Answer:
Half-Life is the time for a substance (U-235 in this case) to decay to 1/2 its original mass.
Since the problem is asking for the time for U-235 to decay to 1/2 its original mass (100 grams to 50 grams) then the decay time is 1 half-life, or 700 million years.
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Answer:Venter's contribution to science was the invention of a synthetic cell. The correct option is D. Craig Venter created a synthetic cell which is totally controlled by man-made genetic instructions.
Explanation:Just because
The correct answer is to Represent the locations of subatomic particles in different atomic theories.
Explanation:
Atoms, which are the basic unit of matter in the universe are composed of subatomic particles (protons, neutrons, electrons). Moreover, during history atoms have been represented through different models that differ in their general structure as well as the location of sub particles.
This can be seen in the image presented because Thompson's model purposes electrons, which are represented by circles with the negative sign, are distributed inside a positively charged substance. On the other hand, Bohr's model proposes protons are in the center and electrons orbit around it, which shows different locations of sub-particles.
All of the consumers would be affected, and be forced to adapt. Since the amount of grass has decreased, the primary consumer would struggle to survive, and most likely, die out. Since the primary consumer has probably died out, the secondary would either die, or be forced to adapt to the situation, or change habitats ( applies to the rest in the food chain / web).
C. chardonnay,cabernet sauvignon
