Basic Anatomy and Physiology (8.8) (Part 2) Flashcards Preview

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Flashcards in Basic Anatomy and Physiology (8.8) (Part 2) Deck (13):
1

maintaining a steady internal state

homeostasis

2

this stops a process already in motion and reverses the effect

negative feedback loop

3

enhances a process that is already in motion

positive feedback loop

4

To monitor all the chemical processes occurring within an organism every second of everyday it is alive, requires a tremendous amount of ________. Therefore this is the number one energy expenditure by animals. The amount of energy needed to stay alive will be related to the amount of food they eat.

energy

5

the sum of all the chemical reactions occurring within an organism

metabolism

6

these organism generate their body heat from within by breaking down their food; therefore they need to eat more to keep their bodies warm; therefore they are more active anytime of the year

endotherm

7

these organisms obtain heat from the surrounding environment therefore they need less food; therefore they are less active most of the time, especially when it is cold out

ectotherm

8

Small animals need _____ E to counter their large loss of body heat

more

9

Large animals need ______ E as they lose less body heat

less

10

Birds need ______ ______ of E to counter the massive amount of body heat lost and needed to keep their giant breast muscles warm

large amounts

11

organisms that monitor temperature and adjust in a changing environment. This requires energy

regulator

12

organisms that match their body temperature to the environmental temperature. Requires no energy. "Cold-blooded" animals

conformer

13

What are the adaptations in animals that aid in thermoregulation?

Insulation (hair, feathers, fat)