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scZoUnD [109]
3 years ago
9

The nurse is reviewing principles of immunity. what type of immunity occurs when the body is exposed to a relatively harmless fo

rm of an antigen, which imprints this information on the body’s memory bank and stimulates the body’s defenses to resist any subsequent exposures?
Biology
1 answer:
Nata [24]3 years ago
3 0
Artificial active immunity. I'm a bio major, hope I helped :)
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Why to igneous rocks have the same minerals different names
amid [387]

Gabbro and basalt are two igneous rocks having the same chemical composition, and the same minerals (plagioclase feldspar + pyroxene), but are of different origins. Gabbros form at depths and cool slowly, whereas basalts are volcanic rocks that crystallize rapidly at the surface of the earth.

7 0
3 years ago
A new DNA strand elongates only in the 5' to 3' direction because A new DNA strand elongates only in the 5' to 3' direction beca
Svetllana [295]

Answer:

The correct answer will be option-DNA polymerase can only add nucleotides to the free 3' end

Explanation:

DNA replication process produces the exact copy of DNA which requires various enzymes. The function of adding a nucleotide to the daughter strand is performed by the enzyme called DNA polymerase.

The DNA polymerase enzyme catalyses the process of DNA replication which requires energy provided by the dNTP. The enzyme adds new nucleotides at 3'-OH end of the DNA which favour the reaction energetically.  

Thus, the new DNA strand appears to be elongated in the 5' to 3' direction.

7 0
3 years ago
Can somebody help me with this?
leonid [27]

Answer:

Elements: H (hydrogen) He (helium) Li (lithium) Be (beryllium) B (boron)

compounds: H2O (water) H2O2 (Hydrogen peroxide) NsHCO3 (baking soda) NaCI (salt)

Element compound or mixture?: 1. Element 2. compound 3. Mixture of elements 4. mixture of compounds 5. mixture of elements and compounds.

Rewrite the sentences:

1. all matter is made up of tiny particles calles atoms and molecules

2. right

3. right

4. compounds are chemically joined together

task 2:

1. i know this is element

2. i know this is compound

3. i know this is mixture

task 3:

In this lesson i have learned that Atoms are in everything and are what makes up most of the stuff on earth. They are tiny molecules that make up me and everything around me. I have also learned that atoms are made up of Elements. Elements are chemical molecules that make up things like the air we breathe. However, when more than one element joins together a compound is formed. Compounds make up more physical things around me such as drinking water and salt for cooking. When many different compounds are joined together a mixture is formed. An example of a mixture can be sand and water.

Explanation:

3 0
3 years ago
What's the difference between non-living and dead things?
kobusy [5.1K]
Dead things were once living, such as a dead plant. Non-living things were never alive, like coal. 
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3 years ago
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What is required to begin asexual reproduction?
Maru [420]
Hi

This question is also B

Hoped I Helped
4 0
3 years ago
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