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inna [77]
3 years ago
5

Jill stepped on a tack. Which part of the central nervous system caused her foot to move off the tack quickly in a reflex respon

se?
Biology
2 answers:
Mkey [24]3 years ago
3 0
The danger receptor is called nociceptor; this signals the brain to pull the injured part away from danger. Signal travels to the posterior or dorsal horn of spinal cord.
Kamila [148]3 years ago
3 0

Answer: spinal cord

Explanation:

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How does the sun’s average density compare to water’s density?
77julia77 [94]

Answer:

The suns average density is greater than water's.

Density (avg) of the sun: 1.4 g/cm

Density of H20: 1.0 g/cm

Have a good day!

7 0
3 years ago
Assume that you have an illuminated suspension of Chlorella cells carrying out photosynthesis in the presence of 0.1% carbon dio
goldenfox [79]

Answer:

a. PGA down, RuBP up

Explanation:

RuBP, also known as Ribulose-1,5-bisphosphate is a molecule that assist in he fixation of carbon dioxide in the Calvin Cycle or light independent reaction of photosynthesis.

RuBP is combined with carbon dioxide using the enzyme known as rubisco to form an short-lived intermediate product which divides to form two 3-carbon molecule structure known as 3-phosphoglycerate.

<em>If the concentration of carbon dioxide is suddenly reduced, it thus means that the rate of production of 3-phosphoglycerate will reduce as carbon dioxide becomes a limiting factor. Hence, 3-phosphoglycerate's  concentration will reduce while more RuBP will become available as a result.</em>

The correct option is a.

3 0
3 years ago
Bed Bugs belong to which of the following groups (taxa)? (select all choices that are correct)
kotegsom [21]

Answer:

Bed bugs belong to the Cimicidae family (that's Latin for bloodsucking wingless bugs). They come in the order of Hemiptera.

7 0
2 years ago
If a mutation occurs such that photosystem ii no longer functions as efficiently as it should, what might be most directly affec
ivolga24 [154]

Out of the following given choices;

a) The amount of oxygen produced

b) The rate of ATP synthesis by ATP synthase in the chloroplast

c) The rate at which NADPH is produced

d) The rate at which the protons are transported into the thylakoid

The answer is; A

The photosystem captures energy from sunlight and uses it to split a water molecule.   After splitting the water molecule (by taking an electron), the protein complex transports the electron to plastoquinone. The splitting of water molecules results in evolving of oxygen molecules. The hydrogen is what is used to reduce carbon dioxide to glucose.


5 0
3 years ago
Read 2 more answers
Why do salmon go to feed in the ocean ?
gladu [14]
Adult Atlantic Salmon<span> live in coastal seas and </span>feed<span> on pelagic invertebrates ... The Atlantic </span>Salmon<span> is an iconic species in the north Atlantic </span>Ocean<span> and ... Unlike the pacific </span>salmons<span> (such as the Chinook</span>Salmon<span> [link]), Atlantic </span>Salmon do<span> not die after ... subpopulations that spawn in those rivers will almost certainly </span>go<span> extinct.</span>
4 0
3 years ago
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