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2 years ago

1 p 1. Any change in the sequence of DNA is... O transgenic shift O Single Genotype O Monohybrid Trait O Mutation bOther:

Biology

1 answer:

agasfer [191]2 years ago

3 0

Answer:

A gene is a stretch of DNA that helps to control the development and function of all organs and working systems in the body.

Genes are passed from parent to offspring; the combination of these genes affects all aspects of the human body, from eye and hair color to how well the liver can process toxins.

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1: how did the Miller urey experiment impact the way scientists think about the origin of life. 2: Use what you know about the M

crimeas [40]

Miller Urey experiment mimics the environment we had for earth billion of years ago. They put in inorganic molecules and came out with organic molecules. Other scientist thought that they messed up their experiment, but once other scientists recreated and tested. They saw that Miller and Urey were correct. And that helped them see that the origin of life can come from simple cells.

4 0

3 years ago

When the vasomotor center of our brain wishes to increase blood pressure, it increases ____________ signals causing ______.

dlinn [17]

When the vasomotor center of our brain wishes to increase blood pressure, it increases the heart rate signals causing The greater contraction of the heart causes more blood vessels to constrict, increasing the blood vessels' resistance.

By speeding the heartbeat, making the heart beat harder, and constricting some blood vessels, the sympathetic nervous system increases blood pressure. This will enhance the vessels' resistance.

What controls blood pressure by the vasomotor center?

The vasomotor center modifies the tone of the vascular smooth muscle. Both the local and systemic blood pressure are impacted by this. The vasomotor center produces increased sympathetic tone when blood pressure lowers. This causes an increase in blood pressure.

How is blood pressure regulated?

The autonomic nervous system has short-term control over blood pressure (ANS). Baroreceptors are capable of detecting changes in blood pressure. These are situated in the carotid sinus and aortic arch. High arterial pressure causes the blood vessel wall to stretch, activating the baroreceptors.

What systems regulate peripheral resistance in the vasomotor center?

The vasomotor center in the tunica media regulates smooth muscle contraction or vessel tone. Circulating output is impacted by changes in peripheral resistance, pressure, and flow. The majority of these neurons are in charge of causing sympathetic neurons to release the neurotransmitter norepinephrine.

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8 0

1 year ago

Why is the process of nuclear fusion important to life on earth?

Drupady [299]

Nearly all life on Earth ultimately gets its energy from the sun, which gets "its"energy through nuclear fusion. With the exception of hydrogen, all of the chemical elements needed for life were produced by nuclear fusion of lighter elements, either in the cores of stars or in the shock waves of supernova explosions.

7 0

3 years ago

Read 2 more answers

Starting from the sun, create a food chain including at least three organisms. Explain how energy is transferred through the cha

Kryger [21]

Answer:

The food chain showing seven organisms can be drawn as follows:

Plants → grasshoppers → mice → frog → snakes→ eagles → decomposers

The plants are the primary source of food in a food chain or a food web. The animals which feed on plants will be termed as herbivores or primary consumers like the grasshopper. The organisms feeding on primary consumers will be the secondary consumers like mice.

An energy pyramid for three of the organisms can be shown as follows:

mice (10 kilocalories)

↑

Grasshoppers (100 kilocalories)

↑

Plants ( 1000 kilocalories)

As the energy pyramid shows, only about 10% of the energy travels from one trophic level to another.

Explanation:

6 0

2 years ago

Please help me with this question:)

Keith_Richards [23]

Answer:

all cells so the last one

5 0

3 years ago

1 p 1. Any change in the sequence of DNA is... O transgenic shift O Single Genotype O Monohybrid Trait O Mutation bOther:​

1 p 1. Any change in the sequence of DNA is... O transgenic shift O Single Genotype O Monohybrid Trait O Mutation bOther: