While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade? plantae chordata nonchordata

11. The atomic mass of oxygen is 16. How many neutrons does oxygen have in its nucleus? 32 4 8 16

If nondisjunction occurs, one of the resulting cells will receive "blank"

A word that means the same thing as consumer is a. Autograph b. Producer c. Carbohydrate d. Heterotrph

In theory the enzymes should work in colder conditions but at a lower rate, why?

What quantity can you tell you whether a solution is acid or basic

1. The first choice on a dichotomous key is: "1A. Are wings covered by an exoskeleton? vs. 1B. Are wings not covered by an exoskeleton?" Which organism is separated from the others by this question?

b. Explaining A friend claims that pea plant grow faster than corn plants. Could you investigate this idea through scientific inquiry? Explain.

Why is a disease like osteoarthritis not considered an infectious disease?

What other word from this unit has a prefix homo and means to have two copies of the same allele

Kevin has been experiencing difficulty urinating now that he is over the age of 60. The doctor examines his prostate gland and finds no evidence of inflammation. Furthermore, Kevin's PSA test is normal. It is most likely that Kevin is suffering from