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3 years ago

Why do water molecules "stick together"?

Biology

2 answers:

pshichka [43]3 years ago

4 0

Because of the presence of hydrogen bonds

Art [367]3 years ago

3 0

Answer:

Water molecules tend to stick together due to the structure and charge of the atoms present in the water. Hydrogen atoms are positively charged while oxygen atoms are negatively charged. ... All water molecules are exerting cohesive forces on all the molecules around them including those on the surface of a body of water

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A young woman was brought into the emergency room because of repeated seizures. her roommate said that the woman had taken the d

meriva

Electrolyte imbalance can affect the normal function of the brain. Sodium is an important electrolyte maintains homeostasis in the body. Its primary function is to regulate water retention. Low sodium usually decreases serum osmolality. This combination of deficiencies is called Hypotonic hyponatremia.

A sudden drop in sodium and plasma osmolality can cause seizures. Brain function is affected because the water in the body, because start to flow from the extracellular spaces into the intercellular spaces. This causes the brain cells to swell and thus affecting its normal function.

Therapy for this type is IV therapy, particularly hypertonic saline to replace the sodium in the body and normalize plasma osmolality and diuretics are given to aid in water excretion. Therapy should be done slowly and should be closely monitored. More swelling can developed when it is done too quickly.

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3 years ago

How is cytokinesis different in animals and plants? Animal cells get pinched into two daughter cells by the cell membrane; the p

jasenka [17]

<h2>Let's review what cytokinesis is first.</h2>

Cytokensis is the physical process of cell division. It divides the cytoplasm of a parental cell into two different daughter cells.

In plants, a cell wall forms. Cytokensis occurs in mitosis and meiosis. The objective for cytokensis is to divide the parent cell into two daughter cells. So cytokensis in plants is when a cell wall forms in between the daughter cells. Plant cells have walls, so they CANNOT divide using a cleavage furrow. A cell plate forms across the cell during telophase.

In animal cells, cleavage furrow forms. This pinches the cell in half and forms two different cells.

A cleavage furrow is an indentation that appears in the cells surface when the cell is preparing to divide.

So, let's review our options:

A: Animal cells get pinched into two daughter cells by the cell membrane; the plant cell has to form a cell plate before it can create daughter cells.

This would be the correct answer. The only main difference between animal cell cytokensis vs plant cell cytokensis is the cell wall that animal cells lack. Animal cells get pinched into two daughter cells, by the cleavage furrow in the cell membrane, while the plant cell has to form a cell plate before it can create daughter cells.

B: Animal cells give daughter cells a full set of chromosomes at the time of division; plant cells give daughter cells a half set of chromosomes. .

This can be disproven. In meosis, a cell divides into four cells that have half the number of chromosomes. In mitosis, all chromosomes are kept. Both Plant & Animal cells both reproduce using both both meosis and mitosis, so this option is irrelevant.

C: Animal cells require an extra grow phase before cytokensis; plant cells move straight to cytokensis.

Both animal cells and plant cells have the same amount of "grow phases" before cytokensis. This option is irrelevant.

D: Animal cells begin cytokensis during anaphase, plant cells begin around the same time as telophase.

They both begin during the same time. This option is also irrelevant.

8 0

3 years ago

Read 2 more answers

(Drag each tile to the correct location.)

Greeley [361]

Explanation:

A tentative statement used to guide scientific investigations – scientific hypothesis

Makes predictions about future events – Scientific hypothesis

Can be tested by many independent researchers – Scientific hypothesis

Based on observations of natural phenomena – scientific hypothesis and theory both.

A well-established, highly reliable explanation – scientific theory

3 0

3 years ago

How is the universe organized into systems and galaxies

jonny [76]

The universe contains organized structures on all different scales, from small systems like the earth and our solar system, to galaxies that contain trillions of stars, and finally extremely large structures that contain billions of galaxies.

Please give Brainliest or thanks

6 0

3 years ago

What are the characteristics of an indicator species

LenKa [72]

An indicator species is an organism whose presence, absence or abundance reflects a specific environmental condition. Indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem.

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3 years ago