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Kazeer [188]
3 years ago
7

Which of the following is not true about red blood cells?

Biology
1 answer:
Mariulka [41]3 years ago
5 0

Mature DNA cells do NOT contain DNA.

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Complete the sentence: Ecosystem distribution
Step2247 [10]

Answer:

<em>Hypotheses may vary. Most students will probably state that ecosystems at </em>

<em>high altitudes will support little vegetation. </em>

Explanation:

Ecosystem distribution is different at different places. Regions at high elevations might usually have low varieties of plants and animals but it cannot be true for every ecosystem located as higher altitudes.

Some communities might be well adapted to live in the cold and hence progress rapidly.

3 0
3 years ago
What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plas
Yakvenalex [24]

Answer:

The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.

Explanation:

The Na/⁺K⁺ pump is an ATPase pump which is responsible for maintaining low Na⁺ and high K⁺ concentrations within the cytoplasm while maintaining high Na⁺ and low K⁺ concentrations in the extracellular fluid.

Since these two ions are moved against their concentration gradient, ATP hydrolysis is required to provide the energy for this process. This is done by moving in two K⁺ ions  inside while moving three Na⁺ ions outside the cell for every molecule of ATP hydrolysed to ADP and Pi.

If a competitive non-hydrolyzable analog of ATP is applied on the cytoplasmic side of a plasma membrane that contained a large concentration of the Na/⁺K⁺ pump, it will act by inhibiting the action of the Na/⁺K⁺ pump. This will result in an accumulation of Na⁺ ions inside the cell and lower than normal K⁺ ions concentration.

6 0
2 years ago
A/an _____ is an injury to a joint such as the ankle, knee, or wrist.​
777dan777 [17]
I think its strain or sprained
8 0
3 years ago
Fill in the blanks with the available words:
kiruha [24]

Answer:

all organism evolved on earth, and all are genetically related to one another. Species living under unusual conditions might defer more than others, though. We might also predict that the more similar the percentages of naturally occurring elements are in two species, the more closely related those two species are.

Explanation:

this is what i am assuming the answer could be :)

3 0
2 years ago
Glands that lack ducts and secrete hormones are called ________. glands that lack ducts and secrete hormones are called ________
Savatey [412]
Ductless glands is the word
6 0
2 years ago
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