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Travka [436]
3 years ago
6

Some forces act at a distance and thus do not require _______.

Biology
1 answer:
kiruha [24]3 years ago
3 0

Answer:

Contact

Explanation:

I hope this answer help you

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What specific type of experiment demonstrated that cadherins were sufficient to mediate cell-cell adhesion?
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Answer:

Answer is A. Expression of Cadherin gene in the cell that do not normally adhere to each other( or have low adhesion function).

Explanation:

Not that, the level of Cadherin expression influences the streght of adhesion and the type of Cadherin expressed, in determining the specificity and property of interaction.

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PLEASE HELP!!!! MULTIPLE CHOICE
sineoko [7]

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c

Explanation:

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Sergio [31]

Answer:

sour, corrosive

Explanation:

An acid is a substance that donates hydrogen ions. Because of this, in an acidic solution  there are more hydrogen ions than hydroxide ions. This means the more acidic a food is, the more hydrogen ions are available to trigger the sour taste receptors. A base is a substance that accepts hydrogen ions.

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3 years ago
Which statement is correct about a euglena and a white blood cell? (1 point) A euglena cannot survive on its own because it is j
Elina [12.6K]

Answer:

. A euglena survives on its own because it completes all life functions. A white blood cell cannot survive on its own because it is just one cell.

Explanation:

. A euglena survives on its own because it completes all life functions. A white blood cell cannot survive on its own because it is just one cell because A Euglena is a unicellular organism that can perform photosynthesis and complete cell activities. They live in fresh water, have eyespot, can excrete and have flagella for movement which are cellular activities

But a white blood cell cannot survive because it is one cell because it is produce from bone marrow and is a part of the immune system and work with other networks in the body system to fight against body infections.

3 0
3 years ago
How does oxygen move from the respiratory system to the circulatory
slamgirl [31]

Answer:

D. By diffusion across a capillary wall

Explanation:

D is the best answer because gas exchange takes place in our lungs. Our lungs have alveoli which have a network of tiny blood vessels called capillaries, here the O2 diffuses the capillary wall to enter the bloodstream, and similarly CO2 diffuses out and we exhale it our from our lungs.

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