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AVprozaik [17]
4 years ago
13

Umm.....Can you help me on these​

Biology
1 answer:
Rainbow [258]4 years ago
8 0
A for the first one and D for the second
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The mass of an atom is contained primarily in its _____. A. Electron Shell B. Nucleus C. Proton D. Size
igor_vitrenko [27]
The mass of an atom is contained primarily in its NUCLEUS.
An atom is made up of three sub particles, which are proton, neutrons and electrons. The proton and the neutrons are located in the nucleus of the atom while the electron  are located outside the nucleus where they move about in continuous motion around the nucleus. The proton and the neutrons, which are located in the nucleus have the same relative mass of 1, which has been estimated to be about 2,000 times bigger than that of the electron, which has a relative mass of 0.0005. This shows that, the mass of an atom is located primarily in its nucleus. <span />
6 0
3 years ago
Read 2 more answers
What are the chances that a kitten born would have a DIFFERENT genotype than the sister's cat Moo?
Strike441 [17]

A kitten born will have genotype different from sister because the concentration of gene expressed is different in all kittens as it is a phenomenon of codominance.

Explanation:

The moo cat is black and white bicolour cat.

The cat has white colour fur which is combined with some other colour as black.

White colour in cat has white spotting gene that prevents the patches over cat's body.

SS genotype results in large concentration of white colour.

Ss results in medium concentration of white colour.

ss results in black or other dark colurs with very meager or no white colour on skin.

The resultant colour appearance of skin in cats is due to codominance. The colour of the skin depends on the concentration of gene and protein expressed. So, the sister moo cats can have diffrent genotype and different level of white colour patches on the skin and genotype of SS,Ss or ss can be there in sister kittens.

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4 years ago
Explain how endocytosis, digestive enzymes and exocytosis work together to get rid of bacteria
erma4kov [3.2K]

Answer:  Endocytosis brings materials to the inside of the cell while exo takes them out. Exoocytosis has the vesicle being formed in the golgi apparatus which then fuses with the membrane, while endo has the vesicle. formed from the cell membrane which then gets into the cytoplasm.

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3 years ago
A genome identifies genes in an organism. Which part of the DNA molecule is examined to determine the genetic proteins and trait
belka [17]

Answer:

sequence of nitrogen bases

Explanation:

i’m taking my exam rn and that was the correct answer

5 0
3 years ago
How might geographys' knowledge of human systems benefit people
Nana76 [90]
They can help people by making maps for countries so then they know where things are
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3 years ago
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