Opposing pairs of muscles involved in movement are called a. tendons and ligaments. b. flexors and extensors. c. smooth and striated muscles. d. skeletal and cardiac muscles.

Is the study of the interactions among living things, and between living things and their enviornment

Which protist exhibits both animal like and plant like characteristics

How does the chance of a coin landing on each side compare to the chance that a gamete cell will receive a particular gene at meiosis?

Which structure is responsible for transporting semen outside of the body? a. scrotum b. urethra c. sperm duct d. fallopian tube

ccording to the proposed three-domain system, Select one: a. archaea and eukarya are more closely related than either is to the bacteria. b. archaea and bacteria are more closely related than either is to the eukarya. c.

Which function of the nephron includes the movement of fluid from the blood into bowman's capsule?

Which one of the following is true for a theory? A) Explanation supported by experiments B) Widely accepted as true C) Supported by repeatable results D) All of the choices

Which of the following is the largest contributor to the salt ions in the ocean? sodium chloride sulfates calcium

Your body moves food thourgh the digestive tract by using a. smooth muscle b. cardiac muscle c. extensor muscle d. Flexor muscle

A group of organs that work together to perform a major function is called a (n)