characteristics and classifications of living organisms

Question 1

common ancestor

Answer 1

is a species that lived in the past and has given rise to many different types of species

Question 2

species

Answer 2

a group of organisms that can produce fertile offspring

Question 3

binomial system

Answer 3

a system of naming species that internationally is agreed upon

Question 4

genus

Answer 4

a group of species that hare similar features and a common ancestor

Question 5

kingdoms

Answer 5

one of the major groups into which which all organisms are classified

Question 6

organic substances

Answer 6

substances who’s molecules contain carbon

Question 7

chlorophyll

Answer 7

a green pigment that absorbs energy from light

Question 8

cellulose

Answer 8

a carbohydrate that forms long fibres and makes up cell walls of plants

Question 9

fungus

Answer 9

an organism whose cells have cell walls but does not photosynthesise

Question 10

prokaryote

Answer 10

an organism who’s cells do not have a nucleus

Question 11

protoctist

Answer 11

a singled celled organism or one with very similar cells

Question 12

hyphae

Answer 12

microscopic threads made of cell linked in a long line that make up the body of fungus

Question 13

decomposers

Answer 13

organisms that break down organic substances

Question 14

spores

Answer 14

very small groups of cells surrounded by a protective wall used in reproduction

Question 15

multicellular

Answer 15

made of many cells

Question 16

unicellular

Answer 16

made of a single cell

Question 17

metamorphosis

Answer 17

an organism physical body changes as they get older

Question 18

pinna

Answer 18

a flap on the ear on the outside of the body that directs sound to the ear

Question 19

placenta

Answer 19

an organ that connects the growing fetus to its mother

Question 20

mammary

Answer 20

organs found only in mammals that produce milk

Question 21

diaphragm

Answer 21

a muscle that separates the chest from the abdominal cavity in mammals that helps with breathing

Question 22

arthropod

Answer 22

an animal with jointed legs but no back bone

Question 23

exoskeleton

Answer 23

a supportive structure on the outside of the body

Question 24

terrestrial

Answer 24

living on land

Question 25

vestigial

Answer 25

a structure that has evolved to become so small that it is no longer useful

Question 26

dicotyledons

Answer 26

plants with two cotyledons in their seeds

Question 27

monocotyledons

Answer 27

plants with only one cotyledon in their seeds