what is sympatric speciation?

A species evolves into a new species without a physical barrier

What is postzygotic isolation?

Fertilization has occurred but the offspring cannot develop or reproduce

DNA and RNA provide evidence of evolution because...

All organisms have nearly identical DNA and RNA

what is allopatric speciation?

A physical barrier that divides one population into two or more populations

what is prezyogotic isolation?

Prevent fertilization from happening in the first place

Transitional fossile forms are important evidence of evolution because they show

how organisms changed over time

what is endosymbiosis

when an organism envelops another. Ex. Mitochondria and Chloroplast

studbud

new book evolution

18 termsStudBud Administration464 plays

Imported from external platform

Flashcards18 cardsFPractice quizPHost liveL

Questions 18

Answers

1
An inherited characteristic that enables an organism to survive & reproduce in its habbitat is
analogous structure
adaptation
speciation
vestigal Structure
2
what is sympatric speciation?
when a population splits into two groups where they no longer interbreed
A species evolves into a new species without a physical barrier
when a population of species slowly starts to die off
population must diverge and then be reproductively isolated
3
What is postzygotic isolation?
A process in which organisms diverse rapidly
when animals isolate from each other after specific adaptations
prevents fertilization from happening in the first place
Fertilization has occurred but the offspring cannot develop or reproduce
4
DNA and RNA provide evidence of evolution because...
All organisms have nearly identical DNA and RNA
in most organisms, same codons specify the same amino acids
no two organisms have exactly the same DNA
each RNA codon specifies just one amino acid
5
sturctures that have different mature forms but develop from the same embryonic tissue are
homologous
analogous
fossils
adaptations
6
What would an animal breeder use to increase the number of cows that give the most milk?
overproduction
genetic isolation
artificial selection
acquired characteristics
7
In addition Darwin studied the preserved remains of ancient organisms called...
homologies
fossils
vestigial structures
adaptations
8
Which scientist formulated the theory of evolution through natural selection?
Thomas Malthus
Jean- Baptiste Lamarck
James Hutton
Charles Darwin
9
what is allopatric speciation?
the evolution of certain species proceeds in small gradual steps
when animals reproduce rapidly
a species evolves into a new species without a physical barrier
A physical barrier that divides one population into two or more populations
10
what is prezyogotic isolation?
distantly related organisms independently evolve simiar traits to adapt
Prevent fertilization from happening in the first place
when a population splits into two groups
fertilization has occurred but offspring cannot develop or reproduce
11
Which of the following does NOT provide evidence for Evolution?
natural variation within a species
geographical distribution of living things
stiving for perfection
fossil record
12
Transitional fossile forms are important evidence of evolution because they show
how the embryos of organisms develop
molecular homologies
how animals behaved in their environments
how organisms changed over time
13
what is endosymbiosis
when two or more species reciprocally affect each other's evolution
that isn't a thing
when species randomly select partners to mate with
when an organism envelops another. Ex. Mitochondria and Chloroplast
14
How well an organism survives and reproduces in its environment can be discribed as its
fitness
analogies
homologies
common descent
15
Which of these is an important concept in Darwin's theory of evolution by natural Selection
the tendancy toward perfection
homologous molocules
descent with modification
processes that changed the surface of the Earth
16
A farmer's use of the best livestock for breeding is an example of...
extinction
artificial selection
adaptation
natural selection
17
Who observed the variations in the characteristics in the plants and animals in the Galapagos?
Diet Dr. Pepper
Charles Darwin
James Hutton
Thomas Malthus
18
A bird's wings are homologous to a(n)
alligator's claws
misquito's wings
dog's front legs
fish's tailfin

new book evolution Flashcards | StudBud