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2 years ago

Somebody help me so I can give y’all some points

Biology

2 answers:

emmainna [20.7K]2 years ago

8 0

Answer:

B: The number of neutrons

Explanation:

The difference is how many neutrons each has. Carbon-13 has 7 neutrons and C-14 has 8 neutrons.

Aleksandr [31]2 years ago

8 0

Answer:

It has 15 different known isotopes, including carbon-13 and carbon-14. Carbon-13 makes up about 1% of all carbon atoms on Earth, while carbon-14 is used in radiocarbon dating because it decays into nitrogen-14 with a half-life of 5730 years.

Explanation:

It's B

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What component of our skin allows us to sense changes outside of our body, such as temperature and touch?

krok68 [10]

Answer:

Merkel cells located in the epidermis.

It is called sensory function.
The Merkel cells send information to the brain about temperature and touch.
After brain decode that we can feel it.

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2 years ago

Which statement best compares pioneer species with climax communities?

Flauer [41]

Answer:

Explanation:

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2 years ago

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Give examples of how communities or homes reduce pollution.

JulijaS [17]

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3 years ago

What does carbon dioxide have to do with global warming

sweet [91]

Explanation:

Carbon dioxide (CO2) is an important heat-trapping (greenhouse) gas, which is released through human activities such as deforestation and burning fossil fuels, as well as natural processes such as respiration and volcanic eruptions.

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2 years ago

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Please help!!!! very confused pt 2

Schach [20]

Answer:

If the genotype of the parents are Iᵃi and Iᵇi, then four type of offspring will be produced.The genotype of the offspring are, IᵃIᵇ, Iᵃi,Iᵇi, and ii.

Explanation:

IᵃIᵇ = As the alleles are co-dominant in nature, so both type of alleles are expressed. The blood group will be AB. So, both A and B type of antigen will be found in plasma membrane of RBC.

Iᵃi= In this type of genotype only A type of antigen will be expressed in the membrane of RBC. The blood group will be A type.

Iᵇi= In this type of genotype only B type of antigen will be expressed in the membrane of RBC. The blood group will be B type.

ii= This is a recessive type of genotype. So, no antigen will be found on the membrane of the RBC. And the blood group will be O type.

The offspring's ratio will be 1:1:1:1.

4 0

2 years ago