5 What is the main idea of this text?
A
No two human microbiomes are the same.
B
The human body is a diverse ecosystem made up of microbes.
C
Some bacteria cause infections and even life-threatening diseases.
D Some scientists think that infants who lack exposure to microorganisms
develop a higher rate of allergies.

The table below shows the number of foot bones in some horse fossils. horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome