Feedback Mechanisms

Question 1

The collection of glands that products hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things

Answer 1

endocrine system

Question 2

are chemical substances produced by endocrine gland

Answer 2

hormones

Question 3

the tendency for an organism or cell to maintain a constant internal environment within tolerance limits

in simpler terms, its a process of self regulating. Maintaining internal stability while adjusting to external change

Answer 3

homeostasis

Question 4

physiological processes are commonly moderated via two distinct feedback mechanisms:

Answer 4

positive and negative feedback

Question 5

cannot make their own food

Answer 5

heterotrophic

Question 6

its job is to break down large, complex molecules to small, simpler molecules absorbable by cells

Answer 6

digestive system

Question 7

animals can be classified into two

Answer 7

invertebrates and vertebrates

Question 8

animals having gastrovascular cavity include

Answer 8

platyhelminthes and cnidaria

Question 9

they digest their food a tube or cavity with only one opening that serves as both mouth and anus

Answer 9

gastrovascular cavity

Question 10

a pathway which recieves food through mouth on one end and eliminates wastes through the anus on another

Answer 10

alimentary canal

Question 11

what are the four types of digestive systems among vertebrates

Answer 11

monogastric, avian, ruminant, and pseudo-ruminant

Question 12

single stomach chamber

Answer 12

monogastric digestive system

Question 13

process by which animals take in food using their mouth

Answer 13

ingestion

Question 14

process by which food is broken down in mouth mechanically

Answer 14

mastication

Question 15

what does saliva contain

Answer 15

ptyalin

Question 16

what do birds NOT do with their food

Answer 16

masticate

Question 17

this is where food is stored in birds

Answer 17

crop

Question 18

where gastric juices are secreted to digest the food in birds

Answer 18

proventriculus

Question 19

where the food is mechanically ground in birds

Answer 19

gizzard

Question 20

what is a characteristic found in ruminant digestive systems?

Answer 20

polygastric

Question 21

the multiple compartments of a ruminant digestive system

Answer 21

rumen, reticulum, omasum, and abomasum

Question 22

largest chamber of a ruminant digestive system

Answer 22

rumen

Question 23

bacteria found in rumen are

Answer 23

cellulomonas

Question 24

small pouch that traps foreign materials which the ruminant animal may have swallowed

Answer 24

reticulum

Question 25

grinds the food and water from it (ruminant animal)

Answer 25

omasum

Question 26

serves as true stomach that it functions similarly as the stomach of monogastric animals

Answer 26

abomasum

Question 27

a digestive chamber where stomach has three chambers

Answer 27

pseudo-ruminant digestive system

Question 28

three chambers of pseudo ruminant digestive system

Answer 28

reticulum, omasum, and abomasum

Question 29

consists of organs that allow gas exchange

Answer 29

respiratory system

Question 30

respiratory organs

Answer 30

skin, gills, tracheal system, and lungs

Question 31

where does diffusion take place in a worm

Answer 31

thin skin

Question 32

breathing organ of a frog

Answer 32

lungs

Question 33

what do fish and other aquatic organisms use for gas exchange

Answer 33

gills

Question 34

two types of gills:

Answer 34

internal and external

Question 35

insects breathe with a network of tiny tubes called

Answer 35

tracheae

Question 36

pair of organs divided into small chambers filled with capillaries

Answer 36

lungs

Question 37

air enters the body through the

Answer 37

nasal cavity

Question 38

two main bronchi of trachea

Answer 38

left and right bronchus

Question 39

bronchi is subdivided into

Answer 39

bronchioles

Question 40

also called airsacs, main site of gas exchange (in humans)

Answer 40

alveoli

Question 41

under the lungs is a dome shaped muscle called the

Answer 41

diaphragm