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horsena [70]
3 years ago
12

Which of the following stars will live for the longest period of time? A) A huge star B) A medium sized star C) A blackhole D) A

small star
Biology
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

A

Explanation:

"A red dwarf, which is half as massive as the sun, can last 80 to 100 billion years, which is far longer than the universe's age of 13.8 billion years. (This long lifetime is one reason red dwarfs are considered to be good sources for planets hosting life, because they are stable for such a long time.)"

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the biological species concept proposed by states that a biological species is a population whose members can interbreed and pro
jek_recluse [69]

The biological species concept proposed by Mayr states that a biological species is a population whose members can interbreed and produce fertile offspring.

<h3>What is the biological species concept?</h3>

The biological species concept is a model used in biology sciences to delimit a species through mating fertile features of the individual that belong to such species.

This concept (biological species concept) was proposed by Ernst Mayr to understand how each species represent a functional unit.

In conclusion, the biological species concept was proposed by Mayr and states that a biological species is a population whose members can interbreed and produce fertile offspring.

Complete question:

Fill the blank. The biological species concept proposed by ______ states that a biological species is a population whose members can interbreed and produce fertile offspring.

Learn more about the biological species concept here:

brainly.com/question/985104

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4 0
2 years ago
What is the nurse's priority intervention when preparing for admission of a child with acute laryngotracheobronchitis? -p=[?
andriy [413]
<span>Laryngotracheobronchitis or croup is a disease that caused by viral infection. The virus could be influenza or parainfluenza virus. The infection will cause edema of the trachea and might obstruct the airway, causing difficulty in breathing.
</span>In this case, nurse should take attention to the patient airway and breathing. Patient with dypneu should be given oxygen and racemic epinephrine nebulized. Corticosteroid also help to reduce the swelling such as dexamethasome or budesonide inhalation.
3 0
3 years ago
Which of the following is not a source of groundwater pollution? A.landfills b.septic tanks c.smoke stacks d.fertilizer
Crank

The correct answer is c. smoke stacks.

Smoke stacks are chimneys or funnel shaped structures which emit smoke from a factory, vehicles and industrial set ups. Smoke stacks mostly discharge carbon dioxide and water vapor and oxides of nitrogen into the atmosphere. The exhaust released from smoke stacks cause air pollution. Air pollution can cause ailments like asthma and cancer. Thus, smoke stacks are not a source of water pollution.  

8 0
3 years ago
Why don’t recessive traits always eventually disappear from populations?
Iteru [2.4K]
Because the recessive trait might not show, but its there, lets say B is brown eyes and b is blue eyes, BB is brown, Bb is brown, and bb is blue, if B is present, brown will always show, but as long as the little b is there, there is a chance of the kids having blue eyes, sure most people would have brown eyes, but a lot of the people with brown eyes would be Bb
5 0
3 years ago
What result would be expected if an additional stimulus, equal in intensity to the first, were to be applied to the muscle at th
horrorfan [7]
Looking at the graph attached to this question, the correct option is this: THE MUSCLE WILL INCREASE IN TENSION TO A LEVEL GREATER THAN THAT MEASURED AT THE BEGINNING OF PHASE C.
Adding more load to a muscle increases the amount of work that a muscle is doing and increased work done by the muscles also results in increased muscle tension.  <span />
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