Week One Lecture Flashcards
A species is:
a group of very similar organisms that can interbreed; share the same Linnaean binomial
Hierarchical Levels of life 1-4
molecules, organelles, cells, tissue
Hierarchical Levels of life 5-8
organs, organisms, populations, habitat & community
Hierarchical Levels of life 9-11
ecosystem, biosphere, planet
Homo sapiens and homo neanderthalensis are:
variations of the same species
Sometimes, closely related species can interbreed to create ______, that are mostly ______
hybrids; infertile
Name two animal hybrids!
Tigon, liger, zonkey, grolar bear
Name two plant hybrids!
pluot, limequat, tangelo
The scientist who created the binomial (two-name) system is:
Carl Linnaeus
What categories do the binomial system use?
Genus then species
What kingdoms of life did they ascribe to in the 18th century?
animal, vegetable, mineral
What are the current accepted kingdoms of life?
Six total: plantae, animalia, fungi, protista, eubacteria, archaebacteria
In 1990, ______ revised the six kingdoms and added a super-category above kingdom called ______
Carl Woese, domain
Which domains did Woese propose?
eukarya, archaebacteria, bacteria
Which kingdom has the highest number of species?
animalia
Which animal class has the highest number of species?
insects
The highest biomass of all kingdoms is led by ______, with ______ second
plants, bacteria
How many species do we have on the planet?
3,600,500
What naming system organizes the massive amount of varied species?
Binomial nomenclature
Canis familiaris = _____, felis domestica = _____
Dog, cat
Which four of the eight traits of “life” are related to interacting with external environments?
- respond to external stimulus
- adapt to environment
- grow and develop
- homeostasis (internal static conditions independent of environment
Which four of the eight traits of “life” are related to the reproduction of life?
- made of cells
- reproduce
- create order and reduce entropy
- convert and store energy
Robots lack which trait of life?
made of cells
The “gaia” hypothesis (that the Earth is a living being) neglects what two traits of life?
made of cells, reproduce