Which of the following characteristics is (are) possessed in common by true mosses, ferns, and spike mosses, and therefore becomes useless at helping to determine to which of these groups "flower of stone" belongs?
1. a sporophyte generation that is dominant
2. true leaves and roots
3. flagellated sperm
4. strobili
5. alternation of generations
A) 5 only
B) 1 and 5
C) 2 and 3
D) 3 and 5
D
You might also like to view...
Organelles are __________
A. structures that contain the genetic material. B. membrane-bound compartments of eukaryotic cells. C. the region that contains the DNA in prokaryotic cells. D. the outer, rigid covering of a prokaryotic cell.
Which of the following is present in a prokaryotic cell?
A) mitochondrion B) ribosome C) chloroplast D) ER
Large, multinucleate cells that break down bone are called:a
osteoblasts. b. chondrocytes. c. osteocytes. d. chondroblasts. e. osteoclasts
A vascular cambium cell divides to produce an inner and an outer daughter cell. Which outcome represents the probable fate of these cells?
A) Both cells continue to divide to produce wood. B) The inner cell will differentiate into xylem, and the outer cell will divide again. C) The inner cell will differentiate into phloem, and the outer cell will differentiate into xylem. D) Both cells will continue to divide without differentiating into specialized cells.