Humans can change the abiotic components of an ecosystem. plowing of farmland can lead to which of the following? question 9 options: better water quality better air quality increased soil erosion less sun exposure

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.