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grin007 [14]
3 years ago
5

Encoding failure is likely due to

Biology
1 answer:
Ronch [10]3 years ago
4 0
<span>The inability to recall which numbers on a telephone dial are not accompanied by letters</span>
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Explain the need for ventilation systems in a multicellular organism
babunello [35]
Ventilation systems are needed in a <span>multicellular organism to actually obtain oxygen and give out carbon dioxide. Without this ventilation system, it would be very difficult for multicellular organisms to survive. It has been also observed that surface diffusion is not enough for a multicellular organism to breath.</span>
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3 years ago
What percentage of the human genetic code influences visible characteristics associated with race?.
snow_tiger [21]

Answer:

It's less than 0.1 percent

3 0
2 years ago
Describe the source of food for the first 3 levels in the food chain and explain why it takes less land, water, air to produce a
Ronch [10]
This question is incomplete as the specific food chain is not provided. In general, a food chain will have a primary producer at the base of the chain. This is an organism that is able to utilise a form of energy to convert carbon dioxide in the atmosphere to a carbohydrate. For terrestrial food chains, these are typically plants, who by utilising the energy from the sun, are able to convert carbon dioxide to carbohydrates. The subsequent level in the food chain may be a primary consumer, typically herbivores, that consume plant matter. Subsequent links in the chain would typically be secondary consumers, who would be carnivores, omnivores or decomposers. Carnivores would typically be predators and would be at the apex of the food chain. Energy is lost from one link to the subsequent link in the food chain, through basic respiration and inefficient energy transfer from one link to another. This explains why more resources (land, water and air) are required to grow meat rather than plant matter. More of the sun's energy is available within the lower trophic levels in a food chain, before much of it is lost as energy moves up the food chain. An easy example to illustrate this is that much of the livestock raised in the USA is fed grain. If people rather ate the grain than the livestock, they could obtain all their required energy from a smaller amount of grain then would be needed to raise the meat they require. 
5 0
3 years ago
What are the differences between plant and animal cells​
Zina [86]

Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.

Hope this helps :)

7 0
3 years ago
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The neuromuscular junction is a well-studied example of a chemical synapse. Which of the following statements describes a critic
WITCHER [35]

Answer:

A- Acetylcholine is released by axon terminals of the motor neuron.

Explanation:

The general mechanism of muscle contraction can be explained as follows:

a) The action potential which is generated, travels along the motor nerve to its ends on muscle fiber (or motor end plate) at the neuro-muscular junction.

b) The nerve endings then secrete small amounts of neurotransmitter called acetylcholine.

c) The actylecholine binds to the receptors on the membrane of muscle fiber and opens the voltage gated sodium channels.

d) Opening of these channels leads to flow of large quantities of sodium ions into the muscle fiber which ultimately results in initiation of action potential in muscle fiber.  

e) This action potential depolarizes the fiber including the T-tubules, triggering the release of calcium ions from sarcoplasmic reticulum.

f) The calcium ions thus released initiated the process of muscle contraction.

3 0
2 years ago
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