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11Alexandr11 [23.1K]
2 years ago
6

The human race was traced to how many million years ago?​

Biology
2 answers:
Eddi Din [679]2 years ago
8 0

Answer:

12 billion years and beyond

Explanation:

Alexandra [31]2 years ago
8 0

Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years. One of the earliest defining human traits, bipedalism -- the ability to walk on two legs -- evolved over 4 million years ago.

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What is the significance of a chemical formula?​
Allushta [10]

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<em>The </em><em>significance</em><em> of</em><em> </em><em>chemical</em><em> </em><em>formula</em><em> is</em><em> </em><em>that </em><em>it </em><em>tells </em><em>us </em><em>a </em><em>lot </em><em>about </em><em>the </em><em>chemical</em><em> </em><em>reaction</em>

<em>like </em><em>the </em><em>name </em><em>of </em><em>elements</em><em> </em><em>involved</em><em> in</em><em> it</em><em>,</em><em> </em><em>number</em><em> of</em><em> </em><em>atom </em><em>of </em><em>each </em><em>element</em><em> </em><em>and </em><em>it </em><em>also </em><em>shows</em><em> </em><em>that</em><em> </em><em>which </em><em>type</em><em> of</em><em> </em><em>reaction</em><em> is</em><em> </em><em>going</em><em> on</em>

<em>like </em><em>exothermic</em><em> </em><em>and </em><em>endothermic</em><em>,</em><em> </em><em>combination</em><em>,</em><em> decomposition</em><em> </em><em>etc </em>

<em>hope</em><em> it</em><em> helps</em>

4 0
3 years ago
How does the human immune system work
jarptica [38.1K]

Answer:

The acquired immune system, with help from the innate system, produces cells (antibodies) to protect your body from a specific invader. These antibodies are developed by cells called B lymphocytes after the body has been exposed to the invader. The antibodies stay in your child's body.

5 0
2 years ago
What does the word Immigrant mean to you?
iragen [17]

Answer:

someone who moved from a different country looking for job opportunities

Explanation:

6 0
3 years ago
inheritance of biological characteristics is determined by individuals units known as genes. In organisms that reproduce sexuall
nasty-shy [4]

Answer:

Principles by Mendel

Explanation:

The heritage principles of Gregor Mendel are at the core of modern genetic engineering. Mendel has created three heritage principles by conducting experiments with pea plant breeding, which described the passing on of genetic characteristics before anyone thought that genes did exist.Mendel referred to this components as "elementen" and suggested that, throughout sexual reproduction, each parent contributes a form of elementary elementen to the resultant offspring. This blend of parental elementen then defined what type of characteristic was noticeable in the descendants.

Genetic concepts are laws or guidelines regulating the biological heredity process, the transition of parents' to children's attributes by information that is biochemically transmitted by DNA, to gene units.

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3 years ago
Can radiation treatment for cervical cancer cause liver cancer
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Any radiation of any kind can cause cancer. So many things today can be connected to cancer that making the assumption that radiation for cervical cancer causes liver cancer is plausible. 
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