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Ksju [112]
3 years ago
9

What is the main function of a vacuole in a cell?

Biology
1 answer:
dsp733 years ago
6 0
Its the storage place in an animal's or a plants cell
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What advantage does giving birth in the harshest part of winter give to the grey seal pups?
Fed [463]
Grey seals breed in habitats where disturbance is kept to a minimal, like rocky shores, ice flows and islands. They feed on cold open waters. When pups are given birth in early winter or late autumn, their skins are white with yellowish tint. They are relatively helpless and rely on their mother's milk for the first few weeks after birth. They deposit a thick layer of blubber that will protect and allow them to adapt to the cold to sustain them when they will hunt for themselves. 
3 0
3 years ago
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Imagine that y-axis of each graph describes the rate of photosynthesis. Which of the graphs represents the
astraxan [27]

Answer:

a. <u>A</u><u> describes the effect of light intensity on photosynthesis.</u>

Explanation:

In plants and other primary producers, photosynthesis is a biological mechanism that is vital to energy production. Energy-containing carbohydrates are derived from light, water and carbon dioxide in the form of glucose molecules.

The waste product oxygen is released as a result. Photosynthesis depends on many variables, including:

  • carbon dioxide concentration,
  • ambient temperature
  • and light intensity

It is a rate-limited reaction. Since photons or particles of light provide the energy required for the reaction, high intensities of light increase the photosynthetic rate. From the graph shown, as <u><em>the intensity increases steadily, so does the rate</em></u>- but at too high of an intensity, it ceases to affect the rate of photosynthesis, which becomes constant or plateaus.

Beyond this point, either the supply of <em>carbon dioxide or the temperature</em> limits the reaction. For instance, at high intensities tissues may even be damaged by high temperatures or heat.

6 0
3 years ago
Which traits are challenges of life for all organisms? Choose all answers that are correct. A. reproducing B. getting sunlight C
RUDIKE [14]
<span><span>a.   </span>Reproducing</span>
f. obtaining energy
d. maintaining structure

Why do these three illustrate the great challenge for every species. <span><span>
1.   </span>Reproduction, is as vital for an entire race to survive. It prolongs their generation onwards and offspring to the next centuries to pass by.</span> <span><span>
2.   </span>Obtaining energy. In both humans and animals, even plants is a challenge because these creatures need to work in order to obtain these need resource from food –preys.</span> <span><span>
3.   </span><span>Maintaining structure. For the living organisms to still exist they need to keep themselves intact. Combating diseases and having nutrition. This is a by-product of having energy.  </span></span>



3 0
3 years ago
Where does the exchange of oxygen (from the air) with carbon dioxide (from the cells) take place?
Katen [24]

<u>Answer:</u>

The Answer is <em><u>Option D. </u></em>

<em>Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.</em>

<em />

8 0
2 years ago
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The role of pigments in the photosynthesis reaction is to
pashok25 [27]

Answer:

Option A, Start the reaction by absorbing light energy

Explanation:

Chlorophyll is a green color pigment in plant that helps in entrapping sunlight. Being green in color, it absorbs the blue and red light and reflects the green light. The molecules of chlorophyll gains energy from sunlight and then jumps to higher energy levels by the process known as photo excitation. These excited molecules get ionized to further initiate the process of photosynthesis.

Hence, option A is correct.

4 0
3 years ago
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