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fgiga [73]
3 years ago
14

Will mark brainliest and use your own word

Biology
2 answers:
Ivahew [28]3 years ago
7 0

Answer;

im confuzzled but it might obviously be B. if im correct.

Explanation:

RideAnS [48]3 years ago
7 0

Answer:

A. Chimpanzees and humans have a common ancestor

Explanation:

technically humans evolved from chimpanzees so the first chimpanzee is technically the first human

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D. Anther

It is crucial in the reproduction of flowering plants, as it produces the male gametophyte, known as pollen.

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nutrient

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During fertilization, a __________ and __________ combine to form a __________.
sineoko [7]
During fertilization, a _sperm_ and _egg_ combine to form a _zygote_.

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3 years ago
A postsynaptic neuron has three presynaptic inputs - from neurons X, Y, and Z. Stimulation of neuron X causes the postsynaptic n
xenn [34]

Answer:

Y is probably excitatory and Z is probably inhibitory

Explanation:

  • Two neurons communicate with each other generally by releasing neurotransmitters.
  • The neuron which releases the neurotransmitter is termed as presynaptic neuron and the neuron to which the neurotransmitter binds to exert its effects is called as postsynaptic neuron.
  • Based on the nature of the neurotransmitter released, the presynaptic neurons can either be inhibitory or excitatory in nature.
  • The change in the membrane potential of the postsynaptic neurons depends on the total sum of inputs coming from different pre synaptic neurons at a given time.
  • From the given situation, the stimulation by X alone is causing deploarization of 0.5 mV which shows that it is causing excitation, and since depolarization is increasing when X and Y are stimulaneously stimulated Y is also excitatory in nature. However the depolarisation is not occurring when X and Z are stimualted together and hence, Z is probably inhibitory in nature.
3 0
3 years ago
Please help me !!! I'm having a hard time.
alina1380 [7]

The amount of dissolved oxygen decreases with increase in temperature.

However, in chart 1 it was observed that the amount of dissolved oxygen increases with increase in temperature.

<h3>What is the relationship between dissolved oxygen and temperature?</h3>

Dissolved oxygen is the amount of oxygen dissolved in water at a given temperature. Dissolved oxygen is important to aquatic animals for respiration.

The relationship between dissolved oxygen and temperature is that dissolved oxygen increases with decrease in temperature and vice versa.

Based on chart dissolved oxygen initially had a linear relationship with temperature. This, however is contrary to the expected results.

Learn more about dissolved oxygen at: brainly.com/question/26073928

7 0
2 years ago
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