Unit 5: Heredity & Genetics
A phenotype is:
The physical expression of a trait
What is evolution?
The process by which species change over time
What is an ecosystem?
A community of organisms and their physical environment interacting together
What is an invertebrate?
Organism that does not have a backbone.
Mistletoe is an invasive plant that grows on other trees stealing nutrients and sunlight from them. What type of symbiosis is this an example of?
Parasitism
Mendel’s principle of segregation states that:
Alleles separate during gamete formation
What is coevolution?
Two species influencing each other’s evolution
What is the correct order of a food chain?
Producer → Primary Consumer → Secondary Consumer → Decomposer
Provide two similarities between vertebrates and invertebrates.
Multicellular, animals, nerves,
Roughly how many miles per hour does the earth spin?
1000 mph
Two heterozygous tall plants are crossed (Tt x Tt). What percentage of offspring will be short?
25%
List three things that increase genetic variation in a population.
Mutations, Sexual Reproduction, Crossing Over during gamete formation
Which of these is a characteristic of nonrenewable resources?
They are finite and cannot be replaced on a human timescale.
List two differences between birds and mammals.
Differences: eggs vs live young, fur vs hair
A species’ carrying capacity refers to:
The maximum population size an environment can support
A red flower (RR) and a white flower (WW) produce pink flowers (RW). This is an example of:
Incomplete dominance
What is the primary purpose of a cladogram or phylogenetic tree?
To show evolutionary relationships between organisms
What is the main difference between primary and secondary succession?
Primary succession begins in an area without soil, while secondary succession occurs in areas where soil is already present.
Which group of animals is the largest (including vertebrates and invertebrates)? Provide an example of an animal in this group.
Arthropods (crabs, insects, lobsters, shrimp)
What percentage of the Earth’s wildlife is found in the ocean?
94%
If a parent is homozygous recessive (tt) and the other is heterozygous, what is the probability their offspring will inherit a recessive allele?
100%
Macroevolution refers to:
Large-scale evolutionary changes that occur over long time periods
In the carbon cycle, which process removes carbon dioxide from the atmosphere and what process releases it into the atmosphere?
Photosynthesis: removes
Cellular Respiration: Releases
What makes amphibian eggs unique?
They are jelly like and must be laid in water.
“Have it your way” is the memorable slogan of what fast food restaurant?
Burger King