Biology Exam Review 7

Biology Exam Review 7

1. Ammonifying bacteria are involved in the conversion of:

• Nitrogen in compounds to NH4+

2. Which chamber does blood get pushed into the aorta from when the ventricle contracts?

• Left ventricle

3. Which chamber does blood get pushed into the pulmonary artery from when the ventricle contracts?

• Right ventricle

4. What is the composition of chromosomes?

• DNA

5. What method can be used to create multiple new plant varieties from a single initial plant that are homozygous for all gene pairs?

• Pollen culture

6. Vascular plants and terrestrial animals emerged in the:

• Paleozoic (Silurian)

7. Expanding the ecological niche is a form of competition:

• Intraspecific

8. Plants photosynthesize during the:

• Day

9. Narrowing the ecological niche is a form of competition:

• Interspecific

10. The dark phase of C3 plant photosynthesis releases:

• Glucose and absorbs CO2

11. The light phase of C3 plant photosynthesis releases:

• O2

12. When the body loses blood, blood pressure:

• Decreases

13. Increasing heart rate will increase:

• Blood pressure

14. Larger organisms tend to have a slower:

• Heart rate

15. When the atrium contracts, it pushes blood into the:

• Ventricles

16. When the ventricles contract, they push blood into the:

• Arteries

17. Blood pressure depends on:

• Blood volume

18. When talking about the age structure of a population:

• A population is growing when the pre-reproductive group is smaller than the reproductive group.

19. A pre-reproductive group smaller than the pre-reproductive group which is smaller than the reproductive group will lead to:

• Population decline

20. Compared to a species with a narrow distribution, the age structure of a species with a wide distribution is generally…

• More complex

21. The genes in the cell nucleus have the same number of:

• Replications

22. Genes in mitochondria and chloroplasts are independent from genes in the:

• Nucleus, so they can have different numbers of replications

23. Genes in mitochondria and chloroplasts can have:

• Multiple copies

24. Transcription does not cause:

• Gene mutations

25. Random factors can completely eliminate:

• Aa and aa

26. Larger individual size means a smaller:

• Population size

27. When a population reaches its maximum size, the number of individuals will … with environmental conditions:

• Be balanced

28. If a population size falls below the minimum, the process of … is more likely to occur:

• Inbreeding

29. The phenomenon of … helps to maintain population size stability:

• Biological control

30. Remoras living attached to larger fish is an example of:

• Commensalism

31. Below the minimum level, populations usually become extinct, not immediately, but through …:

• Inbreeding

32. Factors that lead to decreased reproduction and increased mortality:

• Inbreeding, intraspecific competition, disease, natural disasters

33. Remoras and microorganisms are an example of:

• Commensalism

34. Microorganisms do not have … with each other:

• Relationship (specifically commensalism)

35. Commensalism is:

• One species benefits, one species is neutral

36. If the remora is eliminated:

• Microorganisms will detach from the larger fish