-EN CUANTO A LA CLASIFICACION DE LOS ANIMALES ES DETERMINANTE LA COLUMNA VERTEBRAL Y LOS QUE NO TIENEN COLUMNA VERTEBRAL PODRIAS INDICAR LA DIFERENCIA?​

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.