The variation associated with meiosis is the result of select one:

a. crossing over

b. chromosome condensation in prophase i

c. b and c

d. fertilization

e. random chromosome arrangement at metaphase i

The process of breaking down and changing rocks on near earth surface

Nucleic acids do not contain a. phosphates. b. amino acids. c. ribose sugars. d. nitrogenous bases.

How deep is the earths layer and how thick does it measure

What is the genotype of a white-eyed male fruit fly?

Match the following terms and definitions. 1. short-term hormonal influences on animal behavior usually occurring late in life habituation 2.

Which statement best describes the climate of a city? Select one: The average annual temperature of Austin, TX is 68.5°E San Antonio, Texas had a high temperature of 102°F today. Dallas, Texas had 8.6 centimeters of rain today.

A food manufacturer performs a study on their new brand of cereal. In the study, the food manufacturer compares their brand of cereal to two other brands in terms of vitamin and mineral content.

What tree disease was spread to North America by a fungus carried on insects embedded on wood imported from northern Europe?

Give two abiotic factors which will affect the growth on a school playing field

What are the big four macromolecules common to living organisms, what are the subunits of each?