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o-na [289]
3 years ago
8

Why do plants need sunlight?

Biology
1 answer:
Vladimir [108]3 years ago
4 0
In short, plants require sunlight because that is how they make their food.

Longer version: Plants use photosynthesis to produce glucose for food with O₂ as a by-product. Without sunlight, photosynthesis cannot happen, and so would have no food to use.
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Which of the following are biotic factors and which are abiotic factors?. A.Rain and grass are biotic; wind and humidity are abi
anyanavicka [17]

Answer;

-Algae and fungi are biotic; temperature and rainfall are abiotic.

Explanation;

-Abiotic factors are the non-living parts of an environment. These include things such as sunlight, temperature, wind, water, soil and naturally occurring events such as storms, fires and volcanic eruptions.

-Biotic factors are the living parts of an environment, such as plants, animals and micro-organisms. These factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms.

6 0
3 years ago
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4 The graph below shows how the activity of an enzyme changes
choli [55]

Answer:

A

Explanation:

A. The optimum pH of the enzyme is 6.6.  - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)

B. The optimum pH of the enzyme is 5.8.  - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80

C. The enzyme's activity is greater around pH 8.0 than around  pH 5.0  - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.

D . The enzyme's activity continually increases as pH increases  from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.

6 0
3 years ago
Which foods would be most helpful for someone who is suffering from weak teeth and bones
hjlf

Your body needs two key nutrients: calcium and vitamin D. Calcium is the mineral that strengthens bones and teeth, and vitamin D helps the body absorb calcium while improving bone growth. So stuff like <em>yogurt, milk, salmon, tuna, and spinach.</em>

4 0
4 years ago
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Where is the pyramidal decussation?
Snowcat [4.5K]

Answer:

Pyramidal decussation is at the junction of medulla and spinal cord.

Explanation:

Pyramidal decussation may be defined as the the fibers that cross the corticospinal tract from one side to the junction and the other side to the central nervous system.

Pyramidal decussation is the point at the junction between spinal cord and medulla. The motor fibers crosses the midline from the medullary pyramids.

4 0
3 years ago
Where does the process of transcription occur?
Anit [1.1K]

Answer:

D

Explanation:

5 0
3 years ago
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