Answer:
1) If a pesticide was used to kill the grasshoppers and the caterpillars, then the frogs should be fine, because the pesticide isn't made to effect them; also, unless their diet was only of grasshoppers and caterpillars, then the frogs would not starve.
2) Two human activities that can impact the ecosystem are, pollution, and deforestation. Pollution, because it can harm animals, but against popular (but unscientific) belief, doesn't cause climate change. Deforestation also harms animals, and also causes for some trees to have to produce more oxygen than before.
3)Life on earth could not exist on earth without plants and decomposers because there would be no oxygen left on earth for creatures to breathe, and there would be no nutrients to keep the earth alive.
Aspiración<span> significa introducir o extraer usando un movimiento de succión. Tiene dos significados: Inhalación de un objeto extraño (como </span>aspiración<span> de alimentos hacia las vías respiratorias). Un procedimiento médico para la extracción de algo de una zona del cuerpo</span>
Answer:
Electric signals --> Nervous System
Chemical Signals --> Endocrine System
Nervous system made up of neurons
Neurons send messages using action potentials
Neurons pick up signal as its dendrites pass the signal down the axon into the axon terminals and into the synapses
Synapse drops neurotransmitters into the synaptic cleft
This signals neuron #2 to pass the message on
Hope that helps!!
Explanation: