Unit 1
What types of bias can negatively affect science?
Types of bias that can negatively affect science are selective sampling, selective reporting, and/or industry sponsorship
What is the function of the nucleus?
The nucleus is considered the control center of the cell; it acts as a set of instructions for making parts of the cell
What is a gene and what is its role?
A gene is a part of DNA that affects a trait. Genes are sections of a chromosome. Genes contain coded instructions (DNA) that control the traits of a cell
What is the fossil record?
The fossil record is a collection of fossils that are placed in chronological order
What is a behavioral adaptation?
A behavioral adaptation is a behavior or activity performed by an organism that increases its fitness
What are the differences between a bar graph and a histogram?
A bar graph and a histogram are very similar to each other. Both use rectangles of equal width to show comparisons between sets of data, but bar graphs have spaces between the bars, and histograms do not
What are the inputs and outputs of this process?
The inputs for photosynthesis are carbon dioxide, water, and sunlight. The outputs are oxygen and sugar
What does dominant mean?
Example Answer: A dominant allele for a gene is one that masks the effects of the other allele
What were Lamarck’s thoughts about evolution?
Lamarck claimed that the traits of an organism were affected by their use. If an organ or part of the body received a lot of use, it enlarged or got stronger, if it received little use, it weakened, and eventually vanished
How do the population numbers of predators and prey affect each other?
The population numbers of predators and prey affect each other because of the concept of overproduction.
What are the benefits to using graphs in science?
When collecting data, it’s often organized into a table, but a table is not the best way to visualize the data. A graph is beneficial because it provides a visual representation of the relationships between the data. Graphs help scientists perform tasks such as data presentation and data analysis
What is the role of the cytoplasm?
The cytoplasm provides support for the cell, helping the cell keep its shape. It surrounds organelles and other internal components
What are the differences between a Punnett Square and a pedigree?
A Punnett square is a diagram used to show possible genotypes that can result from a cross between two parents
What is a mutation?
A mutation is a change in the DNA of an organism
What is homeostasis?
Homeostasis is a state of equilibrium that provides a stable environment within cells and organisms