Answer:
A. heterotrophic,chitin in cell walls
Explanation:
Answer:
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
Explanation:
Answer: Tissue
Explanation:
A tissue is an ensemble of <u>similar cells and their extracellular matrix (structure) </u>from the same origin that together carry out a specific function.
Answer:
oxygen enters blood cells by 'diffusion'
