The reproductive systems of many insects can be manipulated by parasitic symbionts, which are passed down to each generation and can skew the sex ratio of their progeny

Indicate whether the statement is true or false.


Answer: TRUE

Biology & Microbiology

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Evidence that sleep has an inherited component is that

A) MZ twins share more sleep characteristics than do DZ twins. B) siblings often go to sleep and wake up at the same time. C) people with insomnia have the same chromosome abnormality. D) DZ twins share more sleep characteristics than do MZ twins.

Biology & Microbiology

Which statement best describes the difference between cell division in plant and animal cells?

a. In animal cells but not plant cells, cytokinesis is accomplished by formation of a cleavage furrow. b. In plant cells but not animal cells, cytokinesis is accomplished by formation of a cleavage furrow. c. In plant cells, centrosomes have an important role in spindle formation, while in animal cells centrosomes do not function during cell division. d. In animal cells, replication of chromosomes occurs during interphase, while in plant cells replication occurs when the nuclear envelope disintegrates. e. Animal cells divide via the cell cycle whereas plant cells divide by binary fission.

Biology & Microbiology

Cold viruses are transmitted by ________.

A. droplet contact B. direct contact C. indirect contact D. All of the choices are correct.

Biology & Microbiology

When Frederick Griffith injected dead bacteria of the virulent S strain into mice, the mice

A. became ill but lived. B. died of blood poisoning. C. remained healthy. D. reproduced quicker.

Biology & Microbiology