Question

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Question 30: What theory did the presence of iridium, an element only found in extraterrestrial objects, in geologic deposits dating to 66 mya around the world support?

1)The impact of a giant meteor that struck Earth produced mass extinctions of dinosaur species across the planet.

2)Alien material was a factor in the origins of species on this planet.

3)Catastrophes occurred in the past and produced major changes in species, causing dinosaurs to adapt and eventually become mammals.

4)Cuvier’s proposal of catastrophism as the theory explaining human origins is correct.
Question 37:

Today, the evolutionary synthesis brings together a range of sciences dealing with biological variation, including genetics, taxonomy, comparative anatomy, and biological anthropology.

1) True

2)False

Question 38

What happens when adaptive radiation occurs?

1)One species gives rise to multiple, closely related species.

2)Several species adapt to one environment.

3)Species adapt to environments with high radiation levels.

4)An individual adapts to varying environments.

Question 39

Darwin’s theory of evolution proposes that

1)species adapt and change over time based on the environment.

2)an individual can change within its own lifetime.

3)species adapt based on individual goals.

4)individuals determine their own biological adaptations.

Answer 1

30). Correct option is '1'.

The iridium anomaly(presence of abundance of iridium) explains that the mass extinction of the dinosaurs can be connected to the impact of a meteor strike. This is known because large amounts of iridium is only found in extraterrestrial objects.

37). True.

The modern evolutionary Studies require that many specialized fields of study come together to do a holistic analysis. Genetics, anatomical science, taxonomy all are required to reconstruct the evolutionary history.

38). Correct option is'1'

Adaptive radiation is the phenomena when one ancestral species gives rise to many closely associated species. This may be caused by many environment related factors such a s changed climate, resource types etc.

39). Correct option is'1'.

Darwin's theory of Natural Selection describes that species adapt and change in response to the changes in their environment. Other things play a subordinate role, what major part in adaptation is played by environment and nature.

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