American photographer edward steichen purchased the sculpture bird in space while in paris, france. what occurred when he tried to return to the united states with the sculpture?

Which statement about lethal genes is most accurate? question 5 options: they can be maintained in a gene pool by heterozygous carriers when the allele is recessive and the individuals reproduce. they cannot be maintained in a gene pool because they are always dominant. they cannot be maintained in a gene pool because the individuals do not survive. they can be maintained in a gene pool if the allele is expressed before reproductive age.

Hey student is writing a conclusion for his research based informative essay on the possibility of exploring and having mars where should he including his conclusion select two options

Ineed ,someone me on this and my other questions