<span>Red Blood Cells (also called erythrocytes or RBCs) ... The red blood cell survives on average only 120 days. Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled.</span>
d. scientific theory
Explanation:
The statement that all living things like planktons are made up of cells is a true scientific theory.
All living organisms are made up of cells and all cells are derived from pre-existing cells is the first and most fundamental postulate of the cell theory.
- the concept that living things are made up of cell is from the cell theory.
- the cell is the fundamental unit of life.
- the cell theory provides an explanation into cells as the unit of life
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Answer:
No.1 - all living beings do not need the same kind of food. Some animals eat only plant products called as herbivores. ... Some other animals eat both plants and animals called omnivores
No.2 - : Humans aren't amphibians
Explanation:
Humans are mammals they give birth to live young and feed them with milk produced by their
The giraffes with the longer necks will be able to eat easier and the ones with the shorter necks will have a harder time eating so will most likely die faster then the others