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kow [346]
3 years ago
11

Which of the following diseases is always caused by a virus?

Biology
2 answers:
erma4kov [3.2K]3 years ago
6 0

Answer:

B. AIDS

Explanation:

mrs_skeptik [129]3 years ago
3 0

Answer:

Cancer

Explanation

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Both these mechanisms are involved in duplication of DNA which then get passed to offspring and RNA is key component in the duplication of DNA. The genetic information heritable biological information coded in the nucleotide sequence of DNA or RNA.

Genetic material is includes genes and DNA which control the development , maintenance and reproduction of organisms. These messages is passed from generation to generation through inherited units of chemical information. It consist of only two transcription and translation they known as gene expression , during this process of transcription store in gene DNA is passed to similar molecule called RNA in nucleus.

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7 0
1 year ago
Which phylum has members that secrete a hard, calcium carbonate shell?
otez555 [7]

Answer:

i believe your answer would be Mollusca.

Explanation:

(i looked it up on britannica if you have any questions.) Mollusk, also spelled mollusc, any soft-bodied invertebrate of the phylum Mollusca, usually wholly or partly enclosed in a calcium carbonate shell secreted by a soft mantle covering the body.

8 0
3 years ago
What is the condition of having gametes of different sizes and shapes? oogamy isogamy anisogamy or monogamy
Flura [38]

The answer your looking for is here anisogamy


8 0
3 years ago
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Meiosis is a type of cell division that produces:
Xelga [282]

Answer:

B. Chromosomes

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This process is required to produce egg and sperm cells.

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Why do you think some bones, such as the humerus and femur, have rounded ends? Why do you think other bones, such as the vertebr
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The humerus and femur are joint bones, while vertebrae and carpals connect together to create a much bigger bone.

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