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Vilka [71]
3 years ago
7

Remains or traces of organisms preserved in rock are called _______.

Biology
2 answers:
FromTheMoon [43]3 years ago
4 0
Well Remains or traces of organisms preserved in rock are called fossils
vivado [14]3 years ago
3 0

the remains or traces of organisms preserved in the rock are called fossils

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I believe it’s A. Precipitation
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3 years ago
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Resethelp 1. Structure describes the alpha-helices and beta-sheets that are formed by hydrogen bonding between backbone atoms lo
ss7ja [257]

1. Answer;

-secondary structure;

Explanation;

Protein secondary structure refers to regular, repeated patterns of folding of the protein backbone. The two most common folding patterns are the alpha helix and the beta sheet. In an alpha helix, the polypeptide backbone coils around an imaginary helix axis in clockwise direction. In the beta sheet secondary structure, the polypeptide backbone is nearly fully extended. The R-groups are alternately pointed above and then below the extended backbone.

2. Answer;

- Quaternary structure

Explanation;

-Many proteins are formed from more than one polypeptide chain. The Quaternary structure describes the way in which the different subunits are packed together to form the overall structure of the protein. For example, the human hemoglobin molecule shown below is made of four subunits.

3. Answer;

-Tertiary structure

Explanation;

Tertiary structure refers to the overall folding of the entire polypeptide chain into a specific 3D shape. The tertiary structure of enzymes is often a compact, globular shape.

The tertiary structure is the structure at which polypeptide chains become functional. At this level, every protein has a specific three-dimensional shape and presents functional groups on its outer surface, allowing it to interact with other molecules, and giving it its unique function.

4. Answer;

Primary structure

Explanation;

-It is the simplest level of protein structure and is simply a sequence of amino acids in a polypeptide chain. For example, the hormone insulin has two polypeptide chains, A and B. Each chain has its own set of amino acids, assembled in a particular order. For instance, the sequence of the A chain starts with glycine at the N-terminus and ends with asparagine at the C-terminus, and is different from the sequence of the B chain.

7 0
3 years ago
Some isotopes of elements are unstable and decay into other, more stable isotopes over time. For example, it takes 153 years for
UkoKoshka [18]

Answer:

silicon-32

Explantion:   Silicon is a chemical element that has atomic number 14 and is located in group 14 in the periodic table. Silicon has 23 recognized isotopes, with mass numbers from 22 to 44. The oldest lived radioisotope is Silicon-32, and its half-life has been examined to be around 150 years. Silicon-32 is formed in the atmosphere by cosmic ray spallation of argon and is released on the surface of the earth in precipitation.

8 0
3 years ago
Question 8
Bumek [7]

Answer:

biomass

Explanation:

its biomass bc biomass is transferred thru each trophic level

I really hope this is right

5 0
3 years ago
How would the ecosystem’s carrying capacity for a species change, if the species cannot adapt to changes of habitat?
boyakko [2]
Well if it could not adapt it would die. Either it would be killed by a more superior species, natural selection would take its course, or it just wouldn't be able to survive.
7 0
3 years ago
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