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bio lec 4 qz
| Question | Answer |
|---|---|
| Which of the following statements correctly describes the role of valves in the human heart? | The valves prevent the backflow in the heart |
| Which of the following animals is a K-select species? | Koala bears |
| Which type of muscle tissue is responsible for voluntary movements in the human body? | Skeletal muscle |
| The nervous system sends signals throughout the body using alternating electrical and chemical mechanisms. What are the chemical messengers in the nervous system called? | Neurotransmitters |
| This is the tendency of an organism to maintain constant internal body conditions | Homeostasis |
| Path of the blood through the heart: _________; Right ventricle; Left atrium; ________ | Right atrium; Left ventricle |
| Which of the following factors is the most influential in the movement of oxygen in the human body? | The partial pressure of oxygen |
| This coordinated series of involuntary muscle contractions allows for the movement of food through the gastrointestinal tract, regardless of body position | Peristalsis |
| A virus that infects bacteria is commonly known as a ___________ | Bacteriophage |
| An "S" graph showing population growth is what type of graph? | Logistic |
| Termites rely on protozoans in their gut to digest cellulose from wood. Protozoans rely on termites for a safe place to live and for food. This relationship is called ________ | Mutualism |
| If a population of 1000 antelope has 250 deaths/year and 500 births/year, what is its intrinsic rate of increase (r)? | .25 |
| In ecological studies, a place where an organism lives is called its _________ | Habitat |
| Which of the following functions of antibodies would be most effective if you were bitten by a venomous snake and its toxins was injected into your body? | Neutralization |
| The role of the kidneys is to filter blood. True or False? | True |
| Which of the following statements is NOT an example of innate immunity? | Antigen stimulates the activation of B cells |
| Which of the following is NOT a response in the human body when temperature gets too low? | Vasodilation |
| This functional unit of skeletal muscle is composed of protein filaments that work together to cause muscle contractions | Sarcomere |
| Homeostasis in the body is primarily maintained by? | Negative feedback mechanisms |
| Select the structure that carries urine from the body | Urethra |
| Which of the following best describes the role of B cells in the immune system? | The production of antibodies |
| Choose the limiting factor in population density and distribution that is a biotic factor | Food availability |
Created by:
scarangelo
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