The major reason for the oceans producing only 9% of Earth's biomass is d - Primary producers in the oceans are in effect limited by nutrients.
This is because the availability of essential nutrients such as nitrogen and phosphorus is limited in the ocean, and this limits the growth of primary producers such as plankton and seaweeds, which are the basis of the ocean food web.
As a result, there is much less biomass produced in the ocean than on land.
Final answer:
The major reason for the difference in biomass production between the world's oceans and land is the limited availability of nutrients for primary producers in the oceans and the complexity of food chains, resulting in a higher loss of biomass.
Explanation:
The major reason for the difference in biomass production between the world's oceans and land is the availability of nutrients and the complexity of food chains in the oceanic environment.
In the oceans, primary producers, such as phytoplankton, play a crucial role in biomass production. These microscopic organisms rely on nutrients like nitrogen and phosphorus to grow and reproduce. However, the availability of these nutrients in the ocean is often limited, which restricts the growth of primary producers and subsequently reduces the overall biomass production.
Furthermore, the food chains in the ocean are much more complex compared to those on land. As energy is transferred from one trophic level to another, some energy is lost as heat or used for metabolic processes. This energy loss results in a decrease in biomass at each successive trophic level. The complexity of the food chains in the ocean leads to a higher loss of biomass, contributing to the lower overall biomass production in the oceans.
Human activities, such as overfishing and pollution, also contribute to the decline in marine biomass. Overfishing disrupts the balance of marine ecosystems, leading to a decrease in the population of certain species and a subsequent decrease in biomass. Pollution, including nutrient runoff and oil spills, can also negatively impact marine ecosystems and reduce biomass production.
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b. humid tropical
c. tundra
d. Mediterranean
Answer:
b. humid tropical
Explanation:
i think that the answer is B.
but if not than its D but im going with B
hope i helped
B)Throughout tropical wet zones
C)Throughout every continent
D)Predominantly along costal areas of tropical zones
Answer:a
Explanation:took the test
b. Derrick, who lives near the Shenandoah Mountains, spends most weekends hiking.
c. Jocelyn, who lives in Boothbay Harbor, Maine, makes her living by selling lobsters to local restaurants.
d. Maria, who lives in Juneau, Alaska, has an older brother and a younger sister.
e. Penelope, who lives in the San Juan Islands, seldom leaves her house without an umbrella.
Answer:
B, C, E.
Explanation:
I think that the best answers to your question would be B, C, E.
Answer:
Hello!
Your answer will be B. Hunt / Farm full-time!
Explanation:
After years of searching for this tribe of people, archaeologists found a Mogollon settlement in Mexico with provided evidence of their farming!
They found remains of CORN and SQUASH...
HOPE THIS HELPS!!
Earth's distance and tilt affect the relative amounts of solar radiation regions receive.
Earth's distance and tilt affect the relative amounts of solar radiation regions receive. There are no options provided in the question, but this is the correct answer. The earth's orbit is not circular and the earth rotates in a tilted orbit. Whenever the south pole is tilted towards the sun, then the south pole will get more solar radiation than the north pole.
Answer:
Shield volcanoes
Explanation:
Shield volcanoes are usually built almost entirely of lava fluid flows.
there's your answer hope I helped!!