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wariber [46]
3 years ago
15

An investigator wishes to use animals in an experiment that involves category B, C, and D activities performed on the same anima

l. How should the animal be categorized
Biology
1 answer:
Arte-miy333 [17]3 years ago
5 0

Answer:

Category D

Explanation:

In the USA, the Federal Animal Welfare Regulations require that research laboratories report animal use according to the species as well as the number of individuals subject to experimentation procedures. Moreover, animal use for research/teaching purposes is also reported according to the classification by pain and distress categories. Basically, this classification has four categories (B,C, D and E) in increasing order according to the pain level suffered by research animals. Animals within Category D include those subjected to potentially painful or stressful procedures. In consequence, in this category, it is imperative the utilization of proper anesthetics and/or analgesics in order to diminish the pain and suffering of these animals at the lower level possible.

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Do proteins defend the body from harmful microorganisms
Aliun [14]

Answer:

yes sure of it

Explanation:

Proteins are made up of amino acids that join together to form long chains. You can think of a protein as a string of beads in which each bead is an amino acid Antibodies are proteins in your blood that help protect your body from harmful invaders like bacteria and viruses. ... Without these antibodies,bacteria and viruses would be free to multiply and overwhelm your body with the disease they cause

5 0
3 years ago
The allele for red hair is recessive to the allele for black hair. What colour hair will a person have if he inherits an allele
Lisa [10]

Answer:

Black hair

Explanation:

(In most cases) A child from red+black haired parents would have black hair. The allele for black hair is dominant to that of red, and would be the phenotype of the hair.

3 0
3 years ago
The resolving power of the earliest electron microscopes was at least ten times higher than that of the light microscopes, mainl
ki77a [65]

The resolving power of the earliest electron microscopes was at least ten times higher than that of the light microscopes, mainly because the wavelength of electrons is much shorter than the wavelength of light.

The electron microscope uses a beam of accelerated electrons to magnify the object whereas the light microscope uses visible light for this purpose. Unlike the light microscope, the electron microscope uses electromagnets as lenses.

The magnification of the electron microscope is much higher as compared to the light microscope and it produces high-resolution images. However, the Specimen preparation of an electron microscope takes several days while the Specimen preparation of the light microscope takes only a few minutes.

If you need to learn more about electron microscopes, click here

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6 0
1 year ago
What does the ocean do to the CO2 in the atmosphere?
LenaWriter [7]

Answer:

It absorbs.

Explanation:

The ocean absorbs carbon dioxide from the atmosphere wherever air meets water. Wind causes waves and turbulence, giving more opportunity for the water to absorb the carbon dioxide. Fish and other animals in the ocean breathe oxygen and give off carbon dioxide (CO2), just like land animals.

6 0
3 years ago
Read 2 more answers
When did the curds of the universe eventually become?
aniked [119]
The ultimate fate of the universe is a topic in physical cosmology, whose theoretical restrictions allow possible scenarios for the evolution and ultimate fate of the universe to be described and evaluated. Based on available observational evidence, deciding the fate and evolution of the universe have now become valid cosmological questions, being beyond the mostly untestable constraints of mythological or theological beliefs. Many possible futures have been predicted by different scientific hypotheses, including that the universe might have existed for a finite and infinite duration, or towards explaining the manner and circumstances of its beginning.
8 0
3 years ago
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