Jellyfish and box jellyfish are:
a. hydrozoans.
b. scyphozoans.
c. anthozoans.
d. bryozoans.
e. protozoans.
B
You might also like to view...
Although no specific gene alteration has yet been demonstrated as a cause for schizophrenia (SZ), it is known to have a strong genetic component
A recent study has found a strong association between SZ and a locus at chromosome 10q22-23 in Ashkenazi Jewish and Taiwanese Han populations. Which of the following is probable? A) Other populations will have the same association with 10q22-23. B) The neuregulin-3 gene at this locus is mutated in all or most SZ cases. C) SZ exhibits significant genetic heterogeneity in different populations. D) The region on 10q must include several genes associated with SZ. E) People with SZ being characterized differently in various medical communities results in this association between the Jewish and Han populations.
How are prokaryotes different from eukaryotes?
A) Prokaryotes have no DNA. B) Prokaryotes have no nucleus separating the DNA from the rest of the cell. C) Prokaryotes are unicellular, while eukaryotes are multicellular. D) Prokaryotes cause disease, but eukaryotes don't.
In the presence of carbon dioxide
A. hemoglobin dissociates. B. hemoglobin is not able to bind with bicarbonate. C. hemoglobin changes shape, causing it to give up oxygen more readily. D. the formation of bicarbonate causes oxygen to bind more tightly to hemoglobin.
After 20 years, what was the total number of bird species?
a. 14 b. 60 c. 120 d. cannot be determined from this graph