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Science - Year Seven > Living Things > Flashcards

Flashcards in Living Things Deck (24)
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1

What is the purpose of the brain?

The brain controls all activities in the body

2

What is the purpose of the heart?

The heart pumps blood, which carries oxygen, food and other important substance around the body.

3

What is the purpose of the lungs?

The lungs are needed for us to breathe and obtain oxygen and get rid of carbon dioxide.

4

What is the purpose of kidneys?

The kidneys filter the blood and produce urine.

5

What is the organ system?

The organ system is the biggest set of organs that so one of the bodies main jobs

6

What is the purpose of intestines?

Where food is digested and food and water are absorbed

7

What is the tissue?

The tissue is a group of cells that all do the same job

8

What is the organ?

The organ is a group of tissues that carry out a specific job

9

What is the cell?

The cell is the smallest building block in the whole body

10

What is the body?

The body's the whole organism

11

What is the M in MRS NERG

The things organisms need to be alive

M = Movement - The ability to move all or part of an organism

12

What is the R in MRS NERG

The things organisms need to be alive

R= Reproduce/ Reproduction - The ability to make offspring and continue the speeches

13

What is the S in MRS NERG

The things organisms need to be alive

S= Senses - The ability of an organism to respond to its environment

14

What does the N stand for in MRS NERG

The things that organisms need to be alive

N = Nutrition = In animals the ability to increase in size

15

What does the E stand for in MRS NERG?

The things organisms need to be alive

E = Excretion = The removal of waste materials

16

What does the R in MRS NERG stand for?

The things living organisms need to stay alive

R = Respiration = Using Oxygen to release energy from food

17

What does the G in MRS NERG stand for?

The things living organisms need to be alive

G= Growing - The ability to increase in size

18

What is biodiversity?

The balance of animals and climate and weather across the world

19

What are adaptions?

Adaptions are changes in organisms over time which give them an advantage to survive

20

Give three ways in which a polar bear has adapted to survive in its environment,

Any of the below are acceptable:
-Fur to keep warm
-Nose to smell prey
-Claws to fight and fish
-Jaw to fight and eat

21

What is a producer in a food web?

The producer in a food web is the defenceless vegetation that gets eaten by the primary consumers. These can be things like grass, blackberry plants and nettles. They tend to be able to make more of themselves, meaning they're less likely to run out.

22

What is a primary consumer in a food web?

A primary consumer eats the producer, and gets eaten by the secondary producer. They tend to be vegetarians, and are things such as rabbits, voles, aphids and caterpillars. They cannot survive without a producer.

23

What is a secondary consumer in a food web?

A secondary consumer eats the primary consumer, and they tend to be carnivorous or at least omnivorous. They are things such as foxes, ladybirds and blue tits, and cannot survive without at least one primary consumer to feed off of.

29

What is the purpose of the liver?

The liver removes harmful substances and waste products from the blood