"Biological diversity<span>" means the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part: this includes diversity within species, between species and of ecosystems.</span>
Some possibilities of why a population decreasing are:
-invasive species
-deforestation
-pollution
-habitat loss
-change in food chain/web
-oil spills
Hope this helps!
Answer:
The correct answer is - the hypothalamus.
Explanation:
The generation of action potentials or nerve impulses generated in the neurons within the hypothalamus which result in the secretion of the hormones.
Hypothalamus is the part of the brain that plays many roles in the body including homeostasis by the secretion of the hormones which are released due to the nerve impulses generated in the nerves present within the hypothalamus.
I think so Flat worms are more complex in all these options.because they have better response system than other options.