Answer:
Pros: solar energy is renewable, abundant, and eco friendly
cons: expensive and requires space
Explanation:
Answer:
DNA and RNA are both molecules that contain genetic information and are made up of nucleotides.
1) Enzyme activity
2) Cell to cell recognition
3) Cell signalling
4) Transport Materials.
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<span>Earth rotates around its axis and also revolves around the Sun. Rotation is the motion that causes day and night. Earth completes one full rotation every 24 hours. The part of the Earth that faces the Sun has day and the other part has night.</span>
<span>Two main characteristics that distinguish autotrophs from heterotrophs are:
A~ Autotrophs produce their own food by either chemosynthesis or photosynthesis. Heterotrophs do not produce their own food. Heterotrophs obtain their food by consuming autotrophs or heterotrophs.
B~ Autotrophs are at the primary level in a food chain and Heterotrophs are at the secondary level or tertiary level in a food chain.</span>
