Unit 2 - Key Words 2, Cells the building blocks of Life

Question 1

the collection of body cells that work together to carry out a task

Answer 1

tissue

Question 2

the collection of tissues that work together to perform a function

Answer 2

organ

Question 3

the pollen producing part of the stamen of a flower

Answer 3

anther

Question 4

the stalk of the stamen that supports the anther

Answer 4

filament

Question 5

the male sex cell of a flower

Answer 5

pollen

Question 6

the organ that makes egg cells in female animals and that contains ovules in plants

Answer 6

ovary

Question 7

the female part of a flower through which pollen travels to fertilise the ovule

Answer 7

style

Question 8

the pollen receiving part of a flower

Answer 8

stigma

Question 9

when a male sex cell fuses with a female sex cell

Answer 9

fertilisation

Question 10

having special features that help survival

Answer 10

adapted

Question 11

the structure that grows from a pollen grain in order to fertilise an ovule

Answer 11

pollen tube

Question 12

a widespread disorder in bee populations

Answer 12

colony collapse disorder (CCD)

Question 13

a chemical applied to a crop to destroy pests

Answer 13

pesticide

Question 14

a chemical applied to a crop to destroy insect pests

Answer 14

insecticide

Question 15

the number of organisms living in a particular area or habitat

Answer 15

population

Question 16

the spreading of seeds from a plant to a new area

Answer 16

seed dispersal

Question 17

to begin to grow into a plant from a seed

Answer 17

germinate

Question 18

a variable in an experiment that affects the outcome and is changed

Answer 18

independent variable

Question 19

the same results would be obtained again if the experiment was carried out by different people using different equipment

Answer 19

reliable

Question 20

the ovary of a plant after fertilisation which contains seeds

Answer 20

fruit

Question 21

two organs where human sperm cells are made

Answer 21

testes

Question 22

protective sac surrounding the testes

Answer 22

scrotal sac

Question 23

tube that carries sperm from the testes to the prostate gland

Answer 23

sperm duct

Question 24

liquid produced by the prostrate that mixes with sperm cels to provide them with nutrients

Answer 24

semen

Question 25

tube which allows semen and urine to exit the penis

Answer 25

urethra

Question 26

passes semen to the vagina and removes toxins from the body in the form of urine

Answer 26

penis