Chlamydomonas "mating types" differ in what way?
A) chloroplasts B) flagella structure
C) membrane phospholipids D) interlocking male and female parts
Answer: B
You might also like to view...
Researchers tested nitrogen loss from soil where the moss Dawsonia was growing, and compared it to soil from which Dawsonia had been removed. The data are presented below
Researchers decided to test the hypothesis that if the 1-meter-tall Dawsonia gametophyte-sporophyte plants had acted as a physical buffer, then they would have reduced water's ability to erode the soil and carry away its nitrogen. They began with four equal-sized areas where Dawsonia mosses grew to a height of 1 m above the soil surface. One of the four areas was not modified. In the second area, the mosses were trimmed to a height of 0.5 m above the soil surface. In the third area, the mosses were trimmed to a height of 0.25 m above the soil surface. In the fourth area, the mosses were trimmed all the way to the ground, leaving only the rhizoids. Water, simulating rainfall, was then added in a controlled fashion to all plots over the course of one year. The figure below presents four graphs that depict potential results of this experiment. In the figure above, which graph of soil nitrogen loss over time most strongly supports the hypothesis that if the 1-m tall Dawsonia gametophyte-sporophyte plants had acted as a physical buffer, then they would have reduced water's ability to erode the soil and carry away its nitrogen? A) A B) B C) C D) D E) None of these graphs support the hypothesis.
Telomeres are found ____
a. in the middle of chromosomes b. at replication origins c. where DNA strands are joined together d. within genes e. at the ends of chromosomes
The Salalizard is a fictional vertebrate that lives in the forest and appears to be half salamander and half lizard. You are not allowed to collect any wild animals, so you decide to take a video of it to show your colleagues. What behavior best
distinguishes the Salalizard as either a salamander (amphibian) or a lizard (reptile)? A) what the animal eats B) if it lives in trees C) where it reproduces D) whether it is active at night
What was the species concept used by Linnaeus?
A) biological B) morphological C) paleontological D) ecological E) phylogenetic