3. Which factor below helps species avoid extinction?
A. Low reproductive rates
B. high economic importance
C. limited habitats in which to live
D. able to adapt to changes in their habitat
I think its D.
4. If there continues to be a loss in biodiversity in plants and animals, which prediction would be correct?
A. There would be a change in climate and weather.
B. There would be a change in animal interactions and populations.
C. There would be an increase in animal species
D. Both A and B
I think its D.
I agree that 3D is correct
For #4, why would animal biodiversity affect weather and climate? I'd have chosen just B.
3D is definatly correct. As for 4, I would choose B because populations would decrease and limit interaction between organisms. A is not correct because though a change in climate and weather could cause a loss in biodiversity, a loss in biodiversity can not change he weather. C is not the correct answer to this question but it is theoretically possible. As biodiversity decreases some animals have been known to change drastically in a short time to cope with the changes. For example: the komodo dragon populations in Indonesia have been falling fairly quickly in recent years due to global warming. It was found that female komodo's were still producing eggs without the presence of males in the area. This change happened in a matter of a few months and the komodo dragon populations have been stedially increasing ever since. The females adapted to their environment as fast as possible which has allowed the species to come back from the brink of extinction.
For Question 3, the factor that helps species avoid extinction is "D. able to adapt to changes in their habitat." This factor is crucial because habitats can undergo various changes over time, such as climate change, introduction of new predators, or alteration of resources. The ability to adapt allows species to adjust to these changes and survive. To arrive at this answer, you can eliminate options A, B, and C because low reproductive rates, high economic importance, and limited habitats do not directly contribute to avoiding extinction.
For Question 4, the correct answer is "B. There would be a change in animal interactions and populations." Loss in biodiversity can disrupt the delicate balance of ecosystems, leading to changes in interactions between different species and causing fluctuations in their populations. While loss of biodiversity can have broader impacts, such as altering climate and weather (option A), the immediate and more direct effect is on the interactions and populations of plants and animals. So, option D is incorrect.