501. The process by which plants lose water as water vapor into the air is called:
A. Osmosis
B. Photosynthesis
C. Plasmolysis
(D. Transpiration)
502. The presence of __ gives the leaves their green color.
A. Metallic Ions
B. Hemoglobin
C. Iron
(D. Chlorophyll)
503. During the daytime, plants:
A. Inhale carbon dioxide while exhaling oxygen
(B. Inhale carbon dioxide while exhaling oxygen)
C. Inhale nitrogen while exhaling oxygen
D. Inhale carbon dioxide while exhaling nitrogen
504. Fertilization of ova in humans takes place in:
A. Ovary
B. Vagina
(C. Fallopian tube)
D. Uterus
505. The morphogenetic movement changes the hollow spherical blastula into a:
A. Embryonic disc
(B. Gastrula)
C. Morula
D. Neurula
506. Production of genetically identical copies of organisms/cells by asexual reproduction is called:
A. Mitosis
B. Replication
(C. Cloning)
D. None of these
507. The number and variety of species in a place are referred to as its:
(A. Biodiversity)
B. Biome
C. Community
D. Population
508. About 53.1% of currently known species of organisms are:
A. Animals
B. Plants
C. Invertebrates
(D. Insects)
509. The number of cells in the human body is:
A. 35 Trillion
B. 45 Trillion
C. 55 Trillion
(D. 75 Trillion)
510. They are highly organized complex entities composed of one or more cells and contain the genetic program of their characteristics. The statement refers to:
A. Biologists
(B. Living organisms)
C. Human biologists
D. Molecule biology
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