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stich3 [128]
3 years ago
15

Define parent material in science

Biology
1 answer:
Mama L [17]3 years ago
7 0

Answer:

the disintegrated rock material usually unconsolidated and unchanged or only slightly changed that underlies and generally gives rise to the true soil by the natural process of soil development. — called also source material.

Explanation:

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Many traits (phenotypes), like eye color, are controlled by multiple genes. If eye color were controlled by the number of genes
mel-nik [20]

Answer:

Explanation:

If there are 5 genes, let us assume that they are in the alternative forms with 2 possible gets for each five... So we have

2 possible gametes for each five = 2 to the power of 5 = 32 gametes

Then genotypes = 3 to the power of 5 = 243

The same also for 10 genes

2 possible gametes for each 10 = 2 to the power of 10 = 1024 gametes

Then genotypes = 3 to the power of 10 = 59,049

The same also for 20 genes

2 possible gametes for each 20 = 2 to the power of 20= 1,048,576

Them genotypes = 3 to the power of 20 = 3,486,784,401

6 0
3 years ago
After three years of heavy rain, a field of soybeans shows a decreased yield. They have weaker root systems compared to plants i
Troyanec [42]

Answer:

It can be hypothesized that fungal pathogen is responsible for decreased yield.

Explanation:

As the extensive heavy rain changed the climate of that area the soybean plant was effected by pathogenic fungus grown in the field. As we know that fungi makes spores that can withstand harsh environment. Humid and moist environment is favorable for fungi growth. So when spores find a suitable environment they grow rapidly. In the given example, the fungi was pathogenic that produced toxic compounds and effected the growth of soybean plant by damaging its root system and water supply to plant.

5 0
3 years ago
In addition to the release of energy from food, another product of cellular respiration is carbon dioxide. This carbon dioxide l
kari74 [83]

Answer:

Respiratory system

Explanation:

5 0
3 years ago
In animals the sensory capabilities evolved over hundreds of millions of years. It is therefore not surprising that different se
I am Lyosha [343]

Answer:

Olfactory system

Explanation:

In an olfactory system, odor molecules are perceived by the olfactory receptors. These odor molecules are nothing but the chemicals which are then transduced as chemical signals into the electrical signals and sent to the brain. The brain perceives these electrical signals as smell.  

The odorant particles bind to the specific receptors located at cilia which then signal through the G protein Gαolf which then activate adenylate cyclase. Adenylate cyclase leads to cAMP production which then open a cyclic nucleotide-gated ion channel through which both sodium and calcium ion entern into the cell. Calcium ion then activates chloride channels and thereby causing transduction of electrical signal

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3 years ago
The relationship between the number of organisms in the food chain and the size of the individual organisms within each level of
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<span>The relationship between the number of organisms in the food chain and the size of the individual organisms within each level of the food chain is
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d) inversely proportional
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6 0
3 years ago
Read 2 more answers
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