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Which phylum includes aquatic, sessile animals that lack symmetry, true tissues, or organs and are commonly shaped like columnar vases?

Which statement best explains the scientific reasoning to support the observation that a shrew needs more food to maintain a gram of body weight compared to a coyote?

Which of the following is a derived trait among vertebrates?

Using the image below, which statement(s) accurately describes the image? Select all that apply.

Which is the only living animal to retain all embryonic chordate features into adulthood?

All vertebrates and some bilateral vertebrates are ______, meaning the first opening of the developing embryo becomes the anus while the second opening becomes the mouth

The ___ allowed ___ the ability to exploit new habitats further inland and away from water sources

Echinoderms, which includes 5 classes (Asteroidea, Ophiuroidea, Echinoidea, Crinoidea, and Holothuroidea), are an example of:

Using the phylogenetic tree above, order the progression of the six major derived traits from most ancestral to most recent:

Buster Posey’s most recent pay stub stated that his gross annual income was 112,800. His next paycheck will be $8,250 gross pay.  If the Social Security (SSI) base is $118,500 income per year, and he pays 6.2% of his income, what amount will SSI withhold from his next paycheck?