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Semmy [17]
3 years ago
8

What substance does not come from petroleum

Biology
1 answer:
Artyom0805 [142]3 years ago
5 0
Many things don't come from petroleum.

-Crunchy Peanut Butter
-Red Delicious Apples
-Pink Quartz
-Wool Tube Socks

For a more specific answer, it would be best to ask a more specific question.
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if several pea plants with the TTYy are crossed withe genotype Ttyy, what percentage of the offspring will be expected to have t
galina1969 [7]
25% will be expected to have the TTYy combination.

Hope this helps!
4 0
2 years ago
Matt intends to throw a rock at jamal and hit jamal in the head. jamal is standing directly next to sally. matt hits sally in th
katen-ka-za [31]
Answer:

The options for this question are:

1. A negligent tort because Matt was careless in throwing the rock.
2. A negligent tort because he only intended to harm Jamal.
3. An accidental tort because he struck Sally by mistake.
4. An intentional tort because Matt intended to throw the rock and physical injury resulted.
5. Matt did not commit a tort against Sally because he only intended to strike Jamal with the rock

The best answer choice is:

An intentional tort because Matt intended to throw the rock and physical injury resulted.

Explanation:
If Matt originally wanted to hit Jamal with a rock in the head but instead hit Sally who is standing directly next to Jamal, then he committed an intentional tort. This kind of tort can be transferred as the tort easer knew certainly that his plan would result in inevitable consequences.<span>
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6 0
3 years ago
At one time, membrane biologists thought that transport proteins might act by binding a solute molecule or ion on one side of th
Ivahew [28]

Answer:

The process of passage of different molecules, solutes, and liquids, through the phospholipid bilayer in human cells, and really in all animal cells, is highly dependent on a tight coordination between chemical, and thermodynamic balances, that will collaborate in these elements being able to pass, or not pass, through a cell´s membrane, and activate other mechanisms within the cell when their passage is not possible. Unlike what was once believed, that transport proteins were like buses parked at the membrane and waiting to be loaded with molecules to later remove themselves from the membrane and carry their load into the cytoplasm, scientific research has found that this is definitely so, and that transport proteins do not come off the layer to transport  molecules. They are permanently anchored to the membrane and through a series of second messenger systems, energy produced by the passage of certain ions like potassium and sodium, and other such processes, these transport proteins become activated, allow the passage of molecules and change them in such a way that they can be taken into the cell in vesicles, or, they will anchor them to second messengers, who will be responsible for carrying the molecule inside.

From the list of words given and the two sentences down below, which are two reasons why the earlier believed models for transport proteins are not correct would be:

1. Integral membrane proteins are embedded stably in the membrane and protrude from one or both side based on their hydrophobic, or hydrophilic, regions. These sides will not switch because of the disbalance that would be created if the two sides had to be switched chemically to allow them to pass to the opposie sides.

2. For protein to traverse a membrane, movement of its hydrophilic regions through the interior of the membrane would be required, which would be highly endergonic and hence thermodynamically improbable.

5 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
MrMuchimi

Answer:

Denitrification = bacteria convert nitrates into nitrogen gas.

Denitrification occurs when nitrogen is removed from the soil and this happens when bacteria concert nitrites back to Nitrogen gas.

Nitrification = Bacteria convert ammonia to nitrites and nitrates.

Nitrification is the process by which bacteria concert ammonia made from ammonification into useful organic compounds like nitrites.

Nitrogen fixation = bacteria break down waste products and return nitrogen to the soil.

Nitrogen fixation is when bacteria return nitrogen to the soil by breaking down waste products that fall into the soil.

Ammonification = bacteria convert atmospheric nitrogen to ammonia.

During ammonification, bacteria converts nitrogen compounds to Ammonia or Ammonium.

Assimilation = Plants and animals take in and use nitrogen compounds.

Assimilation then occurs when plants take in these nitrogen compounds and use them. Animals will get these compounds by eating the plants.

6 0
2 years ago
Read 2 more answers
In a healthy person, the feces leaving the body contain very few undigested molecules from food. One major exception is cellulos
Drupady [299]
From this we can conclude that the human digestive system does not produce enzymes that can break down cellulose. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has come to your desired help.
8 0
2 years ago
Read 2 more answers
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