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Advocard [28]
3 years ago
11

The term 'prehistory' refers to the time before writing was invented.true or false?

Biology
1 answer:
dexar [7]3 years ago
6 0
True because it the word pre means before
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Which is a frameshift mutation? substitution nonsense silent deletion
SSSSS [86.1K]

Answer:

deletion!

Explanation:

edge 2020

3 0
3 years ago
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Burning fossil fuels involves releasing carbon dioxide and other greenhouse gases into the atmosphere at a rate that is much fas
Pani-rosa [81]

Answer:

true

Explanation:

because the energy that comes from burning fossil fuels is converted into electricity and heat in power plants. When fossils are burned, carbon and hydrogen react with oxygen to produce carbon dioxide (CO2) and water (H2O) during this reaction heat is produced

7 0
2 years ago
What is a network of water-filled canals with thousands of tube feet called?
Ad libitum [116K]
Echinoderms I believe! Good luck, hope this helps!!
4 0
3 years ago
Since urological or gynecological exams rarely result in any sexual arousal and unwanted sexual advances produce only revulsion,
nignag [31]

Answer:

mind

Explanation:

  • An area present in the body that is highly sensitive and thus the stimulation of which may result in sexual arousal is termed as an erogenous zone.
  • There are different erogenous zones present in the body an all these zones vary in their sensitivity and these zones mainly provide a sense of pleasure upon stimulation.
  • However, the ultimate erogenous zone is the mind and one can say that it is a hidden erogenous zone as it is not exposed to tactile sensations like the other areas.
  • This is the reason why during urological or gynecological exams or unwanted sexual advances a person doesn't get sexually aroused even though the same areas are being touched.
3 0
3 years ago
(Fill in the Blank)
damaskus [11]

In the endosymbiont theory, an engulfed prokaryote that could perform  respiration evolved over the generations into mitochondria providing the cell with an efficient means of producing ATP from organic compounds.

Similarly, an engulfed prokaryote that could perform photosynthesis evolved over the generations into chloroplast providing the cell with sunlight-generated sugar.

Explanation:

Endosymbiosis is the mutual relationship between two organisms. The theory explains that eukaryotes have evolved from prokaryotic cell or organism.

The host eukaryotic cell engulfed bacteria or prokaryote as bacteria was once an independent entity which could perform cellular respiration and photosynthesis. Possibility of one more cell which engulfed other cells is there.

Mitochondria have its own DNA and is the centre of ATP production which suggests that mitochondria has evolved over the time by photosynthetic bacteria. Sequence analysis also suggest that mitochondria had evolved from eubacteria.

The bacteria integrated into plant cell able to perform photosynthesis has evolved in to chloroplast int the plant cells.

4 0
3 years ago
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