What is speciation? A. when a species begins reducing the size of its population
B. the evolution of a new species through a change in the
environment that separates a population
C. when a species outcompetes another and the species
become extinct
D. when a new allele created in a species and the
frequency of the allele changes

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Which law represents a balanced chemical equation?