The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

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#Question id: 16879

#Section 3: Mathematics and Quantitative Ecology

Suppose a 95% confidence interval for the proportion of Americans who exercise regularly is 0.29 to 0.37. Which one of the following statements is FALSE?

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#Question id: 12450

#Section 1: Ecology

What is the size of the human population today?

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#Question id: 10630

#Section 1: Ecology

Following is relation between population size with various strategies of species, following is correct figure? 

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#Question id: 12759

#Section 5: Applied Ecology & Evolution

As climate changes because of global warming, species? ranges in the northern hemisphere may move northward. The trees that are most likely to avoid extinction in such an environment are those that

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#Question id: 10839

#Section 1: Ecology

Which of the following statements about plants and herbivores is true?