Question

14. Which statement about trophic levels is NOT true? A) Plants are autotrophs and occupy the first trophic level. B)Detritivores consume waste products or dead bodies. C)Biomass and energy increase going up the food chain. D) There are typically fewer predators than prey in an area. 15. The relationship between a lichen and an algae is best described as __ A) predation B) parasitism C) herbivory D) mutualism E) competition 16. This biome describes the region between the Mississippi River and the Rocky Mountains, characterized by limited precipitation, thick organic soils, and extreme temperature variation in winter and summer A) Temperate deciduous forest B) Chaparral C) Desert D) Temperate rainforest E) Temperate grassland 17. Describes biome in the eastern United States, north central Europe, and eastern China; characterized by stable precipitation and seasonal temperature variation A) Temperate deciduous forest B) Chaparral C) Desert D) Temperate rainforest E) Temperate grassland 18. Zebra mussels A) are native to Canada B) were introduced into the United States in the early 1900s C) are presently restricted to the Great Lakes and Hudson River, but they are expected to spread rapidly in the near future D) are an invasive exotic species that clogs water intake pipes at factories, power plants, and wastewater treatment facilities E) excrete waste that facilitates algae blooms and subsequent eutrophication of lakes 19. Detritivores include A) oak and poplar trees B) algae and photosynthetic bacteria C) millipedes, soil insects, and many ants !

Answer 1

Note: Only the first four parts/questions can be answered at once. The first four (14-17) are answered.

Question 14:

Answer: Option C) Biomass and energy increase going up the food chain.

Explanation: Biomass and energy decrease going up the food chain instead of increasing. Going up the food chain the organisms are bigger and need more area and energy for metabolic activities from the ecosystem.

Question 15

Answer: Option D) Mutualism

Explanation: Mutualism is a relationship in which both organisms benefit. In the relationship between lichens and algae forms as the algae can grow on the lichen dry surface and the fungus can obtain photosynthates from the algae.

Question 16

Answer: Option E) Temperate grasslands.

Explanation: The description of the environmental conditions suggests that it is the characteristics of temperate grasslands.

Question 17

Answer: Option A) Temperate deciduous forest.

Explanation: The description of the environmental conditions suggests that it is the characteristics of temperate deciduous forest.