Which is an example of a genetically modified organism that is not a transgenic organism? (Note that none of these organisms currently exist!) O an orange that had its own genes altered so that it will produce extra juice
O a radish that has genes from a jalapeno pepper added to it to make it spicier
O an oat plant that is sprayed with only with natural pesticides so that it grows larger
O a pig that has had cow growth hormone genes inserted into its cells so that it will produce more meat

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".

c should be the answer

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.