Evolution
A soft-bodied animal fossil dates back to 600 million years. A trilobite fossil dates back to 400 million years. A fern fossil dates back to 300 million years. The soft-bodied animal fossil is likely found in the __ layer of rock
What is lowest
a mouse population with a total of 500 alleles for a specific gene has __ individuals in the population
__ must take place for speciation to occur
What is genetic divergence
A(n) ___________ is a branch of an evolutionary tree and all of the descendants of a particular ancestor at the beginning of that branch
What is clade
If two plants interbreed, and their offspring are able to reproduce with each other, then speciation __ happened
What is has not
The rudimentary hind legs of a living python and the fully functional legs of other living reptiles are shared characteristics that result from __
What is common descent
Bat wings and bird wings are an example of __ structures
What is analogous
__ is responsible for the nearly perfect match in color pattern between a species of praying mantis (an insect) and the leaves on which it rests
What is adaptation
__ is the highest level in the organization of life describes the most basic and ancient divisions among living organisms
What is domain
An autosomal disorder happens on __
Wisdom teeth in humans are an example of __
What is vestigial structures
A species of bird lives in an area where large and small seeds are common, but medium size seeds are not. Birds with large beaks are adept at eating large seeds and birds with small beaks are adept at eating small seeds. This population will likely undergo __
What is disruptive selection
__ cannot occur when a population is in geographic isolation from others of its kind
What is gene flow
The four eukaryotic kingdoms include __
What is Fungi, Animalia, Protista, and Plantae
We are currently living in the __ era and the __period
What is cenozoic and quarternary
Both human and bird embryos have gill slits. This indicates that __
What is they share a common ancestor
To limit the spread of antibiotic resistance among pathogenic bacteria you can __
What is save leftover antibiotics to take for your next illness
A definition of the term “species” that is based on morphology is most useful in organisms that use __
What is asexual reproduction
__ is a key evolutionary strategy that sets members of Domain Archaea apart from members of Domain Bacteria
What is adaptation to extreme environments
__ transports substances from an area of higher concentration to an area of lower concentration and may use a transport protein
What is passive transport
the development of living organism embryos __ the changes in the fossil record of closely related organism
What is parallels
Mutation is the __ source of new alleles
What is ultimate
__ is the speciation between populations that lack geographic isolation
What is sympatric speciation
the evolution of many new species that fill vacant ecological roles is __
What is adaptive radiation
Many tropical rainforests have existed for hundreds, and sometimes thousands, of years. Although they are the most diverse areas on Earth, they are relatively stable in their structure and composition (unless they are destroyed by humans. This is a __ community
What is climax