Generalist and specialist.
what are there impacts on an ecosystem?

answer:

explanation:

a generalist species is able to thrive in a wide variety of environmental conditions and can make use of a variety of different resources (for example, a heterotroph with a varied diet). a specialist species can thrive only in a narrow range of environmental conditions or has a limited diet.

c genetic engineering

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.