A group of biologists primarily studying the evolutionary relationships of crickets also include closely related grasshoppers to help determine which traits are ancestral in crickets.

The crickets are the ingroup.
A. outgroup.
B. ancestral group.
C. derived group.
D. synapomorphy.

Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?