EDUTIMES
PUZZLE
BIOLOGY PUZZLE 3
QUESTIONS
ACROSS
1. Any structure that grows out from the main part of
the body (9)
4. The observable characteristics of an organism(9)
7 An organism that feeds on both plant and animal sub-
stances(8)
9. The mass per unit volume of a substance (7)
10. A two-carbon organic radical containing a methyl
group and a carbonyl group (6)
11. (in Taxonomy)A division of a kingdom that itself con-
tains one or more classes(6)
13. Combining DNA segments from distinct sources into
a single DNA molecule(11)
15. The science of gene manipulation(13)
18. Contrasting things which are entirely different(11)
20. An inverterbrate having a segmented body, external
skeleton and jointed limbs(9)
22. An asexual reproductive cell that does not participate
in fertilization(5)
23. A system that involves the movement of blood
through the body’s blood vessels(11)
24. A burrowing invertebrate having a long slender soft
body and no limbs(4)
25. A complex biological interaction and adaptation re-
sulting in unique features in both interating species(11)
26. A relationship in which two distinct types of or-
ganisms live together especially to the advantage of
both(10)
DOWN
2. A trait resulting from the combined action of multiple
genes(9)
3. An organism that absorbs nutrients from another liv-
ing organism(8)
5. A theory that describes how a ;arge host cell and in-
gested bacteria could easily become dependant
on one another for survival resulting in a permanent
relationship(18)#
6. Segments of the corolla of a flower(6)
8. Infective partice consisting of a single molecule of
DNA or RNA surrounded by a protein coat(5)
10. A member of phylum annelidia(7)
11. A motile, animal-like protist(9)
12. Having similar structure and origin but different
functions in various species(10)
14. A temporary protrusion of the surface of an amoe-
boid cell for movement and feeding(9)
15. A living organism in the environment that affects an-
other organism(12)
16. The wearing away of soil by wind, ice, water or grav-
ity(7)
17. The ability of a molecule to function as a base in
the presence of an acid and as acid in the presence of a
base()
19. An animal that eats other animals for food(9)
21. The study of heridity(8)
14