<span>The major function of bone marrow is to generate blood cells and the red is found in flat bones like the hip.</span>
Answer:
gene
Explanation:
because that's what we get from parents, genes
The disease-causing bacteria (S strain) grew into smooth colonies on culture plates, whereas the harmless bacteria (R strain) produced colonies with rough edges. The difference in appearance made the two strains easy to tell apart. ... When he injected mice with harmless bacteria, the mice stayed healthy.
3:they are usually microscopic