Answer: It started with an electric spark,Molecules of life met on clay,Life began at deep-sea vents,Life had a chilly start,The answer lies in understanding DNA formation,Life had simple beginnings,Life was brought here from elsewhere in space
Explanation: The most prominent scientific theory about the origin of the Earth involves a spinning cloud of dust called a solar nebula. This nebula is a product of the Big Bang. Philosophers, religious scholars and scientists have lots of ideas about where the universe came from, but the most widely-held scientific theory is the Big Bang Theory.
The answer to your question is answer choice .1 Independent variable.
Answer:
Gymnosperms and lower vascular plants have sieve cells as their sieve elements, while sieve tubes are characteristic of flowering plants angiosperms. In gymnosperms, typical companion cells are lacking in the phloem. In gymnosperms, generally the xylem contains only tracheids. Vessels are absent.
Explanation:
did that help?
Answer:
I'm liking D for the third one but you might be correct.
Explanation:
The Correct Answer is:
''<span>it increases the size of arteries and veins''
Rest of the options are consistent with the harmful effects of smoking on a person's health.
Smoking can increase the chances of a blood clot, increase blood cholesterol and contributes towards </span><span>atherosclerosis</span><span>
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