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professor190 [17]
3 years ago
10

Describe mendeleev periodic table in short​

Biology
2 answers:
kkurt [141]3 years ago
8 0

Answer:

it is very long but for kind information you can find it in your science book

Explanation:

in modern graded book

agasfer [191]3 years ago
3 0

Answer:

Mendeleev created a periodic table of all the elements that were known at the time. The rows of the table, called periods, each contained eight elements that increased in atomic mass from left to right. The columns of the table, called groups, contained elements with similar properties.

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Which of the following Kingdoms does not contain Autotrophs?
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Answer:

b planted

Explanation:

Kingdom Plantae includes multicellular, autotrophic organisms. Except for a few species that are parasites, plants use photosynthesis to meet their energy demands. Kingdom Fungi includes multicellular and unicellular, heterotrophic fungi.

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What genus are humans in?<br> A. Homo<br> B. Sapiens <br> C. Erectus<br> D. Sula
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The answer is A Homo

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People continue to have strong opinions triggering ongoing debates about stem cell research. Organize the points as either the p
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Answer:

<u>Pro:</u>

May hold answers to cure various diseases including Alzheimer's and Parkinson's - these may be answers to various diseases that are not able to cure.

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Medical benefits such as regenerating organ tissue and therapeutic cell cloning

<u>cons:</u>

ethical controversy over use of stem cells from lab fertilized human egg - there is an ethical controversy around the use of lab fertilized human egg

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2 years ago
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Bacteria convert atmospheric nitrogen to which of the following in the process of nitrogen fixation?
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Q1) Bacteria are capable of converting atmospheric N in the form of N2 gas to NH3. this process is known as nitrogen fixation. N2 in the atmospheric form is not usable by other organisms, therefore specialised bacteria such as Azetobacter species are capable of carrying out this conversion from N2 gas into NH3 form that can be used by other organisms 


Q2) Condensation.

Water in the gaseous state or known as vapour state converted to liquid state, process is known as condensation. in condensation the particles in water become more tightly packed and heat energy is removed from these particles reducing their kinetic energy thus becoming liquid state


Q3) 

Transpiration declines

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Q4) the sun

sun is the major source of energy that facilitates the recycling of water in the water cycle. The sun causes water to be evaporated from water bodies and converted to water vapour. This water vapour is then recycled.


Q5) Plants can’t use Nitrogen in the form of N2

N is an essential element needed by plants, however plants cannot use up the atmospheric N2 gas. therefore bacteria are capable of nitrogen fixation that converts N2 gas into forms that can be used up and absorbed by the plants from soil.


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