• Resource ID: R4SCI0007
    • Grade Range: 9–12
    • Subject: Science

    Monohybrid and Dihybrid Crosses

    Learners calculate the probability of genotypic inheritance and phenotypic expression using mono- and dihybrid crosses.

    • Resource ID: R4SCI0008
    • Grade Range: 9–12
    • Subject: Science

    Mechanisms of Evolution Beyond Natural Selection

    Learners analyze and evaluate the effects of other evolutionary mechanisms.

    • Resource ID: K2KB007
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Predict Monohybrid Crosses

    Biology Kid2Kid videos present biology concepts taught to a student by a student. This resource contains videos that explain monohybrid crosses in both English and Spanish.

    • Resource ID: BM1L8B
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Cell Specialization and Differentiation

    Given examples, descriptions, and illustrations, students will be able to describe the role of DNA, RNA, and environmental factors in cell differentiation.

    • Resource ID: BM0L8
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Equipment for Biology

    Given investigation scenarios, students will determine the equipment that best fits the procedure.

    • Resource ID: BM1L6
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Cell Processes: Fermentation

    Given descriptions or illustrations, students will identify where fermentation occurs and the results of fermentation.

    • Resource ID: BM1L9
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Disruptions of the Cell Cycle: Cancer

    Given illustrations or descriptions, students will identify disruptions of the cell cycle that lead to diseases such as cancer.

    • Resource ID: BM2L3
    • Grade Range: 9–11
    • Subject: Science

    OnTrack logo Mechanisms of Genetics: DNA Changes

    Given illustrations or partial DNA sequences, students will identify changes in DNA and the significance of these changes.

    • Resource ID: BM3L4
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Taxonomy Standards

    Given examples, students will recognize the importance of taxonomy to the scientific community.

    • Resource ID: BM3L6
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Taxonomy: Major Groups

    Given illustrations or descriptions, students will determine the classification of organisms into domains and kingdoms.

    • Resource ID: BM5L5
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Homeostasis: Ecological Systems

    Given images, videos, or scenarios, identify and describe the responses of organisms, populations, and communities to various changes in their external environment.

    • Resource ID: BM4L6
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Biological Systems: Homeostasis

    Identify and describe internal feedback mechanisms involved in maintaining homeostasis given scenarios, illustrations, or descriptions.

    • Resource ID: BM5L1
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Relationships Between Organisms: Food Chains, Webs, and Pyramids

    Given illustrations, students will analyze the flow of matter and energy in food chains, food webs, and ecological pyramids.

    • Resource ID: BM5L8
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Organisms' Adaptations

    Given scenarios, illustrations. or descriptions, the student will compare variations and adaptations of organisms in different ecosystems.

    • Resource ID: BM5L7
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Homeostasis—Succession

    Given scenarios, illustrations, or descriptions, the student will identify the process of ecological succession and the impact that succession has on populations and species diversity.

    • Resource ID: R4SCI0054
    • Grade Range: 8
    • Subject: Science

    It's All About Cell Theory

    This resource provides flexible alternate or additional learning opportunities for students to recognize the development and components of the cell theory, TEKS (7)(12)(F).

    • Resource ID: R4SCI0004
    • Grade Range: 9–12
    • Subject: Science

    Science icon Protein Synthesis

    The learner explores the structure and function of the nucleic acids and enzymes important to the process of synthesizing proteins.

    • Resource ID: R4SCI0006
    • Grade Range: 9–12
    • Subject: Science

    R4 logo Cell Comparisons

    Learners compare a variety of prokaryotes and eukaryotes to determine similarities and differences among and between them.

    • Resource ID: R4SCI0009
    • Grade Range: 9–12
    • Subject: Science

    Evidence for Evolution

    Learners analyze and evaluate how evidence of common ancestry among groups is provided by the fossil record, biogeography, and homologies, including anatomical, molecular, and developmental.

    • Resource ID: BM5L7B
    • Grade Range: 9–12
    • Subject: Science

    OnTrack logo Survival of a Species

    Given scenarios, illustrations or descriptions, the student will describe how long-term survival of species is dependent on changing resource bases that are limited.