Ecology - Biodiversity & Conservation Questions and Answers

Which of the following examples best illustrates how climate change affects components of an ecosystem? A heavy rainstorm causes trees to fall and surface debris to wash away, exposing fresh soil inmwhich seeds germinate. A long-term decrease in the amount of Arctic sea ice causes polar bears to forage for food onland, putting them in competition with grizzly bears. Increased nutrients in lakes cause algal blooms, which decrease dissolved oxygen levels and block sunlight, killing underwater plants.

Which ritual is used to speak to the ancestral spirits? sangoma winnowing tray ritual blowing of smoke raising of leaves

Which of the following is a direct result of the current extinction rate being higher than the speciation rate? Choose 1 answer: BBiodiversity on Earth is decreasing. Biodiversity on Earth is increasing. Biodiversity on Earth is staying about the same.

Resource partitioning is when species _____ to help avoid competition within an ecological niche. divide limited resources obtain limited resources find new limited resources no longer use limited resources

In many parts of the world, clean water is more of a luxury than a right. There is a whole section of town in Mumbai, India, that has no access to clean drinking water. Mumba largest cities in the country, so if they don't have clean drinking water, then most people in India must lack access to it as well. Something should be done to h- maintain their water systems more effectively. Which version of the text best accomplishes this goal? As it is now In fact, according to a 2017 study, approximately 24% of the most impoverished areas of Mumbai do not have access to drinking water. In fact, Mumbai is not atypical when it comes to this inadequacy; people say that most of the cities in the country lack safe drinking water. In fact, there have been many articles written about the lack of clean drinking water throughout the entire country, and not just in Mumbai.

Which ecosystem profile below has the greatest biodiversity? A.) An area with 250 birds of 3 different species, 300 trees of 6 different species, and 100 mushrooms of 4 different species. B.) An area with 500 birds of 3 different species, 400 trees of 6 different species, and 200 mushrooms of 4 different species. C.) An area with 250 birds of 5 different species, 300 trees of 9 different species, and 100 mushrooms of 7 different species.

Components of an emerging global awareness of the dynamics of Earth includes a. satellite monitoring. b. fixed and free-floating buoys in the ocean. c. camera arrays deployed across places like the Serengeti. d. citizen and community science. e. all of the above.

(T/F) Whether or not our activities have strongly affected extinctions of other species, the effective number of species, calculated from the Shannon index, has dropped precipitously in broad groups including carnivores and ungulates.

Which of the following currently poses the single greatest threat to biodiversity? a. habitat loss b. invasive species c. pollution O d.overhunting

Islands harbor unique biodiversity that is at great risk due to human activities. Explain this statement in full (why is island biodiversity unique, and how do human activities threaten it), providing details covered in class. Limit your sources to those used in class (textbook, assigned readings, lecture notes). Do not use Google or other outside sources.

For a physician, treating a biofilm infection in a patient poses a significant challenge compared to treating an infection with planktonic bacteria. This is due to the fact that ______. the biofilm likely contains several different species of bacteria living in a thick, extracellular matrix that cannot be treated by routine antibiotic therapy planktonic bacteria and biofilm bacteria activate the same genes despite being a thick layer, the pH remains constant throughout the biofilm making the deep layers hard to penetrate planktonic bacteria secrete quorum-sensing proteins that interfere with the actions of the antibiotic

Olduvai Gorge is the scientist who discovered the first hominin site the first hominin remains ever discovered a canyon cut into the Serengeti Plain of Tanzania known for its hominin sites none of the above

In this week's Population Demographics Lab activity, what pattern(s) of suvivorship (i.e., what types of survivorship curves) did the Rhode Island populations you studied display in your graph? O Type I Survivorship O Type II Survivorship O Type III Survivorship O Type I & Type II Surviorship O Type I & Type III Survivorship

Shrimp farming, an aquaculture business that produces shrimp for human consumption, has been on the rise. Consequences of this include pollution of groundwater and coastal estuaries, food webs collapsing, declining biodiversity, and habitat loss. Since 2013, multiple countries and independent fish farms have adopted new standards in shrimp farming to reduce the negative impact on the environment, while still being able to produce enough shrimp for consumer demand. How will this change affect impacted ecosystems in the countries that adopted the new standards? biodiversity will decrease local populations will stabilize food webs will begin to collapse the ecosystem will experience habitat degradation

Which is the most accurate definition of industrialization? A. The process of developing machines to produce goods. B. The practice of investing money in businesses. C. The conversion of farm land to railways.

What causes global convection currents to form?

How does deforestation lead to the extinction of species? ct one: It reduces the amount of oxygen in the atmosphere. It destroys the habitats organisms need to survive. It results in fewer offspring by altering mating behaviors. It increases the number of predators found in the area.

Biodiversity can be described using various scales. Which of the following can be used to describe biodiversity? Choose all that apply: Ecosystem Individual Genetic Species

An ecosystem contains blue whales, sea otters, giant kelp, and various species of phytoplankton. What type of biodiversity is being described? Select one: Genetic diversity. Ecosystem diversity. Trait diversity. Species diversity.

The flat, fertile area around a river is called a A. delta B. plateau C. rain forest