Need help, kind of confused. Crossing over and random assortment lead to ?

a. Reduced number of chromosomes
b. Homologous Alleles
c. Genetic Variation
d. Increased number of chromosomes

When organisms are classified ,they are given a two part name

What organelle other than the nucleus houses dna in a eukaryotic cell?

Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.