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scZoUnD [109]
3 years ago
6

What was the sequence of human migration across the planet?

Biology
1 answer:
prisoha [69]3 years ago
7 0
Human migration is the movement over long distances, movement from one country/region  to another ) by people . Humans moved because of the c<span>hanging climate and landscape and inadequate food supply. </span>The first human movement was t<span>he movement of </span>Homo erectus<span> out of Africa across </span>Eurasia<span> about 1.75 million years ago. </span> 
Than industrialization<span> encouraged migration wherever it appeared.
Wars also created migration. (</span><span>The First and Second World Wars, and wars, genocides, and crises sparked by them, lead to migrations).</span>
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Describe how the periodic table differentiate from metals to non metals. Thanks!
DENIUS [597]
In the periodic tables metals are on the left side and nonmetals are in the right side.... so we can know whether an element is metal or nonmetal by it's position on the periodic table..
4 0
3 years ago
An analysis of chromosomes in a culture containing mutated cells may show the loss of one or more bases making up the chromosome
ankoles [38]

The answer is; deletion mutation


This type of mutation mostly causes a phenomenon called frameshift mutation whereby the 3-codon sequence reading frame is shifted causing the amino acids translated, downstream of the deletion site, to be altered. This can gravely affect the function of the translated proteins and result in genetic disease.


8 0
3 years ago
The process of angiogenesis is where: a. Two of these are correct. b. Is a critical component or requirement for wound healing t
german

Answer:

a. Two of these are correct.

Explanation:

The two correct options are

b. Is a critical component or requirement for wound healing to take place

d. Existing blood vessels give rise or sprout to form new blood vessels

Angiogenesis is the physiological means in which new blood vessels form pre-existing vessels, developed in the starting phases of vasculogenesis. Angiogenesis is a usual and important process in growth and development, wound healing and in the development of granulation tissue.

The growth and maturation of blood vessels is a largely regulated multistep mechanism called angiogenesis.

5 0
3 years ago
1. How do mammals impact ecosystems? Describe two ways. 2. Describe one symbiotic relationship between mammals. 3. How do mammal
Wittaler [7]

Answer:

Mammals undoubtedly play an important role in ecosystems by providing essential services such as seed dispersal, pollination and regulating insect populations, and reducing disease transmission [20–22] and there is some evidence that some groups act as indicators of general ecosystem health [23].

Explanation:

4 0
3 years ago
State the states of magnesium + sulfuric acid = magnesium sulfate + hydrogen gas​
Ratling [72]

Answer:

Mg(s) + H₂SO₄(aq) → MgSO₄(aq) + H₂(g)

Explanation:

Magnesium is a solid metal and sulfuric acid is aqueous (cuz all acids are aqueous)

When they react the salt formed is also in aqueous form and a precipitate of hydrogen is given off. hence H is a gas.

<em>Hope this helps </em>(●'◡'●)

3 0
3 years ago
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