If you were using cladistics to build a phylogenetic tree of cats, which of the following would be the best outgroup?
a. wolf c. lion
b. domestic cat d. leopard

a. Wolf

Explanation:

A phylogenetic tree is a diagrammatic representation in which the premitive living species are compared with the modern organisms on the basis of morphological as well as genetic similarities and differences. Hence, they are separated into distinct groups.

All the given organisms in the options (wolf, domestic cat, lion, and leopard) belong to the vertebrata phyllum. Among the options given all the organisms, except wolf, the other organisms are morphologically close to one other. Thus for constructing a phylogenetic tree for these organisms, wolfs will be an out-group. The other organisms will be the descendent belonging to the same group.

albert einstein retrieved guacamole from the galapagos islands in africa

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.