Unit A - Biological Diversity Flashcards
Ecosystem
Biological community interacting with its physical environment. Abiotic and Biotic
Competition
When Niches overlap and they fight over resources and it becomes rare
Population
amount of members of a species who live in a specific area and share resources.
Variation Benefits
Diseases are less-likely to pass down.
Helps them adapt to environment
Variation Consequences
Natural Selection occurs.
Species can be too specialized and can make them vulnerable.
Variation Benefits
Diseases are less-likely to pass down.
Helps them adapt to environment
Parasitism
+/-
Mutualism
+/+
Commensalism
+/NA
Niche
role of an organism in its ecosystem
(What it eats, lives, and effect it leaves)
Non-heritable v Heritable traits
Non-heritable - traits that are not passed down in generations (dyed hair, muscles)
Heritable - traits that are passed down to generation. (hair color, eye color)
Types of Asexual reproduction
Binary fission
Budding
Spore
Vegetative
Binary fission and A/E
a cell splits exactly in 2 producing 2 identical cells (single celled organism)
A - rapid population
Spore and A/E
Spores created similar to seeds and then gets spread (mushrooms make ‘dust’)
A - Spores stay dormant until conditions are good
Vegetative and A/E
uses runners to grow daughter plants next to plant to take care of it.
A - Parent supports next generation until its grown
E- strawberry plants
Continuous v Discrete
Continuous - differences with a range of forms (hair color, eye color, height, etc.)
Discrete - differences that are either/or
(Roll tongue, hitch-hiker thumb)
Zygote
new cell created by gametes
Gametes F/M
Gametes are called sex cells
Female ones are called eggs
male ones are called sperm
Cleavage
When zygote splits
Embryo
When Zygote is bigger and forms
Pollen
Male gamete of plant
Stamen
Male part of plant where pollen is found
Ovules
Female part of plant
Pistils
Female part of plant where ovules are found
Cross Pollination
When pollen is carried from stigma to another plant
Cross Fertilization
When the grain of the pollen produces a tube that grows down the style into the ovary
Natural Selection
When a variation survives better, and the other dies off
Linnean classification
Kingdom
Phylum
Class
Order
Family
Genus
Species
(King Phillip comes over for good slurpees)