Question 4 The image below shows a cell from the nervous system. The cell forms part of a reflex
arc.
P
An impulse moves along the neurone from Q to P.
What structures would be found at P and Q?
P
Q
А
receptor
relay neurone
B
relay neurone
receptor
с
motor neurone
relay neurone
D
gland
relay neurone
[1 mark]

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the answer is c.) there is a warm front in region a and a stationary front in region b.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.