Lions are a large, cat species that live in the savannahs of Africa. As carnivores, they hunt and feed upon herds of zebra. Zebras are also hunted by groups of cheetah, which are another species of cat. Groups of lions and cheetah will often hunt and drive off each other when zebra populations get too low. The relationship between lions and cheetahs is best defined as which of the following? competition

mutualism

parasitism

predation

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas