answer:
chemotherapy target rapidly proliferation cells and there is poor penetration of many drugs to tumor cells that are located distal to functional blood vessels hypoxic cells are also likely to resistant to chemotherapy
1.Non-living things, such as a car, often show characteristics similar to those of
living organisms.
a) State which characteristic of a living organism matches each of the descriptions
linked to a car.
(i)
burning fuel in the engine to release energy...
[1]
(ii)
headlights that switch on automatically in the dark.
(iii) filling the car's tank with fuel..
. [1]
(iv)
release of waste gases..
-- [1]
b) Identify one characteristic of living things that is not carried out by a
car......
... [1]
Answer:
burning fuel in the engine to release energy...
[1]
Explanation:
i think
The greatest amount of energy is released by the...
5. Which of the following statements is true about natural systems?
Answer:
im sorry i dont see and question or anwsers to help maybe tryb reposting
Explanation:
Answer:
B. Producers are at the bottom level of both the energy pyramid and the biomass pyramid.
Explanation:
Both the biomass pyramid and the energy pyramid have producers at the bottom.
Producers account for most of the biomass and most of the available energy in any given ecosystem.
fertilization is the process by which an a)egg and pollen combine b)embryos grow into plants c)animal carries pollen between plants d)ovule breaks open and release seeds
Answer:
l
Explanation:
15. What must occur in order for genetic material to be passed to cells during cell division?
A DNA replication
B RNA synthesis
C osmosis
D diffusion
Answer:
A
Explanation:
the process involves replication of cell's chromosomes, segregation of the copied DNA and splitting of parent cell's cytoplasm
In order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.
What is the significance of DNA replication in cells?DNA replication is the process by which the genetic contents of a cell, the DNA, are copied which is a crucial process that occurs in all living organisms and is necessary for the maintenance of their genetic information and the transmission of this information to the next generation, it is essential for cell division and growth, as well as for the repair of damaged DNA and plays a central role in animals and plants, as new life can form and cell division takes place due to this process.
Hence, in order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.
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Mammals and plants don't belong in the same domain
Answer:
True
Explanation:
many people think they can live together they cant