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yawa3891 [41]
3 years ago
10

Describe the fossil record

Biology
1 answer:
beks73 [17]3 years ago
8 0

The Fossil record is the history of life as documented by fossils, the remains or imprints of the organisms from earlier geological periods preserved in sedimentary rock.

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What is the relationship between "seeing" with the eye and "perciving" with the brain
NISA [10]

Answer:

Our eyes can trick our brain in some manner. When the eye see an image, our brain assumes that the image being seen is a image which had been seen in the past. Therefore, our brain is tricked into believing that the image which is being seen is of something which has been visualized before whereas in actual it is a new image. Hence, this is the relationship between seeing of the eyes and perceiving of the brain.

3 0
3 years ago
What is a bathyscaphe?
Dafna11 [192]
<span>I believe the answer is this:
A free-diving vessel used to explore the ocean at great depths.
Hope this helps.</span>
7 0
3 years ago
Read 2 more answers
What are the smallest blood cells in the frog?
Tamiku [17]

Answer:

Unlike typical mammalian red blood cells, those from amphibians, such as frogs, contain a DNA-bearing nucleus that is visible in the center of the cell. The circulatory system of amphibians is rather unusual, their hearts having three chambers, two atria, and a single ventricle.

NegativePositive

Positive

The design of the amphibian circulatory system is curious because blood accumulates oxygen in the lungs and is then returned to the heart before being pumped into the rest of the circulatory system. Therefore, a mixing between oxygenated and deoxygenated blood occurs as blood returning to the heart from the lungs is mixed with incoming blood from the body. Frogs handle this situation by having a very slow metabolism and by absorbing some oxygen through their skin. In addition, the ventricle does have some directional control over the distribution of the blood.

Negative

The presence of a nucleus in amphibian red blood cells allows researchers easy access to large quantities of amphibian DNA. Frog blood has both a solid and a liquid portion. The liquid plasma carries solid elements such as red and white blood cells. Blood can be collected from frogs and the red blood cells isolated by centrifugation. After removal of the residual plasma, purified cells can be treated with specific enzymes and detergents to digest the cellular envelope and release DNA from its protein complex. The DNA is then useful for scientific studies and experiments.

Featured in: Phase Contrast

Explanation:

4 0
3 years ago
What is the 95% CI for data set 2?
vesna_86 [32]

Answer: 20 ± 11.32

Explanation: <u>Confidence</u> <u>Interval</u> (CI) is an interval of values where there is a % certainty the true mean value lies in. For example, a 95% CI means there is a 95% certainty the true mean value lies in the interval.

For the data set 2, z-value for 95% confidence interval is z = 1.96

Formula to calculate CI is

x ± z\frac{s}{\sqrt{n} }

where

x is mean

z is z-value

s is standard deviation

n is the sample number

Then:

20 ± 1.96\frac{10}{\sqrt{3} }

20 ± 1.96\frac{10}{1.7320}

20 ± \frac{19.6}{1.7320}

20 ± 11.32

The 95% CI is 20 ± 11.32, which means there is a 95% certainty the true value is between 8.68 and 31.32.

8 0
3 years ago
When tumor cell DNA is examined from people at different stages of the same cancer type, mutations that are common to all of the
Travka [436]

The correct answer s act late in the disease.

Disease:

  • When tumor DNA is studied from cancer patients at various stages, the mutation will be comparable in all of them. Tumor DNA is frequently identified in the blood stream.
  • Disease is any adverse variation from an organism's normal structural or functional condition that is typically accompanied by a set of symptoms and is distinct from physical injury in origin.
  • illnesses. An abnormal state of an organism that interferes with its normal bodily functioning, frequently causes pain and weakness, and is typically accompanied by symptoms and indicators.
  • Disorders produced by organisms, infectious diseases are those caused by microorganisms such bacteria, viruses, fungi, or parasites. Numerous species live inside of our bodies. They are generally advantageous or even secure. But in specific circumstances, some bacteria have the capacity to cause disease.

Learn more about disease  here brainly.com/question/19813896

#SPJ4

5 0
2 years ago
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