All the following are all major points of the article Where Have the Steller's Sea Lions Gone except:
a. Some biologists thought commercial fishing was culprit.
b. Killer whales may play a role in pinniped population regulation.
c. Scientific views undergo revision with new data and findings.
d. Scientists often come to contradictory conclusions when examining the same phenomenon.
e. Steller's sea lions decimated the salmon population in Alaska.
E
You might also like to view...
Examine Figure 44.7 in your text, paying attention to the phylogenetic position of sponges in the two phylogenies presented. If the hypothesis represented by the tree on the right is correct, as some molecular evidence suggests, (select all that apply)
A. sponges are monophyletic. B. sponges are paraphyletic. C. the common ancestor of all animals was sponge-like in appearance. D. we don't know what the common ancestor of all animals looked like. E. none of these.
The process by which homologous chromosomes exchange genetic material
A. is crossing over. B. is random fertilization. C. occurs only in bacteria. D. occurs only in animals. E. is independent assortment.
The two basic types of deafness are ________ and ________
Fill in the blank(s) with correct word
A new operon is discovered in bacteria. Transcription of the genes in this operon is blocked by the binding of a protein
to DNA sequences upstream of the operon. This is an example of ____ control. a. positive b. negative c. constitutive d. posttranscriptional e. inducible