Answer:
A. the frequency will decrease because all mutations are harmful, thus People with the mutation will die.
B. long fibres in celery
(I've done an experiment in my science class once on xylem tissue on celery)
Answer:
True
-----------------
Because skeletal muscles to bring about rapid contractions that generate heat.
Prokaryotic and Eukaryotic cells are different in many ways other than the presence or absence of a nucleus. If both archaebacteria and eubacteria are prokaryotic cells, then why are archaebacteria more closely related to eukaryotic cells than they are to eubacteria?
