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Anika [276]
3 years ago
13

Which molecule(s) exhibit temporary, instantaneous dipoles? I. CH4 II. HBr III. CH3CH2CH3 A) I only B) I and II only C) II and I

II only D) All of them
Biology
1 answer:
ivolga24 [154]3 years ago
5 0

The correct answer is D.) All of them. i just took this test. good luck on the rest of your test!

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Which is considered to be a process by which electrons aregenerally
Serhud [2]

Answer: Catabolism

Explanation:

The addition of electrons to the compound is called as the reduction reaction. On the other hand, the removal of electrons is called as the oxidation.

The catabolism is a process by which electrons are removed from the compound. This is a oxidation reaction.The anabolism is a process by which electrons are added to the compound. This is the reduction reaction.

The anabolism is a process of formation of new complex substance from simple ones. This is a constructive process. The catabolism is a process of formation of simple substance from break down of complex ones. This is a destructive process.

7 0
2 years ago
What two characteristics do fungi lack that forced them to become decomposers
Artist 52 [7]
Fungi are decomposers, they obtain their food from dead organic matters. Fungi obtain their nutrient this way because they can not produce their own food. To produce their own food they need chloroplast in their cells to obtain energy from the sun. And they also need the ability to fix nitrogen which they will incorporate into the food they produce. Because they lack the ability to do this thing, they have to adapt to eating dead materials. <span />
8 0
3 years ago
The punnet square below represents the result of the cross between two tall pea plants.
erma4kov [3.2K]

Genotype is 1:2:1 (1 Homozygous tall, 2 heterozygous tall, 1 homozygous short)

Phenotype ratio is 3:1

The heterozygous Tt and recessive tt could produce short pea plants if they were crossed.

Explanation:

Genotype is the alleles present for a particular gene. In the Punnett square we can see there will be three tall pea plants and one short pea plant but they can be either homozygous or heterozygous.

While phenotype is the exhibited trait by particular allele that is 3 tall pea plants and one small pea plant.

If Tt and tt are crossed 50 per cent chances of short pea plant is there.

7 0
2 years ago
Turgor pressure is the pressure exerted on a plant cell wall by water. When wilted plants are placed in water, they demonstrate
Rus_ich [418]

Answer: When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.

Explanation:

Turgor is a phenomenon in plant cells in which the cell expands due to the pressure exerted by the fluids and also by the cell content on the walls. It is related to osmosis, since the external pressure is usually very high and this internal pressure dilates the cell as much as the elasticity of the membranes allows. <u>Then, the cells swell by absorbing water, tensing the membranes because of the pressure against them.</u> When the fluid exerts outward pressure on the cell wall it is called turgor pressure.  Whereas, the inward pressure exerted on the cell contents by the stretched cell wall is called wall pressure. Generally, both pressures, turgor pressure and wall pressure, are counterbalanced and balanced.

So, this pressure of turgor facilitates the elongation of the cells in the plant, and also, the cells use this phenomenon to regulate the transpiration through the opening and closing of the stomach.

Thereby, the turgor of a living cell is influenced by three primary factors:

  • An adequate supply of water.
  • The formation of osmotically substances.
  • A semi-permeable membrane.

Vacuoles are organelles bounded by a single membrane and present in plant and fungal cells, and where water is stored. Plant cells control their turgor pressure through the movement of water into or out of vacuoles. When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.

3 0
3 years ago
Define gestation period<br>​
suter [353]

Answer:

Gestation period is the fetal development period from the time of conception until birth.

8 0
2 years ago
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