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Serga [27]
3 years ago
7

The endosymbiosis theory states the orgin of the eukaryotic cells began when

Biology
1 answer:
skelet666 [1.2K]3 years ago
7 0

Answer:

The correct answer is B. Prokaryotic cell consumed a smaller cell.

Explanation:

Endosymbiosis theory says that the origin of eukaryotic cell happens when a bigger prokaryotic cell consumer a smaller prokaryotic cell but the bigger cell did not consume the smaller cell rather these two cells remain in symbiotic association with each and later evolved as a eukaryotic cell.

The evidence of this theory can be seen in eukaryotic cells in the form of mitochondria and chloroplast in animal and plant cells. These two organelles are very closely related to today's prokaryotic cells.

Both the organelles have their own circular genome enclosed in double membranous structure and 70s ribosomes which resembles the bacterial cell. Therefore, the correct answer is B. Prokaryotic cell consumed a smaller cell.

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Sally and Harry fall in love. They introduce Sally's identical twin, Emily, to Harry's identical twin, Ken. Soon there is a doub
Lesechka [4]

No their babies won't look alike.

<h3>Explanation:</h3>

Both the couples mentioned here i.e. Sally - Harry and Emily - Ken are both identical twins. So they have similar pairs of genetic setup. This was possible because they developed from same zygote.

But during gametogenesis, crossing over and independent assortment occurs which brings about variation in genetic setup among the offspring. And it's very less probable that same crossing over will occur between the gametes of these couples. So, their offsprings won't look same.

6 0
3 years ago
Without the rough er cells would ?
Degger [83]
There are two basic types of ER. Both rough ER and smooth ER have the same types of membranes but they have different shapes. Rough ER looks like sheets or disks of bumpy membranes while smooth ER looks more like tubes. Rough ER is called rough because it has ribosomes attached to its surface. 

<span>The double membranes of smooth and rough ER form sacs called </span>cisternae. Protein molecules are synthesized and collected in the cisternal space/lumen<span>. When enough proteins have been synthesized, they collect and are pinched off in </span>vesicles<span>. The vesicles often move to the Golgi apparatus for additional protein packaging and distribution. </span>

Smooth ER (SER)<span> acts as a storage organelle. It is important in the creation and storage of lipids and </span>steroids<span>. Steroids are a type of ringed organic molecule used for many purposes in an organism. They are not always about building the muscle mass of a weight lifter. Cells in your body that release oils also have more SER than most cells. </span><span>

God Bless:)</span>
6 0
3 years ago
How many chromosomes are in an adult wild mouses sperm cell?
Colt1911 [192]
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7 0
3 years ago
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The process of _____________ is modeled in the plant cell diagrams seen here.
grigory [225]

<u>Answer:</u>

The process of "Osmosis" is modeled in the plant cell diagrams seen here.

<u>Explanation:</u>

Osmosis is the natural gross migration of solvent particles into a zone of higher solute concentration via a selectively permeable membrane, in the path that seeks to balance the amounts of solvents on both the ends. Osmosis as biological membranes are semipermeable, is a critical mechanism in biological systems.

Such membranes are usually impenetrable to massive and polar molecules like polysaccharides, ions and proteins while being porous to hydrophobic or non-polar molecules like lipids and to small molecules as carbon dioxide, oxygen, nitric oxides and nitrogen.

4 0
3 years ago
All the cardinals living in a park is an example of a(n)
LuckyWell [14K]

Answer:

i would say community

Explanation:

3 0
3 years ago
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