7.4 Ecosystems

Question 1

Food Web

Answer 1

A diagram showing many interconnected food chains

Question 2

Ecosystem

Answer 2

A network of interactions between all living organisms in a habitat, and the non-living factors around them

Question 3

Nectar

Answer 3

A sugary liquid made by flowers, to attract insects for pollination

Question 4

Nocturnal

Answer 4

Active at night

Question 5

Interact

Answer 5

Affect one another

Question 6

Environment

Answer 6

Everything around an organism that affects it

Question 7

Adaptations

Answer 7

Features of an organism that help them to live and reproduce in their habitat

Question 8

Pollinating

Answer 8

Moving pollen from the anther, where it is made, to the stigma

Question 9

Habitat

Answer 9

the place where an organism lives

Question 10

Ecology

Answer 10

The study of organisms in their natural environment

Question 11

Pollen

Answer 11

Tiny grains made by flowers, which contain male gametes

Question 12

Invasive Species

Answer 12

A species that has been introduced to an ecosystem where it does not belong

Question 13

Eradicate

Answer 13

Get rid of; totally destroy

Question 14

Extinct

Answer 14

No longer existing

Question 15

Native Species

Answer 15

Type of organism that are living in their natural habitat

Question 16

Insecticide

Answer 16

A chemical used to kill insects

Question 17

Persistent

Answer 17

A persistent substance stays in the environment for a long time

Question 18

Bio accumulation

Answer 18

Gradual increase of a substance inside an organism’s body; it happens when the substance cannot be broken down inside the body cells

Question 19

Accumulate

Answer 19

Gradually increase in quantity

Question 20

Bio magnification

Answer 20

Increase in concentration of a substance as you go up the food chain

Question 21

Bio degradable

Answer 21

Something that can be broken down naturally by bacteria and fungi

Question 22

Toxic

Answer 22

Poisonous