A person who is malnourished:
has an unbalanced diet
has lack of fibre in their body
has a lack of iron in their body
Inherited factors affect metabolic rate but cannot affect cholesterol levels.
The WBCs help defend against pathogens by:
getting inside the pathogens and reproducing rapidly inside them
by lowering the blood temperature rapidly so it is too cold for the pathogens to survive
What is the max temp a petri dish culture in a school should be kept at?
In the synapse between the sensory and the motor neurone, a chemical is released across the synapse, that causes an impulse to be sent along the motor neurone.
Many modern oral contraceptives are . . . . or . . . . .
The plant's response to light
The plant's response to gravity
is controlled by auxin
is controlled by ethylene
The plant's response to lack of glucose
The way that auxin works is that when in contact with the plant cells it causes them to grow more rapidly. It is present in the tips of the plants.
How many different organisms are used for testing new drugs before it is released commercially?
Thalidomide was developed as a morning sickness pill
Lichen are a particularly useful as an indicator of what?
Invertebrate animals can be used as water pollution indicators of . . . . in water
Microorganisms digest fastest in warm, dry, aerobic conditions.
In genetic engineering how are the genes 'cut out'?
using a small electric shot
very small scissors
using a laser