answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mariarad [96]
1 year ago
10

What uses mutation rates in dna to estimate the time that two species have been evolving independently.?

Biology
1 answer:
pashok25 [27]1 year ago
7 0
Hi, the answer to this question would be an Molecular Clock. A molecular clock is a technique used by researchers that uses mutation rates in DNA to estimate the length of time that two species have been evolving independtly. Hope this helped :)
You might be interested in
Human blood types are characterized by the presence absence of surface markers known as a tigers on the surface of red blood cel
zalisa [80]

Answer:

characterized by presence or absence of antigens

the blood types are A, B, O, AB

Explanation:

There are two antigens and two antibodies that are mostly responsible for the ABO types.  The specific combination of these four components determines an individual's type in most cases. Erythrocytes and serum were related to the presence of antigens on these erythrocytes and antibodies in the serum. these antigens  are A and B, and depending upon which antigen the erythrocytes express, blood either belonged to blood group A or blood group B. A third blood group contained erythrocytes that reacted as if they lacked the properties of A and B, and this group was later called "O" blood group. The fourth blood group AB, was added to the ABO blood group system. These erythrocytes expressed both A and B antigens.

Blood group   Antigen present on RBC    Antibodies in serum    Genotype(s)

      A                        antigen A                             anti-B                     AA or AO

      B                        antigen B                             anti-A                     BB or BO

      AB              both A and B antigen                 none                         AB

      O                           none                           anti-A and anti-B           OO

4 0
2 years ago
Eva is performing an experiment to determine which type of disinfectant kills the most bacteria. She has six plates of the same
guapka [62]

Answer:

Effect of independent variable is studied on the dependent variable or subject of the experiment.

Explanation:

The independent variables are very important in an experiment. Basically the affect of an independent variable is studied on the subject or dependent variable.

Thus, it can be said that independent variable will produce the effect on the dependent variable.

Here in this case the different types of disinfectants are the independent variable and their effect will be  observed on the bacteria (subject or dependent variable)

4 0
2 years ago
Read 2 more answers
A student use colored balls and sticks to make a model of the compound ammonia. Below is a picture of the model. What kind of mo
ahrayia [7]

Answer:  

i'm sure is B

Explanation:

8 0
2 years ago
Read 2 more answers
Even though a motion picture actually consists of a series of still frames, we perceive them conveying continuous movement. This
zloy xaker [14]

Answer:

Even though a motion picture actually consists of a series of still frames, we perceive them conveying continuous movement. This is an example of stroboscopic effect.

Explanation:

The stroboscopic effect is caused by aliasing which leads to different signals to become identical when sampled.

7 0
2 years ago
Read 2 more answers
You find a fossil that you think is about 350 million years old. You decide to use 235U to date a volcanic ash bed just below th
devlian [24]

Answer:

I would expect that the sample has only 50% of the original 235 U.

Explanation:

That is because 235 U has a half-life of 700 million years and I expect that my sample be 350 million years old. 350 is half of 700.

8 0
2 years ago
Other questions:
  • Dolphins are really whales what is the sentence pattern?
    8·2 answers
  • suppose that the continuous column of water molecules moving upward through the plant is broken near part B, and a small air poc
    15·2 answers
  • Digestion of food utilizes enzymes that catalyze _____ reactions.
    5·1 answer
  • A decrease in the grass population will most immediately decrease the available energy for the
    5·1 answer
  • "botox injections smooth facial wrinkles because _____ is an acetylcholine antagonist that blocks the underlying facial muscles.
    5·2 answers
  • Complete hydrolysis of a glycerophospholipid yields glycerol, two fatty acids (18:2(δ9,12) and 18:0), phosphoric acid, and choli
    12·2 answers
  • In terms of its tissue classification, blood is classified as a ____(1)______tissue because it’s extracellular matrix determines
    7·2 answers
  • Which statement best describes how waves carry energy?
    8·2 answers
  • Students were divided into two groups to watch a set of comedians. Group A watched the comedians as a large group and then rated
    12·2 answers
  • Special lymphatic vessels, called lacteals, absorb dietary __________ that are not absorbed by the blood capillaries.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!