Here are your answers:
1. Paleontologist use the technique called "relative dating" which is when scientist compare rocks to determine the age. So if you have a rock which has a similar surface to another rock you could determine the age of that rock. You could also use the technique called the "radiometric dating" by measuring the amount of isotopes in the rock.
2. You can determine the age of a rock by "looking how rough or smooth the rocks are"... so lets say you fine a rock that has many points, sides, and rough edges which means the rock is actually pretty young so it was recently created and most likely a sedimentary rock, but if you find a rock that has smooth sides and no rough edges which would mean the rock is pretty old rocks could go up to thousands of years old and if a rock is that smooth it could be up too a million years old.
Hope this helps!
ANSWER: B
explanation: from what I learned in culinary arts, this is kind of a trick question. Its not asking how foods can get contaminated, its asking how CROSS CONTAMINATION can occur. Cross contamination occurs in three ways think of it like this: food-to-food, equipment-to-food, and people-to-food. The answer has to be between B and C. But the answer is B, because the utensil is already contaminated and it is coming in contact with another food. The two or more food handlers working on the same food are not bringing anything contaminated into the situation. Unless they are contaminated (by they I mean their hands lol) then it cross contaminates but that's not it lol im 99% sure the answer Is B.
Answer:
The correct answer is B
Explanation:
Mitochondria are membrane-bound cellular organelles that are found in eukaryotic plant and animal cells that produce high energy compounds (called ATP) that are responsible for cellular activities.
NOTE: ATP (adenosine triphosphate) is described as the unit for energy in biology, hence the answer is B
Answer:
A. it provides them with nutrients
Explanation:
