During embryonic development in the eumetazoa, gastrulation results in

For each tree pictured above, select the most likely pollination and seed dispersal mechanism.  PLEASE NOTE: THERE IS A TECHNICAL ISSUE WITH THIS QUESTION.  YOU WILL RECEIVE FULL CREDIT FOR ANY ANSWER (BUT PLEASE ANSWER THE QUESTION).

Which of the following characters is seen in the angiosperms (flowering seed plants), and is not seen in other seeded vascular plants?

A basic postulate of Einstein’s theory of relativity is:

The figure shows two charged particles fixed (glued) in place. At what coordinate (x = ? m) on the x axis (other than at infinity) can I place a third charged particle such that the net force on that third particle is zero? q1 = +12e, q2 = +6e, d = 0.300 m.

A certain sample carries a current of 4 A when the potential difference is 2 V and a current of 10 A when the potential difference is 4 V. This sample:

Two point charges are arranged as shown. In which region could a third charge +1 C be placed so that the net electrostatic force on it is zero?

A positively charged insulating rod is brought close to an object that is suspended by a string. If the object is repelled away from the rod we can conclude:

The sum of the emf’s and potential differences around a closed loop equals zero, is a consequence of:

A heat of transformation of a substance is: