When two heterozygous round seeded plants are crossed what is expected of their offspring assuming random chromosome segregation

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

Are salt and soap nutrients or toxins for yeast? explain.

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.