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Taya2010 [7]
3 years ago
13

[2]

Biology
1 answer:
Gennadij [26K]3 years ago
5 0

Answer:

Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.

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The theory of endosymbiosis is based on Multiple Choice similarities between chloroplasts and other organelles in animals. evide
Arisa [49]

Answer:

the observations that chloroplasts and mitochondria resemble bacteria

Explanation:

The Endosymbiotic Theory is a theory that enables us to understand the origin of eukaryotic cells. The Endosymbiotic Theory posits that the mitochondria and chloroplast, which are organelles found in the eukaryotic cells, were once prokaryotic microbes that were first ingested by amoeba-like organisms and subsequently evolved by developing a symbiotic relationship with them. Some of the most important lines of evidence that supports this theory are: 1-chloroplasts and mitochondria resemble prokaryotic cells, i.e., they have a similar size, replicate by binary fission and there are unicellular eukaryotic protists that have filamentous temperature-sensitive proteins at their division plane (similarly to bacteria), and 2- chloroplasts and mitochondria are organelles with their own DNA and their own ribosomes (which are similar to those of bacteria).

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3 years ago
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What is a potential danger of excess cholesterol in the human body?
goblinko [34]
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8 0
3 years ago
HELP ME WITH BIOLOGY!
aleksandrvk [35]

Answer:

a or c

Explanation:

6 0
3 years ago
The process of change in a population over the thime is called?
qwelly [4]

Answer:

tramwayniceixand 1 otherlearned from this answer. Answer: 1. Micro-evolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift. 2.

Explanation:

This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift. 2.

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