Herbicides are a broad category of pesticides that are used to get rid of undesirable plants like weeds and grasses that hinder the development and productivity of desired agricultural crops. Both 2,4-D and 2,4,5T are also known as 2,4-Dichlorophenoxyacetic acid and
- Herbicides like 2,4-D and 2,4,5-T are also referred to as auxin-type herbicides or plant growth regulators. Auxins are hormones that affect cell division and elongation in order to control cell growth.
- Auxins are required by plant cells in the proper concentration for growth and development. If auxin levels are too low, plant growth is not promoted at all, and if levels are too high, plant growth is excessively stimulated.
- Most grasses are not killed by 2,4-D and 2,4,5 T, but broadleaf weeds are. It moves to the plant's meristems after being absorbed through the leaves.
- These herbicides affect the tissues' cells, causing them to continually divide and proliferate. The plant finally dies as a result of this unchecked, unsustainable growth, which also causes stem curling and withering of the leaves.
Thus, by promoting cell division, these compounds act as herbicides.
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A food chain is a succession of organisms that eat other organisms and are being eaten by other organisms occupying different levels called the trophic levels. The first trophic level is occupied by the producers which include the plants, the second level includes the herbivores, the third level and subsequent levels represent the carnivores. The plants are called the producers since they can prepare their own food and the other organisms dependening on them are called the consumers.
According to the Ten percent law of energy transfer, only ten percent of the energy is transferred to each trophic level and the remaining is lost during the transfer. If the producers have 3000 calories of energy, the primary consumers obtain 300 calories from them. The secondary producers and tertiary consumers obtain 30 calories and 3 calories only.
From what you provide us usually genetics such as those will have to environmental factors heredity and can be risk factors as well. So the answer you need is All Of The Above.
The answer is <u>5'-3'</u>.
Enzymes that synthesise DNA are called DNA polymerases. They move along DNA strand in 3'-5' direction so that newly synthesised DNA strand is in 5'-3' direction.
Enzymes that synthesise RNA are called RNA polymerases. They move along a template DNA strand in 3'-5' direction so that newly synthesised RNA is in 5'-3' direction.