Which of the following organisms was most likely the most recent common ancestor of all animals? a. multicellular algae b. multicellular fungus c. unicellular chytrid d. flagellated protist

b. multicellular fungus

Explanation:

In a recent study, it was discovered that there was a genetic relationship between multicellular organisms like protozoa and animals and fungi have a common ancestor as their ancestors had contact about 1.1 billion years ago.

Therefore, the organism that was most likely the most recent common ancestor of all animals is multicellular fungus

"a scientist studying a whale and its surroundings would need to understand the structure of atoms in case something was negatively affecting the whale or its surroundings."

explanation:

this was from the link provided:

substitution is the answer in this case