Unit 1: Organelles
What is homeostasis?
The process in which living organisms maintain a stable internal environment.
When does crossing over occur?
Prophase l
What is DNA shaped like?
Double Helix/Twisted Ladder
What is Genetic Drift?
Random change in allele frequency within a gene pool
What is carrying capacity?
The maximum number of individuals of a species an environment can support.
What is the difference between Osmosis and Diffusion?
Osmosis is diffusion of water from high to low concentration, Diffusion is the movement of any particles high to low concentration through the cell membrane.
What are the 3 types of RNA
What did Gregor Mendel use to prove the laws of heredity?
Pea Plants
Similar structure, different function
What is the main difference between primary and secondary succession?
Primary succession starts with bare rocks, Secondary succession starts with soil
What is the function of Ribosomes?
Create proteins and perform protein synthesis
How many chromosomes do humans have in each gamete cell?
23
If being tall is a dominant trait two heterozygous parents (Tt and Tt) what will the childrens genotypes be?
50% Tt | 25% TT | 25% tt | or 1:2:1
Why are viruses non-living?
They cannot reproduce by themselves, they are not made up of cells, No cellular structure
If the producer has 10,000 kcal of energy, how much will the tertiary consumer have?
10 kcal
What are 3 differences between plant and animal cells?
Plant cells have a cell wall, plant cells have a chloroplast, and plant cells have a large vacuole
What is the bond called between nitrogen bases?
Weak Hydrogen Bonds
What are 3 benefits of asexual reproduction?
Fast reproduction rates, Only one parent needed, Large number of offspring
What is the order of the taxon levels?
Domain, Kingdom, Phylum, Class,Order, Family, Genus, species
What are greenhouse gasses and what is one con to having them?
Gasses that trap heat in the atmosphere. They contribute to global warming
What is the equation for Photosynthasis?
6CO2+6H20+Light Energy=C6H12O6+6CO2
What 3 things happen during interphase of Mitosis?
Growth, DNA Replication, and Preparing for Division
What is the term where animals exhibit both the dominant and recessive allele fully?
Codominance
What is Natural Selection?
Where organisms with traits better adapted to the environment adapt, survive, and reproduce more passing along their traits
How does biodiversity increase stability?
Biodiversity provides more stability to the environment because it increases verity in species, ecosystems, and genetic diversity and improves organisms to adapt and survive.