7. What form of non-Mendelian inheritance wherein both alleles are expressed at the same time and the hybrid organism shows a third phenotype?

A Codominance
B. Sex-limited
C. Incomplete Dominance
D. Multiple Alleles

8. Which of the following is a good example of multiple alleles in human population?

A. ABO blood group
B. Hemophilia
C. Colorblindness
D. Baldness

9. Why is biodiversity important to ecosystems?
A. It helps populations adapt to ecological changes.
B. It allows animals to feed permanently from one type of plant.
C. It increases at each level of the food chain.
D. It reduces the number of insects in a given ecosystem.

10. Which of the following is NOT a natural cause of extinction?

A. catastrophic events
C. Introduction of non-native species
B. competition due to overpopulation
D. diseases​