Looking at natural selection

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How would the MMR vaccine stop you getting measles, mumps and rubella?
A dead/inactive form of the pathogen is injected into the body. These pathogens have antigens on them, which cause your white blood cells to produce antibodies to attack the pathogen.
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What are antibiotics?
Medicines that help to cure bacterial disease by killing infective bacteria inside the body.
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Why is it bad that some people stop taking antibiotics when they feel better, not for their prescribed length of time?
You will leave a few bacteria inside your body, these will reproduce, increasing the chance of some developing resistance.
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How do vaccines make a person immune to future infections?
The vaccine stimulates the white bloods cells to produce antibodies that destroy the pathogens.
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What is a nerve?
A bundle of neurones connected to your brain or spinal cord.
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What is horticulture?
Small scale cultivation of fruits, vegetables, flowers or ornamental plants typically in a garden.
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What adaptations does a camel have? Give two adaptations and how it helps them.
-The fat stored in their humps is not distributed around their body; this reduces insulation, allowing more heat loss. -They are tall and thin, increasing their surface area, increasing heat loss by radiation.
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What does biomass mean?
The mass of living material
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What is a food chain?
A diagram to represent feeding relationships between organisms, showing direction of energy flow.
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Why was Charles Darwin's theory of evolution only gradually accepted?
Any 1 from: -There was insufficient evidence at the time. -The theory challenged the idea that God made all the animals and plants that live on Earth.
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What was John Baptiste Lamarck's theory of evolution?
He argued that an individual's characteristics will change over time due to amount of use
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What is a mutation?
A change in the genetic make up of a person.
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Card 2

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What are antibiotics?

Back

Medicines that help to cure bacterial disease by killing infective bacteria inside the body.

Card 3

Front

Why is it bad that some people stop taking antibiotics when they feel better, not for their prescribed length of time?

Back

Preview of the front of card 3

Card 4

Front

How do vaccines make a person immune to future infections?

Back

Preview of the front of card 4

Card 5

Front

What is a nerve?

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Preview of the front of card 5
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