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Alla [95]
3 years ago
11

Which of the following is NOT a function of Earth's atmosphere?

Biology
1 answer:
Karolina [17]3 years ago
7 0
C because the inside of earth with tectonic plates and such controls volcanoes
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Describe two negative ways that the animals living in the area have been affected by the
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less space, and less food because of the houses

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2 years ago
Biology ecology unit review protect
Dmitry_Shevchenko [17]

Answer:

Ecology is the study of environment and biology is study of plant and animals.The interrelationship between an organism and environment

Explanation:

Ecology is the study of organisms, its distribution, abundance,interrelationship with another organism and the interaction of organisms with their environment in which they adapt to survive.

Sunlight is the main source of energy for living beings on earth. Movement of energy flow and nutrient cycle plays a significant role in living beings.

In ecology there are different levels of organization such as species,  population community,ecosystem,biome and biosphere.

There are different cycles which an organism required to survive, carbon cycle, nitrogen cycle, oxygen cycle, phosphorous cycle, and of course the most basic thing to survive is the water cycle. All these cycles coming under one term called the biogeochemical cycle.

The ecological pyramids such as pyramids of an ecosystem, pyramids of number pyramids of energy flow and pyramids of biomass based on these pyramids living things survive.

3 0
3 years ago
Summarize key differences between allopatric and sympatric speciation. Which type of speciation is more common and why? Describe
algol13

Q1: Summarize key differences between allopatric and sympatric speciation.

As we know, the term speciation refers to the process of emergence of new specie on earth due to increase in the genetic diversity of the gene pool of an organism. Allopatric and sympatric are basically mechanisms through which speciation occurs in the world and below are the major differences between these two:

  • In Allopatric speciation, there is a physical barrier between two populations due to which no genetic exchange or gene flow can occur between two population to lead the formation of two new specie over the course of time, on the other hand, in sympatric speciation, two species live in the same geographical area and there is no physical barrier between them, but due to certain traits like preference of certain shelter or food or zygotic incompatibility they donot mate much and eventually develop into new separate species.
  • Allopatric speciation is basically nature driven and operates through natural selection, while sympatric is driven through the mechanism of polyploidy when chromosome set is replicated.
  • Allopatric speciation is common in both plants and animals, while

       sympatric is common in plants.

  • In Allopatric speciation the rate of emergence of new specie is slow fast but in sympatric speciation it is relatively faster.
  • The example of allopatric speciation is the formation of new species of Darwin's finches in Galapagos Island, while the example of sympatric speciation is Alloploid species of Wheat.

---------------------------------------

Q2: Which type of speciation is more common and why?

Allopatric speciation is more common in nature as compared to Sympatric because the main factor leading to speciation in Allopatry is geographical barriers while in the latter one they are nature induced gene flow in population living in same area. Hence geographical barriers are more powerful factor that greatly lessens the transfer of genes in a population while in Sympatry the reduction in genetic flow is less because after all population is living in same habitat.

Here we can take an example of Galapagos Island finches, which were a same specie of finches but when they were isolated through geographical barrier, there were remarkable difference created in the novel species of finches as compared to parent specie. On the other, If we think about the novel varieties of Wheat plants that arise through polyploidy, this polyploidy is only restricted to plants and donot occurs in animals and therefore it is less common.

-----------------------------

Q # 3: Describe two mechanisms that can decrease gene flow in sympatric populations, thereby making sympatric speciation more likely to occur

The two possible mechanisms that can reduce genetic flow in symatric populations are:

1: Changes in chromosome: As we just discussed the example of polyploidy in wheat in which chromosome set is duplicated and new species are formed, in this way they are not able to breed with original parental population and this makes process of Sympatric speciation more likely to occur.

2: Habitat differentiation and sexual selection: This is the second major cause that can lead to Sympatric speciation, What happens in it that some members of a population (the cause is not known) have better preference for a certain place or habitat rather than other and some due to zygotic incompatibility cannot produce offspring due to which they are slightly isolated and with the passage of time give rise to separate specie and ultimately favors sympatric speciation mechanism.

---------------------------------------

Q 4:  Is allopatric speciation more likely to occur on an island close to a mainland or on a more isolated island of the same size? Explain your prediction.

Allopatric Speciation is less likely to occur in an Island close to a mainland and more likely to occur on an Isolated Island, The reason again lies in the definition of Symaptric speciation. When the Island is in close proximity of mainland, obviously there will be a continuous genetic flow between mainland and Island because of their less distance and less chances of genetic divergence. On the other hand if they are suitably separated through a substantial distance, there will be more chances that some members of specie will acclimatize new area better and with the passage of time, will evolve into new species.

Hope it helps!

5 0
3 years ago
What is the evolutionary advantage of the Guinea worm?
NNADVOKAT [17]
They aren’t dead yet
6 0
3 years ago
During an enzymatic reaction, a molecule of binds to the enzyme and is broken down into one or more molecules of____, which are
Ugo [173]

During an enzymatic reaction, a molecule of substrate binds to the enzyme and is broken down into one or more molecules of product , which are released.

<h3>What is substrate and product ?</h3>

While products can be produced at the end of the reaction, substrates are the reaction's initial raw material. The distinction between a substrate and a product is that a substrate is the substance used to initiate a chemical reaction, whereas a product is the compound formed when the reaction is finished.

<h3>What do you mean by enzymatic reaction ?</h3>

In an enzyme reaction, the free enzyme E binds to its substrate S to form the enzyme-substrate complex (C1), which is then catalyzed into the enzyme-product complex (C2), from which the free enzyme and product P are released: S + E ↔ C1 ↔ C2 → P + E. This is known as the "lock-and-key" model in enzymatic reactions. The great majority of cellular reactions are represented by this paradigm.

Thus from the above conclusion we can say that during an enzymatic reaction, a molecule of substrate binds to the enzyme and is broken down into one or more molecules of product , which are released.

Learn more about the Enzymatic reaction here:

brainly.com/question/11276447

#SPJ4

7 0
1 year ago
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