Biodiversity and ecological interactions
What is biodiversity?
Vanierty & variability of living organisms presents in a particular ecosystem
What's Specialization and name one advantage and one disadvantage?
Specialization ~ Adaptation to a very specific environment or ecological niche
Disadvantages:
~ Very sensitive to environmental changes & lower ability to adapt
What's Sexual Reproduction and one advantage and one disadvantage?
Sexual Reproduction ~ The process involving 2 parent organism, where genetic material is exchanged to create genetically unique individual
Advantages:
~Genetic diversity can increase adaptability & the chances of survival during environmental changes
Disadvantages:
~ Often requires more energy & time than asexual reproduction
describes the connection between DNA, chromosomes,
genes, and alleles?
Chromosomes are made up of DNA, which contains genes. Genes come in
different forms, called alleles
What's the difference between Extinction and Extirpation
Extinction ~ complete disappearance (Dinosaur & Dodo bird)
Extirpation ~ disappearance of a species in a particular region
What are Interspecific and Intraspecific?
Interspecific ~ Differences between species in an ecosystem
Intraspecific ~ Differences within the same species
What's the difference between Morphological adaptations and Behavioral adaptation?
Morphological adaptations ~ Structural modification to an organism to improve its ability to survive & reproduce in its environment
Behavioral adaptation ~ Changes in the behavior of an organism that improve its chances for survival & reproduction
What's Asexual Reproduction and one advantage and one disadvantage?
Asexual Reproduction ~ A process where a single organism produces genetically identical offspring
Advantages:
~ Allows quick colonization a habitat & often less energy
Disadvantages:
~ The lack of genetic diversity makes organisms more susceptible to disease & less flexible to environmental changes
WHat's the difference between Heterozygous and Homozygous?
Heterozygous ~ having different alleles for the same genes
Homozygous ~ having the same gene from both parents
What's Habitat fragmentation
Habitat fragmentation ~ division of habitats into isolated pieces
What's an Ecological niche?
The specific role that a species plays in an ecosystems, including its habitat, feeding interactions, & behavior
What's the difference between Environmental variation and Natural selection?
Environmental variation ~ Different species individuals of the same species
Natural selection ~ Traits increase the chances of survival & reproduction
What are 4 types of sexual reproduction?
Internal fertilization (Human) ~ Where fertilization takes place inside the material ( Female) organism
External fertilization (Frog) ~ Where fertilization takes place outside the material body
Pollinisation (Plant) ~ Transport of pollen grains to the ovary & ovules of flower
Bacterial conjugation (Bacterial) ~ Direct DNA transmission from one bacterial cell to another
What's the difference between Hereditary and non-Hereditary?
Hereditary ~ transmissions of traits from parents to their descendants
Non-hereditary ~ not passing down through families
What's one advantage and one disadvantage of a zoo?
Zoos:
Advantage ~ research,breeding,treatment & education
Disadvantage ~ inadequate conditions, dependent, genetic diversity & ethical issues
What's the difference between Discrete Variation and Continuous Variation?
Discrete Variation ~ Physical treat that has limited variation
Continuous Variation ~ Physical treat that has unlimited variation
What's Artificial selection?
Humans influence genetic frequency by selecting desired traits
What are 4 types of asexual reproduction:
Binary fission/Scissiparity (Bacterial) ~ Where an organism divides into 2
Pathogenesis (Bees, wasps & some lizards) ~ Where an unfertilized egg develops into an embryo
Budding/Fragmentation (Strawberry plant & star-fish) ~ Where part of the organism body grows outwards & forms abud. Fragments of an organism grow back to from a complete organism
What's the difference between Mitosis and Meiosis?
Mitosis ~ process common to the majority of cells in
an organism
Meiosis ~ only used in the production of
gametes
What's the difference between Genetic engineering and Artificial selection?
Genetic engineering ~when DNA is modified for desirable traits
Artificial selection ~ human influence genetic frequency
What's Symbiosis and what are the 3 examples?
Parasitism, Commensalism & Mutualism
What's Genetic mutation?
A change in the DNA sequence that can cause problems or eventually kill the organism
mystery>>>
NOthing
What's the difference between Codominance and Incomplete dominance?
Codominance (White chicken & brown chicken have baby = white & brown chicken) ~ one allele does not dominate the other, but both are fully and independently expressed
Incomplete dominance (White chicken & brown chicken have baby = light brown chicken) ~ the characteristics of each gene are
Blended
What's an Nature reserves and one advantage and one disadvantage?
Nature reserves ~ a tract of land managed so as to preserve
Advantage ~ protect species & protect geological formations
Disadvantage ~ excessive tourism