11. In single-gene traits, natural selection can lead to which of the following?

A. Founder effect

B. Disruptive selection

C. Allele frequency change

D. Directional selection

When a plant self-fertilizes generation after generation, and always shows the same phenotype for the characteristic being considered, then the plant is called

Which of the following sentences describes rill erosion?

How does the polar jet stream move from summer to winter?

Because bacteria are living cells, which of the following should all bacteria be expected to have?

Which type of fatty acid has the greater proportion of hydrogen atoms in its structure?

What layer, along with the crust, forms the solid tectonic plates

One effect of acid rain on the ecosystem is A. Animal deaths B. Algal blooms C. Glacial melting D. Holes in the ozone layer

What is the function of the vacuole in plant cells? A. It creates pressure that maintains the shape of the cell. B. It codes messages from the DNA in the protein. C. It creates proteins that form the cell wall. O D.

Which of the following best describes the significance of the sequence individual's DNA?

Which process is responsible for compressing successive strata in the earth? ( a. erosion ( b. faulting ( c. deposition ( d. folding?