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Zarrin [17]
4 years ago
10

True or false paleolithic people probably lived in small nuclear family units

Biology
1 answer:
skad [1K]4 years ago
7 0

The given statement is false, as Paleolithic people thrived in the groups of 20 to 30 individuals.  

At the time of Paleolithic, the hominins gathered together in brief societies, like bands, and survived by fishing and gathering plants, scavenging or hunting wild animals. The Paleolithic era is featured by the application of knapped stone tools, however, tools made up of woods and bones were also used by humans at that time.  


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Why is it beneficial for the sex cells made at the end of meiosis to be DIFFERENT from each other?
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if sex cells were identical, there won't be genetics variations and we will just all be identical to our parents. genetic variation allows us to better adapt and survive

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After the three days, what happens in each test tube? why? what is necessary for rust to occur? how does this activity demonstra
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The situation would be that, in a sealed tube,  there are 3 to 4 nails inside and a certain amount of calcium chloride was added. After three days, there will be no changes to be observed in the first tube since the oxygen is not enough to initiate a change and there is no presence of water. For the second test, the same situation is made but boiling water was filled in the tube. For this, no changes would still be observed since there is no moisture. For the last test, the same situation as the first but it is filled halfway with water. After 3 days, rust would be observed on the nails. In order for rust to happen, there should be water and oxygen. The oxygen in the early atmosphere of the Earth would react with iron present in the oceans thus producing iron ores.
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4 years ago
Estimates of current rates of extinction
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Estimates of current rates of extinction indicate that rates may be greater than extinction rates seen in the fossil records.

<h3>What is extinction of species?</h3>

Extinction of species refers to the event in which species of organisms are entirely wiped from existence either by man-made causes, natural disasters or disease.

The recent industrial age and many technological advancements by man has resulted in rapid extinction of species .

Estimates of current rates of extinction indicate that rates may be greater than extinction rates seen in the fossil records.

Learn more about extinction at: brainly.com/question/1048615

4 0
2 years ago
Identify and define the root in the following term.
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Although the drop-down boxes are not shown, I will answer the question as follows:

The etymology of the word pericardium comes from the Greek perikardion; Greek prefix "peri" meaning "around" and the suffix "cardio" meaning "heart"

With this information you can solve the question.

Explanation:

The pericardium is a double layer where the heart is lodged. It has two membranes: the fibrous pericardium and the serous pericardium. The fibrous pericardium is formed by connective tissue. Its function is to protect the heart from the outside, it also allows you to join it with the heart cavity. While the serous pericardium is a bag where the myocardium is lodged. It consists of two layers: the visceral layer, joins the heart muscle, and the parietal layer, attached to the serous pericardium.

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3 years ago
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