Anatomy
What is the loss of calcium and phosphorous in he bone, causing brittleness?
Osteoporosis
What must all animals do to obtain food?
Eat other organisms
How many pairs of chromosomes do humans have?
23 pairs
What is Ecology?
The study of how organisms interact with their environment
DNA and RNA are polymers called ____ , and are made of monomers called ____
Nucleic acids; Amino acids
Tendons connect what to what?
muscle to bone
In all animals except sponges, the zygote/fertilized egg undergoes cell divisions that form a ______
Blastula
What is the term for a change in a DNA sequence that affects genetic information?
Mutations
What is a Population?
A group of organisms of the same species populating a given area
What type of bond holds the two strands of DNA together in the double helix?
Hydrogen Bonds
Movement away from the midline is referred to as?
Abduction
The science of naming and classifying organisms
Taxonomy
What is the term for an organisms observable trait?
Phenotype
What is the term used for a symbiotic relationship in which both species benefit from the relationship.
Example: hummingbird feeds off of and helps pollinate flowers
Mutualism
What does the pentagon, indicated by the number 1 on the figure, represent?
Sugar
A humped curvature in the thoracic area of the spine is known as?
Kyphosis
The most specific, closely related organism group in classification is the?
Species
A diagram used in the study of inheritance to show the predicted genotypic results of random fertilization in genetic crosses between individuals of known genotype.
Punnett Square
What is the definition of abiotic? Give an example
nonliving, physical features of the environment, including air, water, sunlight, soil, temperature, and climate
mRNA codes for proteins in a process called ____.
Translation
What organ system is responsible for the breakdown of food and absorption of nutrients?
Digestive System
An organism that lives in or on another organism (its host) and benefits by deriving nutrients at the host's expense.
Parasite
What term describes the short segments of DNA synthesized discontinuously on the lagging strand during DNA replication?
Okazaki Fragments
Autotrophs are organisms that
a. rely on other organisms for their energy and food supply
b. consume plant and animal remains and other dead matter
c. use energy they take in from the environment to convert inorganic molecules into complex organic molecules
d. obtain energy by eating only plants
c. use energy they take in from the environment to convert inorganic molecules into complex organic molecules
Who discovered the structure of DNA?
Watson and Crick