Unit 3 Vocab

Question 0

Mutagen

Answer 0

An agent that causes a genetic mutation

Question 1

Pest

Answer 1

Destructive organism that attacks crops food and livestock

Question 2

Radiation

Answer 2

Emission of energy especially high particles that cause ionization

Question 3

Germ cell

Answer 3

Cell containing half number of chromosomes used for reproduction

Question 4

Klinefelter’s syndrome

Answer 4

Presence of an extra x chromosome in males

Question 5

Turner’s syndrome

Answer 5

Women does not have the usual pair of two x chromosomes

Question 6

Nondisjunction

Answer 6

Failure of a homologous chromosome to separate properly during cell division

Question 7

Trisomy

Answer 7

Condition where an extra copy of a chromosome is present in the. Cell nuclei, causing developmental abnormalities

Question 8

Monosomy

Answer 8

Processing only one copy of a particular chromosome instead of the normal two copies

Question 9

Down syndrome( mongolism)

Answer 9

A disorder from chromosome defect

Question 10

Water soluble

Answer 10

Able to be dissolved in water

Question 11

Fat soluble

Answer 11

Soluble in fats and oils

Question 12

Mitosis

Answer 12

Cell division that results to two new daughter cells

Question 13

Vector

Answer 13

An organism that transmits disease or parasite

Question 14

Biomagnification

Answer 14

The concentration of toxins in an organisms traveled through the food chain

Question 15

Food web

Answer 15

A system of interlocking and interdependent food chains

Question 16

Food chain

Answer 16

A series of organisms each dependent on the next as a source of food

Question 17

Bioaccumulation

Answer 17

The accumulation of substances or other organic compounds in an organism

Question 18

Ppm

Answer 18

Parts per million

Question 19

Ppb

Answer 19

Parts per billion

Question 20

Insecticide

Answer 20

Used for killing insects

Question 21

Herbicide

Answer 21

Toxic to plants and used to destroy unwanted vegetation

Question 22

Fungicide

Answer 22

Chemical that destroys fungus

Question 23

Rodenticide

Answer 23

Poison used to kill rodents

Question 24

Pesticide

Answer 24

Used to destroy insects or other organisms harmful to cultivated plants and organisms

Question 25

Carcinogen

Answer 25

Substance capable of causing cancer

Question 26

Cancer

Answer 26

Disease caused by uncontrolled division of abnormal cells

Question 27

LD50

Answer 27

Standard of measurement of toxicity

Question 28

Invasive species

Answer 28

Implies exotic and a threat to native specie s

Question 29

Exotic species

Answer 29

From another part of the world

Question 30

Introduced species

Answer 30

Implies introduction but not a threat

Question 31

Alien species

Answer 31

Implies introduction to a particular ecosystem

Question 32

Persistent pollutants

Answer 32

Takes a long time to break down

Question 33

Bioremediation

Answer 33

Using living organisms to naturally clean up chemical pollutants

Question 34

Lethal dose

Answer 34

Amount of substance kills 50% of test sample