Visitor activity

knmk

Public contributions from visitors who posted under the name knmk.

Questions 425
Answers 0

Recent questions

Latest questions from knmk

Consider the following food chain: Plants are eaten by grasshoppers, which are eaten by mice, which are eaten by snakes. What would happen to the other members of the food chain if the plant population was wiped out? a....
1 answer
Which of the following statements about migration is true? a. Migration is always from one region to another. b. Animals always migrate within a region. c. Migration always negatively impacts an ecosystem. d. Animals mig...
1 answer
Organisms can have positive or negative impacts on the ecosystem they live in. The cane toad, or Rhinella marina, was introduced to the Hawaiian Islands in 1932 by sugar cane farmers. Farmers released the toads in their...
1 answer
Energy flow in an ecosystem is best represented by _______. a. the predator/prey relationship b. food chains c. food webs d. autotrophs Please select the best answer from the choices provided A B C D
1 answer
Which shows the correct order of increasing trophic level, from producer to tertiary consumer?
1 answer
Scientists use different types of models to analyze the structure of ecosystems. Which characteristic is seen in a biomass pyramid, but not in a numbers pyramid? the total number of trophic levels in an ecosystem living...
1 answer
In a trophic pyramid, which of the following populations would be found in the trophic level directly above the producers? a. hawks b. rabbits c. snakes d. trees Please select the best answer from the choices provided A...
1 answer
Which of the following has the most biomass? a. quaternary consumers b. secondary consumers c. primary consumers d. producers Please select the best answer from the choices provided A B C D
1 answer
Which of the following would not reduce the carrying capacity of an ecosystem for a particular prey species? a. drought b. fewer primary producers c. habitat destruction d. fewer predators Please select the best answer f...
1 answer
Which of the following would be considered a limited resource in the lower depths of the ocean? a. water b. sunlight c. prey d. predators Please select the best answer from the choices provided A B C D
1 answer
Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading? a. acidification of the water b. algae growth as a result of eutrophication c. degraded quality of water for human and livest...
1 answer
Arrange the events of succession after a volcano erupted in their proper order. a. pioneer species, plant growth, soil formation b. pioneer species, soil formation, plant growth c. soil formation, pioneer species, plant...
1 answer
What types of organisms would you expect to see in an area that recently experienced a volcanic eruption? a. trees b. mosses and algae c. grass and bushes d. all types of organisms in fewer numbers Please select the best...
1 answer
A recent study has shown an increase in the number of predators in an ecosystem. Which of the following is not a possible cause for the growth? a. An increase in the land space available b. An increase in the population...
1 answer
Suppose a predator species became extinct over a short period of time. Which of the following would most likely happen to that predator’s prey species in the short term? a. They will increase in numbers. b. Their numbers...
1 answer
In general the warmest biomes in the world are found _______. a. at the poles b. in the southern hemisphere c. near the equator d. on the western coasts of continents Please select the best answer from the choices provid...
1 answer
Which of the following is not a freshwater ecosystem? a. lakes b. rivers c. seas d. springs Please select the best answer from the choices provided A B C D
1 answer
Which ecosystem contains 32% of the world's producers? a. terrestrial ecosystem b. freshwater ecosystem c. aquatic ecosystem d. marine ecosystem Please select the best answer from the choices provided A B C D
1 answer
Which biome is prominent in North America? a. taiga b. savanna c. rainforest d. chaparral Please select the best answer from the choices provided A B C D
1 answer
The biosphere is best described as the regions of Earth that support _______. a. plant life b. animal life c. all life d. human life Please select the best answer from the choices provided A B C D
1 answer
Identify the biotic factor of an ecosystem from the following: a. soil composition b. trees c. temperature d. sunlight Please select the best answer from the choices provided A B C D
1 answer
The community is the lowest level of the biosphere’s organizational hierarchy to include members of different species. Please select the best answer from the choices provided T F
1 answer
Which type of environmental scientist is most likely to study the effects of air pollution on asthma? a. Hydrologist b. Toxicologist c. Environmental physician d. Ecologist Please select the best answer from the choices...
1 answer
Which of the following is likely to be researched by an environmental scientist? a. the effect of oil spills on marine animals b. the anatomy of a platypus c. the chemical composition of a compound d. the velocity of a c...
1 answer
Which of the following is likely to be researched by a toxicologist? a. the effect of natural disasters on the environment b. the effectiveness of current environmental law c. the effect of species loss on the environmen...
1 answer

Recent answers

Latest answers from knmk

No public answers found for this visitor name.