The right answer is True.
The history of life on Earth shows a succession of fossil species during geological time, each species appearing and developing before disappearing. This is why fossils constitute an archive of earthly history and are used to establish the divisions of geological time.
To date the rock in which they are, fossils are not useful if they belong to a group or species that has had a very long life. On the other hand, those who have lived in very short time intervals are useful for dating because they represent a precise time. These fossils are called stratigraphic fossils.
To qualify as a stratigraphic fossil, a species must:
• have had a large geographic extension (allowing correlations),
• have existed for a short time at the geological time scale,
• have been abundant (a necessary condition for finding fossils)
For example, ammonites are used to date Jurassic and Cretaceous rocks.
Answer:
A red blood cell, sitting in the right atria of the heart is chocolate-brown in color since its a deoxygenated red blood cell with carbon dioxide rather than oxygen in its hemoglobin.
First
The tricuspid valve pumps it through the right ventricle
Secondly
pulmonary valve pumps it from the right ventricle to the pulmonary circulation.
Then
In the alveoli of the lungs, gas exchange occurs during pulmonary circulation
The end product is oxyhemoglobin( bright red colour) I.e oxygenated blood
The next step
pulmonary veins is the means whereby the red blood cell go to the left atria from the pulmonary circulation through the aortic valve
to mitral valve then to the aorta and systemic circulation
Therefore
oxygen is replaced by carbon dioxide during systemic circulation indicating a end to cellular respiration
Lastly
It's transported back to the right atrium of the heart completing the cardiac cycle.
Answer: synthesizing of complex molecules
Explanation:
During the synthesizing of complex substances (catabolism) energy is given off to the body to generate heat within the body
Antidiuretic hormone signals mammalian kidney epithelial cells to add more aquaporin molecules to the cell membrane which will lead to the following below:
- Water will move from filtrate into blood.
- Solute concentration in the filtrate will increase.
<h3>What is a Hormone?</h3>
This is referred to as a chemical messenger which is released into the bloodstream so as to control certain functions in the body system.
Antidiuretic hormone sends signals to the body to decrease water output which is done by signalling the mammalian kidney epithelial cells to add more aquaporin molecules to the cell membrane.
The aquaporin molecules are water channels which ensures that less urine is produced due to the small water content being present thereby making it the most appropriate choice.
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