You are confronted with a box of preserved grasshoppers of various species that are new to science and have not been described. your assignment is to separate them into species. there is no accompanying information as to where or when they were collected. which species concept will you have to use?

all answers true and false

explanation:

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.