Why can’t the evolutionary relationships between certain species be explained thoroughly?
a. their fossils are too large to study.
b. they have different physical characteristics.
c. a link is yet to be discovered.
d. the species are poorly related to each other.

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.

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Iwanna go do something with my ideas? ?