La secția de primiri urgențe a unui spital este adusă o persoană care va fi supusă unei intervenţii chirurgicale. Este necesară și realizarea unei transfuzii cu o cantitate mică de sânge. Știind că donatorii posibili pentru această persoană au grupele de sânge O și A, precizați tipul de aglutinină (anticorp) caracteristică donatorului cu grupa sanguină A

Chinese privet is a plant that is native to china. over 150 years ago, chinese privet was introduced to the united states as a fast-growing shrub that serves as an excellent privacy hedge. with no natural herbivore, chinese privet quickly established itself and spread in natural areas throughout the southeast and eastern seaboard of the united states. its dominance in these areas has jeopardized the survival of native plant species. chinese privet provides evidence that introducing non-native organisms can cause environmental damage integrated pest management strategies will not decrease chinese privet populations american gardeners can easily control the spread of chinese privet non-native plant species have type i survivorship curves

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.