Each vertebrate subgroup is classified based on its common characteristics. Choose the vertebrate subgroup that is poikilothermic * 2 points

(a) Mammal

(b) Fish

(c) Reptile

(d) Bird

(e) Amphibian

What is the importance of a system of classification of living organisms?

Apatient has an open displaced fracture of the second cervical vertebra. this is her fifth visit and the fracture is healing normally. what icd-10-cm code is reported?

What is a dendrite and what does it do?

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?