Answer:
Chemical nutrients and energy tend to flow in the same direction for most of an ecosystem. The big difference is that the chemical nutrients are ultimately recycled in the ecosystem while the energy is ultimately lost from the ecosystem to the universe at large. Energy in any ecosystem ultimately comes from the Sun
Explanation:
The spiders have became resistant to the pesticide.
A branch or leaf and here is a link to some flash cards i found
https://quizlet.com/45759526/developmental-anatomy-flash-cards/
Geographical variation refers to differences among populations in genetically based traits across the natural geographic range of a species. ... In the simplest case, we divide these factors into purely genetic versus environmental components to tease apart their relative contributions to observed phenotypic variation.
Answer:
Each combination of an element with a different number of neutrons is called an isotope. The radioactive isotope is called the parent, and the isotope formed by the decay is called the daughter
