The independent variable in an experiment is the one that is deliberately modified or adjusted in order to observe its effects.
In this case, the varying amounts of caffeine administered to the dogs are the factor that changes—the control group receives no caffeine, the second group gets 10 mg of caffeine, while the third group gets 50 mg of caffeine each.
Thus, the amount of caffeine given to the dogs is the independent variable being altered.
I can assist, but there’s no diagram or statements provided to select from.
Cuando el agua es abundante (no limita), las plantas tienen la capacidad de poseer más estomas, lo que aumenta el acceso al agua (y a los iones de hidrógeno necesarios) y proporciona un mejor soporte a los tejidos herbáceos.
Espero que esta respuesta sea correcta :)
Choanoflagellates and sponges are sister groups Explanation: Choanoflagellates are tiny unicellular organisms in the kingdom Protista, morphologically akin to the choanocyte cells of sponges, featuring a central flagellum encircled by a collar of microvilli. Consequently, choanoflagellates are often regarded as the closest living relatives of primitive metazoans, thus classifying them as sister groups to sponges. Recent molecular phylogenetic and genomic studies have backed this idea.
