A uniparous animal means it only has 1 estrous cycle a year.

The bovine glans penis flares into distinctive mushroom shape and accumulates smegma or “beans”. 

The enteric nervous system is known as the “brain of the gut”.

[Chapter  9 – History Before History: “A Biography of the Earth”] What evidence do geologists use to identify a meteorite impact as the cause of the extinction of the dinosaurs? {select all that apply}

Which phase of the estrous cycle has a temporary inactive period seen between cycles like in the seasonal polyestrous, diestrus, and monoestrous animals.

If animals do not have salivary amylase, digestion of starch begins in the small intestines and pancreatic amylase is released.

[Chapter  8 – Deep Time: “How Old is Old?”] If the parent isotope has a half-life that equals 1.75 million years, how old is the rock?

Birds fly south in the winter threw an instinct not completely understood by scientists. Are all of the words in this sentence spelled correctly?  

The reticulum is where salt and water is absorbed.

_____ is the medical term for chewing of the cud.