Properly identifying each species.
Accurately recording his findings.
Not interfering with ecosystem while studying the birds.
Answer: Please refer to:
El metabolismo es el conjunto de reacciones químicas que tienen lugar en las células del cuerpo para convertir los alimentos en energía. Nuestro cuerpo necesita esta energía para todo lo que hacemos, desde movernos hasta pensar o crecer.
Explanation:
Not sure but hope it helps.
There are 5 different levels of cellular organization.
Cells, tissues, organs, organ systems and whole organisms. Cells hold genetic material and absorb outside energy.
Tissues make up the bones, nerves and connective fibers of the body. Organs work to perform specific bodily tasks, such as filtering blood. Organ systems are groups of organs that perform a specific kind of function together, such as digesting food.
Together, these smaller systems make up an entire living organism which can grow and then go onto reproduce.
Explanation:
Proteins are a type of Macromedia and is made up of sub units that are called amino acids.