Answer:
That statement described a tissue.
Answer:
Constant variables
Explanation:
Elaina's investigation lacked the critical ingredient of constant variables which are important components of every scientific investigation. In every research, there are 3 important variables, namely:
1. Dependent variables: the actual variable to be measured during the course of investigations and whose values are dependent on another variable (independent variable) supplied by the investigators.
2. Independent variable: one of the variables that are supplied by investigators whose values are often manipulated to see the kind of changes it will cause to the dependent variable.
3. Constant variables: other variables that are neither independent nor dependent but constant for all the various experimental groups in investigations.
Answer:
The answer is due to oxygen deficiency
Hope this helps you.
The pulmonary vein carries oxygenated blood from the lungs to the left atrium
The answer is A
Explanation
The liquid is like a existence but it is like a tides but more detail
