(( earth science ))

which process or processes are involved in the sinking of cold ocean plates into the mantle?

a.
mantle plumes acting at hot spots

b.
slab-pull acting at subduction zones

c.
ridge-push acting at mid-ocean ridge

d.
slab-pull and ridge-push acting together

Which would be the most useful source of evidence to support mcneill's contention?

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked