In a researcher's lab in the EEB department at UM, they expose small crustaceans to infectious diseases. An undergrad working in this lab put 3 infected hosts in a beaker with 15 uninfected hosts. 6 of the uninfected hosts became infected. What is Ro for this disease?

A. 2
B. 0.5
C. 15
D. 6
E. 3

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.