Q: What is the term for something that limits the growth or development of an organism, population, or process? Choices: - controlling factor - stumbling block - variable - limiting factor A:
limiting factor

Q: What term is used to describe the cellular structures responsible for protein synthesis? Choices: - chromosomes - chloroplasts - nuclei - ribosomes A:
ribosomes

Q: Q: The common earthworm and leeches are examples of what type of worm? Choices: - castrated - elongated - encapsulated - segmented A:
A: segmented

Question: Q: What happens when when the immune system does not work properly? Choices: - anemia - diabetes - stroke - immunodeficiency A:
Answer: immunodeficiency

*Question*
Q: What process would be impossible without some variation in the inherited traits of organisms within a species? Choices: - environmental selection - darwin's selection - characteristic selection - natural selection A:
**Answer**
natural selection

(Q).
Q: What is the opening in the front of the eye? Choices: - the macula - the iris - the cornea - the pupil A:
(A).
the pupil