Ignaz Semmelweis demonstrated the importance of (antisepsis/vaccination/washing) as a means of preventing disease transmission

What will be an ideal response?


washing

Biology & Microbiology

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Which is the correct sequence of steps in the scientific method?

A. form hypothesis - observation - collect data - analyze results - design an experiment B. form hypothesis - observation - design an experiment - collect data - analyze results C. observation - analyze results - draw conclusion - design an experiment - form hypothesis D. observation - form hypothesis - design an experiment - collect data - analyze results E. observation - analyze results - form hypothesis - draw conclusions - design an experiment

Biology & Microbiology

During cleavage, the stage at which the pre-embryo becomes a solid ball with more than 12 cells. _____

A) Human chorionic gonadotropin                                          

B) Zygote                                                                             

C) Chorion                                                                           

D) Morula                                                                            

E) Folic acid                                                                         

F) Fertilization                                                                    

G) Blastocyst

H) Parturition

I) Cleavage

J) Ovulation

K) Placenta

L) Implantation

Biology & Microbiology

Which aspect of their lives prevents

amphibians from becoming fully terrestrial?

a. finding a mate b. reproduction c. respiration d. obtaining food e. more than one of these

Biology & Microbiology

The study of the distribution of animals and plants around the world is

a. diversity.
b. biogeography.
c. ecology.
d. natural history.
e. environmentalism.

Biology & Microbiology