Meteoroids are small objects in space, usually made of rock or metal. these bodies often get close to a planet and fall through its atmosphere. a burning streak of light, called a
a. asteroids
b. comet
c. meteor
d. meteoroid

is visible as it falls through the sky. sometimes the object does not burn up completely and a part of it survives the fall to the planet’s surface. these rocky bodies, called
a. asteroids
b. comets
c. meteors
d. meteorites
are studied by scientists to gain a better understanding of our solar system.

The endoplasmic reticulum (er) is an organelle in some cells. in these cells, it is continuous with the nuclear membrane and forms a large part of the cell\'s total membrane. sort the phrases below as describing rough er, smooth er, both, or neither. note: if you answer any part of this question incorrectly, a single red x will appear indicating that one or more of the phrases are sorted incorrectly.1) found in prokaryites and uekaryotys2) involved in protein synthesis3) involve in lipid synthesis4) contains molecular chaperones in lumen5) bound with ribosomes6) involved in toxin or drug metabolism7) large systemot internnected tubules,vesicles, and sacs8) "packages" enzymes in vesicles for secretion.

The function of the excretory system is to control homeostasis and

Creating new things to solve problems and improve life depends on the close interaction of which two fields?