BIOLOGY HIGH SCHOOL

At present, cosmologists expect the universe to _____.

Answers

Answer 1
Answer: The answer is to continue expanding.

Cosmology is study of the origin and evolution of the universe. Currently, cosmologists expect the universe to continue expanding indefinitely and probably heating up. The expansion is speeding up. Also, it is expected that entropy will increase leaving no free energy in the Universe.
Answer 2
Answer:

Answer:

gradually stop its expansion and then remain at a constant size

Explanation:

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What is the role of ADH (antidiuretic hormone) in regulating salt and water concentrations in the blood?A. It detects a high concentration of salts in the blood and signals the pituitary glands to release more water into the blood. B. It prompts the kidneys to reabsorb more water into the bloodstream to dilute the salts. C. It inhibits the skin to sweat. This retains more water into the bloodstream to dilute the salts.
A type of cell division that results in two daughter cells that are exactly the same as the original cell is _____? Cell regeneration?Diffusion?Osmosis?Or Mitosis?
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What happens to an enzyme's structure as it exceeds the typical human body temperatur?

Answers

Answer;

The enzyme structure begins to break downintermolecular bonds are broken

enzyme molecules gain kinetic energy.


Explanation;

Enzymes are proteins that play an important function in the body of catalyzing reactions in the body.

Enzymes work best at optimum temperature; low temperature lower than optimum temperatures deactivates them and higher temperature denatures them.

The shape of an enzyme depends on its temperature; when they get too warm they get loose, and at very low temperatures they get too tight. At optimum temperature or at the right temperature then they are just at the right shape and the chemical reactions they catalyze will be at optimal rate.

(a) It is possible to measure a patient’s heart rate by either palpating their peripheral pulse, by observing their ECG, or by listening for the lub-dup through a stethoscope. However, patients with atherosclerosis of the femoral artery may not have a pulse in the popliteal artery or dorsalis pedis of the foot. Does this mean that they will also lack a heart beat (lub-dup) or QRS complex? Explain the relationship between a heart beat, pulse, and QRS complex. (B) Why is there a delay between systole of the ECG and the resulting pulse felt in the finger (R-Pulse)?

Answers

b)When you listen to the heart sounds, you are hearing the flow of blood which stops abruptly when a heart valve closes. This produces the "lub-dub" sounds. 1st heart sound (when the Mitral Valve closes) as the ventricle contracts (systole) and then 2nd heart sound (when the Aortic Valve closes) and the ventricle starts to fill again (diastole)
The pulse is the wave of pressure you can feel through the artery walls. This denotes systole.
The ECG's QRS complex is the electrical signal that tells the Ventricles to contract. You can see that the QRS occurs right at the beginning of systole and triggers Isovolumetric contraction.
So the QRS on the ECG, the pulse wave you can feel (ie. the rise in aortic pressure) and the 1st heart sound all signify SYSTOLE.
there a delay between systole of the ECG and the resulting pulse felt in the finger (R-Pulse) because it takes a little bit of time for the pressure to transmit through the body, as the finger is not on the heart (if it was there would be no delay)

Which of the following pairs of organisms are primary consumers?A.snakes and foxes

B. rabbits and elephants

C. hawks and vultures

D. oak trees and ferns

Answers

The primaryconsumer among the given ones are rabbits and elephants. The correct option is B.

What is primary consumer?

An organism that continues to feed on primaryproducers is referred to as a primary consumer.

This type of organism constitutes the second trophic level and is consumed or actually predates by secondary consumers, tertiary consumers, or top predators.

Primary consumers play an important role in ecosystems. They aid in the transfer of energy within an ecosystem, which is necessary for the ecosystem to maintain its balance and avoid collapse.

The second trophic level is comprised up of primaryconsumers. They are also known as herbivores. They only eat primary producers like plants or algae.

A rabbit, elephant, or grasshopper living in the Everglades, for example, is a primaryconsumer.

Thus, the correct option is B.

For more details regarding primary consumer, visit:

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The pair that are primary consumers are rabbits and elephants. Primary consumers are the herbivores (or in some cases, omnivores), while the secondary ones are the carnivores that prey on them. For example, a mouse is a target for snakes.

What happens to the carbon dioxide which collected in human tissues?

Answers

Carbon dioxide in the tissues is produced as the result of oxidation of glucose...
This carbon dioxide in process of respiration diffuse out of the tissues in form of molecular carbon dioxide and join with water forming carbonic acid ...
In lungs again carbon dioxide is separated and released out of the body...

both algae and the fungus are benefited from their relationship in a lichen. this relationship is one of

Answers

Answer: The correct answer is- This relationship is one of example of  mutualism.

Mutualism can be described as a biological interaction between two species that live in close association with each other in a way that both the partners are benefited from each other. It is a type of symbiotic relationship.

Lichen shows mutualistic relationship between algae and fungus, where photosynthetic algae provides food source to the fungi and fungi in return provides protection to algae as well as provides nutrients from the surrounding.

Thus, it is an example of mutualism.
mutualism. a type of symbiotic relationship.

What are the main greenhouse gases?

Answers

Water vapor (important), ozone, carbon dioxide, methane, andnitrous oxide,

Answer:

Water vapor (important), ozone, carbon dioxide, methane, andnitrous oxide,

Explanation:

doing the quiz :)
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