What are the structures that increase the surface area of the small intestine

What will be an ideal response?


villi, microvilli, and plicae circularis

Biology & Microbiology

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When is cell-to-cell communication particularly important in regulating gene expression?

A. During meiosis B. During mitosis C. During replication D. During embryonic development

Biology & Microbiology

Monogamy, a relatively rare system outside of birds, evolves when:

a. it is dangerous to compete for multiple mates. b. males compete for females who have higher parental investment. c. both males and females have low parental investment. d. both males and females have high and equal parental investment. e. females compete for males who have higher parental investment.

Biology & Microbiology

In a cell that has a diploid number of 8 chromosomes, how many chromatids will be present at the beginning of mitosis?

A) 8 B) 16 C) 32 D) 4 E) 2

Biology & Microbiology

How are the nervous system and the endocrine system alike?

A. They both regulate the activities of other systems. B. They both are largely composed of glands. C. They both have an very prolonged response to stimuli. D. They both utilize axons and synapses. E. They both respond very rapidly to stimuli.

Biology & Microbiology