Draw a cladogram that for the following animals: sponges, cnidarians, flatworms, echinoderms, chordates, molluscs,
annelids, nematodes, and arthropods. On your cladogram indicate the points where the following evolved: 1) true tissues,
2) bilateral symmetry, 3) three germ layers, 4) segmentation, 5) protostome development, and 6) deuterostome
development. What will be an ideal response?
Concepts to Consider: Before drawing your cladogram from memory, refer to Figure 30-7
on textbook page 635.
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active is movement
What will be an ideal response?
During the initiation of nitrogen-fixation nodules, a host plant with genetic mutations releases altered forms of flavonoids. What is the likely consequence of this?
A. Infection threads will grow in the wrong direction. B. More nodules will form than necessary. C. Nodules will be misshapen. D. The bacteria will not produce any Nod factors. E. The bacterial will produce higher levels of Nod factors.
What is the difference between the genome and transcriptome of an organism and which would you expect to be cell type-specific?
What will be an ideal response?
When ATP is broken down, heat is released.
Answer the following statement true (T) or false (F)