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Mashcka [7]
3 years ago
7

How does radioactive dating help scientists figure out dinosaurs extinction?​

Biology
1 answer:
daser333 [38]3 years ago
4 0
By using radiometric dating to determine the age of igneous brackets, researchers can accurately determine the age of the sedimentary layers between them. Using the basic ideas of bracketing and radiometric dating, researchers have determined the age of rock layers all over the world.
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Cross a Heterozygous Type A with a Heterozygous Type B? What genetic terms best describes the genotypes of the offspring?
ahrayia [7]
Draw a box. On the vertical side of the box write A and O

On the horizontal side write B and O

Take each letter and combine it with the two letters in the other plane and write them in the box.

AB AO OB OO and BA BO OA OO

Knowing that the A and B genes are dominant … you get the following children probabilities:

AO OA are A’s

OB BO are B’s

AB BA are AB’s

OO and OO are O’s

THE TWO PARENTS CAN PRODUCE all the blood types of the ABO SYSTEM.
6 0
3 years ago
the information for folding proteins into secondary and tertiary structures is present within its amino acid sequence. do you th
marshall27 [118]

Secondary structure is created when a polypeptide chain folds as a result of a contact between the carbonyl group and the peptide linkage's N-H group. The given statement is True.

These proteins have the ability to fold themselves, thus their amino acid sequences must have all the necessary information. Peptide bonds are created when amino acids condense to form protein structures. The main structure of a protein is its arrangement of amino acids.

The dihedral angles of the peptide bonds determine the secondary structure, while the folding of protein chains in space determines the tertiary structure.

A peptide bond is a covalent connection that occurs when an amino acid's  α-amino group and carboxyl group are joined together without the need of water.

To learn more about protein click here,

brainly.com/question/17095120

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6 0
1 year ago
A student makes the statement to a colleague, "Blood plasma is essentially just a carrier for the formed cells like red blood ce
Rina8888 [55]

Answer:

Plasma plays an essential role of transporting nutrients and waste.

Explanation:

The largest constituent of the blood that comprises 55 percent of its entire constituents is the plasma. It is a light yellow liquid, which along with water transports enzymes and salts to different parts of the body. Plasma primarily plays an essential role in transporting hormones, nutrients, and proteins to different body parts.  

Apart from this, plasma also carries waste materials withdrawn from the cells and discharges it out of the body.  

8 0
3 years ago
Which shows the correct order in which food moves during digestion
vesna_86 [32]
The answer is the Stomach, Small intestine, then Large Intestine
3 0
3 years ago
Read 2 more answers
At which point in the graph is the population growth rate
nataly862011 [7]

point b i think, because you have to see the amount of steepness in the slope.

7 0
3 years ago
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