Which characteristic is necessary for natural

selection to occur in a species?

(1) stability

(2) variation

(3) complex cellular organization

(4) a very low mutation rate

Individual differences with a genetic basis lead to in successive generations

In which of the following geological periods would gymnosperms dominate the landscape? Carboniferous Permian Triassic Eocene (present)

Match each biome with the correct description. 1. driest biome 2. largest biome 3. most species diversity 4. least species diversity 5. four seasons 6.

Is the cell membrane of a cell with high mass or the cell membrane of a cell with low mass better able to feed the cytoplasm of the cell key?

Do invertebrates have prokaryotic or eukaryotic cells

Which of these is NOT considered to be an organic substance? A) carbohydrates Eliminate B) lipids C) metals D) proteins

Which one of the following remains intact after extensive decomposition and can be used to assist in personal identification of remains? A. Blood B. Hair C. Bones D. Muscle structure

Which star has the highest absolute brightness?

What is the benefit or advantage of using spectral karyotype

A hypothesis that in non-falsifiable is?