Observe esquema da pele e responda as questões
a) quais são as camadas da pele apresentada no esquema pelas letras a e b
b) qual a importância da camada de caratina existente na superfície da pele
c) que tecido compõem a hipodérmica

The image shows ekgs of a person with normal heart waves and of a person having tachycardia. based on this image, what kind of condition is tachycardia? a. the heart beats abnormally fast. b. the heart beats abnormally slow. c. the right atrium of the heart stops working. d. the left ventricle pumps less blood to the aorta.

What type of specimens where you able to see under each of the microscopes in the microscope activity

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.