Rough-skinned newts and common garter snakes are in an "evolutionary arms race." In this phenomenon, two species continually evolve adaptations against one another to increase their own chance of survival. Rough-skinned newts produce tetrodotoxin, a type of poison, as a defense mechanism. Most common garter snakes have some resistance to the toxin. In areas where common garter snakes and rough-skinned newts coexist, rough-skinned newts express very high levels of tetrodotoxin, and common garter snakes have evolved a very high degree of resistance to tetrodotoxin.Based on this information, what is the most likely relationship between common garter snakes and rough-skinned newts? A. obligate parasitism B. facultative mutualism C. commensalism D. predator and prey

Garter snakes and rough-skinned newts are ______ because adaptations in both species result directly from interactions with the other species.Multiple choice question.coevolvingparasitesprey animalsin mutualism

Different species in snakes

Forelimb of frog, lizard, bird and man has some evolutionary relationship.

Read the following passage.The poison arrow frog, which resides in the tropical forests of South America, has enough toxicity on its skin that a dart rubbed across the surface of the body can kill a small mammal. Scientists have found that venomous excretions are a result of a diet of beetles, which causes a chemical reaction to produce poison sweat. When the frogs no longer have beetles to devour, their poisonous abilities disappear.Which of the following effectively paraphrases this text? Darts dipped in the sweat of poison arrow frogs are used to kill small animals and provide food to villages in the forests of South America. The poison arrow frog is lethal to some animals because of its love for eating beetles, which react with its body chemistry to make contact with its skin deadly. The poison arrow frog has venomous secretions as a result of a diet of beetles that causes poisonous sweat due to a chemical reaction. Poison arrow frogs are venomous because they eat insects.

Select all the true statements about amphibians.Multiple select question.some have toxins in their skincan control populations of insectsimportant source of food for humansthin skins must be kept moistsome are parasites of humanssome eat algae