You are studying a group of closely related plant species that are fed upon by numerous herbivores. one of these herbivores is a caterpillar species that has evolved the ability to sequester the alkaloid that is this plant group's principal defense against all herbivores. you then construct a phylogeny of the plant species. you expect to find that the most recently radiated species in the group that co-occur with the caterpillar: select all that apply. produce a novel volatile molecule that attracts predators of the caterpillars. have lost the ability to produce the sequestered alkaloid. are found in resource-poor environments. are found in resource-rich environments.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

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.

it's false. hope i .