What is the role of the effector in a feedback loop?

What is an electron? A. Where protons and neutrons are found B. The smallest part of an atom C. A part of an atom that is positively charged D. The heaviest particle in an atom.

How is the relationship between energy different between mechanical waves and electromagnetic waves?

What is the most important factor that holds a gene pool of a species together and prevents speciation? hints?

Which factor can cause constriction in blood flow through the cardiovascular system? A.) Smoking B.) excercise C.) video games D.) vegetarian diet

Which is the correct order for the levels of organization from simplest to complex? O Atom, cell, organ, organelle, tissue, organ system, organism O Atom, molecule, organelle, cell tissue, organ, organ system, organism O Organism, orgasystem,

Charles Darwin observed an orchid flower with very long, thin tubes that prevent many species from feeding on flower nectar and pollinating the flower.

What must you know to solve Kepler's third law, the law of periods?

What shows the movement of energy (in the form of food) from one organism to another?

What are two enviromental conditions that can cause a seed to become dormant?

Future directions and careers in ethnobiology