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daser333 [38]
3 years ago
15

In which era did human history begin?

Biology
1 answer:
Svetllana [295]3 years ago
7 0

Answer:

Prehistoric

Explanation:

The Prehistoric Period—or when there was human life before records documented human activity—roughly dates from 2.5 million years ago to 1,200 B.C. It is generally categorized in three archaeological periods: the Stone Age, Bronze Age and Iron Age.

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I only need help with number 2 and 3 please answer both i mark you as brainlist
kakasveta [241]

Answer:

Reading graphs: The variable plotted on the x-axis is year while the two variables plotted on y-axis are both wolves and moose.

Interpreting variables: The population of moose rose from 800 to 1550 between 1965-1972 while the population of wolves rose from 24 to 43 between 1973-1976.

inferring: The change in population of moose might cause a change in wolves population as a result of the feeding pattern of wolves, perhaps the contest between them was affected by availability of another prey which allows the predator (wolves) to feed on another prey, hence increasing the population of moose.

Conclusion: The dip in population of moose between 1974 and 1981 could be attributed to voracious feeding pattern the predator (wolves) had on the prey (moose) which inturns allows the dip in population during the above mentioned years.

Predicting: If there is a disease infection in wolves, then there would be an increase in the population of moose the next year as a result of disruption in the predator-prey contest, hence; allows one to be more populated the following year.

Explanation:

From the above assertions, it could be deduced that only when the feeding pattern of the predator (wolves) changes then the population of the prey would either be reduced or increased.

5 0
3 years ago
Which of the following are considered renewable resources?
elena55 [62]

Answer:

B.wind and C.solar

Explanation:

hope it helps

8 0
3 years ago
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Some people who have narcolepsy experience a sudden loss of muscle tone, a condition called ________. This can be very dangerous
DENIUS [597]

Answer:

              Cataplexy is condition in which sudden loss of muscle tone occur.

Explanation:

                    Cataplexy is sudden and uncontrollable muscles weakness or paralysis that comes on during the day and is often triggered by a strong emotion such as excitement or laughter. Cataplexy occur during working hours. A more severe episode may involve total body collapse. In cataplexy the voluntary muscle tone occur. This condition is mostly associated with narcolepsy which is a sleep disorder.. Symptoms of cataplexy have;

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3 years ago
A cell has 10% dissolved particles, and the solution has 20% dissolved particles.
professor190 [17]

The  solution is hypertonic, and the cell will lose water.

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3 years ago
Why is Photosynthesis important? (Check all that apply)
Oksana_A [137]

Answer:

"plants release oxygen"

Explanation:

Photosynthesis is critical for the existence of the vast majority of life on earth...so we'll go with "plant release oxygen"

4 0
3 years ago
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