Which vocabulary term is defined as: a soft tissue inside the bone that produces blood cells?
Which vocabulary term is defined as: the lobes of the brain that integrate sensory information and coordinate the creature's response to that information?
Which vocabulary term is defined as: lacking an internal mechanism for regulating body heat?
Assign the following chordate -- ray -- to one of these classifications: subphylum urochordata, subphylum cephalochordata, class agnatha, class chondrichthyes, class osteichthyes, or class amphibia.
Assign the following chordate -- sea squirt -- to one of these classifications: subphylum urochordata, subphylum cephalochordata, class agnatha, class chondrichthyes, class osteichthyes, or class amphibia.
Assign the following chordate -- salamander -- to one of these classifications: subphylum urochordata, subphylum cephalochordata, class agnatha, class chondrichthyes, class osteichthyes, or class amphibia.
Assign the following chordate -- lamphrey eel -- to one of these classifications: subphylum urochordata, subphylum cephalochordata, class agnatha, class chondrichthyes, class osteichthyes, or class amphibia.
If an animal's optic lobes are very small, what, most likely, is its weakest sense?
What protein allows red blood cells to perform their function?
An animal reproduces when the female lays eggs and the male then fertilizes them. The eggs are then left to develop and hatch. Is fertilization external or internal? What kind of development is this?
Which has the most flexible skeleton, a shark, a frog, or a lionfish?
Which of the following organs sends messages from brain to other parts of the body and vice-versa?
Which of the following organs makes bile for the digestion of fats and does many other chemical tasks?
What is the major respiratory organ for most amphibians?