Parasitoid wasps are sometimes involved in a plant's defensive response. In what way are the wasps helpful to the plant?
A. The wasps respond to a chemical the plant gives off when wounded, and the wasps lay their eggs on the caterpillar that wounded the plant.
B. The wasps live in hollow thorns of the plants, and attack the plants' predators.
C. The wasps stimulate the production of alkaloids the plants use for defense.
D. The wasps enhance the plants' hypersensitive response.
E. The wasps trigger leaf abscission so that herbivores do not have anything to eat.
A. The wasps respond to a chemical the plant gives off when wounded, and the wasps lay their eggs on the caterpillar that wounded the plant.
Some plants release a volatile compound when injured by a catepillar. This chemical is attracts parasitoid wasps. A wasp will lay her eggs in the body of the catepillar and when the eggs hatch, the larvae kill and consume the catepillar.
You might also like to view...
Which of the following describes genome tiling arrays?
A) use of any DNA microchips B) use of any RNA microchips C) use of several microchips that together contain all sequences of a genome D) use of an entire series of SNP comparisons, including at least one per chromosome E) use of high-throughput technology
Your friend is trying to learn about how to kill bacteria. She reads that preservatives such as citric acid are added to foods because the acidic environment kills bacteria by denaturing their proteins
She thinks this sounds like a lot of scientific jargon and asks you what it means. How can you explain it in simpler terms? A) Denaturing their proteins means that the proteins in bacteria are converted into carbohydrates. B) Denaturing refers to the fact that the bacterial cells divide too quickly and die. C) The acid causes the cells to swell and burst open, also known as denaturation. D) Denaturing means that the proteins of the bacteria lose their structure and can't function, so the bacteria die.
During neuronal signaling, a change in membrane potential will cause sodium channels to open and let Na+ ions diffuse down their concentration gradient into the cell. Which of the following helps establish the concentration gradient necessary for this process to occur?
A. voltage-gated Na+ channel B. Na+/K+ channel C. Na+ symporter D. Na+/K+ pump
Looking at the figure above, could you come up with an alternative hypothesis to the one proposed by Fry and his colleagues? Why or why not? If so, what would your alternative hypothesis be?
What will be an ideal response?