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777dan777 [17]
3 years ago
8

All of the statements regarding the history of life on Earth are true except: Group of answer choices a) The history of planet E

arth includes alternations between colder periods ("icehouses") and warmer period ("greenhouses") on the surface of the planet b) The rise of more complex organisms such as eukaryotes has resulted in a reduction of diversity of more "primitive" organisms such as bacteria. c) There have been repeated incidents of mass extinction in the history of the planet in which species diversity has been reduced by 50% or more d) There is more oxygen in the atmosphere today than there was early in Earth history (4 billion years ago)
Biology
1 answer:
liq [111]3 years ago
3 0

Answer:

the correct answer is A

Explanation:

Option A is the one that is considered false since the warm stages that the earth goes through are called greenhouse stages, but the cold ones are not called in the same way but are called glaciation stages.

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What does it mean that cellular structures' form often predicts their function?
Crazy boy [7]

Answer:

Cellular structures means the organelles of the cell. Organelles are the parts of the cell which are responsible for their specific functions. Each organelle do some work for the cell. Some organelle produces proteins and energy i. e. ribosome and mitochondria respectively. Some are responsible for the removal of waste products such as lysosomes and vacuole. The function of cell is to produce energy from the food for the body.

3 0
3 years ago
In separate marshes, small populations of three species occur: grass fish, which disperse only in extreme rains and have an aver
Volgvan

The question is incomplete as it does not have the option which are:

a.  Grass fish, since they have the least gene flow, and gene flow acts to decrease genetic variation among populations.

b.  Swamp rats, since they will have the best balance between genetic drift and gene flow, resulting in high genetic variation among populations.

c.  Grass fish, since they are the best adapted to their aquatic environment, and adaptation increases genetic variation among populations.

d.  Marsh birds, since they have the highest level of gene flow, and gene flow increases genetic variation among populations.

e.  It is not possible to compare relative amounts of genetic variation among such different kinds of animals.

Answer:

Option-A

Explanation:

The genetic variations are introduced in a population when the new combination of gene interact with each other and again a new combination of genes are formed.  

This genetic variation is possible when the flow of gene takes place that is the individuals are dispersed to another place.

In the given population, since it has been mentioned that the gene flow of Grass fish was very low because the probability of gene flow was 1 out of 45. Thus, the gene flow was very less, therefore, the less genetic variation is introduced in population.

Thus, Option-A is correct.

8 0
3 years ago
Compounds are formed as a result of A. evaporation.B. condensation.C. a chemical change.
dlinn [17]
It would be C chemical change
7 0
4 years ago
The role of the liver in waste removal is to:
Alenkasestr [34]

The role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.

<h3>What is liver and its function?</h3>

The liver is a very important organ of human body and the weight of liver is 1.5 kg and width of liver is 15 cm. The colour of liver is reddish - brown.

The main functions of liver are it carries out the function of protein's metabolism and it excretes bile and it is also responsible for excreting cholesterol, hormones, bilirubin and drugs.

The liver also stores vitamins, glycogen, and minerals so it the center of storage also.

As liver is a very important organ so to maintain it's health a person have to maintain a healthy weight, take a balanced diet, regular exercise, avoiding toxins, and  less use of alcohol leads to keep the liver safe and healthy.

Therefore, the role of the liver in waste removal is to filter urea out of the blood and into the bladder. Thus, option A is correct.

Learn more about liver here:

brainly.com/question/15637828

#SPJ2

3 0
2 years ago
Read 2 more answers
Then the atom is pushed up against the other and released, how does it move?
Feliz [49]

Answer:

All matter is made up of atoms and molecules that are constantly moving. When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. ... The atoms can get closer which results in the matter contracting.

Explanation:

8 0
3 years ago
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