Heart worm is a type of worm that enters a dogs body through a mosquito bite, it produces offspring that lodge in the dogs arteries, and feed off of the surrounding cells. what type of relation ship is this?
a- mutualism
b- predation
c- commensalism
d- parasitism

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

What is the name of the two satelites on mars