Answer:
B
Explanation:
bones are made from many minerals because of calcium;)
Answer:
A plastic bag
Explanation:
Because most evidence is stored in a plastic bag so no evidence is removed and it is protected.
Answer:
Each individual is a member of a population. Each population is made up of a group of individuals of the same species that occupy the same environment and interact with each other. Many different populations together make up a community, and many different communities interact with one another in an ecosystem.
Answer:
None
Explanation:
Because it is controlled hence in our control soooo.... No need to test
Answer:
See the answer below
Explanation:
From the graph, the concentration of salt solution where the number of burst red blood cells equals the number of intact ones is 0.40 g/100 cm3<u>.</u>
<em>At this concentration, the percentage of burst cells is 50, meaning that the remaining 50% of the cells in the experiment remained intact.</em>
The totality of the concentrations of all the salt solutions used is:
0.30+0.35+0.40+0.45+0.50 = 2 g/100 cm3
Thus, the percentage of salt solution concentration when the number of red blood cells that burst is the same as the number of red blood cells that do not burst equals;
0.40/2 x 100% = 20%
