"During a dissection, you push a pin from the outside of an organism into its gastrointestinal tract. In doing so, you pass through multiple distinct mesoderm layers on the way to the GI tract. Which of these statements is likely true

a) The organism is a coelomate.

b) The organism is a protostome.

c) The organism is a cnidarian.

d) The organism diploblastic.

Astudy was performed on 20 trees to test the effectiveness of a new fertilizer. the results of this specific study is brought into question. what would possibly improve the reliability of the results?

Choose the molecule that is described by each phrase. energy used during long activities:

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents