many organisms in the deep sea live in conditions where resources are rare and populations are small and sparse. many of those species are also hermaphroditic. which of these is a plausible explanation for high rates of hermaphroditic species there?

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".