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Alborosie
3 years ago
14

Can some help me with this-

Biology
1 answer:
harkovskaia [24]3 years ago
7 0

Answer:

Chloroplast

1. Help in photosynthesis

2.Plant cell

3.It is where chlorophyll is formed and this chlorophyll traps sunlight for photosynthesis.

4. C6H12O6 + 6O2--------> 6CO2 + 6O2 + Energy

Mitochondria

1.It posses it own DNA and also has a big surface area which makes it possible to generate more energy then supply them in the cells.

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Neurons may be classified according to several characteristics. Which of the following is correct? A. Group A fibers are mostly
den301095 [7]

Answer:

Option (B).

Explanation:

Neurons or nerve cell are the basic structural and functional unit of the nervous system. Fibers are the thread like long projection of the nerve cells.

Neurons are classified into three fibers- Group A fibers, B fibers and C fibers. The group C fibers cannot capable of doing the saltatory conduction of the nerve impulse because they are unmyelinated.

Thus, the correct answer is option (B).

3 0
3 years ago
Which of the following describes the correct stepwise assembly (in vitro) of the eukaryotic RNA polymerase II preinitiation comp
PilotLPTM [1.2K]

Answer: (TFIID) TBP-> TFIIB IIA--> TFIIF RNA POL II

Explanation:

Remember that in eukaryotic organisms, transcription and processing are coupled processes. There are 3 different types of Rna pol. In the case of RNA pol II transcribes genes that encode proteins (mRNA synthesis). Transcription factors are involved, for example: TFIID, TBPs, TAF (recognizes TATA promoter center, regulatory functions), TFIIA (stabilizes TBP union, antirepressant function), TFIIB (RNA Pol II starting point selection).

7 0
3 years ago
Question 23 (6 points)
Stels [109]

Answer: 1. Sea urchins and sea otters

2. They are prey for carnivores.

3. Sea otters, star fish

Explanation:

Sea urchins and sea otters are carnivores as they eat on the flesh of starfish and sea urchins respectively.

Starfish feed on the kelp forests which are the producers in the food chain and the starfish is the primary consumer and prey for sea urchins.  So, starfish and kelp forests are the prey in the marine ecosystem.

Keystone species is the one which controls the population of other inferior species in an ecosystem. Here, sea otters consume sea urchins so the population of sea urchins remained in control Starfish controls the population of kelp forest.

 

8 0
3 years ago
1. Which grouping in the animal kingdom is the only one that contains organisms with vertebrae?
harkovskaia [24]

Vertebrata

Vertebrata is a group that contains various organisms which possess vertebrae (backbones). Animals that belong to the group are called vertebrates, and they include mammals, birds, fish, amphibians, and reptiles. The backbones in the animals extends from the head to the tail, and it encloses and protects the main nerve cord. The body of vertebrates is divided into trunk, and tail regions. They also possess a unique tube shaped brain, a distinct head, and three pairs of sense organs.



8 0
3 years ago
Read 2 more answers
Ecology is the study of ?
Katen [24]

Answer:

Ecology is the study of ecosystems.

Explanation:

5 0
3 years ago
Read 2 more answers
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