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Dimas [21]
3 years ago
15

What are differences about Early earth and Modern earth?

Biology
1 answer:
aleksklad [387]3 years ago
5 0
Formation of the Earth's Atmosphere. The early Earth was very different from our Earth today. The early Earth experienced frequent impacts from asteroids and meteorites and had much more frequent volcanic eruptions. There was no life on Earth for the first billion years because the atmosphere was not suitable for life.
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A test that combines radioactive chemicals and antibodies to detect minute quantities of substances in a patient's blood?
nirvana33 [79]

Radioimmunoassay (RIA) is a test that combines radioactive chemicals and antibodies to detect minute quantities of substances in a patient's blood.

In 1959, biophysicist Rosalyn Yalow and physician Solomon A. Berson developed a sensitive method for measuring very small amounts of a substance in the blood called radioimmunoassay (RIA).

Radioimmunoassay (RIA) is a technique that make use of radioisotopes, usually iodine-125, as a tag or label for the detection of antigen. This technique determines the concentration of an antigen based on the competitive binding between radiolabeled and unlabeled antigen for its specific high affinity antibody.

It is very sensitive that it can measure concentrations up to 0.001 μg/ml.

To know more about radioimmunoassay: brainly.com/question/25654772

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5 0
1 year ago
Juan has collected a cricket. Which question can a dichotomous key help him
Lubov Fominskaja [6]
What species the cricket is
8 0
3 years ago
How mitochondra help a cell get the materials it needs?
fiasKO [112]

Answer:

The mitochondria is the power house of the cell it stores energy for the whole cell. :) hope this helps

Explanation:

8 0
1 year ago
1. Which of the following processes requires ATP?
Verizon [17]

Question 1. Which of the following processes requires ATP?

A.osmosis

B. facilitated diffusion

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Explanation:

7 0
3 years ago
What is it called when a substance provides a form of energy during a chemical change
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(I'm not real sure)
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