Some viruses can enter cells by first attaching to the cell membrane. the flu virus targets and attaches to the cells of the nose and mouth. the hepatitis virus targets only specific cells of the liver. state one way the immune system reacts when one of these viruses enters the body ?

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)