Nucleic acids would be the answer to your question
Answer:
1.All living things are composed of cells.
2.Cells are the basic units of structure and function for living things.
3.All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.
Answer:
The correct answer is - option B. They are small because they lack a nucleus.
Explanation:
Red blood cells or erythrocytes are specialized cell that produce in bone marrow and have specific role such as carrying oxygen from lungs to deliver it to the various organs and carry out carbon dioxide.
In mammals these cells lack cell organelles such as nucleus and mitochondria, a major factor that determined its smaller size. The size of RBC are move through narrow vessels throughout a organism because of its specific size and shape that provide it space for hemoglobin and allow to be flexible and bend to move through narrow vessels.
Thus, the correct answer is : option B. They are small because they lack a nucleus.
The three correct choices are A, C and D
Boa constrictor is a specie of snake that eats sloths and coatis. Sloth and Coatis are primary consumers that eat strangler figs. If the boa constrictor are removed from the rain forest then the number of sloths and coatis in the forest would increase ans as their number will increase they will start consuming the strangler figs and their amount would decrease.
The answer would be lipids, they are a type of biomolecule and a nucle is an organelle
