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stealth61 [152]
3 years ago
10

Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a

Biology
1 answer:
mel-nik [20]3 years ago
8 0
Because two organisms one with the trait and one without could make an organism which would cause variation
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Snakes shed their outermost layer of skin regularly. Which characteristic of life is this action an example of?
saw5 [17]
Growth is the right answer, because ecdysis or moulting term is associated with shedding of exoskeleton . Snakes do so to increase in size and for development

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3 years ago
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A substance synthesized at the cell body must undergo ______ transport to reach the synaptic knobs.
cricket20 [7]

The cell body must undergo Anterograde transport to reach the synaptic knobs.

The synaptic feature is to transmit nerve impulses between two nerve cell neurons or among a neuron and muscle cellular. Synapses connect one neuron to every other and are thus liable for the transmission of messages from the nerves to the mind and vice versa.

Synapses are a part of the circuit that connects sensory organs, like those who come across aches or touch, within the peripheral frightened gadget to the mind. Synapses connect neurons inside the mind to neurons inside the rest of the frame and from those neurons to the muscle tissues.

Synaptic transmission is the method at synapses by way of which a chemical sign is launched from one neuron and diffuses to other neurons or goal cells where it generates a sign which excites, inhibits, or modulates mobile hobby.

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5 0
1 year ago
A moraine is associated with a slow-moving sheet of ice called a
GrogVix [38]
It is called a Glacier
4 0
3 years ago
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What inference can correctly be drawn from the diagram shown below? (2 points) Image depicts four very similar birds with slight
AURORKA [14]
All of these birds share a common ancestor
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8 0
3 years ago
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Which of the following is a correct statement about sugar movemetn in phloem?
Simora [160]

Answer:

a. movement can occur both upward and downward in the plant

Explanation:

The phloem loading causes the accumulation of sugars in the sieved elements generating a negative solute potential (quedas), with a drop in water potential (ψw), so water enters the sieved elements increasing the turgor pressure (ψp). With the discharge of phloem in the drain occurs lower concentration of sugars in the screened elements, increases the solute potential, becoming positive, thus the phloem water potential increases and thus the water leaves the conducting vessel. In the specific case of sugar movement in the phloem, it can be stated that this movement can occur both up and down in the plant.

7 0
3 years ago
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