10. Read the passage and answer the following question(s). Directions: The information is from a news bulletin about wildfires. Use the news bulletin to answer any questions that follow.

The wildfires suffered by East Texas in the fall of 201 were extremely severe. Wildlife biologists have determined that the fires burned meadow and forest ecosystems to the extent that grasses and wildflowers will not recover quickly. The decreased herbaceous ground cover has diminished food for native insects. As insects have declined the Houston toad has lost both ground cover for homes and a major source of food it may take years for Texas population of Houston toads to reach its former level The news report suggests that the Houston toad will have a stable breeding population only if the populations of grasses wildflowers - and

A are restored to their levels before the wildfire.

B. equal the current population of Houston toods.

C. are reduced from their levels before the wildfire.

D. equal the mass of the current insect population.

chlorophyll a: this is the most abundant pigment in plants. chlorophyll a absorbs light with wavelengths of 430nm(blue) and 662nm(red). it reflects green light strongly so it appears green to us.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.