The present giraffe has a long neck as compared to

its ancestors. It could be due to

(a) Natural selection

(b) Isolation

(c) Speciation

(d) Inheritance of acquired character

A group of molecular biologists is trying to synthesize a new artificial compound to mimic the effects of a known hormone that influences sexual behavior. They have turned to you for advice.

What is Charles Darwin's major contribution to science? A. He performed an experiment showing how molecular compounds first formed. B. He categorized thousands of species to compare their different traits. C.

What are some similarities between prokaryotic and eukaryotic cells?

The neural crest is important because several significant vertebrate features develop from it. a. True b. False

After blood enters the kidneys name the two paths the fluid takes A ureters B bladder C urethra

What is the molar mass of Na2B4O7 rounded to the nearest whole number

How does the rate of extinction compare to the rate of species formation on Earth today?

The use of a radioactive substances as a therapy for in-tent restenosis of a coronary vessel is referred to as

Tongues have the ability to taste sweet, sour, salty, and bitter. true false

Two ways that bacteria cause disease are