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zavuch27 [327]
4 years ago
10

Which is an adverse effect of a negative-growth population trend?

Biology
1 answer:
faust18 [17]4 years ago
5 0

Answer:

too few workers to support an aging population

Explanation:

According to nature, the cells reach a phase where most of the resources are exhausted in the body and aging kicks in. An increase in aging population would adversely affect the trend of population growth since most of these people are not able to work, look after themselves and therefore would require workers to look after them. When there are few worker to support the aging population, the population is affected because some  of them die due to starvation and emerging diseases.

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How to delete your own question on brainley???
sergeinik [125]
You can’t, i’ve tried before lol
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3 years ago
During which phase of respiration can the breath be held the longest?
Pachacha [2.7K]

Answer:

Inhalation.

Explanation:

Respiration may be defined as the process of exchange of gases between the body tissues, lungs and the outside environment. The oxygen is inhaled and carbon dioxide is exhaled out from the body.

Two phase of respiration are inhalation and exhalation. Inhalation is the the movement of oxygen inside the lungs and body tissues. The diaphragm contracts and moves downward which increases the space in chest cavity and the breathe can be held longest during this phase.

Thus, the answer is inhalation.

8 0
4 years ago
What is the argument against taking persistent vegetative state patients off of life support?
Leviafan [203]

Answer:

An argument could be that there have been many instances where people on life support or in a vegatative state have 'woken' up and gotten better after many years. So, taking someone off life saving machines could be taking away their chance of getting better and their chance of surviving. Since the person is not dead, some may even see it as murder.

Explanation:

umm I tried <3

3 0
3 years ago
A young animal has never had much energy. He is brought to a veterinarian for help and is sent to the animal hospital for some t
xz_007 [3.2K]

Answer:

A. His mitochondria lack the transport protein that moves pyruvate across the outer mitochondrial membrane.

Explanation:

Pyruvate is from the breakdown of carbohydrates such as glucose through glycolysis. Glucose enters the cytosol through specific transporters (the GLUT family) and is processed by one of several pathways depending on cellular requirements. Glycolysis occurs in the cytosol and produces a limited amount of ATP, but the end product is two 3-carbon molecules of pyruvate, which maybe diverted again into many pathways depending on the requirements of the cell. In aerobic conditions, pyruvate is primarily transported into the mitochondrial matrix and converted to acetyl-coenzyme A (acetyl-CoA) and carbon dioxide by the pyruvate dehydrogenase complex (PDC).

Initially it was proposed that pyruvate was able to cross the membrane in its undissociated (acid) form but evaluation of its biochemical properties show that it is largely in its ionic form within the cell and should therefore require a transporter.

Transport of pyruvate across the outer mitochondrial membrane appears to be easily accomplished via large non-selective channels such as voltage-dependent anion channels/porin, which enable passive diffusion. Indeed, deficiencies in these channels have been suggested to block pyruvate metabolism

7 0
3 years ago
In 2006, scientists discovered fossilized skeletons of an animal with several interesting features. Fossil evidence indicated th
vlada-n [284]

Answer:

The preferable statement will be - D.

D. They show a transitional form between fish and land-dwelling vertebrates.

Explanation:

From the given information we know that the fossil of that type of animal has scales, fins, gills, lungs, a full set of ribs, and limb bones.  

This indicates some things such as,

  • There is a high chance that the animal was capable of living in both land surface and water.
  • Scales, fins, and gills indicate that they were like fish or water vertebrates.
  • But lungs, a full set of ribs, and limb indicates that they are showing a transitional form between water and land-vertebrates.
8 0
3 years ago
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