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aliina [53]
3 years ago
13

Describe the location and the length of the incision you will make in the earthworm

Biology
1 answer:
marishachu [46]3 years ago
8 0

Earthworms are delicate. Careful handling is important to avoid damaging the internal organs.

Place the worm with the dorsal side up. Start the dissection 2 centimeters posterior the reproductive segment. Snip the skin above the dorsal blood vessel  ( near the posterior pin) through the septa to the mouth.

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Answer:

The answer is option b.

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Hope this helps.

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An infant is admitted to the hospital with gastroenteritis. the infant vomits shortly after admission. under standard precaution
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Under standard precautions, the nurse should wear the following when cleaning a newly admitted infant with gastroenteritis after a vomiting episode: a single pair of disposable gloves, long-sleeved disposable gowns, mask, and protective eyewear in order to prevent the splatter of the infant's vomit to the eyes, mouth, and nose. Gastroenteritis is caused by a virus that gets transmitted from one person to another either by direct contact or airborne. Touching contaminated or exposed objects, hand-shaking, and sniffing are some of the modes of transmission.
6 0
3 years ago
What kind of mutations were more beneficial ? Why ?
Alex
A mutation is a permanent change in the DNA sequence of a gene. This can be beneficial if the change gives a new function to or improves the function of that gene. 

<span>The above is a definition. But one must really define "beneficial". Some regard it as beneficial if it helps the specific individual who has it. Others would think it beneficial if it produced some survival advantage that insured more descendents for that individual. </span>

<span>It is the difference between a mutation that allowed for greater athletic ability, but a decreased desire for offspring, versus a more moderate athletic enhancement, but a greater desire for offspring. </span>

<span>The small percentage of ways to improve an organism, versus the near infinite ways of harming the organism, mean that most mutations are not going to be beneficial. At best, they will be "inconsequential" - such as a new shade of eye color, or a mole on a section of your skin. </span>

The populist notion of "powers" that can come from mutations is wildly inaccurate. Even assuming a minor power like the ability to see infra red radiation would take thousands upon thousands of mutations over vast amounts of time. A mutation for blindness is far more likely.

<span>It should also be noted that the traditional model of evolutionary theory no longer applies to man. We don't allow changes in our environment, and without such changes, there is no need for one trait more than another to predominate. After all, it is irrelevent that a mutation might allow for greater speed in running, when everyone drives a car.</span>
4 0
3 years ago
(Click the picture)
agasfer [191]
I think your right thats what i think it is two

8 0
3 years ago
What is inheritance in biology
notka56 [123]

Answer:

passing of traits

Explanation:

Inheritance is the act of passing traits through sexual or asexual reproduction.

4 0
3 years ago
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