Question

j. which factors are used to characterize a biome, such as the desert, tropical rain forest, or temperate grasslands? select two answers.
a. biotic factors, such as plant and animal life
b. abiotic factors, such as climate and soil
c. precise lines of latitude and longitude
d. levels of greenhouse gases in the atmosphere

p. the graph presents information about the climate of dallas, texas.
graph: dallas, texas climate (average temperature and precipitation by month)
which of the following best describes this climate?
a. warm temperatures and rainy weather all year long
b. warm summers, cold winters, seasonal precipitation
c. seasonal temperatures, little precipitation
d. warm, wet summers; cold, dry winters

tm. estuaries serve which important role for marine ecosystems?
a. providing spawning and nursery grounds for many marine animals
b. adding oxygen to the ocean water
c. removing carbon dioxide from the ocean water
d. removing salt from the ocean water

Explanation:

Question μ

To characterize a biome, we consider factors that define its environment. Biotic factors (living, like plants/animals) and abiotic factors (non - living, like climate/soil) are key. Latitude/longitude lines don't characterize a biome, and greenhouse gas levels are not a main biome - characterizing factor. So the correct options are the ones related to biotic and abiotic factors.

Looking at the graph for Dallas, Texas: The temperature curve shows warm summers (higher temp) and cold winters (lower temp). The precipitation bars show that precipitation is not uniform throughout the year, meaning seasonal precipitation. Option a is wrong as it's not rainy all year. Option c is wrong as there is precipitation (not little). Option d is wrong as winters aren't dry (there is some precipitation). So the correct option is the one about warm summers, cold winters, and seasonal precipitation.

Estuaries are important for marine ecosystems as they act as spawning and nursery grounds for many marine animals. They don't add oxygen to ocean water (option b), remove carbon dioxide (option c), or remove salt (option d) in a significant way related to their main role. So the correct option is about providing spawning and nursery grounds.

Answer:

a. biotic factors, such as plant and animal life
b. abiotic factors, such as climate and soil

Question P