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Marianna [84]
3 years ago
9

What is the name of a surface membrane molecule that causes an immune reaction

Biology
1 answer:
Varvara68 [4.7K]3 years ago
3 0
The correct answer is Antigen
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2. What is formed when elements of matter are chemically combined?
Lelu [443]

Answer:

Option B. compounds

Explanation:

Compound is a type pure substance which is formed when two or more than two elements combine together chemically in a fixed ratio. It is represented by a chemical formula. Chemically combine means the elements present in the compound make bonds in order to hold each other. So they are not separated by physical methods. It is separated from one another by chemical methods.

8 0
3 years ago
PLEASE HELP ME ASAP :(
kvv77 [185]

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:  C that protists are single-celled organisms

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

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5 0
3 years ago
Does anybody know the answer to this question please help me 10 more minutes
bija089 [108]

Answer:

The answer is number two extinction happened, this was the time dinosaurs went extinct ebcause lack of sun because oh how much dirt was blown into the earth atmosphere becuase of the asteriod, third option is talking about big bang theroy so that dosnt apply!

Explanation:

3 0
3 years ago
Have you failed if your conclusion does not match your hypothesis
GaryK [48]
Absolutely not!
Your hypothesis is your educated guess on how the experiment will go. If in the end of your experiment, you find that your hypothesis was not supported, that does not make you wrong.
I hope this helps!
6 0
3 years ago
Read 2 more answers
Greg is breeding leopard geckos and wants to produce a new color morph. He crosses a homozygous red morph with a homozygous whit
Anestetic [448]

Answer:

Codominance

Explanation:

Codominance occurs when two heterozygous allele for a trait is expressed equally in the an organism's phenotype with neither allele being dominant or recessive. In codominance, none of the allele hides the expression of the other allele. So when two alleles are crossed, the offspring carries a combination of the parents phenotype without anyone masking the other.

From the question,  the type of genetic pattern of the leopard geckos display is codominance.

6 0
3 years ago
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