Answer:
nitrogen fixation.
Explanation:
Nitrogen fixation is the process by which the combination of molecular nitrogen oxygen or hydrogen is given to give oxides or ammonium that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living beings.
Answer:
a. different alleles of the seed shape gene.
Explanation:
Mendel crossed different varieties of pea plants and he observed how phenotypic traits passed to the progeny. From these experiments, Mendel formulated the 'First Law of Segregation', where he observed that traits may exist in pairs that segregate (separate) at meiosis. During meiosis, i.e., gamete formation, these two factors separate from each other, thereby each gamete has the same probability of receiving either factor. Nowadays, we know that these two factors represent two different gene variants or 'alleles' for a given gene <em>locus</em>. Alleles can be classified into dominant or recessive as in the example above described, where the R factor (round) dominates on the r factor (wrinkled) to determine the seed shape.
Answer;
-Glycogen
The organic molecule called glycogen is formed of branched chains of sugar units.
Explanation;
-Glycogen is a branched polysaccharide of glucose that serves as a form of energy storage in humans, animals, fungi, and bacteria.
-In humans, glycogen is made and stored in liver and muscle cells. Muscle cell glycogen is broken down into glucose, and liver glycogen is broken down into glucose as a circulating energy source glucose for use by the body.
-Glycogen is accumulated in response to insulin and broken down into glucose in response to glucagon. It plays a major role in maintaining the blood-glucose levels, which is vital since some organs in the body such as the brain purely depend on glucose for energy.
Dominant trait<span> definition. In genetics, a </span>trait<span> that will appear in the offspring if one of the parents contributes it. (Compare recessive </span>trait.) Note: In humans, dark hair is a dominant trait; if one parent contributes a gene for dark hair and the other contributes a gene for light hair, the child will have dark hair ...Recessive traits<span> can be carried in a person's genes without appearing in that person. For example, a dark-haired person may have one gene for dark hair, which is a dominant </span>trait<span>, and one gene for light hair, which is </span>recessive<span>.
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C) The increase in greenhouse gas emissions is like placing an extra log on the fire to produce more heat.
Explanation:
The increase in greenhouse gas emission cannot be likened to placing an extra log on the fire to produce more heat.
In essence, the earth is not receiving more heat than usual from the sun. It is not getting more heated.
- Greenhouse gases prevents heat from being lost from the earth surface as long wave radiation.
- This in turn will warm and heat the earth surface.
- The more the greenhouse gases, the more heat that is trapped within the earth.
- The greenhouse gases is the cover that prevents heat from being lost.
- Global warming is what results.
- An increase in heating might not cause warming of the house if the house is open.
- So also, if the earth receives more energy from the sun, the temperature might not increase if no greenhouse cover is available.
Other analogies shows heating(global warming) and cover(greenhouse gases) except of C.
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