Answer:
Keystone species
Explanation:
A keystone species is the one that affects the structure and function of the community irrespective of its small population size. The keystone species is not the most abundant species of the community but occupies an ecological niche that regulates and maintains the structure and function of the rest of the community.
Elephants serve in the dispersal of seeds, make new habitats for various plant species by crushing the woody plants with their feet. Since elephants are shown to regulate the species richness by making space for new species and seed dispersal, they are the keystone species.
The tailbone is an example of a homologous stucture.
Answer: False
Explanation:
The urethra is a tube which runs from the bladder to the end of the penis. It functions by carrying the urine and semen outside the male body.
Urethra is made of two components. Prostatic urethera is the part that runs from the bladder through the prostrate.
The penis is only organ which carries both the fluids out of the body.
Pine trees are the most common
Formed by erosion created by seafloor spreading
RIVER DELTAS ARE formed by erosion created by seafloor spreading
NOT:
caused by the movement of tectonic plates areas of infertile, rocky soil
