The cell membrane regulates which materials are allowed to enter and exit a cell by allowing some materials into the cell, but not everything, making it

a. fully permeable
b. semi permeable
c. not permeable

Some plants rely on the wind to reproduce an example is it’s important for plants to use the forces of nature to reproduce because 1. 1a white tuft of dandelion seeds 2a spiked burrs surrounding seeds 3a hard shell on a walnut? 2. 1b require pollination to reproduce 2b reproduce only asexually 3b cannot move about freely?

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

Which organelle breaks down sugar molecules that supply energy to the cell ?