Answer:
In grassland ecosystem, first trophic level is the producer. Producers are the organisms which makes their own food, here the producer are grasses. The second trohic level contain herbivores which feed on these grasses. These herbivores are eaten by secondary consumers which belongs to third trophic level and secondary consumers are then eaten by tertiary consumer.
The population of producers are very high so it is placed at the base while tertiary consumer are placed on the top due to low population.
Predators and prey are both in a constant struggle for survival, foxes with bigger ears tend to catch more mice, and live longer, because of this, foxes with smaller ears don't live as long, pretty soon all foxes have larger ears. The same goes for prey, Mice with padded feet live longer due to the foxes having more trouble hearing them, pretty soon all mice have padded feet, and the cycle continues.
Answer:
A. Rivers
Explanation:
because most of the water comes from two big rivers
Answer:
b-las hojas
Explanation:
Fotosíntesis: Se realiza en las hojas que se orientan hacia la luz. La clorofila atrapa la luz del sol.
There are two types of cells: prokaryiotic and eukaryotic.
all animal cells aka human body cells (skin, blood, etc) are eukaryotic
