Which Ecdysozoan phylum includes insects, spiders, crustaceans, millipedes, and centipedes?
a. Onychophora
b. Nematoda
c. Arthropoda
d. Nemertea
Ans: c. Arthropoda
You might also like to view...
Flowering plants
a. only reproduce asexually. b. produce clones through sexual reproduction, and under certain circumstances seeds through asexual reproduction. c. reproduce asexually about half the time and sexually about half the time. d. only reproduce sexually. e. produce seeds through sexual reproduction, and under certain circumstances clones through asexual reproduction.
Chemical subunits called amino acids combine to make ____________________. Fill in the blank(s) with the appropriate word(s)
Special bone cells, called ________, are responsible for laying down new bone.
A. osteoclasts B. Haversian canals C. osteocytes D. osteoblasts
Chloroplasts are thought to have originated as endosymbiotic associations when aerobic bacteria engulfed photosynthetic cells. This relationship was favored by the production of ____ by the endosymbiont.
A. glucose B. hydrogen ions C. ATP D. oxygen E. water