These structures are found in both plant and animal cells. They are mitochondria.
Respiration takes place inside them.
Some cells have more mitochondria than
others. Which would you expect to contain
most mitochondria: muscle cells or skin
cells? Explain why.

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geologic time scale (for gradpoint) =)

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.