Which of the following cells are alive at maturity?

a. sieve tube members
b. vessel members
c. tracheids
d. vessel members and tracheids
e. sieve tube members and vessel members


Answer: a

Biology & Microbiology

You might also like to view...

Two databases, OMIM and Mitomap, are especially useful in exploring human mitochondrial mutations

If you are interested in learning whether aminoglycoside-induced deafness is inherited maternally, and what gene(s) is/are involved, which of the following would give you the most information? A) the Mitomap position map with gene names B) the sequence with specifically altered amino acid coding C) the OMIM description of symptoms and diagnosis D) the OMIM description of the TRMU gene at 22q13 E) the Mitomap loci of genes associated with deafness

Biology & Microbiology

The atrioventricular valves are closed when the

A) right atrium is contracting. B) P wave of an electrocardiogram appears. C) heart is completely relaxed. D) ventricles contract. E) ventricles are relaxed.

Biology & Microbiology

Figure 40.5A The letter "B" in the above figure represents a(n) _____.

A. kidney B. urethra C. urinary bladder D. ureter E. Bowman's capsule

Biology & Microbiology

In ABO blood typing, ____occurs when the patient's blood sample is mixed with antibodies that recognize the H antigen on the red blood cells.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology