Both plant and animal cells have___.

A mitochondria and chloroplasts

B chloroplasts and a nucleus

C a nucleolus and mitochondria

D a nucleus and a cell wall

Thermohaline circulation is movement of seawater due to differences in what two properties? 1) density and temperature 2) salinity and temperature 3) temperature and depth 4) salinity and density

A spore stalk grows from the gametophyte of a moss. What is the next step in its life cycle? A) Gametophyte B) Meiosis C) Gametes D) Mitosis

Q4.4. in a certain species of flowering plant, the allele for white petal color is dominant and the allele for red petal color is recessive.

What's the solution

What is the pH of common solutions?

Women have an easier time quitting smoking than men. a. True b. False

How can burning fossil fuels lead to a lower ocean pH?

Order the following components of matter from smallest to largest: compounds, electrons, elements, protons, and neutrons.

Explain why populations tend not to continue to increase exponentially in an environment

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.