Which is a form of active transport?

Proteins open up channels in the cell membrane.

Proteins push molecules through the cell membrane.

Erica notices her bedroom windows have water droplets on them even though it didn't rain. What is the likely cause?

What can we do if the earth dying?

Which of the following perspectives emphasizes how cultural forces constantly mold human biology? a. biocultural perspective b. holistic perspective c. psychological d. anthropological perspective e. cultural genetics perspective f.

How do the population in an ecosystem depend on each other

You run a large farm that is considering using sludge from wastewater treatment plants as fertilizer. You have been told that the sludge can increase the growth rate of your crops, and you know that using the sludge will prevent it from making its

Even though Lebron is a great basketball player, he only won 1 championship ring. Not winning is making him depressed and therefore makes him want to eat a lot of lipids.

When pushing a child on a swing, you must give them a push periodically to keep them moving. This seems to go against the law of inertia and the conservation of energy. Why does the child need a push periodically to keep moving.

Cholesterol is repelled by water and can be found between the layers of the phospholipids in the plasma membrane. What can be concluded from this information? Question 14 options: A high cholesterol diet should be avoided. Cholesterol is nonpolar.

Which is produced immediately after a plant sperm cell fertilizes an egg cell? a. a zygote b. plant nutrients c. sweet nectar d. a spore

In modern classification system, unicellular organisms that contain chloroplasts and a nucleus would be considered; A) annelids B) protists C) archaea D) chordates