When the muscle cell contracts

a. The Z-lines become closer together

b. The muscle shortens

c. The Z-lines become farther apart

d. a and b

c. a, b and c

Allowing selected molecules move in and out of the cell as a function of what?

True or False? Radio telescopes give us information about the birthplace of a star.

Which of these is not a direct function of the skeletal system

Which description of plant life portrays a climax community A) y'all mature trees B) hardy species are gat reproduce rapidly C) grasses and shrubs D) mosses and lichen I will reply to you if correct!

Muscles can only cause bones to move by contracting. this means that a muscle can only move a bone in one direction so muscles work in antagonistic pairs - one muscle contracts while the other relaxes.

Which describes a metaphase plate? sister chromatids lining up in the center of the cell parent cells dividing into two daughter cells spindle fibers pinching the cell membrane in half centromeres joining sister chromatids together?

Which endocrine gland controls all of the other endocrine glands?

Examples of clues that use the senses to indicate hazardous materials include:

Monosaccharides are the simplest form of carbohydrates. They can be combined to form more complex carbohydrates known as polysaccharides, which are typically used for long term energy storage within a cell.

What is the reason that closely linked genes are typically inherited together?