Answer: B. They are a first line of defense that can begin killing pathogens immediately.
Explanation:
B-lymphocytes are not the first line of defense. On the contrary, innate immune cells such as basophils, dendritic cells, eosinophils, Langerhans cells, mast cells are the body's first line of defence.
Answer:
Landslide will produce the highest amount of kinetic energy if it moves with high speed and with a large mass.
Explanation:
Kinetic energy is type of energy which depends on the speed and mass of the body. Kinetic energy has direct relation with mass and speed of the body. If speed and mass of an object is higher, maximum kinetic energy will be produced in the object while the object has lower kinetic energy if it has lower speed and less mass. So this phenomenon is also apply on the kinetic energy of landslide. If mass and speed of the landslide is higher, its kinetic energy is also higher.
In my mind it is C, because A looks a bit too suspicious too me, because we already had a lot of crops, but now al lot of the things we use are plastic, such as plastic cups, chairs, and tables etc.
My final answer is C.increased use of plastics.
Hope this helps!
They would die because they couldn't get the food from sunlight