Test 1 stuff
What is the first step in the scientific method?
Ask a question or make an observation
How many pairs of chromosomes do humans have?
23 pairs
Who had a job on a ship named the HMS Beagle and went on a journey around the world to report on natural resources?
Charles Darwin
What kind of body symmetry does a jellyfish have?
Radial symmetry
Who was the first one to see living cells under a microscope?
Antoine Van Leeuwenhoek
What are the four organic macromolecules?
Carbohydrates, Lipids, Proteins, and Nucleic Acids
What is the end product of mitosis?
two identical cells
What are the three domains of life
Bacteria, Archaea, and Eukarya
What are the three kinds of population distributions?
Clumped, Uniform, Random
What is apoptosis
programmed cell death
Shortly explain photosynthesis and cellular respiration; focus on the differences.
Photosynthesis uses light/solar energy and converts it to chemical energy. Cellular respiration organisms take glucose from those that photosynthesize.
How do bacteria asexually reproduce?
Binary fission
What kind of genetic material can viruses have?
DNA or RNA, never both of them at the same time
Name an example of a Density Dependent limiting factor and an example of a density independent limiting factor.
Density dependent: competition for resources between squirrels
Density independent: Hurricane
Who is the father of genetics?
Gregor Mendel
What are the two types of cells and basic characteristic of them?
Prokaryotic cell: DO NOT contain a membrane bound nucleus
Eukaryotic cell: Has a membrane bound nucleus
What event occurs during prophase 1 of meiosis which helps genetic variation occur?
Crossing over
What are the rules of the binomial naming system we use for scientific names
Both are in italics, always in latin, first word is the genus and is capitalized, second word is the specific epithet (species) and is always lowercase
What are the three types of survivorship curves and the main characteristic of them.
Type 1: mortality is highest late in life
Type 2: death rate of population does not vary much with age
Type 3: death rate for population peaks early in life
What are the two kinds of tumors possible for a person with cancer?
Benign and Malignant
Explain the cell theory to me
All organisms are composed of cells, cells are the basic units of structure and function in the organism, cells come only from preexisting cells and are self-reproducing.
What kind of mutation is the most dangerous?
Frameshift mutations
Name one example of each of these: a Bryophyte, a vascular seedless plant, a vascular seed plants
Bryophyte: moss, liverworts, hornworts
Vascular seedless plant: club mosses, ferns
Vascular seed plants: Gymnosperms, angiosperms, any flowers or trees- don't need to be super specific for this one.
Name one animal in each of the 9 phylum's we talked about. (Porifera, Cnidarian, Platyhelminthes, Nematoda, Annelids, Arthropoda, Mollusca, Echinodermata, Chordata)
Various answers, I will check them
Name two of the five things that have to be true for genetic equilibrium to occur?
mutations never occur, the population is infinitely large, the population is isolated from all other populations of the species (no one enters or leaves), mating is random, natural selection does not occur