Answer: Yes they are highly venomous
Explanation:
(D) Both perform photosynthesis is the observation that led researchers to propose that chloroplasts evolved from cyanobacteria.
Chloroplasts is the area where photosynthesis takes place. It is a green organelle in a plant cell. Pigments called the chloros in a chlorophyll are needed for the photosynthesis.
Cyanobacteria or blue-gree algae contains a blue photosynthetic pigment and a chlorophyll for photosynthesis.
B. The oldest crust is closest to the mid-ocean ridge.
the highest level which is the 'apex preditor' or in other cases its called a 'tertiary consumer'