A scientist was investigating why a particular tree Species grows only only in a particular environment. To determine physical conditions the tree species needs to survive, an appropriate study should include what

Ground squirrels are found in many areas of the United States. They live in underground burrows and are often attacked by birds of prey, coyotes, and boBCats. Which of the following is a limiting factor for a ground squirrel population?

The human body stores chemical energy from digested food some of the chemical energy is converted into mechanical energy when the body moves which team is best supported by this information

Describe the steps of mining, smelting, and refining that are used to extract minerals or elements from ores. When is a mineral considered to be an ore?

Between which two atoms of water are hydrogen bonds are formed? A:between the hydrogen atom of one water molecule and the oxygen atom of another B:between the hydrogen atoms of two water molecules C:between the oxygen atoms of two water molecules

What does biodiversity describe? a) the number of species on Earth b) the number of individual organisms on Earth c) the number of populations on Earth d) the number of communities on Earth

What is the function of the cell membrane? A) to give shape to the cell B) to increase the number of cells C) to control what enters and leaves the cell Eliminate D) to produce macromolecules within the cell

The incidence of Down syndrome, also known as trisomy 21, increases with increasing maternal age. Which of the following errors most likely produces this condition? A. Nondisjunction during meiosis II in either the male and female gameteB.

In a successional community, some kinds of organisms like fungi or beetles are present in every stage of succession.

What's responsible for preventing the gas giants from collapsing into a star?

If both species are harmed, it is a commensalistic interaction. or a. True b. False