UNIT 1: CELLS
The five characteristics required to classify something as living.
What are 1)organization, 2)growth/reproduction, 3)maintain homeostasis, 4)energy use, 5)undergo evolution
The degree of adaptation (survival and reproduction) to a specific environment.
What is fitness?
This group of protists consumes CO2 and produces O2 for much of Earth, serving as the base of food webs in lakes, streams, and the oceans?
What are algae (plant-like protists)?
penguin, platypus, kangaroo, dolphin, whale
Which of these is not an example of a mammal?
What is a penguin? (class Aves)
The cell's membrane is called:
What is a phospholipid bilayer?
The protein-producing structure in eukaryotic cells that is studded with ribosomes.
What is rough endoplasmic reticulum?
Closest living human relative.
What is the chimpanzee?
Flowers and fruits are unique to this group of plants.
What are angiosperms?
Sea stars and sea urchins belong to this phylum
What is Echinodermata?
The understanding of germ theory, along with these advances have led to a nearly doubling of life expectancies in the U.S. since about the 1850’s. Name 2 be specific
What are 1)improved hygiene and 2)antibiotics, 3)vaccination?
Process of trying to keep a constant state of balance within the organism.
What is homeostasis?
A population of deer was threatened with overpopulation until cheetahs were imported.
After a couple of years, there were fewer deer but the average running speed of the deer had increased. This is an example of:
What is natural selection?
List the function of xylem and phloem.
Xylem: Brings water and minerals up from the roots. Phloem: Carries photosynthetic sugars from leaves to other parts of the plant.
What 2 adaptations originated in some fishes and enabled vertebrates to thrive on land?
What are lungs and limbs?
The current extinction rate of vertebrates is 100–1,000 times the historical background. This is primarily due to _________
What is habitat destruction?
Enzymes work to increase reaction rates by:
What is lower the activation energy?
Structures with similar appearance and function, but have different evolutionary origins.
What are analogous structures?
This organism, usually associated with primary succession, is actually the symbiotic relationship between an ascomycota or basidiomycota and green algae or cyanobacteria
What is a lichen?
J. B. S. Haldane observed that the Creator must have “an inordinate fondness for beetles” due to the diversity and number of species belonging to this phylum
What is Arthropoda
List 2 of the 5 key properties of water.
What is 1) high specific heat 2) cohesion 3) good solvent4) less dense when frozen 5) used in chemical reactions (hydrolysis/Dehydration synthesis)?
List the reactants and products within cellular respiration.
Reactants (glucose+oxygen) Products (water, carbon dioxide, energy) C6H12O6+6O2-->6H20+6CO2+energy
A loss of genetic diversity due to the death of many members of a population.
What is the bottleneck effect?
Describe Type I survivorship curves.
What are: 1) characteristic of humans 2) invest a lot in their young 3) most live to old age 4) only have a few offspring
Raccoons and squirrels can become familiar to and stop reacting to loud noises, sights, and actions of people in cities or suburbs. This behavior is an example of
What is habituation?
Plants require energy to perform photosynthesis. Because energy is initially required, photosynthesis is a(n) ________ reaction.
What is an endergonic reaction?