Ecology
This is a group of individuals of the same species living in the same area.
Population
Balance and stability within the body
What is homeostasis?
Which of Mendel's laws states that organisms inherit two copies of each gene and donate one copy to each of their offspring?
Law of segregation
What is the smallest unit of life??
Cell!
What is the largest desert on Earth?
Antarctica. Because it receives less than 6 inches of rain per year, Antarctica counts as a desert. The Sahara Desert is the second largest.
Why can so many different species live together within an ecosystem with limited resources?
They all occupy a different niche.
Find total magnification for:
Eyepiece = 20X
Objective lens = 20X
400x
A change in DNA that increases the variety of offspring in a species
What is a mutation?
What is the rule of 10? How does it work with energy?
Which popular social media platform was originally called Picaboo?
Snapchat
What is r-selection? What type of organisms follow this?
selection for life history traits that maximize reproductive success. ex: Frogs, Insects, Salmon, Jellyfish, Dandelions, Rodents, Weeds, Rabbits, and Bacteria.
When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect” is known as the
What is the dependent variable?
What is the best scientific description of “crossing-over?
portions of chromosomes switching places in meiosis
How would you describe an endothermic reaction with reactants and products and what is an example?
the products would have more energy than the reactants and an example is photosynthesis
What novel features the character Atticus Finch?
To Kill a Mocking Bird
What is density-dependent regulation? What's an example?
as a population increases, factors can slow or stop growth by decreasing birth rate and increasing death rate
ex: competition, predation, toxic wastes, territoriality, disease, intrinsic factors (ie reproduction rates)
The most important element necessary for life that makes up EVERY macromolecule is
What is Carbon?
What is nondisjunction? Give an example of a disorder caused by this.
Failure of chromosomes to separate during meiosis resulting in the wrong number of chromosomes. Ex. Down Syndrome
Phenobarbital is a drug commonly used to treat epilepsy by reducing seizure frequency. In experimental studies examining the response of liver cells to phenobarbital, researchers observed an increased capacity for enzyme production and detoxification. This effect was linked to the proliferation of a specific organelle within the liver cells, which plays a critical role in these processes. Which organelle is responsible for this observed effect?
Smooth ER
What is the slope-intercept form of a linear equation?
y = mx + b
Population ecology: What is a type I curve and what organism follows a type I curve?
Type I curve is a low death rate during early/middle life and high death rate later in life. ex: humans, elephants, large mammals
The macromoleculeS that make up the majority of the cell membrane’s structure are
Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids, only certain substances can move through.
In pigs, the allele for a wavy, rough coat (R) is dominant to the allele for a soft, fine coat (r). A rough coat boar and a soft coat sow mate. They produce several litters, 50% are rough coat and 50% are smooth coat. What must be the genotypes of the parents to create this phenotypic ratio?
Heterozygous (Rr) and homozygous recessive (rr)
A researcher is studying the movement of a protein that is secreted from a eukaryotic cell. Which of the following pathways best represents the movement she could expect for packaging and processing of the secretory protein?
Rough ER → Golgi → secretory vesicle → Plasma membrane
Which event marked the end of World War II?
The surrender of Japan in 1945