Pyramids of biomass

Biomass is...

• The number of living things

• The mass of all the organisms at one level in a food chain when dried out

• The mass of all the living things in a food chain

• The amount of energy in the organisms

Overlapping food chains in an ecosystem make up....

• food web
• food chain
• niche
• symbiosis

Tags

NGSS.MS-LS2-3

All food webs and food chains begin with _________________.

• primary consumer
• producers
• secondary consumers
• predators

Tags

NGSS.MS-LS2-3

A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?

• A
• B
• C
• D

Tags

NGSS.MS-LS2-3

In this ecological pyramid which type of consumer gets only 10% of the energy stored in plants?

• Herbivore
• Carnivore
• Omnivore
• Secondary Consumer

Tags

NGSS.MS-LS2-3

Only about ten percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is typically

• used in reproduction
• stored as body fat
• stored as body tissues
• converted to heat and lost

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-7

If these organisms were arranged in an ecological biomass pyramid, which organism would have the least amount of biomass?

• coyote
• insect
• lizard
• shrub

Tags

NGSS.MS-LS2-3

What does a pyramid of numbers compare?

• the number of individual organisms at each trophic level

• the number of individuals in each population

• the number of predators and prey in an ecosystem

• the number of different populations at each trophic level

What level often has the most number of organisms in a pyramid of numbers?

• the bottom level (producers)

• the second level (herbivores)

• the third level (primary carnivores)

• the top level (secondary carnivores)

Which of the following examples would result in an inversion of a pyramid of numbers?

• a tree with thousands of spiders

• a forest of trees with a small herd of deer

• a tree with a spotted owl

• a forest of trees with a pack of wolves

Tags

NGSS.MS-LS2-4