Ecology

If a scientist in New Zealand was studying how a group of herbivores interacted with a group of omnivores, and all of their abiotic surroundings, what level of ecology would she be studying?

• Community

• Population

• Species

• Ecosystem

• Biome

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is the PRODUCT of the process used by producers that is passed on as energy throughout an ecosystem?

• photosynthesis

• Sun

• glucose

• carbon dioxide

• water

Tags

NGSS.MS-LS1-6

If there are 100 KJ of energy available at the secondary consumer level, how many KJ of energy are available at the producer level?

• 10 KJ

• 1,000 KJ

• 10,000 KJ

• 1 KJ

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the carrying capacity of the graph?

• around 500

• more than 800

• less than 300

• around 700

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators
• disease
• increase in available food
• drought

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When death rate is equal to birth rate...

• population increases

• population decreases

• population stays the same.

• population rapidly increases then becomes stable

What will happen if all of the frogs in a population die?

• The frogs' predators will decrease and the frogs' prey will increase

• The frogs' predators will increase and the frogs' prey will decrease

• We better all pray because there isn't anymore frogs.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

• stopped reproducing

• reached carrying capacity

• mutated into a different species

• run out of food and all died

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

2 factors which increase population size

• Birth Rate, Immigration
• Death Rate, Immigration
• Birth Rate, Emigration
• Death Rate, Emigration

Tags

NGSS.MS-LS1-5

Which graph depicts exponential growth in a population?

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