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Lena [83]
3 years ago
11

PLEASE HELP ME WITH MY SCIENCE

Biology
2 answers:
Pachacha [2.7K]3 years ago
8 0
What is it?I can try and help my best.

Alexxandr [17]3 years ago
4 0
Ur answer is number 2 i'm almost sure of i
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Over a long period of time the process of deposition causes the formation of
kozerog [31]

Answer:

sedimentary rock

Explanation:

the process of deposition refers to rock and soil depositing itself onto a landform and hardening into rock, specifically sedimentary rock.

8 0
2 years ago
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The pKa of an acid depends partly on its environment. Predict the effect of each of the following environmental changes on the p
Galina-37 [17]
The pKa represents the pH of the medium at which the zwitterionic amino acid assumes most stable ionic form due to structural stabilization. As the pKa is dependent upon the environmental factors of the solution around the amino acids, a change in their structure and localization can cause change in the pKa of the protein. Thus, the answers can be found as below:

Part A: Decrease (As the lysine is basic in nature, it will tend to stabilize the electrostatic interaction and weak interactions between the acidic amino acids and hydrogen bonds in the viscinity, thus lowering the pH and hence pKa of the protein)

Part B: Increase (As the carboxyl group is acidic in nature, removal of it will tend to increase the pKa since the basic amino acids will tend to accumulate more negative charge in their viscinity)

Part C: Increase (As glutamic acid is an acidic amino acid, its shift from outside to a non-polar site will prevents its ionization and hence the pKa will tend to shift from slightly acidic to slightly basic, hence increase)
3 0
3 years ago
What is the function of the endoplasmic reticulum?
Eddi Din [679]
The rough endoplasmic reticulum also known as RER is covered in ribosomes and helps produce most of the proteins. Smooth endoplasmic reticulum also known as SER does not have these ribosomes, and it is almost solely for producing lipids.

Good luck :)
6 0
3 years ago
What two organelles are included in the endosymbiosis theory?
timofeeve [1]
Chloroplast and mitochondria. Because both organelles are roughly the same size and shape as bacteria, have their own double layer membrane, and mitochondria have dna, that they were engulfed by early cells and are now organelles.
5 0
2 years ago
Allen and andrew both have the same biological parents. Why do they not resemble either of there parents
taurus [48]
This can be because of their genetics. The siblings may not have inherited their parents looks, but maybe they inherited their grandparents looks, or even their aunts looks. This is all due to genetics. It's sort of the same thing, when two caucasian parents have an african-american child. That would be because somewhere along the family tree someone was african-american. 
Anyways, I hope this helps!

6 0
3 years ago
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