Biology
DNA exists in the form of __________ strands of DNA coiled about each other.
Double
A cell uses which of the following to accelerate chemical reactions enabling its metabolic machinery to operate?
Enzymes
Which of the following directly (as opposed to indirectly) supports Charles Darwin's theory of evolution?
Evidence from Genetics
In humans, how do the sex chromosomes differ between males and females?
Females have two X chromosomes and males one X chromosome and one Y chromosome
The functional unit of heredity is the _____________.
Gene
__________ occurs when organisms of different species mate and form offspring.
Hybridization
When sexual reproduction occurs in multicellular organisms, a process takes place before cells fuse whereby a cell is left with half of its chromosomes, enabling the creation of a cell with a characteristic chromosome number. What is this process called?
Meiosis
Many animals protect themselves with an exoskeleton. Which of the following is an example of an animal with an exoskeleton?
Mollusk
Locomotion in Metazoa is usually due to the contraction of what?
Muscle
The phrase "survival of the fittest" is an alternate phrase expressing which of the following principles?
Natural Selection
Genes are located within the cytoplasm of the cell.
Nucleus
What it is the name given to specialized structures within cells responsible for carrying out specific functions such as providing energy and producing hormones?
Organelles
The net effect of photosynthesis, chemically, is reduction, leading to the formation of which products?
Oxygen and carbohydrates
Light initiates different types of cellular reactions. Which of the following responses to light converts the energy from light into a gain of potential energy?
Photosynthesis
The bodies of all insects have _______ major divisions.
3
How many chromosomes does an individual human person have?
46
A multicellular organism is:
A group of differentiated eukaryotic cells that work together to support the function of an organism
The term thallus refers to the plant-like structure of which of the following organisms?
Brown algae
Single-celled protists with animal-like behavior belong to the phylum _____________
Protozoa
Genetic information is transferred from the nucleus to cytoplasm by way of _______________.
Ribonucleic acid
A cell membrane is ______________?
Semipermeable
Sterile female honey bees are called ________________
Workers
In normal sexual reproduction, two mature gametes fuse to form a(n) _____________
Zygote
Which of the following organisms is a vertabrate?a.Frogs b.Insects c.Earthworms d.Sea stars
a. Frogs
Which of the following represents the largest group of biological classification? a. Kingdom b. Species c. Class d. Genus
a. Kingdom
There are two types of cells, eukaryotic and prokaryotic. Which of the following cellular structures are found in both types of cell? a.DNA b.Golgi apparatus c.Mitochondria d.Chloroplast
a.DNA
Which of the following is not part of the metabolic sequence? a. Photosynthesis b. Respiration c. Hydoplasm d. Digestion
c. Hydoplasm
All of the following are similarities between unicellular organisms and multicellular organisms, except _____________. a. Internal complexity b. Division of labor c. Size d. Ecological relationships
c. Size
Changes in the genetic makeup of an organism may be due to which of the following? a. New combinations of chromosomes b. Chromosome mutation c. Gene mututation d. All of the above
d. All of the above
Which of the following are NOT organelles found in animal cells? a. Nucleus and golgi apparatus b. Cellular membrane and cytoplasm c. Mitochondria and ribosomes d. Chloroplast and central vacuole
d. Chloroplast and central vacuole
