The double layered sac surrounding the heart is the pericardium
Answer:
4.9 ^10_5
Explanation:
the negative sign after the exponent is as a result of the decimal point after the number
I positive that the answer id D why because Without<span> them the Earth </span>would<span> be too cold for us, or any other living thing, to survive. Naturally occurring </span>greenhouse gases<span>, such as carbon dioxide and methane, allow solar radiation to reach the Earth's surface, while trapping radiation from the Earth on its way back out to space.
Hope I helped
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The Biosphere Affects<span> Climate. ... Because of its involvement in the </span>Earth's<span> carbon cycle and nitrogen cycle, the </span>biosphere<span> influences the amounts of some of the major greenhouse gases such as methane, carbon dioxide, and nitrous oxide. Listed below are some of the </span>biosphere's<span> major influences on greenhouse gases.</span>
Answer:
50% portion are from mother...
Explanation:
If crossing over does not occur then 3 auto-somes as well as one X chromosome shall always come from mother. Even if two XX were present in case of a female 50% of chromosomes shall always be contributed by the mother...