Which organism is most closely related to sharks why.

D/dx(1+x^4+x^6/x^2+x+1) a)2x-1 b)2x+1 c)2 d)0

What does space concept mean in international relations?

what should students do prior to taking the act science test? o a. determine whether they need to skip the optional act science test prior to registering for a test date o b. take first-year college courses related to science o c. enroll in dual enrollment courses to have a college-level understanding of science o d. take high school courses in earth science, physical science, and biology submit