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gregori [183]
3 years ago
9

What were the subgroups to plants

Biology
1 answer:
dlinn [17]3 years ago
5 0

Explanation:

The division comprises a tremendous diversity of plants among its four subgroups: psilopsids, leafless and rootless primitive forms commonly known as whisk ferns (though not true ferns); sphenopsids, feathery leaved plants commonly called horsetails; lycopsids, low-lying plants called club mosses; and pteropsids, 

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The body uses fat as a fuel source.

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The ______ occurs when there is a drastic reduction in population size due to a sudden change in the environment
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How many atoms are there in a molecule of theobromine
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Answer:

21

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Indicate what type of external defences are overcome when the following infections occur:
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A scientist conducted a study of an organism and found that its body cells contained 40 chromosomes. While conducting her observ
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Answer:

The difference that the scientist would expect to see between body cells and sex cells with respect to cell division is that body cells divide by mitosis for the growth and repair of cells, while sex cells divide by meiosis for sexual reproduction.

Explanation:

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  1. <u>Somatic cells</u> are those that define the structure and function of the organism, forming tissues by binding together. The process of mitotic division —to obtain from an original cell two identical daughter cells— is important for the growth, development and repair of an individual's tissues.
  2. <u>Sex cells </u>or gametes have half of the chromosomal charge —they divide by meiosis, a reductive cell division— and are involved in the process of sexual reproduction.

<em>     The characteristics described for each cell type explain why the other options are not correct.</em>

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2 years ago
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