1. which of the following is not used currently to create phylogenetic relations
ID: 265178 • Letter: 1
Question
1. which of the following is not used currently to create phylogenetic relationships
a. pseudogenes/ tandom repeat units
b. rRNA sequences
c. tooth spacing lengths
2. which of the following is not considered to be a type of fossil
a. compressions of leaves
b. worm tracks in rock
c. amber
3. Sponges are divided into classes based on
a. Their water flow pattern
b. their spicule form
c. the presence of muscle fibers in the porocytes
4. Spicules found in sponges can be made from all of the following except
a. calcium phosphate
b.silica dioxide
c. spongin
5. Sponges, cnidarians and cteniphores all process wastes via
a. osmosis
b. simple diffusion
c.nephridia
6. This is the only cnidarian group with species containing only one body form
a. hydrozoan
b. anthozoan
c.scyphazoan
7. You have a small specimen in a petri dish that has a nerve net within the ectoderm of its medusae, it has 2 tentacles and bands of cilia. It has a complete digestive system. It would fall into this taxonomic group
a. hdrozoan
b. anthozoan
c. scyphazoan
d. ctenophore
Explanation / Answer
AS PER CHEGG POLICY, PROCEEDING TO ANSWER A MINIMUM OF FIRST QUESTION, OR, FIRST 4 SUB-QUESTIONS / PARTS / SUBPARTS, THAT IS, IN THIS CASE ONLY QUESTION 1 TO QUESTION 4, UNLESS SPECIFIED/INDICATED TO DO 4 SPECIFIC QUESTIONS BY THE QUESTION UPLOADER:
ANSWER 1.
c. tooth spacing lengths
ANSWER 2.
b. worm tracks in rock
ANSWER 3.
b. their spicule form
ANSWER 4.
a. calcium phosphate
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