Which mechanism of genetic variation results from the exchange of gene segments between non-sister chromatids?

Select one of the options below as your answer:

A. Crossing over

B. Independent assortment

C. Random fertilization

Fructose and glucose are examples of

How do living things like insects use surface tension

Which statement best describes the relationship between activation energy and rate of reaction? 1. increasing the activation energy can increase the rate of a reaction. 2. decreasing the activation energy can increase the rate of a reaction. 3.

Arthropods like shrimp molt because A. their hard exoskeleton cannot grow larger. B. their body grows faster than their exoskeleton. C. their exoskeleton is damaged. D. their exoskeleton cracks and lets in water.

The interactions between amino acids are major factors in determining the shape of a protein. These interactions can be affected by the environment surrounding a protein. Which factor would have an effect on the shape of a protein?

34. Which of the following is a heterotrophic organism? a. Pine tree b. Sunflower c. Mosquito d. Seaweed

How is ruminants stomach different from human stomach?

Cross-cultural research on human development indicates that

Use the drop-down menus to identify the scientists who match the descriptions below.

Which best describes a tendon? a flexible tissue that acts as a shock absorber between bones a somewhat elastic tissue that connects bone to either bone or cartilage a flexible and compressible tissue that provides joint stability a tough and