Phylogenetic trees clearly show that humans evolved from monkeys.

Euglena is an organism that can be both autotrophic and heterotrophic so it is termed a mixotroph.

The wings of a hummingbird and a bee are _____.

An ecological relationship between organisms of different species that are in direct contact can best be described as _____.

The parabasalid that causes trichomoniasis in humans is called _____.

Genetic drift tends to increase genetic variation.

An enveloped virus obtains the envelope from the host cell.

_____ are short, hair like protusions that enable organisms to move.

Fungi are eukaryotic so the same medicine that kills bacteria cannot be used for fungal infections.

Many rounds of antibiotics that kill intestinal bacteria may result in vitamin deficiencies.