The number of new infants per one thousand individuals in a population per year is the birthrate
A producer (also known as an autotrophic plant) serve as a food source for other organisms within an ecosystem. They have the capability to produce their own food using photosynthesis.
Photosynthesis is used by plants to crest food. This is essential to all life because of the oxygen plants give off in the process, and the food source the plant becomes.
I believe the answer is fish vertebrates. i hope this helped
Because since their ancestors came before them then they inherit certain beneficial traits that help them survive. Those traits are in the DNA and the animals are evolving to be more fit for the environment that they are in. (hope this helps)
