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serg [7]
2 years ago
5

Urine is made of _________​

Biology
1 answer:
scZoUnD [109]2 years ago
6 0

Answer:

Answer is A

Explanation:

Urea consists of carbon, nitrogen and oxygen. You can find it in urine, sweat, blood and milk in mammals. In its most concentrated form, it is urine. Urea is a crystalline compound, and the nitrogen content is always at least 46 percent when dry.

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Which of the following ways are leftover neurotransmitters cleaned up if they
Alisiya [41]

Answer:

The correct answer is -

the neurotransmitters are broken down in the synapse

The presynaptic neuron absorbs the neurotransmitters

Explanation:

The termination of the neurotransmitters is essential as if they can cause harm by continuing the stimulus effect on the muscles or cells. To clean up these neurotransmitters there are two ways- Degradation of neurotransmitters with the help of enzymes in the synapses or synaptic cleft and the presynaptic neurons absorbs or suck up neurotransmitters. The neuron (presynaptic neuron) is that releases the neurotransmitter like dopamine, serotonin, is the one that re-uptake it.

This reuptake is done by transporter proteins that are are symporters in nature as these proteins pump neurotransmitters as well as ions back into the neuron.

5 0
3 years ago
The heart is made up of the left and right ________________ and the left and right _______________________________.
tatuchka [14]
A. Atria and ventricles
8 0
3 years ago
Of these choices, neuronal communication between the brain and the muscles of the leg is best conceptualized as _____.
Molodets [167]
<span>Of these choices, neuronal communication between the brain and the muscles of the leg is best conceptualized as electrical and chemical signaling.
The brain sends signals of the electrical and chemical type to reach the leg and move its muscles. Once these signals get to the muscles of the leg, they are moved into motion as a result of the brain "ordering" the leg to move so that a person could get up or get to another place.
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5 0
2 years ago
During which stage of the cell cycle is DNA copied
Zolol [24]

It was during the Mitosis stage or the S-phase (Synthesis) of the Interphase. The cells spend most of their life in Interphase before Mitosis will occur.

6 0
2 years ago
Which of the following would be true of a plant heterozygous for a single gene controlling flower color? (Assume complete domina
Rasek [7]

Answer:

C: If crossed with another heterozygous plant, the majority of progeny will have the dominant flower color.

Explanation:

Assuming the gene is represented an allele A, purple colour can be AA or Aa while white colour will be aa.

If a heterozygous plant Aa is crossed with another heterozygous Aa, the genotype of the progeny will be AA, Aa, Aa and aa.

Since allele A is dominant over a, it thus means that the phenotype of the progeny will be 3 purple and 1 white flowered plant.

<em>Hence, the majority of the progeny will have the dominant (75%) flower colour.</em>

The correct option is C.

6 0
3 years ago
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