Which of the following statements is true concerning luca? (1) luca was a cell. (2) all life on earth
evolved from luca. (3) luca probably existed probably around 4.5 billion years ago.
a. 1 only
b. 2 and 2
c. 1 and 2
d. 1, 2, and 3

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

What advantages does a pedigree have over a written passage?