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olga2289 [7]
3 years ago
12

Question 8 of 25

Biology
2 answers:
elena55 [62]3 years ago
7 0

Answer:

B, Seeds

Explanation:

SCORPION-xisa [38]3 years ago
4 0

Answer:

f

Explanation:

c

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In humans, oxygen is effectively delivered to the tissues because of the presence of several allosteric modulators. name three o
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<span>Els moduladors al·lostèrics que actuen en els humans són el 2,3-Bisfosfoglicerat (2-3-BPG),el CO2 i els H+ . El 2,3-BPG s'uneix al centre del tetrà mer de l'estat T i així l'estabilitzà launió per interaccions iòniques. Els protons actuen perquè quan el pH és baix l'hemoglobinadisminueix la seva afinitat per l'oxigen (efecte Bohr). L'augment de la concentració del CO2 té el mateix efecte perquè el CO2 es combina en H2O i es dissocia en HCO3-i H+ i per aixòdisminueix l'afinitat de l'hemoglobina perquè augmenta la concentració de protons</span>
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A student is constructing an explanation of the cycling of matter in and out of a plant during photosynthesis. Which statement w
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The answer is A because that’s the only thing plants “breath”
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3 years ago
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Which of the following describes tight junctions?
vampirchik [111]

A.

Tight junctions are <u>cell junctions in areas that are subjected to great mechanical stress, such as the skin and heart muscles</u>

Explanation:

They are also called <u>exclusion junctions</u>. This is because they form very tight junctions between adjacent cells such that only very small molecules, like ions, can pass in between the intercellular spaces of the cells. This is why they are found in regions where very little leakage is needed such as the heart -where blood could leak out during pumping- or the skin where foreign material cannot be allowed into the body.

They are also favorable in high stress regions because they bound cells together giving them structural integrity because they limit the movement of cells and their membrane intergral proteins.

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Ed biked home from school in 400 seconds. His home is located 2000 m south of the school. What was his velocity?
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V = m/s
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What drives motility in sporozoa?
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Sporozoa are non motile organisms.

<h3>What do you mean by sporozoa and why they are non motile?</h3>

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Sporozoa do not have flagella or cillia for locomotion. So, they are non motile .

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