Evidence of Evolution
What are the preserved remains or traces of ancient organisms that provide evidence of past life on Earth?
What are fossils?
In the context of natural selection, what term refers to the distinguishing characteristics or features of an organism that can be inherited?
What are traits?
What is the shape of DNA?
What is a double helix?
What type of reproduction involves 1 parent?
How many chromosomes do humans have?
What are 46 chromosomes?
What term describes the chronological order of Earth's past including organisms present?
What is Geological Time Scale?
What are changes in the DNA sequence that can lead to new traits and are a source of genetic variation in populations?
What are mutations?
What is a section of DNA called?
What is a gene?
In sexual reproduction, what are the male and female reproductive cells called?
Sperm and Eggs
In genetics, what term describes an allele that expresses its trait even when only one copy is present?
What is the term for fossils that provide information about the absolute ages of rock layers and the organisms that lived during those times?
What are index fossils?
What is the phenomenon called when a species evolves into two or more distinct species due to environmental pressures?
What is speciation?
What do chromosomes consist of?
What is DNA?
What is the process by which a sperm cell fertilizes an egg cell to form a zygote?
What is fertilization beginning meiosis?
What tool is used to predict the genetic outcome of a cross between two organisms?
Why are pieces of the fossil record missing?
What is a rare occurrence taking 1000's of years?
Who is known as the father of evolution and proposed the theory of natural selection?
Who is Charles Darwin?
What are the 3 mutations that can occur in DNA?
What are insertion, deletion, and substitution (rearrangement)?
What are the two types of cell division?
What are Mitosis and Meiosis?
What term describes the physical appearance or observable traits of an organism?
What is a phenotype?
What principle states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top?
What is the Law of Superposition?
What is the term for a trait that enhances an organism's ability to survive and reproduce in its environment?
What is an adaptation?
What term refers to the mutation created when an organism is born with an extra chromosome?
What is down syndrome?
What is the process by which traits and characteristics are passed from parents to their offspring through genes
What is heredity?
What term describes an organism that has two different alleles for a specific gene?
What is heterozygous?