1. Which of the following has the smallest effect on the rate of photosynthesis? A. Light intensity

B. Temperature

C. Oxygen concentration

D. Carbon Dioxide

2. The tiny mouth wide openings in leaves where gases move in and out is called ?

A. Stroma

B. Stromata

C. Sweat Pore

D. Mesophyll

Which of the following observations darwin shape his concept of descent with modification? a) species diversity declines farther from the equator.b) fewer species live on islands than on the nearest continents.c) birds can be found on islands located farther from the mainland than the birdsê¹ maximum nonstop flightdistance.d) south american temperate plants are more similar to the tropical plants of south america than to thetemperate plants of europe.e) earthquakes reshape life by causing mass extinctions.