Marine iguanas are found only on the galapagos islands which biodiversity pattern does this represent?.
a. species vary globally .
b. species vary locally .
c. species vary over time .
d. species vary when isolated . .

Which of the following statements correctly defines evolution? .
a. evolution is the rate at which an individual organism changes .
b.evolution is the difference between animals in different places .
c. evolution is the comparison of fossils with living creatures.
d. evolution is the process through which species change over time . .

As per the information given in the question, Marine iguanas are found only on the galapagos islands. This indicates that throughout world, different species are found and some species are restricted to a particular area due to particular environmental conditions. Therefore, it can be said that species vary locally.

The correct answer for second question is- D). evolution is the process through which species change over time.

Evolution can be described as a process of change in the characteristics of organisms over many generations. It can be driven by various mechanisms such as natural selection, genetic drift.

avantikar avantikar · Answer 2 · 2020-02-20T12:02:32+01:00

• Marine iguanas are found only on the Galapagos Islands.

• Evolution is the process through which species change over time.

Further Explanation:

The climate changes, continental shifts, availability of food, and other geological changes are responsible for the variations that occur over time. The changes in the environmental conditions lead to evolution, whereas, during the periods of environmental stability, the evolutionary variations are limited. Substantial and evolutionary changes are the result of artificial selection.Fossil record helps to determine more direct evidence for evolution to occur over some time.It is examined that rates and direction of evolution have varied widely over time. Therefore evolutionary change has been far from constant and uniform. Some periods show little observable change and some periods show a great diversity.

Different species of iguanas are present on a different island. But marine iguanas are only present on Galapagos Island because they have evolved in such ways that only adapt or thrive in marine habitats. Also, the availability of insects and fishes (food) in water allows them to proliferate or survive in marine conditions.

Learn more:

1. Learn more about the abiotic factor https://brainly.com/question/1561256

2. Learn more about the cellular respiration https://brainly.com/question/8900186

3. Learn more about the primary and secondary succession https://brainly.com/question/4723069

Answer Details:

Grade: High School

Subject: Biology

Chapter: Evolution

Keywords:

Climate changes, evolutionary changes, food, diversity, marine iguanas, fishes, insects, stability, period, habitats, direction.