All molluscs have a closed circulatory system

Which are lophotrochozoans? (choose all that apply)

Which germ layer forms the digestive tract lining?

Tetrapods evolved from lobe-finned fishes

Which group has the most species of animals?

RNA is thought to have preceded DNA because it:

All protists are closely related and form a natural group.

Which factor limits diffusion in large organisms?

Identify letters A, B, C, D and E in the diagram. [A] [B] [C] [D] [E]

Maria is a newly hired marketing specialist who has consistently met all of her performance goals during her six-month probationary period. Shortly before annual promotion decisions are made, her supervisor tells her that she is the leading candidate for a management position. During a private meeting, he remarks, “I can make sure you get this promotion, but I’d like us to spend the weekend together. If you’re not interested, I can’t promise the promotion will happen.” Maria declines the invitation. Two weeks later, she learns that another employee with less experience received the promotion. The company has no written policy requiring personal relationships for advancement. Which concept best describes Maria’s experience?