Why do erythrocytes swell and burst when placed in water? (A) Since water concentration is higher outside the cell, water moves inward by passive diffusion.
(B) Since hemoglobin concentration is higher inside the cell, hemoglobin moves outward by exocytosis.
(C) Since potassium ions are more concentrated inside the cells, potassium ions move outward by osmosis.
(D) Erythrocytes pump water inward by active transport to balance osmotic gradients.
(E) Water is a universal solvent and simply dissolves the erythrocyte membranes.

Answers

Answer 1

Answer: A.
There is more sodium inside the cell than outside. There is a saying that "water follows salt". It is found in the case of osmosis and the semipermeable membrane around the cell. In this case there is more salt inside so water will move inside. The cell can break with too much water.

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When an invasive species is introduced into a new habitat where it has no natural predators, it can quickly populate. Which best predicts the effect this will have on the native species of the habitat?A.
The native species will compete for resources in the habitat.

B.
The native species will thrive in the habitat.

C.
The native species will remove all of the resources in the habitat.

D.
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Answers

answer:

a. the native species will compete for resources in the habitat.

explanation:

since there are no predators for the introduced species to be monitored by, the native species will compete for resources that the introduced species is depleting.

Freshwater protists with two flagella that can be photosynthetic or heterotrophic are calledA. amoebas.
B. ciliates.
C. dinoflagellates.
D. euglenoids.

Answers

The correct answer should be euglenoids. This means that they can both produce food on their own using sun because they have chloroplasts and do photosynthesis, and they can feed on food produced by others if need be or if there's no exposure to sunlight. They are also known as Euglena and are very recognizable due to the whip that they have.

Which type of blood vessel carries blood away from the heart

Answers

Arteries carries blood away from the heart

Describe dominant allele????????

Answers

"One whose trait is always shows up in the organism when the allele is present".
pg.77

Beetle - Spider - Sparrow - Hawk. Which level of organism has the least energy available to it and why

Answers

The hawk because energy is lost at each stage of the food chain, and the hawk is the last stage. This means it doesn't get all the energy transferred to it.

I need help ASAP PLEASE

Answers

I'm not 100% completely sure on these answers, but I think 1 is the Rough Endoplasmic Reticulum, 2 is the Mitochondrion, 3 is the Chloroplast and 4 is the Cell Wall. Once again, not completely certain about my answers, but that is what I think. Hope this helped!

-TTL

TermDefinitioncell wallRigid layer that surrounds the plasma membrane of a plant cell; helps support and protect the cell; also characteristic of many prokaryotes.central vacuoleLarge saclike organelle in plant cells; stores substances such as water; helps keep plant tissues rigid.chloroplastOrganelle in the cells of plants and algae; site of photosynthesis.chromoplastPlastid that makes and stores pigments.grana(singular: granum): Stacks of thylakoid membranes within the chloroplast.leucoplastPlastid used for bulk storage of starch, lipid, or protein; also makes molecules such as fatty acids and many amino acids.plastidA group of closely related membrane-bound plant cell organelles; includes chloroplasts, chromoplasts and leucoplasts.stromaSpace outside the thylakoid membranes of a chloroplast; site of the Calvin cycle of photosynthesis.thylakoidSub-organelle within the chloroplast; site of photosynthesis.tonoplastMembrane that surrounds the central vacuole.photosynthesisProcess of using the energy in sunlight to make food (glucose).

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