A) Oak leaves. B) Grass. C) Dandelions. D) Milkweed.
A) Spring. B) Winter. C) Fall. D) Summer.
A) Natural predators. B) Competition with other species. C) Climate change. D) Loss of habitat.
A) United States. B) Mexico. C) Costa Rica. D) Canada.
A) Fruit. B) Nectar from flowers. C) Tree sap. D) Vegetables.
A) Danaus plexippus. B) Papilio machaon. C) Lycaena phlaeas. D) Aglia tau.
A) Alaska. B) Hawaii. C) Vermont. D) Texas.
A) Climate variability. B) Habitat loss due to agriculture. C) Increasing predator populations. D) Overpopulation of monarchs. |