What are three ways that substances can be transported across a membrane in animal cell?​

Diffusion

Osmosis

Filtration

Explanation:

A membrane can allow molecules to be passively transported through it in three ways: diffusion, osmosis, and filtration. Diffusion: Sometimes organisms need to move molecules from an area where they are highly concentrated to an area where the molecules are less concentrated.

c. would be the answer : )

explanation:

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.