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FromTheMoon [43]
3 years ago
5

Which describes elements in the first group of the periodic table?

Biology
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

alkali metals

Explanation:

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Different variant forms of a gene are referred to as ______________
slavikrds [6]

Answer:

Alleles.

Explanation:

Gene may be defined as the functional segment of DNA that codes for the particular protein. Genes are responsible for the phenotype and genotype of the organism. Each gene may exist in multiple forms.

The variants forms of the genes are known as alleles. Alleles are the alternative form of the same gene. A single gene may have atleast two alternative form. These alternative forms together contribute the functional aspect of the organism.

Thus, the correct answer is alleles.

6 0
3 years ago
In what part of the cell does replication occur
Gelneren [198K]

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Cell replication occurs in the nucleus of the cell

Explanation:

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Compare and contrast mitosis and meiosis. Which statement below is true?
Maslowich

Answer:

Stem cells replicate via meiosis, not mitosis

Explanation:

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3 years ago
which of the following best describes the interaction between the nervous system and the immune system?
Lynna [10]
The immune system and the nervous system maintain extensive communication, including 'hardwiring' of sympathetic and parasympathetic nerves to lymphoid organs. Neurotransmitters such as acetylcholine, norepinephrine, vasoactive intestinal peptide, substance P and histamine modulate immune activity.
7 0
2 years ago
What prior knowledge is necessary before balancing a chemical equation?​
Yanka [14]

Answer:

At first, we should know their molecular formula and symbol. In case of element, symbols are written. But in case of compound, molecular formula is used. Also we should know their coefficient (number) to make the number of atoms either side equal.

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