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worty [1.4K]
3 years ago
14

What evidence is there that the human species has been successful so far? Explain.

Biology
1 answer:
77julia77 [94]3 years ago
6 0
Maybe how there's 7 billion people in the world, counting. And how advanced our technology is and how there are <span>4,416 cities in the world. There's more, just google the question.</span>
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Choose the true statement(s) that support(s) the endosymbiotic theory. To be marked correct, you'll need to select all true stat
horsena [70]

Answer:

a.Many mitochondrial genes resemble proteobacteria genes, while the genes in the chloroplast resemble genes found in some photosynthetic bacteria.

c.Mitochondria and chloroplasts both have their own circular DNA and 70S ribosomes that are similar to those found in bacteria.

d.Mitochondria and chloroplasts replicate by a process similar to mitosis.

Explanation:

Endosymbiotic theory states that mitochondria and chloroplast which are organelles of eukaryotic cells were once independently living micro-organisms but with due course of time eukaryotic cells engulfed them and they become an integral part of these eukaryotic cells.

The resemblance between mitochondrial genes with those of proteobacteria and chloroplast genes with photosynthetic bacteria strongly support endosymbiotic theory. Apart from this, the presence of their own DNA that too circular just like prokaryotic microbes and 70 S ribosomes also support this theory. Also just like prokaryotic cells, before cell division mitochondria and chloroplasts undergo replication by means of a process known as binary fission.

3 0
3 years ago
In the figure, what does letter "B" represent?​
Genrish500 [490]

oral groove because of the placement..

hope this helps!!

5 0
3 years ago
Although there are a limited number of amino acids, many different types of proteins exist because the?
Yakvenalex [24]
The sequence and number of amino acids is different (each protein has a unique sequence and arrangement of amino acids).
4 0
3 years ago
What is the role of gills?
aleksley [76]
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7 0
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Starch and _____ are common polysaccharide carbohydrates found in plants.
uysha [10]

Answer: Cellulose

Explanation:

Starch and cellulose are they two primary polysacharride found in plants.

Starch is the storage polysacharride found in plants in consisting of both linear chain amylose and branch chain amylopectin.

While Cellulose is the structural polysacharride in cell wall of plants. Cellulose consist of a linear chain of thousands of D-glucose units linked together by beta linkages.

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3 years ago
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