Which of these statements is true with respect to the characteristics of mutations?

they are always harmful but never beneficial or neutral.
they can be harmful, beneficial, or neutral.
they are always beneficial but never harmful or neutral.

Which part of cellular respiration must occur before any of the other steps can occur

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.

Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.