Which of the following is a biotic factor of an ecosystem? A. a rock B. air C. grass D. climate

Activation of the sympathetic nervous system question 13 options: a. increases respiration and decreases salivation. b. increases respiration and increases salivation. c. decreases respiration and increases salivation. d.

many times students stuggle whit rthe difference between the terms allele and gene. how would you explain the difference of these two terms in a way that is memorable to you?

Prolonged stress can increase one's vulnerability to illness in part because recurrent autonomic nervous system arousal leads to

What is one major impact of seedless vascular plants?

The seeds of leguminous plants are a source of proteins. Nitrogen - fixing bacteria live in the roots of such plants. Do you think there is a connection between the two facts?

How do we detect the energy of a wavelength?

How energy in gasoline is transformed in a lawn mower

Which observation was a sign that a chemical reaction was occurring in this experiment A) formation of a solid B) change in color C) formation of gas bubbles D) production of light

Cells in multi-cellular organisms A) All look the same B) All have the same function C) Are often quite different from each other D) Are the same size in every part of the organism

Why is it necessary to cool a hot supersaturated solution slowly during a recrystallization?