Which movement of substances through a cell membrane against a concentration gradient requires energy?

Question 16 options:

osmosis

diffusion

active transport

facilitated diffusion

Which rock has the highest metaphoric grade? A) rock formed at 500*C and 8 Kilobars if pressure B) rock formed at 1,200*C and 20 Kilobars of pressure C) rock formed at 400*C and 12 Kilobars of pressure D) rock formed at 700*C and 10 Kilobars of

In what way do the membranes of a eukaryotic cell vary? in what way do the membranes of a eukaryotic cell vary? certain proteins are unique to each membrane. only certain membranes are constructed from amphipathic molecules.

List two examples of materials that transmit sound, absorb sound, and reflect sound.

All of the cells in this potato plant have the same DNA. Which of these would best describe why the cells differentiate into different parts of the plant, such as the roots, stems, and leaves?

Crop rotation involves? A: Killing Pests B:Planting different crops each year C:Making more work for farmers D:Planting cheaper seeds

What are the four commonly recognized objectives in the interrogation process?

Which bodies of water are classified as freshwater? Choose ALL answers Bay Pond Groundwater Delta

Parasitism is a relationship in which one species benefits and the other does not benefit. True or False?

Example of a Water Conservation Technique That Also Reduces Water Pollution

If one parent has brown eyes and the other has blue whats the percent that the child will have blue eyes