Which of these scientists developed the model that placed the sun at the center of the universe?
A. Rosalind Franklin
B. Nicolaus Copernicus
C. Galileo Galilei
D. Archimedes

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.

Some substances but not other can cross the (blank) membrane of a cell