About This Chapter
TASC Science: Structure & Function of Living Things - Chapter Summary
Watch these short, entertaining videos to examine the systems and functions necessary to support the bodies of living creatures as you prepare for your TASC Science assessment. You can read through the video transcripts for an additional look at the ideas. Our lessons illustrate the following:
- Properties of multicellular organisms
- Epithelium and tissues
- DNA and its double-helix structure
- Systems that regulate growth and reproduction
- Dynamic homeostasis
- The sympathetic and parasympathetic nervous system
Each lesson comes with a short lesson quiz that lets you practice using and analyzing the demonstrated ideas. If you get stuck on a quiz question or have any questions about the systems covered in this chapter, ask our instructors for assistance.
Objectives of the TASC Science: Structure & Function of Living Things Chapter
The TASC Science high school equivalency test includes 55 questions in selected-response format. It is designed to evaluate your understanding of three content areas: physical sciences, life sciences, and earth/space sciences.
This chapter reviews some of the biology concepts you can expect to see under the life sciences portion of the test. The mobile-accessible, entertaining videos make it easy to fit study time into a busy schedule, and the lesson quizzes show you what questions from the computer-administered TASC assessment look like. You can take the quizzes as many times as you like, so they can be used to practice speeding up your exam pace. You'll have 75-80 minutes to take the assessment.
1. Multicellular Organisms, Tissues and Epithelium
In this lesson on multicellular organisms, you'll take a look at what it actually means to be multicellular and how cells are organized into tissues, organs, and organ systems. This lesson also covers one of the four main tissue types: epithelial tissue.
2. DNA: Discovery, Facts, Structure & Function in Heredity
This lesson will help you to navigate the twists and turns of DNA's structure. We'll also clue you in on the amazing discoveries that put this nucleic acid in the limelight as the molecule of heredity.
3. Using Feedback Systems to Regulate Growth, Reproduction & Dynamic Homeostasis
In order to maintain specific internal conditions, organisms use feedback mechanisms. Feedback is essential to the regulation of internal environments, which allows for proper biological functioning.
4. Positive and Negative Feedback in the Sympathetic and Parasympathetic Nervous System
In this lesson, you'll study positive and negative feedback in the sympathetic and parasympathetic nervous systems. You'll also learn why we have a fight or flight instinct and how it works.
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Other chapters within the TASC Science: Prep and Practice course
- TASC Science: Growth & Development of Organisms
- TASC Science: Matter & Energy Flow in Organisms
- TASC Science: Interdependence in Ecosystems
- TASC Science: Cycles of Matter & Energy Transfer in Ecosystems
- TASC Science: Ecosystem Dynamics, Functioning & Resilience
- TASC Science: Social Interactions & Group Behavior
- TASC Science: Biodiversity & Humans
- TASC Science: Developing Environmental Solutions
- TASC Science: Gene Inheritance
- TASC Science: Variation of Traits
- TASC Science: Evidence of Common Ancestry & Diversity
- TASC Science: Natural Selection & Adaptation
- TASC Science: The Universe & Its Stars
- TASC Science: Earth & the Solar System
- TASC Science: Earth's Formation & Plate Tectonics
- TASC Science: Radiometric Dating
- TASC Science: Earth Materials & Systems
- TASC Science: Water & Earth's Surface Processes
- TASC Science: Weather & Climate
- TASC Science: Natural Resources
- TASC Science: Natural Hazards
- TASC Science: Human Impacts on Earth Systems
- TASC Science: Structure & Properties of Matter
- TASC Science: Chemical Reactions
- TASC Science: Nuclear Processes
- TASC Science: Forces & Motion
- TASC Science: Types of Interactions
- TASC Science: Types of Energy
- TASC Science: Conservation of Energy & Energy Transfer
- TASC Science: Wave Properties
- TASC Science: Electromagnetic Radiation
- TASC Science: Information Technologies & Instrumentation
- TASC Science Flashcards