24. Exponential phase is linked to: A. Depletion of nutrients. B. Adaptation phase. C. Unbalanced growth. D. Cryptic growth. E. Doubling in cell size. F. All answers are correct. G. All answers are wrong.

a- Removing live acorn barnacles stimulated the growth of macroalgae b-  macroalgae dominated the occupation of the surface of rocks after four years and their success was greatly increased relative to controls when both barnacle species were removed. c- acorn barnacle shells facilitate  algal density on rocks d- acorn barnacles increase there coverage of rocks when little brown barnacles reach their highest density and seem to replace little brown barnacles on the rock during 1985

In the early 1800s, potatoes became the main food staple for the people of Ireland. In 1845, a fungus native to South America, Phytophthora infestans, began to infect potato plants, causing potato blight and making the tubers inedible. Over the next several years, most of the potato plants in the country were destroyed by this invasive species. Which of the following statements correctly explains why the Irish potato famine occurred? The arrival of ships from South America led to human introduction of the disease. A drought across Ireland in 1844 led to more damaged potato plants that were susceptible to infection. An increase in trade with other European countries led to the introduction of plants that were already infected with the fungus. Ireland's climate became closer to that of South America, which allowed the fungus to infect potato plants and reproduce.

The targets for anti-fungal drugs are much more limited than antibiotics or anti-viral medications. Why? a. There are more bacteria and viruses than fungi. b. Fungi can only be targeted during sexual reproduction, while bacteria and viruses can be targeted at any point in their lifespan. c. Fungi cause topical infections, while viruses and bacteria cause systemic infections. d. Human cells are much more similar to fungi cells than bacteria or viruses.