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kiruha [24]
3 years ago
14

How long did it take for the population to double once again?

Biology
1 answer:
aalyn [17]3 years ago
7 0

Answer:

1649 years

Explanation:

It took 1649 years for the world population to double, going from . 25 billion people to . 50 billion people

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For which of these is DNA ultimately responsible?
Citrus2011 [14]
Both a and b because brown hair is a trait passed down and the word “inherited” lets us know someone else in the family has had the disease before
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3 years ago
Which of the following statements does not support the conclusion that giraffes are k-selected species?
Trava [24]

The correct answer is C. Newborn giraffes are capable of coordinated walking within an hour of birth, and running within 24 hours of birth.

Explanation:

In biology, k-selected species are species that have stable populations although they do not give birth to multiple offspring at once and individual offspring are mainly big animals that require more time to mature this makes parents invest more time and effort in them to guarantee they survive. According to this, giraffes can be classified as k-selected species because they usually have limited offspring (Giraffes rarely give birth to twins), they seem to mature slowly and offspring requires more care and time (giraffes begin mating at 6-7 years of age) and they are large when they are born (Giraffes are approximately 6’ tall and weigh 150 lbs at birth).

However, the fact "Newborn giraffes are capable of coordinated walking within an hour of birth, and running within 24 hours of birth" does not support the idea these animals are k-select species because this shows rapid maturation and little time and effort invested which is the opposite to k-selected species.

4 0
4 years ago
The laboratory analysis of a blood or urine sample to determine how much of a certain nutrient is present in the sample is an ex
sertanlavr [38]

Osmolality tests is performed to determine the level of a certain nutrient present in the blood and urine.

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Osmolality tests measure the level of certain substances in blood, urine, or stool.

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Osmolality test is also performed to check the balance between water and certain chemicals in blood.

Osmolality test also done to diagnose dehydration .

Therefore,osmolality test is done to determine the level of a certain nutrient in blood or urine sample.

Learn more about osmolality test here:

brainly.com/question/1248783

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Which pair best matches a type of land cover with an appropriate land use?
shutvik [7]

b is the correct answer.

3 0
3 years ago
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