Crustaceans are well adapted to life on the rocky shore because they have a

In an ecosystem, which is NOT a density- dependent limiting factor? A) predation B) parasitism C) competition D) natural disaster

Two species of garter snakes live in the same geographic area. One lives mainly in water and the other mainly on land; therefore, they rarely encounter each other and do not interbreed. What type of isolation is this?

Crossing over between nonsister chromatids during meiosis is significant in heredity. This process most likely leads to an increase in which of the following? a. The expression of dominant traits b. Number of gametes c.

Which descriptions refer to short-range forecasts? Check all that apply. fairly accurate cover five days or less do not require computers cover more than 10 days impacted by butterfly effect

How do enzymes affect the energy needed for getting a reaction going in the cell?

5 potential causes of Microevolution

Delia is interested in finding ways to cure diseases. Which of the following career fields would best suit Delia's interest? animal biology cytology nuclear biology zoology

The purpose of a mordant in the Gram stain is to: make gram-negative cells visible. prevent the crystal violet from leaving the cells. make the flagella visible. make the bacterial cells larger. remove the simple stain.

Nicolas Steno (1638-1686) recognized that fossilized shark teeth were formed from actual prehistoric shark teeth.

The fruit fly Drosophila melanogaster has four pairs of chromosomes, whereas the housefly Musca domestica has six pairs of chromosomes. How many different combinations of chromosomes are possible in the gametes of the fruit fly?