One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds. how are the birds able to coexist?
a) they occupy different niches.
b) they occupy different habitats.
c) they occupy different ecosystems.
d) they occupy different communities.

What is the cause hearing loss in human being

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.