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marysya [2.9K]
3 years ago
15

How is a virus passed from an animal host to a human host?

Biology
1 answer:
postnew [5]3 years ago
6 0

Answer:

you might wanna ask ur teacher

Explanation:

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All living things contain carbon.which of the following statements is true about carbon atoms?
vfiekz [6]

I. Each carbon atom can form single bonds with up to four other carbon atoms. II. Each carbon atom can form double bonds with up to two other carbon atoms. III. Carbon atoms can join together to form chains or rings. IV. A single molecule of some compounds can contain thousands of carbon atoms.

Answer:

All the given choices

Explanation:

Carbon is a very interesting element which is the backbone of most organic compounds.

Organic compounds are made up of carbon. Carbon forms a wide range of compound due to the following properties;

  • An atom of carbon has 4 valence electrons and can bond with 4 other carbon.
  • Carbon can form single, double and triple covalent bonds.
  • They can join together to form rings or chains.
6 0
3 years ago
Explain incomplete dominance, using snapdragon<br> flowers as an example.
oee [108]

Answer:

Dominant allele does not completely conceal recessive allele.

Snapdragon with genotype Rr (R being red and r being white), would have a phenotype of pink flowers.

Explanation:

Incomplete dominance is where a dominant allele is not able to completely conceal a recessive allele, usually leading to a phenotype which appears to be a combination of the two.

For example, in snapdragons:

The allele for red flowers (R) is dominant over the allele for white flowers (r). Let's say a snapdragon flower had the genotype Rr, one allele for red flowers and one for white. In the case of 'normal' dominance the dominant red flower allele (R) would mask the effects of the recessive white flower allele (r), resulting in the phenotype (outward observable characteristics) of having red flowers.

However here in the case of incomplete dominance, the dominant allele would not be able to fully cover up the effects of the white flower allele, meaning that both colors (red and white) are expressed in the phenotype, resulting in pink flowers.

Hope this helped!

5 0
3 years ago
Read 2 more answers
Organisms with radial symmetry would likely _________________________________.
Illusion [34]
Be sessile (move from place to place very slowly, or not move at all)
5 0
3 years ago
Muitos casos de endocardite, infecção nas válvulas do coração, são originários de infecções dentárias. Explique uma possível rel
guapka [62]
I don't understand its not my language I would like to help but I can't
7 0
3 years ago
มะเขือเทศเป็นต้นไม้ทรงอะไร
umka21 [38]
Whaaat.. I don’t understand that language..
5 0
3 years ago
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