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Dominik [7]
3 years ago
13

When completing the water properties lab, which property of water was reasonable for the water molecules sticking to the penny?

Biology
1 answer:
BaLLatris [955]3 years ago
8 0

Answer:

Water has adhesive force between it's molecules and the penny s molecules

Explanation:

Hope it helps

You might be interested in
Which statement about natural selection is true? (1 point)
Aliun [14]

Answer:

B

Explanation:

The whole point of natural selection is for animals to compete to survive in that specific environment

Hope this helps!

7 0
2 years ago
Which of these phylogenetic trees depicts a different evolutionary history than the others?
scoray [572]

Answer:

Tree 3

Explanation:

5 0
2 years ago
What 4 things can affect the way enzymes work? Explain how each thing affects an enzyme
nadya68 [22]

Answer

temperature, ph, concentration and enzyme substrate

Explanation

Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate. Changing the pH outside of this range will slow enzyme activity.

Enzymes will work best if there is plenty of substrate

3 0
2 years ago
What are the parts of animal cell and what are their function?​
Ainat [17]

Answer:

mitochondrion

endoplasmic reticulum

cytoplasm

cell membrane

centrioles

vacuole

Explanation:

  1. mitochondria; site of chemical energy conservation for cell activity
  2. Endoplasmic reticulum (ER); Distribution of protein and other materials through out the cell
  3. vacuole; for food or water storage
  4. centrioles: for cell division
  5. cell membrane; prevent cell content from escaping

4 0
2 years ago
At a PO₂ of 70 mm Hg and normal temperature and pH, hemoglobin is ________% saturated with oxygen. At a PO₂ of 70 mm Hg and norm
Arturiano [62]

Answer:

D) over 90

Explanation:

As we know, hemoglobin is the protein found in red blood cells that is in charge of oxygen transportation, and the relation between the percentage of oxygen that binds to hemoglobin and the partial pressure of oxygen in the blood can be represented through the oxygen - hemoglobin dissociation curve, as shown in the attached image.

As we can see in the image, the curve has a sigmoid shape, and this is due to the allosteric interactions between the subunits of the hemoglobin, which change their conformation with each oxygen molecule that binds in order to increase even more the oxgen affinity. This curve is constantly shifting to the right and to the left depending on the conditions of the blood, like temperature, pH, partial pressure of carbon dioxide and the concentration of diphosphoglycerate (DPG).

When the PO2 is around 70 mmHg, as we can see in the curve, the hemoglobin is saturated around 90% or more, reaching a plateu in the curve where the oxygen is not binding as fast anymore, because there are almost no more free binding sites left in the hemoglobin molecule.

4 0
3 years ago
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