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Juliette [100K]
3 years ago
5

.What does the nucleus of an atomcontain

Biology
1 answer:
Arlecino [84]3 years ago
5 0

Answer: The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral. Protons and neutrons are in turn made up of particles called quarks. The chemical element of an atom is determined by the number of protons, or the atomic number, Z, of the nucleus.

Explanation: big brain

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Explanation:

Endochondral ossification is referred to as the process of bone development from hyaline cartilage. Cartilage is systematically replaced by bone to form the growing skeleton. Endochondral ossification process involves chondrocytes enlarge and the surrounding matrix begins to calcify, enlarged chondrocytes die, perichondrial cells become osteoblasts and produce a superficial layer of bone, blood vessels grow around the edges of the cartilage, and osteoblasts replace calcified cartilage with spongy bone.

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c

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In this case Dr. Hakim is studying the influence of genes and the environment on the aggression, which is a kind of behaviour. Hence, Dr. Hakim is a  behavioural geneticists, and he works in in the field of behavioural genetics.

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