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bija089 [108]
3 years ago
13

Compared to a polygenic trait, a single-gene trait tends to have.

Biology
1 answer:
Zinaida [17]3 years ago
3 0

Answer:

the answer is a fewer phenotypes

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Adenine makes up 22% of the DNA of an organism. Approximately what percentage would be thymine?
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B. Thymine have the same percentage as adenine and Cytosine and guanine have 28%, which combined together you get 100%
4 0
3 years ago
Determine the series of hormonal events that leads to birth. 1. Oxytocin stimulates the placenta to secrete prostaglandins. 2. F
NNADVOKAT [17]

The series of hormonal events that leads to birth:

  • Fetal cortisol stimulates the placenta to secrete estrogen.
  • The high estrogen level stimulates the uterus to form oxytocin receptors.
  • Prostaglandins dilate the cervix, and with oxytocin, increase the strength of uterine contractions.
  • Oxytocin stimulates the placenta to secrete prostaglandins.

<h3>What hormones are involved during parturition?</h3>

The female hormones contains in parturition include:

  • Estrogen: This plays a main role in uterine contractions.
  • Oxytocin: It helps in the uterine contractions during parturition.
  • Relaxin

Thus,  the series of hormonal events that leads to birth is 2,4,3,1.

To learn more about oxytocin receptors click here:

brainly.com/question/13166157

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7 0
2 years ago
PLZ HELP ME
Katyanochek1 [597]

Answer:

tidal power

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Ocean thermal energy conservation

Ocean Thermal Energy Conversion (OTEC) is a marine renewable energy technology that harnesses the solar energy absorbed by the oceans to generate electric power. ... OTEC uses the ocean's warm surface water with a temperature of around 25°C (77°F) to vaporize a working fluid, which has a low-boiling point, such as ammonia.

hydrogen fuel

Hydrogen fuel cells produce electricity by combining hydrogen and oxygen atoms. The hydrogen reacts with oxygen across an electrochemical cell similar to that of a battery to produce electricity, water, and small amounts of heat. Many different types of fuel cells are available for a wide range of applications

fuel cell

Fuel cells work like batteries, but they do not run down or need recharging. They produce electricity and heat as long as fuel is supplied. A fuel cell consists of two electrodes—a negative electrode (or anode) and a positive electrode (or cathode)—sandwiched around an electrolyte.

Energy Efficiency

Energy efficiency simply means using less energy to perform the same task – that is, eliminating energy waste. Energy efficiency brings a variety of benefits: reducing greenhouse gas emissions, reducing demand for energy imports, and lowering our costs on a household and economy-wide level.

Hybrids

a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction.

Bovid Hybrids. Zubron - hybrid of domestic cattle and european bison

cogeneration

Cogeneration—also known as combined heat and power, distributed generation, or recycled energy—is the simultaneous production of two or more forms of energy from a single fuel source. Cogeneration power plants often operate at 50 to 70 percent higher efficiency rates than single-generation facilities

Explanation:

7 0
3 years ago
A 1-month-old infant is being treated with sequential casts for bilateral clubfoot (talipes equinovarus); new casts have just be
NikAS [45]

The nurse will determine that circulation to the feet remains sufficient by applying pressure to the toes. If color rapidly returns that means that circulation is adequate. This should be done with both feet and the responses should be compared for adequacy of circulation and symmetry.

5 0
3 years ago
Within a decade of the introduction of a new insecticide, nearly all of the descendants of the target insects are resistant to t
scoundrel [369]
The most likely explanation for this phenomena is that this is a result of natural selection.

What actually happened?
When the insecticide was introduced, it killed all of the organisms that were vulnerable to it. However, there was a portion of the population that was immune. Since the immune individuals were the only ones that have survived and left offspring, after some generations in the population of this organism there were only their descendants that have the resistance to the insecticide.
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3 years ago
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