What is true of all animals?Multiple choice question.They have similar body plans.They have complex body plans.They are multicellular.They are unicellular.

Breakdown of the Problem

To determine what is true of all animals, we need to analyze each option provided in the multiple-choice question.

Relevant Concepts

1. Animal Characteristics: Animals are a diverse group of organisms with certain defining features.
2. Cell Structure: Animals are typically multicellular, meaning they are composed of multiple cells, as opposed to unicellular organisms that consist of only one cell.

Analysis and Detail

1. They have similar body plans: While many animals share certain body plan features (e.g., bilateral symmetry, radial symmetry), they exhibit a wide variety of body plans, so this statement does not hold true for all animals.

2. They have complex body plans: While many animals possess complex body structures, not all animals are complex. For example, sponges have very simple body plans.

3. They are multicellular: This statement is accurate. All animals are multicellular organisms. They are composed of many cells that work together to form tissues and organs.

4. They are unicellular: This is false since no animals are unicellular; unicellular organisms belong to other life forms like bacteria and protozoa.

Verify and Summarize

Upon evaluating each option, the only true statement applicable to all animals is that they are multicellular. The other answer choices do not accurately apply to all animals.

Final Answer

They are multicellular.