This document outlines the topics to be covered in an 8th grade biology class over the 4th quarter, including: explaining the processes of ingestion, absorption, assimilation, and excretion; comparing mitosis and meiosis and their role in cell division; explaining the significance of meiosis in maintaining chromosome number; predicting phenotypic expressions from patterns of inheritance; explaining the concept of a species and using taxonomic classification; analyzing the roles of organisms in cycling materials and explaining how materials cycle in an ecosystem; and suggesting ways to minimize human impact on the environment.

1. SCIENCE (BIOLOGY) 8
4TH QUARTER
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2. EXPLAIN INGESTION, ABSORPTION, ASSIMILATION, AND EXCRETION
WEEK 1
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P A G E 0 1
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WEEK 2 COMPARE MITOSIS AND MEIOSIS, AND THEIR ROLE IN THE CELL-
DIVISION CYCLE
WEEK 3 EXPLAIN THE SIGNIFICANCE OF MEIOSIS IN MAINTAINING THE
CHROMOSOME NUMBER
WEEK 4 PREDICT PHENOTYPIC EXPRESSIONS OF TRAITS FOLLOWING SIMPLE
PATTERNS OF INHERITANCE
WEEK 5 EXPLAIN THE CONCEPT OF A SPECIES
WEEK 6 CLASSIFY ORGANISMS USING THE HIERARCHICAL TAXONOMIC SYSTEM
EXPLAIN THE ADVANTAGE OF HIGH BIODIVERSITY IN MAINTAINING THE
STABILITY OF AN ECOSYSTEM
ANALYZE THE ROLES OF ORGANISMS IN THE CYCLING OF MATERIALS
EXPLAIN HOW MATERIALS CYCLE IN AN ECOSYSTEM
SUGGEST WAYS TO MINIMIZE HUMAN IMPACT ON THE ENVIRONMENT
WEEK 7

3. LESSON 4.1
INGESTION, ABSORPTION,
ASSIMILATION, EXCRETION
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