< < > > turn in 1 2 3 4 5 6 7 8 9 10send a message exit a gated channel in a cell membrane allows a. osmosis. b. simple diffusion. c. active transport. d. facilitated diffusion.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Explain what is meant by a river’s load, and describe how the load is carried.