The vaccine was made in the past year, and the flu virus has mutated and grown resistant to this year's flu vaccine
<span>A. endoskeleton
</span>Endoskeleton is not a characteristic of Arthropods that has attributed to their diversity and success. Endoskeleton is defined as inner characteristics of the skeletal feature of an organisms such as bears, humans, fish and etc.
Exoskeleton on the other hand is the trait by which arthropods posses. It is skeletal feature that is described outside or is extrinsic, this is evident as crabs have their skeletons outside of their body.
1 is nucleic acids and 2 is nucleic acids
Para mi opinión creo que es la repuesta correcta el encéfalo consta de 3 parte el “cerebro, cerebelo y bulbo raquídeo” respuesta
The basic unit of life is a cell. Have a great day!