What structure makes the windpipe stay open, but able to bend

What are you enzymes made from

Which species is an example of an autotroph? a. ladybird c. frog spawn b. bumblebee d. lotus flower

In vertebrates, all neural tissue a. is induced to become neural tissue by the underlying mesoderm b. is induced to become neural tissue by the ectoderm c. is induced to become neural tissue by the neural crest d. all of the above e.

Allergies are caused by which of the following? A. Ingesting IgA in breast milk B. Strong toxins in the environment C. Autoimmune diseases D. Reactions to antigens

A microbe such as Ebola virus that sickens most everyone that is infected would be characterized as a/an

Which describes the work of Nicolaus Copernicus? experimenting on human bodies studying prisms and the nature of light developing a heliocentric theory inventing analytic geometry

What large peninsula is linked to the mainland of greece by the isthmus of corinth?

What is greek mitology

One of the first breakthroughs in biotechnology was the discovery of the gene that makes insulin. Part of this process involved scientists making DNA to match each possible sequence of insulin mRNA. What was the next step of this process? A.

If mollusks evolved before arthropods, where will their fossils be found?