Ecosystems

Question 1

What are adaptations

Answer 1

Adaptations are the special features and animal or plant has that allow them to successfully live in their habitat and catch their food and protect themselves from predators

Question 2

What is variation

Answer 2

Variation is the differences between individuals within a species. This can be caused by inherited or environmental factors. Variation can be continuous or discontinuous

Question 3

What is continuous variation

Answer 3

Range e.g. height (cm)

Question 4

What is discontinuous variation

Answer 4

Discrete groups e.g. eye colour

Question 5

What are features of arthropods

Answer 5

. Jointed legs
. Bodies in sections
. Hard outer covering
Flies

Question 6

What are features of molluscs

Answer 6

. Use a large fleshy muscle to move or feed with

Snails

Question 7

What are features of echinoderms

Answer 7

. Bodies in 5 parts
. Spiny outer covering
Starfish

Question 8

What are vertebrates

Answer 8

Mammals birds fish reptiles and amphibians

Question 9

What are some features of cnidarians

Answer 9

. Thin sack-like bodies

. Tentacles

Question 10

What are some features of sponges

Answer 10

.

Question 11

What are some features of annelids

Answer 11

. Round worm like bodies

. Bodies in sections

Question 12

What are some features of flatworms

Answer 12

. Flat worm like bodies

Question 13

What are some features of roundworms

Answer 13

. Thin round worm-like bodies

. No sections

Question 14

What is bioaccumulation

Answer 14

It is the accumulation of substances such as pesticides or other chemicals in an organism. Mercury and DDT are 2 persistent toxic materials

Question 15

What are some inherited variation

Answer 15

Things such as your eye colour your hair colour your skin colour attached and unattached earlobes

Question 16

What are some environmental variations

Answer 16

Things such as your accent your religion your beliefs and your personality