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Triss [41]
3 years ago
5

Why is evolutiom cosidered to be a scientific theory?

Biology
1 answer:
Fittoniya [83]3 years ago
6 0

Because it can't be proven absolutely. Their are so many other scientific and religious theories and this one is one of the most popular.

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Which of the following venation patterns is characteristic of monocot leaves
Lena [83]

Answer:

Which of the following venation patterns is characteristic of monocot leaves

Monocot leaves have parallel venation as the vein runs in a straight line e.g zea maize leaf

Explanation:

4 0
4 years ago
A man who heavily smokes has developed lung cancer. The tobacco smoke has caused mutations in some of the cells in his lungs, ma
JulsSmile [24]

Answer:

The correct answer is "If he inherited a mutation which made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children".

Explanation:

trust

7 0
2 years ago
Which of the following is a multicellular organism?
Tresset [83]

Answer:

The answer would be C. mouse.

Explanation:

This is because it has more than one cell. A. Bacterium is unicellular, along with an amoeba and paramecium because they are basic units of life, with only a single cell.

4 0
2 years ago
What chemical compound is crucial to marine life and how it is disappearing
Setler79 [48]

The answer is nitrogen. It is usually regarded as a growth-<span>limiting</span> factor for <span>primary</span> <span>producers</span> such as <span>phytoplankton</span>. It is <span>usually</span> taken up in the ‘fixed’ form of ammonium. It is converted from <span>dissolved</span> nitrogen gas in ocean surface to a ‘fixed’ form by particular microbes. Due to <span>increasing</span> global <span>temperatures,</span> as a result of global warming, the ocean temperatures have increased hence oceans hold less dissolved oxygen than they used to. <span>The low</span> oxygen concentration in the oceans <span>induces</span> the loss of nitrogen from oceans through <span>increased</span> activity of micro-<span>organisms</span> that are significant in denitrification. This rate becomes higher than that of nitrification that fixes nitrogen in the oceans. <span> </span><span> </span>

7 0
4 years ago
How are photosynthesis and respiration related?
malfutka [58]

They have opposite equations

Photosynthesis : carbon dioxide + water —> glucose + oxygen + water. A balanced chemical equation for the process can be written as 6CO2 + 6H2O —> C6H12O6 + 6O2

Respiration : oxygen and glucose, and produces carbon dioxide, water, and energy. The chemical equation is C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water)

4 0
3 years ago
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