It actually says about the theory of evolution !!! as in what sequence they comes and become extinct !!! So B
An artificial heart has been altered by man in some way. Like if they had a valve replaced it becomes artificial.
This question is incomplete because the options are missing; here is the complete question:
When Amanda added table salt to the first test tube and shook it, she noted that the liquid had dissolved the
A. Solute
B. Acid
C. Solvent
D. Base
The correct answer to this question is Solute
Explanation:
Amanda's experiment involves adding a solid (salt) into a liquid and then mixing both to form a mixture categorized as a solution because one substance has disintegrated in another. Moreover, in this mixture, the liquid is considered as the solvent because this dissolves or disintegrates the salt and the salt is considered as the solute (substance dissolved). In this context, the liquid dissolved the salt or solute in Amanda's solution or mixture.
She will need to learn out how to quantitatively measure mold growth to measure the dependent variable.
Answer:
pulmonary ventilation and external respiration
Explanation:
Respiration includes pulmonary ventilation, external respiration, and internal respiration. Pulmonary ventilation is also called breathing and is the process of flow of air into and out of the lungs. It includes the flow of air between the atmosphere and the alveoli of the lungs and is driven by alternating pressure differences created by contraction and relaxation of respiratory muscles.
External respiration is also called pulmonary respiration. It refers to the exchange of gases between the alveoli of the lungs and the blood in pulmonary capillaries. The exchange occurs through the respiratory membrane. External respiration males the capillary blood rich in O2. The capillary blood loses CO2 during the process.
