- A4 ✏︎ Ecosystems -
A4.1 - Evolution & Speciation
LECTURE VIDEO
DESCRIPTION
In this video us BIG BRAINS will talk about the different aspects of noodle salads in order to substantially expand our understanding of jelly beans and puppy paws. Not only that, we will also be identifying structures we have never seen before such as feather soil, wand oil and of course: peanut nanocarbons and puffskittles.
TIMESTAMPS
STUDY RESOURCES
00:00 – Definition Of Evolution
03:29 – What is NOT evolution?
04:56 – Darwinism VS Lamarkism
07:52 – Outline of EVIDENCE for evolution
08:30 – Homologous Structures As EVIDENCE
11:47 – Homologous Vs Analogous
13:39 – Convergent Vs Divergent Evolution
21:20 – Selective Breeding As EVIDENCE
24:09 – Genetics As EVIDENCE
29:45 – Speciation
36:49 – Extinction
37:18 – Questions & Answers
NOTES – All you need to know in one place!
QUESTIONS – Test your Big Brain!
A4.1 (HL) - Evolution & Speciation
LECTURE VIDEO
DESCRIPTION
In this video us BIG BRAINS will talk about the different aspects of noodle salads in order to substantially expand our understanding of jelly beans and puppy paws. Not only that, we will also be identifying structures we have never seen before such as feather soil, wand oil and of course: peanut nanocarbons and puffskittles.
TIMESTAMPS
STUDY RESOURCES
00:00 – Intro To Speciation
01:44 – Allopatric & Sympatric Speciation
04:16 – Geographical Barrier (Allopatric Speciation)
07:41 – Temporal Barrier (Sympatric Speciation)
09:06 – Behavioral Barrier (Sympatric Speciation)
10:42 – Adaptive Radiation
14:53 – Hybridization
21:05 – Abrupt Speciation
27:01 – Questions & Answers
NOTES – All you need to know in one place!
QUESTIONS – Test your Big Brain!
A4.2 - Conservation Of Biodiversity
LECTURE VIDEO
DESCRIPTION
In this video us BIG BRAINS will talk about the different aspects of noodle salads in order to substantially expand our understanding of jelly beans and puppy paws. Not only that, we will also be identifying structures we have never seen before such as feather soil, wand oil and of course: peanut nanocarbons and puffskittles.
TIMESTAMPS
STUDY RESOURCES
00:00 – Outline Of This Video
00:19 – Introduction & Big Picture
03:04 – Biodiversity
11:21 – Species Richness & Evenness
14:48 – Causes Of Biodiversity Crisis
24:17 – Nutshell Summary
25:19 – Organisms Threatened By Anthropogenic Activities
28:30 – Ecosystem Loss By Anthropogenic Activities
30:48 – DATA & Biodiversity Crisis
34:24 – Edge Of Existence Program
37:00 – In Situ Efforts (Improve Biodiversity Crisis)
39:48 – Ex Situ Efforts (Improve Biodiversity Crisis)
42:27 – Questions & Answers
NOTES – All you need to know in one place!
QUESTIONS – Test your Big Brain!