Which of the following are examples of

geographic barriers? Choose two.

Body of water

small stream

Mountain

dirt road

ouTube

How do hydrophilic and hydrophobic relate to the structure of a cell membrane?

What structure is responsible for gas exchange in most spiders?

What is a single population is made of? a. multiple organisms. b. multiple species. c. multiple communities. d. multiple biomes.

Which of the following has the greatest population density? A. 125,000 organisms in 2.5mi^2 B. 13,000 organisms in 1.0mi^2 C. 150,000 organisms in 4.0mi^2 D. 100,000 Organisms in 0.5mi^2

True or false preferring to drink alone is not a factor that contributes to drug addiction

Whenever biological organic compounds, such as proteins and carbohydrates, are broken down or synthesized ...

What is the monomer of a carbohydrate

Jill has found evidence that suggests that individual volcanoes produce igneous rocks with a certain chemical signature. She predicts that scientists could use an igneous rock's chemical signature to determine where the rock came from.

Which best describes dynamic equilibrium? There is a difference in concentration on either side of the cell membrane. There is an uneven distribution of particles inside and outside the cell.

Proposed a theory to explain the origin of life on earth