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pav-90 [236]
3 years ago
7

What are 5 facts about the Reproductive System?

Biology
1 answer:
Alecsey [184]3 years ago
6 0
•Sex cells are also called gametes
•embryos develop on the lining of the uterus
•the ovaries produce the eggs
•the process of developing and releasing eggs is called the menstrual cycle
•once a sperm cell enters an egg cell no other sperm cell can enter
•the gender of the child depends on the sperm cell
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Summarize the nitrogen cycle and it’s importance of proteins and DNA
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Answer:

Nitrogen cycle works through various stages like, nitrogen fixation, nitrification, assimilation, ammonification, denitrification etc. It is a building block for protein and DNA

Explanation:

Nitrogen is an element abundantly found in the atmosphere, also its building block for proteins as well as nucleic acid i.e. DNA formation. In nitrogen cycle , the nitrogen is being prepared from inert nitrogen.  The nitrogen cycle has several processes like nitrogen fixation, in this the inert nitrogen is being converted to organic nitrogen with the help of certain micro-organism.

Nitrification, plants cannot absorb directly nitrogen so bacteria help the plants to convert the nitrogen into ammonia form in this stage. Assimilation, another stage in which plants starts absorbing various forms of nitrogen from the soil.i.e. nitrate, nitrite and ammonium. Ammonification, here plants and animals have nitrogen in there body after death various microbes help in decomposition in this stage. Denitrification, in this stage the return back of nitrogen takes place.

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What is another word for microbial cells
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Bacteria cells, I believe so.
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The answer is b correct
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WHY IS A FOSSIL FOUND IN MULTIPLE LAYERS OF ROCK (TIME PERIODS) NOT CONSIDERED A RELIABLE INDEX FOSSIL?
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Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period. Index fossils are useful because they tell the relative ages of the rock layers in which they occur.

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Approximately how long has the victim been dead if his body temperature was 60.0°F?
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Answer:

around 8 or 9 or 10 hours.

Explanation:

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