Have a thick fur and fat under skin to keep warm, have small surface area to volume ratio to conserve energy. Have small Ears to reduce heat loss.

Q. What does FSH do and where is it produced?

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It's produced in the pitituary gland and stimulates the ovaries to produce Oestrogen and matures eggs

Reply 284

fauziaa

11

Why do antibiotics not work on viruses?

Reply 285

z_o_e

11

Original post by fauziaa

Why do antibiotics not work on viruses?

Viruses reproduce inside cells antibiotics could damage the cell.

Can you please explain Independent dependant and control variable

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Reply 286

xxxtentacion..

16

Original post by fauziaa

Why do antibiotics not work on viruses?

viruses damage cells and multiply inside cells so its hard to get rid of the virus without actually damaging the cell itself

Reply 287

username2464047

6

Original post by fauziaa

Why do antibiotics not work on viruses?

Viruses reproduce inside body cells. Therefore, any attempt at treatment - such as antibiotics - would damage the body cells, and would struggle to reach the pathogens.

Q: Describe the process of embryo transplanting. (Not ACC) :smile:

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Reply 288

jazz_xox_

13

Original post by hafsa473

The bacterium can now reproduce rapidly and because people with diabetes can't produce insulin, the bacteria produces it instead, giving the person insulin. This controls your blood sugar levels.

Hope this helped :smile:

thank you! so the bacterium are inside the body?

Reply 289

fauziaa

11

Original post by hettyshaw

Viruses reproduce inside body cells. Therefore, any attempt at treatment - such as antibiotics - would damage the body cells, and would struggle to reach the pathogens.

Q: Describe the process of embryo transplanting. (Not ACC) :smile:

Posted from TSR Mobile

sperm and egg removed from the prize animal (bull or cow for example), artificially fertilised to cause many embryo's to form, then inserted into a surrogate mother, all of the offspring are genetically identical to one another and therefore you have the ideal offspring.

pros and cons for cloning (plants and animals).

Reply 290

MissChameleon

13

Original post by hettyshaw

Viruses reproduce inside body cells. Therefore, any attempt at treatment - such as antibiotics - would damage the body cells, and would struggle to reach the pathogens.

Q: Describe the process of embryo transplanting. (Not ACC) :smile:

Posted from TSR Mobile

A developing embryo is taken from the womb of a pregnant animal. The embryonic cell are divided then the identical embryos are transplanted into surrogate mothers.

Q. Drugs change chemical processes in a person’s body.Why is it difficult for a person to stop taking certain drugs?

Reply 291

fauziaa

11

Original post by MissChameleon

A developing embryo is taken from the womb of a pregnant animal. The embryonic cell are divided then the identical embryos are transplanted into surrogate mothers.

Q. Drugs change chemical processes in a person’s body.Why is it difficult for a person to stop taking certain drugs?

They change chemical reactions in the body and therefore the person becomes dependent on the drug and suffers from withdrawal symptoms. This is also due to drugs such as nicotine being highly addictive.

Pros and cons to IVF and Contraceptive pill?

Reply 292

MissChameleon

13

Original post by fauziaa

They change chemical reactions in the body and therefore the person becomes dependent on the drug and suffers from withdrawal symptoms. This is also due to drugs such as nicotine being highly addictive.

Pros and cons to IVF and Contraceptive pill?

IVF
Pros:
- Infertile women have the chance to have a child

Cons:
- Isn't a 100% effective
- May result in multiple birth which could harm mother or foetus
- higher risk of cancer due to the hormonal treatment

The Pill
Pros:
- prevent pregnancy
- 99% effective
- reduces the risk of some kinds of cancer

Cons:
- doesn't protect against STIs
- isn't 100% effective
- side effects

Q. Bacteria may become resistant to antibiotics.How can doctors reduce the number of bacteria that become resistant to antibiotics?

Reply 293

Haashym

5

Original post by MissChameleon

IVF
Pros:
- Infertile women have the chance to have a child

Cons:
- Isn't a 100% effective
- May result in multiple birth which could harm mother or foetus
- higher risk of cancer due to the hormonal treatment

The Pill
Pros:
- prevent pregnancy
- 99% effective
- reduces the risk of some kinds of cancer

Cons:
- doesn't protect against STIs
- isn't 100% effective
- side effects

Q. Bacteria may become resistant to antibiotics.How can doctors reduce the number of bacteria that become resistant to antibiotics?

Don't prescribe it when not necessessary - mild infections
Reduce the use of the current antibiotics

Reply 294

JakeAntonyBrown

6

Original post by MollieT3

The rate at which your body uses energy

AQA Like: The rate of chemical reactions in your body.

Reply 295

bradyahern360

Original post by MollieT3

The rate at which your body uses energy

Its the rate at which chemical reactions happen in the body/

Reply 296

Ads.m

10

Original post by bradyahern360

Its the rate at which chemical reactions happen in the body/

Where is cholesterol made, types of cholesterol and what is cholesterol used for? (4 Marks)

Reply 297

Jobayori

2

Original post by MollieT3

A recessive allele is only present if the person has two whereas a dominant allele is present if they only have one I think?

I think you may have to be more specific:
A recessive allele's characteristics (phenotype) are only shown if the person has two alleles whereas a dominant allele's characteristics are shown if they only have one allele

Reply 298

Saihan

1

Original post by Ads.m

Where is cholesterol made, types of cholesterol and what is cholesterol used for? (4 Marks)

Cholesterol is made in the liver. There are two types : HDL and LDL. HDL is good for the body whereas too much LDL is bad for the body. Cholesterol is needed to produce bile and build up the walls of the blood vessels.