Which of the following allows groups of skeletal muscle cells to perform coordinated contractions?

Which could be classified as part of an ecosystem but not part of a community trees, grasses, bacteria, minerals

How is the loss of biodiversity different today? A Conditions are changing on Earth faster than species can develop new traits to cope. B There are several different species contributing to the loss of biodiversity today.

How does deforestation affect the water cycle A. it can alter precipitation patterns B. it reduces the amount of carbon dioxide in the atmosphere C. it increases the amount of transportation. D. it leads to an increase in eutrophication.

Besides being very painful, a blockage in a ureter due to kidney stones or external pressure is serious because it leads to an increase in capsular hydrostatic pressure. what is the consequence of this increase in pressure?

What is 123,000,000,000,000,000,000,000in light years

Phylogeny refers to a. the evolutionary history of a group of related organisms. b. a group of organisms that includes an ancestor and all of its descendants. c. Darwin's method to classify organisms. d. all of the above

Vertebrae protect the cerebellum. true or false

Which of these is NOT a way that large molecules, like glucose, can enter a cell? A) diffusion through the cell membrane. B) facilitated diffusion through protein channels in the cell membrane.

The specialized functions of different membranes are largely determined by the blank they contain. Membrane lipids are blank molecules, composed of a hydrophilic portion and a hydrophobic portion.

Which of the following aren't eukaryotes? plants bacteria animals fungi