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nata0808 [166]
2 years ago
7

Q.18. During which period did the first trilobites appear?

Biology
2 answers:
nirvana33 [79]2 years ago
8 0

Answer:

A. Cambrian period

Hope this helps :)

frez [133]2 years ago
7 0

Answer:

a) cambrian

Explanation:

The first body fossils of trilobites appeared in the Early Cambrian Period, about 540 million years ago.

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If all your organs are components in the human body system, what body part act as the boundary?
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The endocrine system or the skin (:
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The cell will enter the G1 phase. During this phase, proteins and nucleotides needed for DNA replication will be produced. Also,
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Answer and Explanation:

The interphase is the previous step before mitosis occurs. The interphase is conformed of the G1, S, and G2 stages.

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The stages S and G2 follow the G1. Once the whole interphase is completed, mitosis occurs.

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5 0
3 years ago
Which statement is true? Bronchitis can result in hoarseness. Cystic fibrosis is a genetic disorder that causes thick mucus secr
Natalka [10]

<u>Answer</u>:  Cystic fibrosis is a genetic disorder that causes thick mucus secretions.

<u>Explanation</u>:

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3 0
3 years ago
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An example of a population in which evolution could
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An example of a population in which evolution could  take place in a relatively short period of time could be pathogenic bacteria exposed to antibiotics.

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Evolution if takes place within a short period of time say the next generation that is called as micro evolution. This is caused when a specific organism exposed in a different environment at once modifies its genes to suit the new environment.  This phenomenon can be very well seen in the pathogenic bacteria which are exposed to antibiotics.

When an antibiotic is prescribed to bacteria initially it nullifies its effect by destroying it. When continuously exposed to a certain antibiotic some bacteria dies but there are few which becomes resistant to it and survives. This on the other hand multiplies producing a generation that can’t be touched by the antibiotic.

4 0
2 years ago
What is the period of the cell cycle between cell divisions. A. telophase B. interphase C. metaphase D. telekinesis
avanturin [10]
<h2>Answer:</h2>

<h3>Interphase</h3>

<h2>Explanation:</h2>

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4 0
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