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ladessa [460]
3 years ago
10

True or false by selecting for or against certain genes (or traits) l, natural forces shape evolution at the population level fo

r a species
Biology
1 answer:
stepan [7]3 years ago
6 0
True, natural evolution is why humans have molars and canines and why whaes don't have legs
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GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect bor
SashulF [63]

Answer:

The minimum mass of dissolved cholesterol that the new system must be able to detect is 0.43 milligrams.

Note: The question is incomplete. The complete question is:

<em>GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect borderline high levels of dissolved cholesterol (170, to 200. mg/dL), using a blood sample that is as small as 250 μL Calculate the minimum mass in milligrams of cholesterol that the new system must be able to detect Be sure your answer has the correct number of significant digits.</em>

Explanation:

Range of the equipment to detect cholesterol in blood = 170.0  to 200.0 mg/dL

Minimum amount of cholesterol that can be detected by instrument = 170 mg/dL

Volume of blood sample = 250 <em>μ</em>L= 0.0025 dL (1 dL = 100000 <em>μL)</em>

Amount of dissolved cholesterol in 250 <em>μL</em> sample of blood =

170 mg/dL * 0.0025 dL =  0.425 mg

The minimum mass of cholesterol that the new system must be able to detect is 0.43 milligrams.

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3 years ago
Is the following a hypothesis: temperature will affect the cohesion of water to a penny?
lorasvet [3.4K]
It's not a hypothesis because it's asking a question for example a hypothesis is a statement supported by evidence so for example "my hypothesis would be the temperature does affect the cohesion of water to penny because of this and that"

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3 years ago
The best way to select foods that are vitamin rich is to: read the food labels on processed foods to see the listed vitamins. me
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Your answer is <span>C: select a wide variety of whole foods to get a balance of vitamins.

Using whole foods to get vitamins instead of taking vitamin pills allows your body to achieve better absorption rates of the vitamins thus increasing the effectiveness of the benefits.</span><span />
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How do speed and direction affect velocity?
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Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.

Explanation:

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The genetic-environment correlation where children with different genetic composition evoke responses from adults that strengthe
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6 0
3 years ago
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