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Rashid [163]
3 years ago
11

Explain why life as we know it would be impossible without photosynthesis.

Biology
2 answers:
Daniel [21]3 years ago
7 0
Well mainly the survival of almost all living organism directly or indirectly depends upon the food made by the plants, with out this it will lead to the death of humans + animals
White raven [17]3 years ago
7 0
Because plants give us oxygen and without photosynthesis, plants will die so we won't have oxygen. That is why life will impossible without photosynthesis.

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What causes evolution?
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bring change in the genetic basis of a population

5 0
2 years ago
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The minimum amount of energy needed to start a chemical reaction is known as:
nadya68 [22]

Answer:

The correct option is B. Activation energy

Explanation:

The activation energy is usually used to designate the minimum energy necessary for a given chemical reaction to occur, that is, the basic requirement for the reaction to proceed.

For a reaction to occur between two molecules, they must collide in the correct orientation and have a minimum amount of energy. As the molecules approach, their electron clouds are rejected. This requires energy (activation energy) and comes from the heat of the system, that, is, from translational, vibrational energy, etc of each molecule. If the energy is sufficient, the repulsion is overcome and the molecules are close enough for a rearrangement of the bonds of the molecules.

The concept of Activation energy was introduced by Arrhenius in 1889. Arrhenius suggested that molecules must prossess a minimum amount of energy to react. That energy comes from the kinetic energy of the clliding molecules. Kinetic energy serves to cause reactions, but if the molecules move very slowly, the molecules will only bounce when they collide with other molecules and the reaction does not happen. In order for the molecules to react, they must have a total kinetic energy that is equal to or greater than a certain minimum value of energy called activation energy.

6 0
3 years ago
WILL GIVE BRAINLIEST AND POINTSSSSS
cupoosta [38]
I think the answer is b not too sure though
8 0
3 years ago
Read 2 more answers
Can someone pls check
Schach [20]

Mitosis only

OPTION A

Mitosis is simply the process of cell division.

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8 0
2 years ago
We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the _________ group
Alina [70]

Answer: Option B) phosphate; hydroxyl; 3'

We identify nucleic acid strand orientation on the basis of important chemical functional groups. These are the phosphate group attached to the 5' carbon atom of the sugar portion of a nucleotide and the hydroxyl group attached to the 3'

carbon atom

Explanation:

For both RNA and DNA, chemical groups such as phosphate (PO3-) attaches to the 5' carbon of the pentose sugar (deoxyribose in DNA, ribose in RNA).

While hydroxyl group (OH) attaches to the 3' carbon atom of the pentose sugar.

Thus, a nucleic acid structure structure reveals a several repeating units of nucleotides where nitrogenous base links to a pentose sugar, who in turns is linked to phosphate group

5 0
3 years ago
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