STUDY ISLAND MCAS REVIEW

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Presentation transcript:

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

ORGANIZATION OF LIVING SYSTEMS

(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?

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

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

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

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

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!!