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Biology
GCSE

Explain, with the use of a punnet square, heterozygous inheritance.

First, let's make sure we're clear on what heterozygous inheritance means. Hetero means different like heterosexuals are attracted to a different gender than themselves, ...

KM
Answered by Kristina M. Biology tutor
2812 Views

How does sweat cool the body down? (2 marks)

  • Water in the sweat evaporates due to the body temperature of the organism - This takes heat with it
JM
Answered by Jigi M. Biology tutor
8439 Views

In terms of ecological pyramids, how can pyramids of numbers sometimes be a different shape from pyramids of biomass, even for the same food chain?

Ecological pyramids are a way of visualizing a food chain, either with the mass of organisms or the total number of the population of organims at each stage...

RN
Answered by Robynne N. Biology tutor
16422 Views

Why are active transport and diffusion different?

Active transport is the movement of molecules, usually against the concentration gradient (going from low concentration into a higher concentration), and it requires energy. Diffusion is the movement of m...

VC
Answered by Victoria C. Biology tutor
2386 Views

What is eutrophication? Explain how this process can cause harm to the environment, particularly when farmers apply fertiliser to their land.

Eutrophication describes a process wherein a substance containing excessive levels of nutrients, in this case fertiliser, is applied to land and leaches off into nearby bodies of water (often as a result ...

JC
Answered by James C. Biology tutor
2398 Views

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