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kiruha [24]
3 years ago
8

In a particular plant, green seed color is dominant to yellow seed color. If a homozygous

Biology
1 answer:
Sergio039 [100]3 years ago
8 0

Answer: 100% will be heterozygous green.

Explanation:

Since both parents (green and yellow) are homozygous and green is dominant, when they are crossed all the resultant offsprings will have both genes of green and yellow in their genotype but will appear as green( phenotype) because the green colour is dominant and has masked the yellow colour which is recessive.

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Look at the number of organisms and the amount of energy in each level of the pyramid. Why do you think there are more organisms
aleksandrvk [35]

Answer:

If there wasn't a lot of organisms and energy in the productive part of the triangle, then there wouldn't be a lot of third level organisms. The energy piramid would be a lot smaller then what it is here, and maybe if the energy source was low then there might not be such a vast varity of animals in the ecosystem.

You're welcome friend <3

6 0
3 years ago
WILL GET BRAINLIEST!!!
ICE Princess25 [194]

Answer:

<em>1. The characteristic thing about </em><em>adult frog breathing</em><em> is that </em><em>drawing in air by lowering their mouth floor</em><em> (option d).</em>

<em>2. The substance released by the </em><em>lung secretory cells </em><em>is the </em><em>surfactant </em><em>(option c).</em>

<em>3. The main divisions of the </em><em>peripheral nervous system</em><em> are the </em><em>somatic and autonomic systems</em><em>.</em>

Explanation:

<h3>1. Breathing of the adult frog</h3>

The adult frog - while out of the water - uses a nasal breath, propelling air into its throat and oral cavity. The air content in the frog's mouth causes the internal pressure of the cavity to increase, and the floor of the mouth is modified to allow the passage of air to the lungs.

Under water, the frog's breath is cutaneous, that is, through its skin.

Adult frogs do not have gills or respiratory muscles.

<h3 /><h3>2. Pulmonary surfactant </h3>

Pulmonary surfactant is a substance produced and secreted by the pulmonary epithelium, specifically by type II pneumonocytes. The function of the surfactant is to keep the pulmonary alveoli open to allow gas exchange.

The surfactant is a substance of a lipidic and proteic nature that helps reduce the surface tension of the water, which in the socket prevents closure when the air is exhaled.

Another function is to prevent the germs - viruses and bacteria - present in the air from passing from the alveolus to the bloodstream.

<h3 /><h3>3. Divisions of the peripheral nervous system</h3>

The peripheral nervous system is dependent on the central nervous system and is made up of all the nerves that go to each of the tissues and organs of the body. It is divided into somatic and autonomic nervous systems.

  1. <u>Somatic nervous system</u> is composed of nerves that drive nerve impulses to skeletal muscles, being predominantly voluntary. The involuntary response in this system is due to the existence of reflex arcs, whose center of integration is the spinal cord.
  2. <u>Autonomic nervous system</u> is responsible for the innervation of coughs the internal organs, allowing their function under the coordination of the central nervous system. It is an involuntary system and is subdivided into sympathetic and parasympathetic systems.

The integration of both systems, somatic and autonomic, allows a body to perform all its functions, including the function of relationship, alertness and maintenance of organic homeostasis.

Learn more:

Frog breath brainly.com/question/1341903

Pulmonary surfactant brainly.com/question/7303958

Central and peripheral nervous systems brainly.com/question/2156614

5 0
3 years ago
How might our DNA separate Genes?
solmaris [256]

Answer:Un estudio de la Universidad de Barelona demuestra, por primera vez, cómo pueden separarse los genes a lo largo de los linajes evolutivos mediante el mecanismo de la retrotransposición, que es la síntesis de ADN a partir de ARN a través de la transcriptasa inversa.

Explanation:

6 0
3 years ago
why do some scientists theorize that global warming might not be the result of increases in atmospheric carbon dioxide
PtichkaEL [24]

Explanation:

In Earth’s history before the Industrial Revolution, Earth’s climate changed due to natural causes not related to human activity. Most often, global climate has changed because of variations in sunlight. Tiny wobbles in Earth’s orbit altered when and where sunlight falls on Earth’s surface. Variations in the Sun itself have alternately increased and decreased the amount of solar energy reaching Earth. Volcanic eruptions have generated particles that reflect sunlight, brightening the planet and cooling the climate. Volcanic activity has also, in the deep past, increased greenhouse gases over millions of years, contributing to episodes of global warming

8 0
3 years ago
During meiosis diploid cells will divide to produce four haploid cells.<br> T or F?
alekssr [168]
A diploid cell<span> has two of each chromosome, one from each parent. In meiosis you start with a </span>diploid cell<span> that divides twice to </span>produce<span> four </span>haploid cells<span>.  So True.</span>
5 0
3 years ago
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