It's now pretty well established that apreviously unstudied fungus (Batrachochytrium dendrobatidis—batrachos is Greek for "froga-or Bd for short) is responsible for the mass extinction of so many frogs. Why hadn't it killed them all before? a. The frogs are more biologically vulnerable because of changes in their skin
b. Radioactive fallout made it more deadly
c. It mutated
d. Boats and planes weren't around​

is this for the e2020 class

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

we need additional information in order to determine the cause of death for anna garcia. there are at least 3 things with explanation included as to why we need them are as follows: