TERMINOLOGY GR 7 Flashcards Preview

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Flashcards in TERMINOLOGY GR 7 Deck (16):
1

what is a zoologist

an expert in plants and animals

2

solvent means

liquid that is used to dissolve a substance

3

metabolism means

the collective name for chemicals reactions that take place within cells

4

metabolite

a substance that is necessary for metabolic processes , or a substance that is formed during metabolism

5

hydraulics

the use of liquid, under pressure, to bring an object into motion

6

haemolymph

a fluid found in the body cavities and tissue of invertebrates (similar to blood in vertebrates)

7

trachea

fine and delicate tubes that transport oxygen to the body tissues of certain invertebrates

8

metamorphosis

when an amphibian or insect undergoes a complete transformation (consisting of 2 or more phases) from a juvenile to an adult form

9

parasite

an organism that lives in or on another organism and benefits by obtaining all its nutrients from that organism at the expense of the other organism

10

chemoreceptors

a cell or organ that reacts to chemical stimuli

11

By-product

a secondary product, for example, produced or secreted as part of a process

12

life processes

processes that living organisms need in order to live

13

Taxonomy

the system used to claaify all living organisms found on earth

14

diffusion

the movement of molecules from a high concentration to a low concentration,for example, oxygen molecules that move through a membrane

15

sample

a small part of a substance,plants or animals, or one item of a group or class that is used for a study or tests to represent the whole group or class

16

species

the lowest category in the classification system. members of the same species possess mostly the same characteristics and can reproduce