BIOLOGY 198 FINAL EXAM 2025/2026 –
VERIFIED QUESTIONS AND ANSWERS
, Defining Characteristics of Animals - ANSWERMulticellular
Heterotrophic
Eukaryotic
Reproduce sexually
Embryonic development
Motile
No cell wall
Radial Symmetry - ANSWERSymmetry around a single axis that allows for multiple
planes of symmetry.
The Three Germ Layers - ANSWEREndoderm, Mesoderm, and Ectoderm.
Tissue Types - ANSWERconnective, muscle, nervous, and epithelial
Coelem - ANSWERthe body cavity located between the intestinal canal and the body
wall.
Segmentation - ANSWERDivision of body into repetitive segments for the purpose of
movement and specialization
Cephalization - ANSWERthe concentration of sense organs, nervous control, etc., at
the anterior end of the body, forming a head and brain, both during evolution and in the
course of an embryo's development.
Tissue - ANSWERany of the distinct types of material of which animals or plants are
made, consisting of specialized cells and their products.
Organ - ANSWERa part of an organism that is typically self-contained and has a
specific vital function, such as the heart or liver in humans.
Organ System - ANSWERa group of organs that work together to perform one or more
functions.
Homeostasis - ANSWERthe tendency toward a relatively stable equilibrium between
interdependent elements, governed by positive and negative feedback.
Negative Feedback - ANSWERA reaction that lessens a detected stimuli. Ex: If too
much glucose is detected int the blood, insulin is released to reduce glucose levels.
VERIFIED QUESTIONS AND ANSWERS
, Defining Characteristics of Animals - ANSWERMulticellular
Heterotrophic
Eukaryotic
Reproduce sexually
Embryonic development
Motile
No cell wall
Radial Symmetry - ANSWERSymmetry around a single axis that allows for multiple
planes of symmetry.
The Three Germ Layers - ANSWEREndoderm, Mesoderm, and Ectoderm.
Tissue Types - ANSWERconnective, muscle, nervous, and epithelial
Coelem - ANSWERthe body cavity located between the intestinal canal and the body
wall.
Segmentation - ANSWERDivision of body into repetitive segments for the purpose of
movement and specialization
Cephalization - ANSWERthe concentration of sense organs, nervous control, etc., at
the anterior end of the body, forming a head and brain, both during evolution and in the
course of an embryo's development.
Tissue - ANSWERany of the distinct types of material of which animals or plants are
made, consisting of specialized cells and their products.
Organ - ANSWERa part of an organism that is typically self-contained and has a
specific vital function, such as the heart or liver in humans.
Organ System - ANSWERa group of organs that work together to perform one or more
functions.
Homeostasis - ANSWERthe tendency toward a relatively stable equilibrium between
interdependent elements, governed by positive and negative feedback.
Negative Feedback - ANSWERA reaction that lessens a detected stimuli. Ex: If too
much glucose is detected int the blood, insulin is released to reduce glucose levels.
