Select the correct answer. burning fossil fuels releases co2 into the atmosphere. what potential threat can it cause to earth? a. a rise in global temperatures b. a decrease in water levels c. an increase in the amount of ice in the ocean d. an inability of plants to conduct photosynthesis

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the