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nirvana33 [79]
3 years ago
13

Which of these are examples of Newton's 1st law of motion. Check all that apply.

Biology
2 answers:
jeka943 years ago
7 0

Answer:

I don't know if this is right but c

astra-53 [7]3 years ago
4 0

Answer:

a. A book sitting on a desk.

Explanation:

an object will stay at rest until an external force is provided

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We will be looking at the amount of glucose in Shawn's blood today.
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A marine scientist concluded that the Canary Islands were not formed by volcanic activity because his data showed that the fault
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3 years ago
Describe an investigation into the effect of bile on fat digestion. You are given some cloudy fat suspension, which turns clear
Sauron [17]
Because bile contains salts and digestive compounds and lipase is a digestive enzyme, you might create a simple qualitative experiment to test the action of bile and lipase. Bile is first used to emulsify and break down food entering the small intestine, and lipase is used afterwards by the pancreas to break down fats. With this information, I suggest this experiment:
1) Label 4 test tubes A, B, C, and D. Divide the fat solution equally into the 4 tubes.
2) In tube B, add an x amount (but not the whole volume) of the bile solution.
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4) in tube D, add the x amount of bile and the y amount of lipase solution. 
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4 0
4 years ago
Read 2 more answers
Compared to arteries, the velocity of flow of the blood through the capillaries is:______.
Nutka1998 [239]

Answer: D) much slower

Explanation:

The circulatory system, made up of arteries and veins, is fundamental to maintaining life. Its function is the delivery of oxygen and nutrients to all cells, as well as the removal of carbon dioxide and waste products, the maintenance of physiological pH, and the mobility of the elements, proteins, and cells of the immune system. An artery is each of the vessels that carry blood with oxygen from the heart to the capillaries of the body. They arise from a ventricle and their walls are very strong and elastic to resist the pressure that the blood exerts when it is pumped out of the heart.

Capillaries are very small diameter, thin-walled blood vessels connect small arteries (arterioles) to veins, allowing nutrients and oxygen to pass through to tissues.  The main function of the capillaries is the exchange of substances between the light of the capillaries and the cell interstice of the tissues.

When the blood reaches the capillary bed, the speed with which it circulates inside these vessels is very low. This is due to the fact that in a branching system of tubes, the speed decreases proportionally to the increase in the joint section of the branches. Thus, in the aorta, which has a small section, the speed is very high (400 mm/sec), it decreases at the level of the arteries and arterioles and at the capillary level it becomes minimal (0.1 mm/sec). <u>This fact, together with the thinness of the capillary wall, provides the necessary conditions of time and space for the exchange to take place in the most optimal way.</u>

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7 0
3 years ago
How do mutations introduce new traits?
never [62]

Answer:

The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population.

Explanation:

4 0
3 years ago
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