Which method of food production is sustainable? A. Planting only a single type of crop
B. Improving food storage facilities
c. Overusing antibiotics on livestock
D. Practicing intensive farming

Aresearcher is studying the science of attractiveness and asks volunteer test subjects to rank what trait they find most attractive in a person what type of variable is the dependent variable in this experiment

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

Classify the structures as homologous or analogous, depending on their structure and function.