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DedPeter [7]
3 years ago
11

Mario drops a bowling ball from a set height and measures the time it takes the bowling ball to reach the ground. He uses this t

ime and the distance of the fall to calculate the average speed of the bowling ball. He tests four different types of balls of different masses. Which question is Mario investigating?
Biology
1 answer:
Vika [28.1K]3 years ago
6 0

Answer:

How fast he can get through the pipe and to the flag. JK.

He is investigating the average speed of the bowling ball

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Why is salivary amylase active for only an hour or so, whereas lingual lipase isn't active until reaching the stomach
leva [86]

Salivary amylase will be active for only an hour or so because the optimum pH for activity of amylase is about 6.7–7.0 which is available in the mouth but the pH of the stomach is acidic around 1-2 due to which the amylase enzyme becomes inactive in short-time.

The lingual lipase enzyme is present in the saliva but isn't active until reaching the stomach because this enzyme is acid stable and works efficiently in the stomach, not in the mouth.

Amylase enzyme is secreted in the mouth and is responsible for the breakdown of starch in food into sugars and it starts acting as soon as we put food in the mouth whereas Lingual lipase enzyme is secreted along with saliva but it is not active in the mouth rather its activity starts in the stomach which is responsible for the degradation of triacylglycerol molecules.

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3 0
2 years ago
Define "Fracking" and ways it can alter/upset the water cycle.
Nata [24]

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Fracking can contaminate water supplies if it is not done properly, because the fracking fluid injected into rock to enable gas to be released often contains chemicals. If the borehole is not properly cased to stop leaks, the fracking water can escape into the aquifer

7 0
3 years ago
Plant and animal cells have which organelle in
Strike441 [17]

Answer:

cell membrane

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7 0
3 years ago
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A dihybrid cross is performed between plants that differ in two Mendelian traits: Stem length (T or t) and flower coloration (R
Dahasolnce [82]

Answer:

A. 3/16

Explanation:

The four possible outcomes for Stem length are:

Tt, tT, TT and tt.

The dominant trait (tall stems) will manifest itself in 3 out of 4 outcomes, so its ratio is 3/4.

The four possible outcomes for flower coloration are:

Rr, rR, RR and rr.

The non-dominant trait (white flowers) will manifest itself in 1 out of 4 outcomes, so its ratio is 1/4.

Multiplying both ratios gives us the ratio of offspring that have tall stems and white flowers:

\frac{3}{4}*\frac{1}{4}=\frac{3}{16}

Therefore, the answer is A. 3/16

4 0
3 years ago
Why can’t a virus reproduce on its own?
monitta

Answer:

<h3>Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own.</h3>

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<h3>They infect a wide variety of organisms: both eukaryotes (animals, fungi and plants) and prokaryotes (bacteria).</h3>

<h3>A virus that infects bacteria is known as a bacteriophage, often shortened to phage.</h3>

<h3>The study of viruses is known as virology, and those who study viruses are known as virologists.</h3><h3 /><h3>It has been argued extensively whether viruses are living organisms.</h3>

<h3>Most virologists consider them non-living, as they do not meet all the criteria of the generally accepted definition of life.</h3>

<h3>They are similar to obligate intracellular parasites as they lack the means for self-reproduction outside a host cell, but unlike parasites, viruses are generally not considered to be true living organisms.</h3>

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<h3>Examples of common human diseases caused by viruses include the common cold, the flu, chickenpox and cold sores.</h3>
7 0
2 years ago
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