This scientist focused his study on planetary motion. one of his laws is the planets orbit the sun in elliptical patterns.

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

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

Which promotes sustainability? o a. using more landfills o b. finding new sources of coal o c. increasing consumption o d. encouraging recycling programs