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SpyIntel [72]
3 years ago
6

__________ are secreted by cells infected with viruses, alerting neighboring cells and protecting them from becoming infected.

Biology
1 answer:
Juliette [100K]3 years ago
6 0
Histamine is released when a cell come across an antigen

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The % DV (percent Daily Value) is based on an average 2,000-calorie diet. One gram of carbohydrate provides 4 calories of energy
Olin [163]

Answer: 300 grams

If Anna’s doctor recommends getting 60% of her calories from carbohydrates, it means that (2000*.60) or 1200 calories should come from carbohydrates.

<span>If one gram of carbohydrate provides 4 calories of energy, then 1200 calories is equal to (1200/4) or 300 grams of carbohydrates Anna should consume each day.</span>

7 0
3 years ago
Read 2 more answers
The numbers in the food chains shown here represent the amount of oil droplets consumed. Which food chain best shows the results
viva [34]
Copepods will be the least effected by the oil spill.

Therefore I believe the correct answer should be Copepods 10 arrow pointing right Seahorse 1,000 arrow pointing right Stingray 2,500

Good luck! Hope this helps!
8 0
3 years ago
In mendelian genetics, genetic characteristics that are not expressed in an organism are said to be
Reika [66]
Gregor Mendel laid the groundwork for the science of genetics by developing his Mendelian inheritance, which <span> is a type of biological inheritance.</span><span>
In Mendelian genetics, genetic characteristics that are not expressed in an organism are said to be nondominant. 
</span><span>In contrast those genetic characteristics that are expressed in an organism are said to be dominant.
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3 0
4 years ago
Which of the following pairs accurately connects a macromolecule to its monomer?
Mice21 [21]

A monomer can be defined as the molecule that is capable of binding in long chains. The monomers bind together to form different polymers by the process of polymerization.

The monomer of carbohydrate is monosacchride. The monomer of proteins is amino acid, and that of lipids is glycerol and fatty acids. These three macromolecules are wrongly paired in the question.

The monomer of nucleic acids is nucleotide. This is correctly matched.

Hence, the correct answer is 'Option B - nucleic acids - nucleotides'.

7 0
3 years ago
What evidence suggests that vertebrates are more closely related to echinoderms than are any other invertebrate phyla?
VMariaS [17]

Answer:

Option C, shared DNA sequences

Explanation:

Complete question -

What evidence suggests that vertebrates are more closely related to echinoderms than are any other invertebrate phyla?  

- shared patterns of development

- shared morphology

- shared DNA sequences

Solution

Vertebrates have true backbone while invertebrates lack true backbone. Among the invertebrates, the echinoderm phylum is closely related to vertebrates as the echinoderm possesses notochord (similar to backbone) during their early stage development which disappears later.  

Through the genomic sequence studies it has been found that echinoderms are similar to vertebrates in many ways. Echinoderms have diverged from deuterostomes along with human and hence pose some genetic similarity  which can be devised through study of common DNA sequences

Hence, option C is correct

5 0
3 years ago
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