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m_a_m_a [10]
3 years ago
5

Mitochondria and chloroplasts are thought to have been ______.

Biology
2 answers:
yawa3891 [41]3 years ago
6 0
Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms.
(At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed an endosymbiotic relationship with the host eukaryote, gradually developing into a mitochondrion. Eukaryotic cells containing mitochondria then engulfed photosynthetic prokaryotes, which evolved to become specialized chloroplast organelles).
Snezhnost [94]3 years ago
3 0

Free living prokaryotes

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Polysaccharide structure can be varied by differences in ________.
Scilla [17]

Answer:

monomers of MONOSACCHARIDES

Explanation:

Polysaccharides are large molecules formed from chains of POLYMERS linked together by glyosidic bonds. <u>MONOMERS are small sub units that formed polymers, they are therefore the building block of a polysaccharides.  The monomers of polysaccharides are called monosaccharid</u>es (1 sugar molecule.) when two of these are joined together they formed disaccharides (two sugars.)

Polysaccharides are fromed by joining  together condensation, (loss of water molecules,)  of mutiple monosaccharides units and the reversal of this to add water molecules to sepate them to monosaccharies is  sugar Hydrolysis.

Example of polysaccharides are starch, glycogen cellulose

Example of monosaccharides are glucose, galactose.

Disaccharides are common table sugar, sucrose, maltose, lactose  

7 0
3 years ago
Plz help , trying to fix grade
ExtremeBDS [4]

Answer:

What would happen if gametes had a full set of DNA? The number of DNA strands would double with each generation. One gamete cell divides into four cells, but each resulting cell has half the amount of DNA as compared to the original cell. Body cell mitosis

Explanation:

5 0
2 years ago
Which phase of mitosis is where two nuclear membranes are formed?
natali 33 [55]
During the prophase the nucleoli in the nucleus disappear. The chromatin fibers become tightly ccoiled and condense into chromosomes. Chromosomes line up in pairs and are joined at the centromere. In the cytoplasm, the spindle fibers begin to formand are made of microtubules.
5 0
3 years ago
Faking an exaggeration injuries are a natural part of sports True or False ?‍♀️
GenaCL600 [577]
The answer is false i believe

3 0
3 years ago
Read 2 more answers
The mass of an object doubles. What happens to the gravitational force between it and another object whose mass stays the same,
Delicious77 [7]

Answer:

part b is the right answer

Explanation:

The amount of the gravitational force doubles

5 0
3 years ago
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