1. STUDY ISLAND MCAS REVIEW
LIFE SCIENCE
Assignment #2
Body Systems
& Reproduction

2. ORGANIZATION OF LIVING SYSTEMS

3. (constant conditions.)
LIVING SYSTEMS
Body systems work together to carry out life processes and maintain homeostasis
(constant conditions.)
Can You…
Name some organs of the digestive, respiratory and circulatory system?

4. Can you… Identify the function of the integumentary system?
Identify the function of the endocrine system?
Can you…

5. Reproduction & Heredity
Asexual Reproduction
Organism produces an identical copy of itself.
Example:
Bacterial fission
Sexual Reproduction
Organism receives half of its genes from each parent.
Example:
Fertilization of egg by sperm

6. Heredity—Punnett Squares
B=brown
b=blue
Two brown eyed parents are
heterozygous (Bb) for eye color.
Can they have offspring
with blue eyes?
Use the Punnett Square to predict
the eye color of offspring.
______% BB ______% brown eyes
______% Bb ______% blue eyes
______% bb

7. Heredity—Punnett Squares
B=brown eyes
b=blue eyes
Can two brown eyed parents have
offspring with blue eyes? YES!!!
25 % BB 75 % brown eyes
50 % Bb 25 % blue eyes
25 % bb

8. This lesson will help you to review material
that you learned in Grade 7 Life Science and
prepare you for this week’s Study Island lesson.
Your Grade 7 teachers send best wishes
and know you will be successful on
Grade 8 Science MCAS.
YOU CAN DO IT!!