What is true about the evolutionary relationships between groups of animals on a phylogenetic tree? a. The closer animals are located on a tree, the more characteristics they share.

b. Animals on a tree are related only if they are on the same branch of the tree.

c. Only the animals close to the bottom of the tree share a common ancestor.

d. The further apart animals are on a tree, the more closely they are related.

Mention true or false : a) cholera is marked by acute diarrhea and no urination. b)mosquitoes are the source of dysentery germs.

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons