WorksheetsNatural Selection & Evolution
Total questions: 23
Worksheet time: 21mins
the wings of a red-tailed hawk
the hind limbs of a house cat
the fins of sharks
the appendix of a human
Fur
Claws or nails
Lungs
Jaws
Critter A--> ATG CTT AAC CCG TTA
Critter B--> ATC GTT TTC CCG TCT
Critter C--> ATG CTA TAG GCG TAA
Antibiotics cause mutations in the bacteria which could change to something deadly.
The human body can metabolize the antibiotic too quickly, not allowing the antibiotic to reach the bacteria.
Bacteria with a resistant gene survive and reproduce and can exchange plasmids with other bacteria.
Nothing will happen. It takes thousands of years for bacteria to evolve and become antibiotic resistant.
Structures that are reduced in size and have no apparent function in an organism are ___________.
homologous structures
vestigial structures
analogous structures
embryological structures
Two species of squirrel that look similar evolved from a single species. A river carved out a canyon and separated the squirrels and over time, due to natural selection they evolved into different species. This is an example of _____.
temporal isolation
behavioral isolation
geographic isolation
habitat isolation
