Akey is a sorting device that lists choices between certain observed characteristics. a dichotomous key is the simplest means of identification. the word dichotomy means "cut or split into two parts." hence, a dichotomous key is a two-part or two-choice key. it asks whether a particular organism has one trait or another—either yellow or brown, either large or small, etc. for this project, you will classify different pieces of fruit by responding to dichotomous questions.
in the fruit lab below, respond to the questions to the computer identify all the pieces of fruit.

after conducting the fruit lab, answer the following questions:

what was your identification accuracy?
identify at least three types of characteristics that you were asked about as you the computer identify a fruit.
how is the fruit lab like a dichotomous key?

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. threat method number of species that benefit number of years to see benefit habitat fragmentation reforestation 450 8 introduced prey species biological augmentation 150 2 which statement is an accurate explanation of the information in the table? a. biological augmentation would benefit only a few species because it is typically not very effective. b. biological augmentation would take less time to be effective because it targets the majority of prey species. c. reforestation would take the longest time to be effective because trees take several years to grow. d. reforestation would not benefit many species because most forest species live on the ground.

What is the term for the two sets of chromatids formed in the parent cell a. haploid b. diploid c. gamete d. tetrad