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Whitepunk [10]
3 years ago
7

HELPPPP!!!! ASAPPPPPP!!!!!

Biology
2 answers:
Setler [38]3 years ago
8 0

Answer:

The path of blood through the heart begins with the right atrium receiving blood, which has circulated through most of the body. This blood is also relatively high in carbon dioxide, which is a product of metabolism in the tissues.

Explanation:

hey, hru

aev [14]3 years ago
6 0

Answer

im here for you

Explanation:

The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide

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What does the word "Cuneiform " means?
ki77a [65]

Answer:

It's an old writing system from ancient Mesopotamia.

Explanation:

If you check Wikipedia you'll see that cuneiform was a writing system from the sumerians. it comes from the Latin term that means wedge, which is kind of the tool they used back then to wedge shape clay pieces.

4 0
3 years ago
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A student performed an experiment with bags of dialysis tubing filled with distilled water to model the process of osmosis. Dial
Reil [10]

Answer:

Taking into account the principle of osmosis, the question that best addresses experimental design is  <em>How does the effect of environmental sucrose concentrations impact the  movement of water across a membrane?</em>

Explanation:

The experimental design of the student, made with dialysis bags and sucrose at different concentrations should recreate the principle of osmosis, of importance in living beings for organic homeostasis.

Osmosis consists of the movement of water - through a semi-permeable membrane - from a less concentrated solution to a higher concentration solution, following a gradient, to achieve balance.  

The student will observe in his experiment that water moves from the solution with less sucrose concentration to the higher concentration of sugar. Beakers with the highest concentration of sucrose will have the highest weight, due to the increase in liquid volume.

How does the effect of environmental sucrose concentrations impact the  movement of water across a membrane?

The experiment shows that:

  1. The water from the beaker with less sucrose concentration moved -through the dialysis tubes and the membrane- to the beaker containing the most concentrated sucrose.
  2. Different sucrose concentrations will attract different amounts of water, which influences the final weight of each container.

With this experiment the principle of osmosis is confirmed, where the concentration of a solute determines the amount of water that passes through a semipermeable membrane -following a concentration gradient- until equilibrium is reached.

Learn more:

brainly.com/question/1517477

7 0
3 years ago
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What is decreased when lactase is added to milk?
irinina [24]
The answer is A.
Lactose is known as milk sugars.
Therefore giving you your answer- sugars add sweetness.
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2. What does a cell need in order to live?
CaHeK987 [17]

Answer:

The most important things for a cell are oxygen in order to respire and Glucose, also for respiration. This is used in a process called glycolysis where the cell makes a chemical called ATP which is basically our energy. ... So basically a cell needs lots to stay alive.

Explanation:

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Compact, black, brittle coal is called _______.
Artist 52 [7]
That is Bituminous coal
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