BIO 251 EXAM 1 WITH 100% CORRECT ANSWERS 2025/2026

BIO 251 EXAM 1 WITH 100%
CORRECT ANSWERS 2025/2026

A structure that is composed of two or more tissue types that
work together to perform specific functions for the body is an
___________. correct answers >> Organ


The anatomical position is characterized by all of the following
except ________.


A) Arms at side
B) Body erect
C) Palms turned posteriorly
D) Thumbs pointed laterally correct answers >> C) Palms
turned posteriorly


A good example if a positive feedback mechanism would be
_________. correct answers >> Enhancement of labor
contractions


Which of the following describes a parasagittal plane?


A) A transverse cut just above the knees
B) Any sagittal plane except the midline
C) Two cuts dividing the body into left and right halves
D) Any cut dividing the body into anterior and posterior portions
correct answers >> B) Any sagittal plane except the midline

, Which of the following organs or structures would be found in the
left iliac region?


A) Stomach
B) Liver
C) Appendix
D) Intestines correct answers >> D) Intestines


Which one of the following systems responds fastest to
environmental stimuli?


A) Immune
B) Nervous
C) Lymphatic
D) Muscular correct answers >> B) Nervous


In which body cavities are the lungs located? correct answers
>> Pleural, ventral, and thoracic


Place the following in correct sequence from simplest to most
complex:
1. molecules
2. atoms
3. tissues
4. cells