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Nimfa-mama [501]
2 years ago
15

2. Which of the following is NOT a clue that a chemical change has occurred? (1 point)

Biology
1 answer:
Serga [27]2 years ago
8 0

Answer:

D. Change in shape

Explanation:

Change in shape is the physical property of the substance. Chemical change of the compound is observed during a chemical reaction. Change in colour, production of the gas, formation of a precipitate are the examples of chemical change and can be sensed easily.

Vapour pressure, boiling point, density and shape are the examples of physical properties of compounds. Chemical change also leads to change in texture of the compound. A compound has both physical and chemical properties and its chemical reaction is enhanced by the catalyst.

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In a pediatric unit, a child's caregiver asks the nurse, "How is hepatitis B immunoglobulin administered to an infant?" Which st
Tom [10]

Answer: All the mother's who are suffering from chronic hepatitis B, the hepatitis B immunoglobulin is administered into the body of the child.

Explanation:

The mother that is suffering from the chronic hepatitis B receive hepatitis B immunoglobulin (HBIG) and birth dose of the monovalent hepatitis B vaccine.

The same HBIG should also be given to the child when the child is born. The infants receive it just after the birth its effect decreases if given after 48 hours.

This answer from the nurse will be an appropriate response.

6 0
3 years ago
Look at the graph to the right. What does it show?
Levart [38]

Answer:

The graph shows that corals in the Caribbean reefs are declining

Explanation:

4 0
3 years ago
What was the reason for the addition of the Bill of Rights to the U.S. Constitution?
GREYUIT [131]

Explanation:

To ensure ratification of the document, the Federalists offered concessions, and the First Congress proposed a Bill of Rights as protection for those fearful of a strong national government. The Bill of Rights came into effect in December 1791, after ratification by three-fourths of the state legislatures.

7 0
2 years ago
Read 2 more answers
Which one of the following is NOT an example of microbial antagonism?
snow_lady [41]

Answer:

e. bacteria producing vitamin K

Explanation:

Microbial antagonism basically refers as microbes versus microbes i-e the indigenous microflora serve a beneficial role by preventing other microbes from becoming established in or colonizing a particular anatomic location in the body.

As all the options mentioned, refers to the microbial antagonism except option E as the normal microbes protect the host by :

1) Producing acids.

2) Bactreocin production

3) By occupying the niches that the pathogens may occupy.

But the microbes cant compete with other microbes by  producing vitamins and growth factors that can be utilized by the host.

Hence option E is the right answer.

7 0
3 years ago
Identify and describe an example of natural selection.
IRISSAK [1]

Answer:

Natural selection is the process in nature by which organisms better adapted to their environment tend to survive and more than those less adapted to their environment. For example :treefrogs are sometimes eaten by snakes and birds

Hope this helps

5 0
2 years ago
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