onion cells are plant cells, while human cheek cells are animal cells. the onion cells have the distinctive brick-like shape while the cheek cells are more round. this is a qualitative observation
The largest known asteroid diamiter is 974 km
I would say B because thermal energy is created from the engine and other parts of the car and mechanical because the car that was stopped had potential energy but moved when hit with the Jordan's car, creating mechanical energy.
hope this helps
Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.