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lesya [120]
3 years ago
14

Explain if an unknown substance found on a meteorite is determined to contain no trace of carbon, can scientists conclude that t

here is life at the meteorites origin
Biology
1 answer:
Svetach [21]3 years ago
5 0
All life as we know it is carbon-based, so what scientists could determine is that there is no carbon-based life at the origin of the meteorite. However, this does not necessarily mean that there is no life there; our knowledge is only based on our experiences of life on Earth, so it is possible that life has developed in other regions of space upon other elements and formations. For example, there could be life based on silicon or other chemical compositions. 
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In pea plants purple flowers are dominant to white flowers.
algol13

Answer:

100%

Explanation:

This question involves a single gene coding for flower color in pea plants. The allele for purple flowers (P) are dominant to white flowers (p). This means that purple color will be expressed in a heterozygous state.

According to this question, If two white flowered plants are cross i.e. pp × pp, the following gametes will be produced by each of the parent: p and p. Using these gametes in a punnet square (see attached image), ALL (100%) of the offsprings will be white colored (pp).

Therefore, 100% of the offsprings will be white flowered.

6 0
3 years ago
What controls the function of the cell
blsea [12.9K]
The nucleus because it is the brain of the cell, it's what controls it.
4 0
3 years ago
N your own words, describe why animals are eukaryotic organisms, and why we say their cells are advanced and
Marina CMI [18]

Answer:

The animal kingdom is unique among eukaryotic organisms because most animal tissues are bound together in an extracellular matrix by a triple helix of protein known as collagen. Plant and fungal cells are bound together in tissues or aggregations by other molecules, such as pectin.

Explanation:

The ability to maintain different environments inside a single cell allows eukaryotic cells to carry out complex metabolic reactions that prokaryotes cannot. In fact, it's a big part of the reason why eukaryotic cells can grow to be many times larger than prokaryotic ones.

Hope this helps!!!!!

3 0
3 years ago
Read 2 more answers
The reduction of friction between the parietal and visceral surfaces of an internal cavity is the function of
eduard

Answer:

The reduction of friction between the parietal and visceral surfaces of an internal cavity is the function of serous fluid.

Explanation:

Between the parietal layer and visceral layer of an internal cavity there is serous fluid that reduces the friction between these two surfaces and allows an easier movement of the parietal and visceral layers. The serous fluid is produced by serous glands that are in the parietal and visceral membrane.

3 0
3 years ago
How does the structure of cholesterol differ from that of a fat?
Goryan [66]
Structure cholesterol is different from fat because it caused by oil or oily foodings
5 0
3 years ago
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