6th Grade Summer 23 Enrichment Science Review

Which factors will most likely INCREASE as a result of this biological change? Select ALL that apply.

• A. Price of orange juice
• B. Availability of oranges
• C. Populations of orange trees
• D. Population of fungi

Which factors will most likely DECREASE as a result of this biological change? Select all that apply.

• A. Price of orange juice
• B. Availability of oranges
• C. Populations of orange trees
• D. Population of fungi

Which layer of the rock strata contains the youngest fossils according to the law of superposition?

• Triassic

• Bulli Coal Seam

• Permian

Organisms depend on ______ factors in their environment for survival.

• biotic

• abiotic

• both biotic and abiotic

Which layer of the rock strata contains the oldest fossils according to the law of superposition?

• Triassic

• Bulli Coal Seam

• Permian

The carrying capacity of an ecosystem is based on _______.

• the amount of available resources

• the evolutionary history of the species

• the worldwide population of the species

In this relationship, ​ _______ is a resource that ​ ​__________ needs to survive.

• the prey population,

  the predator population

• the predator population,

  the prey population

Which of the following statements best describes what most likely happened to the populations of wildflowers native to America?

• Native wildflower populations have increased because their predators are more interested in eating dandelions than native wildflowers.

• Native wildflower populations have remained the same because dandelions occupied different habitats.

• Native wildflower populations have decreased due to the dandelions competing for space and resources.

Most efforts to stop the spread of these pythons have not been successful. How much do you think the ecosystem will change in the next 100 years if the pythons remain a part of the ecosystem?

• Other predators will have an increase of food and with that there will be enough food to go around for the pythons, bobcats, and coyotes to survive in the same habitat.

• Other predators may not have enough food to survive and will move away or die.

• Pythons will have no food source in areas where bobcats and coyotes live.

Why is asexual reproduction a faster process?

• Asexual reproduction involves one parent and copies its own DNA.

• Asexual reproduction involves two parents and requires DNA from both.

• Asexual reproduction is not a faster process than sexual reproduction.