Pls !
atoms combine when
a. their electrons are shared or transferred
b. their outer electron shells are filled
c. the number of electrons and protons is the same
d. the number of protons and neutrons is the same

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

Which statement best describes the relationship between an allele and a gene? question 1 options: an allele is a variation of a gene that can be expressed as a phenotype. an allele is the part of a gene that attaches to messenger rna molecules. an allele is a segment of a dna molecule that controls replication of a gene.

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination