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sveta [45]
4 years ago
11

What organelles exist in a plant cell

Biology
1 answer:
Fiesta28 [93]4 years ago
6 0

There's many organelles that exist, but the (main) organelles that help and produce many things would be cell wall, a large central vacuole, and plastids which originate around chloroplasts.

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Which is not a type of fault?
3241004551 [841]

Answer:

Option (C)

Explanation:

A fault is defined as the fracture along which the blocks of rock move. This fracture can be linear or curved. The force of compression and tension acts on the rocks along this fracture, as a result of which, one of the block moves up or down relative to the other.

There are various types of fault such as -

(1) Normal fault- here the hanging wall moves down in comparison to the footwall.

(2) Thrust fault- here the hanging wall moves up in comparison to the footwall.

(3) transform fault- When two lithospheric plates slide past one another it forms a transform plate boundary. For example the San Andreas fault.

There is no such type of diagonal fault.

Thus, the correct answer is option (C).

6 0
3 years ago
The portion of the brain responsible for conscious thought, reasoning, and abstract mental functions is the:
Ne4ueva [31]

Answer:

The correct answer is A. The portion of the brain responsible for conscious thought, reasoning, and abstract mental functions is the cerebrum.

Explanation:

The cerebrum is part of the central nervous system and comprise most of the human brain. The cerebrum processes impulses from sensory nerve cells and regulates voluntary movement. It is also the place where cognitive and emotional processes (including logical reasoning, planning, memory, emotion) take place.

5 0
3 years ago
Homeostasis is controlled by what feedback mechanism? how does it work?
son4ous [18]
It is controlled by negative feedback loop.Let's say you have high glucose level in your blood,that will be registered and pancreas will produce more insulin to keep it in the normal range.Therefore by negative feedback loop it will regulate homeostasis
6 0
4 years ago
How many years ago did scientist believe the earth was formed
BigorU [14]
Approximately 4.5 billion years ago
4 0
4 years ago
One of your skin cells is about to replicate its DNA. What happens first?
Ymorist [56]

Answer:

<em>The correct option is C) The helicase enzyme unwind the DNA molecule into two strands.</em>

Explanation:

DNA replication occurs in a semi-conservative manner. This means that each strand of the DNA can give rise to a new strand. For the process of DNA replication to begin, firstly it is necessary that the DNA unwinds. Topoisomerases are enzymes which are known to remove the super-coiling of the DNA. Helicases can be described as the enzymes which separate the two strands of DNA from the region where replication has to begin. Hence, option C is correct.

7 0
3 years ago
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