1. In the first step in the life cycle of a star, it is called a:

A. red giant

B. main sequence period

C. protostar

D. white dwarf

Life criteria Definition

Discuss the primary differences between how plants and animals deal with any TWO of the following three characteristics of life: cell structure metabolism reproduction

Who stole Joseph's money out of his will? How did you determine this? Include what the thief's potential motive may have been for stealing the money.

List four possible specific interactions and explain how the relationships affect the population densities of the two species.

Genetic drift results in selection for individuals that are better adapted to their environments. True False

What happens to the number of chromosomes per cell during meiosis?

Seismic waves do not travel along the Earth's surface. T or F?

Describe how air masses move.

What part of this cell prevents it from undergoing cytolysis and bursting when placed in a hypotonic environment? A) vacuole B) nucleus C) cell wall D) cell membrane

The protein that represents approximately 80% of the proteins in milk is