An example of commensalism is a(n) ____
a. a clown fish living in a sea anemone
b. an orchid growing on a tree branch
c. yucca plant seeds dispersed by yucca moths
d. Canadian lynx preying on a snowshoe hare
e. a tapeworm living in a human intestine
ANSWER: b
You might also like to view...
All of the following circular DNAs exhibit theta replication except
A) bacteria. B) mitochondria. C) chloroplasts. D) plasmids. E) protists.
A significant polymorphic inversion on chromosome 17, the MAPT inversion, is identified by marker SNPs that can now be used to screen large numbers in a population. The inverted region is large and extends for approximately 900 kb
The two haplotypes (one inverted and one not) are each associated with increased risk of a number of neurological conditions. How can the inverted region be used to find the most recent common ancestor of the inversion? A) by typing SNPs from humans and from other primates B) by assessing SNPs from a large number of human populations C) by looking for heterozygotes for the two kinds of chromosome 17 D) by fertility studies on populations with each of the haplotypes E) by using a BAC clone library to identify the ends of the inversion
Design a complete ecosystem that would sustain a number of living organisms for several years in a
sealed container. The only thing that can be added is sunlight. Explain why you have selected each organism. What will be an ideal response?
Which one of the following populations of cells is most markedly increased during bacterial infections?
A) neutrophils B) red blood cells C) platelets D) lymphocytes E) monocytes