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Paul [167]
2 years ago
11

HELPPPPPPPPP PLEASEEEEE

Biology
1 answer:
Hunter-Best [27]2 years ago
3 0
“Gently push the pencil”
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Soils contain small or trace amounts of many minerals, including the chemical elements phosphorus, calcium, potassium, magnesium
serg [7]

Answer:

Magnesium, calcium, phosphorous, sulfur these are essential nutrients for plants. These are required in trace quantity but are very important for plant life. Point A. will be correct answer.

Explanation:

As in B. starch n cellulose are composed of only carbon, oxygen and hydrogen.

As in C. These elements are not required on special occasion but are necessary throughout plant life.

As in D.  C H N O  is the primary component plants need but these secondary nutrients are equally necessary for growth n structure of plant.

<u><em>So answer A. Is the correct option.</em></u>

Calcium plays the most important role in structure formation of plants. Also act as messenger molecule in signaling. Deficiency  of calcium caused wilting , weakened stem and ultimately death of plant.

Magnesium is the key element in chlorophyll molecule. It is necessary for chlorophyll formation.

Sulfur is another very important element in plant life, it is necessary for protein synthesis in plants.

Phosphorous plays an important role in  process of cell devision , photosynthesis and respiration.

Potassium is very crucial in gaseous exchange ,it operates the opening and closing of stomata.

3 0
2 years ago
How are insects classified on the basis of eating
7nadin3 [17]
It's important to prepare the insects properly before eating: Wash the insects. Boil, steam or fry them for at least five minutes. Eat the prepared insects directly after cooking.
4 0
3 years ago
What purpose does a female pine cone serve?
Neporo4naja [7]

The answer is A It protects the seed until it matures.

hope this helps

7 0
3 years ago
Read 2 more answers
What is waters role in light reactions
lisov135 [29]

Answer:

water act as a reactant in light reaction.

Explanation:

Water undergo hydrolysis in presence of sunlight to form proton(H+) and hydroxyl ion(OH-) ion. The OH- ion liberates electron to reaction center of photosystem 1 thereby exciting the later .The excited photosystem then donates that extra electron to the primary electron acceptor and from the primary electron acceptor the electron moves through various electron carriers to generate ATP .

    Basically water act as reducing agent in photosynthesis process.

6 0
3 years ago
The main purpose of wildlife (movement) corridors is to
Kryger [21]
I believe the main purpose of wildlife (movement) corridors is to connect two otherwise isolated populations. Wildlife corridors are links of wildlife habitat that joins tow or more larger areas of similar wildlife habitat. They are very critical for the maintenance of ecological processes such as allowing the movement of animals and the continuation of viable populations. 
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