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kari74 [83]
2 years ago
15

how big is the biggest thing in the universe? a. 100 million miles across b. ten thousand decibels c. 80 million light years d.

no one knows for sure ​
Biology
1 answer:
Wewaii [24]2 years ago
8 0

Answer:

d. no one knows for sure

Explanation:

The universe is infinitely big. It goes on forever and ever, so no one knows what's in it. We might find something really big, but we'll never know if there's something even bigger out there.

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When blood that is high in carbon dioxide exits the heart, it immediately enters which body system?
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Answer:

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Explanation:

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Why might having an excretory system that excretes urine be a disadvantage in a desert environment? how can desert animals overc
Pani-rosa [81]
<span>In a desert, water is in scarce supply, so excreting water would be a bad thing and might cause the death of any animal that does so due to dehydration. There can be several different mechanisms to overcome this. One would be to have the bladder discharge urine into the large intestine where the water can then be reabsorbed into the body while the urea in the urine is passed out along with other solid wastes produced by digestion. Some other methods of conserving water would be for the kidneys to extract more water from the urine leaving the urine fairly concentrated. Also animals may behave in manners that conserve water such as staying in the shade during the day and only being active at night.</span>
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2 years ago
Predation is when a predator feeds on another organism, which is referred to as the predator's prey.
Alecsey [184]

Answer:

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Explanation:

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On that contains carbon.

Explanation:

Mark ii brainliest if it helps you ❤️

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