Speciation

Question 1

Define the term species

Answer 1

by similarities of their features and their reproductive isolation

Question 2

What is the biological species concept

Answer 2

Reproductive isolation, biological and geographical . for individuals to be different species some isolation

Question 3

Lineage speices concept

Answer 3

One species gradually spilts into two . may be so gradual that actual speciation is hard to determine

Question 4

Reproductive isolation

Answer 4

Incompatibilites between genes . Less succesful or lact fertizing

Question 5

Another way for reproductive isolation

Answer 5

Centric fusion- when non homologous chromosomes fuse in a way that allows normal meietoc disjunction

what does this even mean

Question 6

species tend to show reproductive isolation by

Answer 6

Genetically distant pairs of species

Question 7

allopatric

Answer 7

Different/alternative homeland

Question 8

What event can cause speciation

we saw this in 5 eveolutional things

Answer 8

founder effect

Question 9

Sympatric and give an example of this

Answer 9

may occur when disruptive selection is successful. Plants tolerating polyploidy, autopolyplodiy and allopolyplodiy. Define all of this

Question 10

Plants can tolerate

Answer 10

Polypolidy

Question 11

Mechanical isolation

Answer 11

could be seen in plant classfications to reflect adaptions to land.

Question 12

angioseperms

Answer 12

Adaptions showing decrease in dependence on water and increased reproductive success

Question 13

Pre-zyotic

Answer 13

before the formation of zygotes

Question 14

reproductuve isolating mechanisms

give an example

Answer 14

pre and post zyogtic

orchid species adapt only one species of pollinate by mocking species

Question 15

semi sychronus is allopatric or sympatric. Why

Answer 15

Allopatric

figure out why

Question 16

Behavorial mechanisms

Answer 16

mating activites and spacing

Question 17

what if eggs and sperm can meet, How does it make the species seperate

Answer 17

By post zygote isolating mechiasms by low hybrud viability an infertility.

Question 18

Disadvantages to Biological Species Concept

Answer 18

Cannot evaluate fossils or asexual organisms. Difficult to apply to closely related populations who do not overlap geographically.