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prohojiy [21]
3 years ago
6

Which of the following occurs during the light-dependent reactions of plants?

Biology
1 answer:
zubka84 [21]3 years ago
3 0

Answer:

The correct answer will be option-D.

Explanation:

Photosynthesis proceeds in two stages: light-dependent and light-independent reaction.

The light-dependent begins when the chlorophyll pigment of the photosystem absorbs light energy.  This absorption causes the excitation of the electrons provided by the chlorophyll molecule.  

The excited electrons accepted by electron acceptor molecule from reaction center and a chain of electron flow begin called electron transport chain.

This transport of electrons creates a scarcity of electron in photosystem which causes splitting of the water molecule as a result of which oxygen gas is released.  

Thus, option-D is the correct answer.

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Which statement best explains why a karyotype can be used as a scientific report
tresset_1 [31]

The correct answer is:

"A karyotype can be used for reporting medical concerns and possible genetic disorders

Explanation;

A Karyotype is the number of the chromosome in a cell. In humans, the typical amount of chromosomes is 46. Seldom humans have a varying number of chromosomes and then the karyotype (for example the number) can be used for inscribing for example of genetic disorders- so the answer is that it can be used for reporting of genetic disorders.


4 0
3 years ago
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Which lymphoid organ extracts aged and defective blood cells and platelets from the blood in addition to storing some of the bre
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Answer:

The spleen

Explanation:

The spleen acts as a filter for blood by recycling old and defective red blood cells. It also stores red blood cells, platelets and white blood cells.

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3 years ago
The three basic regions of the cerebrum are the cerebral cortical gray matter
Natasha_Volkova [10]

Answer:

a)  Myelinated nerve fibres

b) The white matter

c)  gray matter

Explanation:

The three main parts of cerebral hemispheres are  

a) Myelinated nerve fibers

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The nerve fibers of the white matter are responsible for connecting the functional parts of cerebral cortex while the gray matter is further divided into four surface folds/lobes with each lobe associated with a specific activity. Such as frontal lobe take cares of motor activity and speech, parietal lobe is responsible for touch and position sensation, occipital lobe for vision and temporal lobe for hearing.  

3 0
4 years ago
A fossil record for whales demonstrates the evolution from one whale into two new whale species. Why is this supporting evolutio
STatiana [176]
Because as natural selection occurs and species mate and create offspring this leads to a change in DNA which can lead to new species or evolutionists versions of that species
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What fuels we get energy from by burning them.
vovikov84 [41]

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Coal and oil (if there are two answers)

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