<span>Every cell contains certain structures that perform specialized functions for the cell. What are these structures called?
</span>b. organelles
Answer:
Una variable de control (o constante científica) en la experimentación científica es un elemento experimental que es constante y sin cambios durante el curso de la investigación. ... Las variables de control en sí mismas no son de interés primario para el experimentador.
Explanation:
Answer: C. competition for nest sites between beetles and owls
The answer is 4. Mitochondria
Biological factors that inhibit eating