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In this lab, students investigate how salinity affects hatching of the eggs of a particular type of brine shrimp.

Students use a prediction guide to surface prior knowledge on sexual reproduction across different species.

An index of multimedia and text resources that can be used to support students in investigating the similarities and differences between the fertilization methods of different species and the role fertilization plays in sexual reproduction.

Organisms may reproduce sexually, asexually, or utilize both modes of reproduction depending on their environment. Both sexual and asexual reproduction confer advantages and disadvantages to the individual organism and the population as whole. In this sequence, students explore these concepts and gain an understanding of the idea that sexual reproduction is especially important in maintaining genetic diversity which may lead to increased disease resistance and viability of a population in an unstable environment.

Commonalities in embryo development across vertebrates highlight evolutionary relationships and provide evidence for common descent. Human reproduction is highlighted in this sequence, and students explore the role of the placenta and how toxins may impact development.

An index of multimedia and text resources that can be used to support students in investigating the similarities and differences between eggs of different species and the role meiosis plays in sexual reproduction.

Commonalities observed across gametes in all sexually reproducing organisms provides evidence for the unity of life. However, many differences demonstrate the role of natural selection in ensuring organisms are uniquely adapted to their habitat and lifestyle. In this sequence, students explore ova to begin to tease out evolutionary relationships, gain a deeper understanding of adaptive reproductive strategies, and to discover the function of meiosis.

In this lab, students examine the intricate structures that compose a flower.

Different plant and animal species employ different strategies for reproducing sexually. One key area where these differences are observable is in their method of gamete production and their fertilization methods. In this sequence, students compare different species' gamete production and fertilization methods to those of humans; allowing them to consider the reproduction advantage of different methods.

Reproduction and development are necessary for the continuation of any species, and as such all species have unique but related strategies for reproduction. In this unit, students learn about continuity and diversity of life in a variety organisms, including humans, and use their findings to discern evolutionary relationships. Exploring print texts, visuals, and hands-on experiences, students compare the mechanisms through which different living things reproduce, with a focus on comparisons to human reproduction.

The Regents Item Bank provides questions from past Regents exams aligned with the content of this unit.

In this task, students create a cladogram that most accurately represents the evolutionary relationships between the organisms given. Students use evidence from the unit to justify the choices made in your cladogram, including an explanation of why there are both similarities and differences across all of the organisms.