based on the excerpt, which statement best summarizes the author’s beliefs about the disappearing species? the loss of plant species and habitats will lead to widespread animal extinction. the loss of plant species and habitats will lead to environmental problems in remote regions. the loss of plant species and habitats will displace animals and decrease human wealth. the loss of plant species and habitats will devastate animals and hinder human progress.

Differentiate renewable and nonrenewable resources

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.

Homo heidelbergensis was a tall, muscular hunter, who used both tools and weapons. because h. heidelbergensis was not a gatherer/forager, but ate a varied diet including meat and fish, we would expect to see what anatomical changes?