Research the fossil record of humans and answer these questions: 1. Name at least two extinct species that share a close evolutionary relationship with humans.
2. Explain the similarities and differences that exist between these species and humans.

3. Is the fossil record complete for humans? Explain your answer.

is this a psat question, if so do not cheat try your best.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.

answer///unconditioned stimulus;