Diatoms have cell walls composed of silicon dioxide.
A. silicon dioxide.
The answer is A. An electrocardiogram (EEG) measures the electrical activity of the heart to see if there’s any irregularities in the heartbeat. Irregularities in your heartbeats can be caused by many things including blockages which can cause strokes and heart attacks. It’s a good idea for students or any athletes to get an EEG as part of their physicals to rule out any heart issues.
Answer:
spider with second option (spiders have an open circulatory system.)
earthworm with first option
starfish with forth option
Explanation:
<span>In a population of field mice, favorable traits in the mice are likely to INCREASE over time, and unfavorable traits are likely to DECREASE over time.
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The best and most correct answer among the choices provided by your question is the last choice.
<span>The statement "Both prokaryotic and eukaryotic cells use binary fission for asexual reproduction and mitosis for sexual reproduction." is TRUE among the eukaryotic and prokaryotic cells.</span>
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