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snow_tiger [21]
3 years ago
6

A family takes its summer vacation at a beach resort. Six-year-old Timmy spends the entire morning in a swimming pool. When his

mother finally gets him out and dries him off, she remarks that his fingers and toes are "wrinkled up just like a prune." Prunes start their lives as plums. They get their characteristic wrinkles by dehydration. Sitting for hours in water is anything except dehydration. How can you solve this mystery? Use the Internet to investigate the wrinkling of a prune and the wrinkling of the skin when it is immersed in water. Be sure to relate your discussion of this topic to the process of osmosis.
Biology
1 answer:
Kitty [74]3 years ago
8 0

Water diffuses into the skin via sweat ducts which alters the electrolyte balance. electrolytes can be salts like sodium and potassium. This alters the stability of neurons causing blood vessels to constrict therefore decreasing the amount of fluid in the fingers which would normally give the skin tension. The decrease causes wrinkles.
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never [62]
An autotroph produces its own food while a hetertroph has to find it/hunt for it/gather it
Examples~ 
Autotroph-Sunflower
Heterotroph-Wolf
5 0
3 years ago
PLS HELP ASAP If an animal cell wasn't in an isotonic solution, wouldn't active transport be able to balance the cell's volume?
ohaa [14]

Answer:

Animal cells tend to do best in an isotonic environment, plant cells tend to do best in

a hypotonic environment. This is demonstrated in the attached PDF.

Explanation:

A cell that does not have a rigid cell wall, such as a red blood cell, will swell and lyse (burst)  when placed in a hypotonic solution, a process called cytolysis. Cells with a cell wall will swell when placed in a hypotonic solution, but once the cell is turgid (firm), the tough cell wall prevents any more water from entering the cell. When placed in a hypertonic solution, a cell without a cell wall will lose water to the environment, shrivel, and probably die. In a hypertonic solution, a cell with a cell wall will lose water too. The plasma membrane pulls away from the cell wall as it shrivels, a process called plasmolysis.

I hope this helps. If not I am really sorry!

Download pdf
7 0
3 years ago
A single motor neuron together with all the skeletal muscle fibers it innervates is called a:_______.
Sladkaya [172]

Answer:

d. a motor unit

Explanation:

8 0
3 years ago
What do psychologist call a relatively permanent change in behavior or knowledge
Llana [10]

Answer:

operant conditioning

Explanation:

In operant conditioning, organisms learn to associate events that repeatedly happen together. The word "operant" should be changed to the word "classical." any relatively permanent change in behavior brought about by experience or practice.

hope it helps : )

please mark me brainliest

5 0
3 years ago
HELP?! <br> What is the last step in the cell cycle?
nikklg [1K]

Answer:

Death I guess?

Sorry for wasting ur points, u can report this if u want

5 0
2 years ago
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