Amanda (age 39) lives a very hectic life that allows for little sleep. she doesn't eat a healthy diet or exercise. she is worried because her mother developed heart disease at the age of 40. what are the uncontrollable risk factors in amanda's situation? a. environment, stress, lack of sleep b. diet, age, and lack of exercise c. gender, diet, and the environment d. heredity, age, and gender .com

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

What is a group of organisms that are closely related and share similar characteristics