Which of the following statements is correct about lemon rob? Mark all that apply.

James Lind’s controlled clinical trial aboard the HMS Salisbury tested five treatments for scurvy. Was there a control group?

By the end of the Seven Years War between Britain and France in 1763, 1512 British sailors had died in battle. 100,000 had died from scurvy.

In James Lind’s era, treating scurvy with oranges and lemons was considered a bizarre remedy, a shot in the dark.

Which of the following statements is correct about James Lind’s participants in his controlled clinical trial aboard the HMS Salisbury? Mark all that apply.  

Viruses can cultured on artificial medium

Sometimes prokaryotic cells are surrounded by a gelatinous, sticky substance. What is this structure called?   A. glycocalyx B. slime C. cell wall D. filament

The image in A is Gram positive and that in B is Gram negative   A                                                                                                                                                                                         B  

Which of the following statements about endospores is TRUE? A. Endospores are formed as a way for prokaryotic cells to reproduce. B. Endospores can be easily destroyed with household bleach. C. Endospores form in response to harsh  environmental conditions. D. Endospores do not survive in the environment for more than a few days.

Which of the following describes a difference between prokaryotes and archaea?   A. Prokaryotes have cell walls composed of peptidoglycan, whereas archaea do not. B. Archaea can live only in water, and prokaryotes can live anywhere. C. Prokaryotes lack nuclei, whereas archaea do not. D. Prokaryotes reproduce asexually, whereas archaea reproduce sexually.