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Nastasia [14]
3 years ago
14

Describe the water vascular system

Biology
1 answer:
Leno4ka [110]3 years ago
7 0
<span> It is a hydraulic </span>system<span> used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The </span>system<span> is composed of canals connecting numerous tube feet.</span>
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Conventionally pasteurized milk is sterile.<br> a. True<br> b. False
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Answer: False

Explanation:

Conventionally pasteurized milk is not sterile it gets sterile after it is homogenized. The process of pasteurization involves sudden heating and sudden cowling of milk which does not kills all the microorganism but is intended to kill some of the bacteria and inactivates some enzyme.

Homogenization is a completely separate process  which involve mechanical breakdown of fat molecules in the milk which increases the shelf life of milk by preventing the cream from rising at the top.

Hence, the given statement is False.

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Select a type of renewable energy. Compare it to fossil fuels by explaining two pros and two cons for its implementation on a la
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Answer:

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Bio gas is gotten from the anaerobic breaking down of biomass especially animal waste.

PROS:

A. it is renewable: biogas is renewable and has an endless supply of material since animals are the main source when compared to fossil fuels.

B. It doesn't involve a rigorous mining exersice to get to like fossil fuels and it is in accessible abundance.

CON:

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B. Some of the gases liberated in the manufacturing process are greenhouse gas, especially methane. These gases if let out, will contribute immensly to global warming.

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With the given information we can calculate instatenous speed and average speed

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