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Naddik [55]
3 years ago
10

Identifying technological advancement

Biology
1 answer:
katovenus [111]3 years ago
7 0

Answer:

It occurs to create innovation in the existing technology.

Explanation:

A technological advancement is an attempt to develop current materials, devices, products or processes by further understanding of science.  technological advancement provides innovations of existing technology or formation of new technology in order to better the life style and make easier our work. If the technological advancement did not occur, we are unable to increase efficiency of various instruments and machines.

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The mean resting pulse rate for men is 72 beats per minute. a simple random sample of men who regularly work out at mitch's gym
tamaranim1 [39]

Claim: the mean resting pulse rate for men is less than 72 bpm.

Symbolic form would be: μ < 72

Step 1: null hypothesis  : μ > =  7 2 b p m

Step 2: alternative hypothesis:  μ <  7 2 b p m



Step 3: the test statistic is z = mean – μ / standard dev/sqrt (n) = -3/4 / 1.7639 = -1.92


Step 4: c v method: since z α = -1.645, the test static is z = -1.92 is less than the CV, we reject null hypothesis


            P Value method: area is 0.0274, since the p value is <= α, reject null hypothesis.

Step 5: the sample data support the claim that the mean resting pulse rate for men is less than 72 bpm.

5 0
3 years ago
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What does the sun do for the human body
Julli [10]
Vitamin D , better skin, healthier hair, etc.
7 0
3 years ago
Fossils layers 175 mya, 250 mya, 400 mya, 450 mya
Alenkinab [10]

450 mya, is where you would find fossils.

Explanation:

The first layer would be newer organismis that haven't quite decayed yet.The second and third layer is where the bones of the dead organasims lie, they havent quite been through the whole process yet, but they are nearly complete just about 100,000 years left.The fourth layers have been through alot, and have been there for many many years we can say abot 100,000,000 years.They are ready to become a fossil fuel.

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What is it called when a chemical enters the blood stream?
Gnoma [55]

The fourth way chemicals can enter the body is by injection. It can happen when a sharp device (like a needle) punctures the skin and injects a chemical (or virus) directly into the bloodstream, however it is unusual in most industries.

<h3>What in biology is the blood stream?</h3>

The phrase "bloodstream" refers to the flow of blood within an organism's body. In humans, the circulatory system, which is made up of a complicated network of arteries and veins, is where blood travels.

<h3>Where does the bloodstream reside?</h3>

The blood is gathered in veins and moves to the right atrium and right ventricle while being depleted of oxygen. The pulmonary circulation starts here: Low-oxygen blood is pumped from the right ventricle into the pulmonary artery, which divides into progressively smaller arteries and capillaries.

To learn more about bloodstream visit:

brainly.com/question/22222516

#SPJ4

5 0
1 year ago
Why do cells need a selectively permeable barrier?
Alja [10]
Well so only good stuff goes in and only bad stuff comes out.
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