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nekit [7.7K]
3 years ago
8

What does learn by trial and error mean? (

Biology
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0
The answer is D: test possible choices and then avoid ones that are not desirable.
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3. What is the difference between saponifiable and nonsaponifiable lipids?
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Answer:

the difference is that unsaponifiable lipids do not contain fatty acids at least not as a component of the fundamental structure whereas saponifiable lipids do have fatty acids.

Explanation:

As a further explanation unsaponifiable lipids are lipids that do not contain fatty acids as components of the fundamental structure. On the other hand, complex also known as saponifiable lipids do contain fatty acids, and those fatty acids can be released in a process called saponification which is caused by alkaline hydrolysis.

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2 years ago
Which kingdom is known to contain organisms that have cells with no cell walls?
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Answer:

Animalia

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This is the animal kingdom, and animals do not have cell walls, only cell membranes. All other mentioned kingdoms do or might have cell walls.

8 0
3 years ago
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What is the main function of the human reproductive system?
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Google: <span>The female reproductive system has two functions: The first is to produce egg cells, and the second is to protect and nourish the offspring until birth. The male reproductive system has one function, and it is to produce and deposit sperm.</span>
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Petal is brightly coloured and scented to attract pollinating insects

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Stems support for the elevation of leaves,flowers and fruits and also transport fluids between roots and shoots in xylem and phloem

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