Midterm 2 questions Flashcards
1
Q
- Morphological variability as the result of organism growth from the juvenile to gerontic stages is known as _______________.
A
onotogentic variability
2
Q
Sexual dimorphism is a case of _______.
A
genetic variability
3
Q
Kind of morphological variability induced primarily by ecological factors.
A
nongenetic variability
4
Q
. This specimen is designated as the species name-bearer by the scientist that discovered and named a species.
A
holotype
5
Q
________ is the stratigraphical level from which the holotype was collected.
A
type level
6
Q
- The most significant evolutionary achievement in the evolution from prokaryotes to eukaryotes is the ____________.
A
evolution of sexual reproduction
7
Q
- Classification system in which the species are not considered objective natural entities but creations of the human mind.
A
nominalism
8
Q
- The existence of oceans in the early history of the Earth (~ 4.4 billion years ago) is demonstrated with the aid of this mineral.
A
zircon
9
Q
- Proteins are the final products of the polymerization of the ___________.
A
amino acids
10
Q
- The polymer cellulose is formed through the repetition of this organic monomer.
A
glucose
11
Q
- The oldest clustered fossilized organisms are recorded in this lithostratigraphic unit from Australia.
A
strelley pool chert
12
Q
- Living stromatolites were first discovered in __________.
A
eastern indian ocean
13
Q
- Precambrian stromatolites had a patchy distribution in the ___________.
A
Mesoarchean
14
Q
- Photosynthetic bacteria and cyanobacteria dominate in this layer of a stromatolite.
A
growth surface
15
Q
- Stromatolites achieved global distribution in the __________ times.
A
Neoarchean times
16
Q
- Fossilized eukaryotic cells were documented for the first time in this lithostratigraphic unit.
A
bitter springs formation
17
Q
- _________ demonstrates the evolution of algal multicellularity.
A
bangiomorpha
18
Q
- The earliest known organism with animal-like metabolism belongs to the __________ group.
A
testatic ameobae
19
Q
- Vestiges of the catastrophic meteorite bombardment from the early history of the Solar System occur _____________.
A
at the surface of the moon
20
Q
- _____________ was the first scientific name given to stromatolites.
A
cryptozoon
21
Q
- ____________ is the oldest multicellular organism on Earth.
A
bangiomorpha
22
Q
- The age of the oldest multicellular animals on Earth is _____________.
A
Cryogenian
23
Q
- Doushantuo Formation of China yielded the oldest known_____________.
A
fossilized animal embryos
24
Q
- Ediacaran occurs in the uppermost portion of the _____________ eon.
A
Proterozoic
25
Q
- Ediacaran organism considered the oldest known mollusc.
A
kimberella
26
Q
- The age of the Gunflint Formation of Canada (southern Ontario), where prokaryote diversification was documented for the first time, is _______________.
A
Paleoproterozoic
27
Q
- The abundance reduction of the stromatolites, which is reflected in the return from global to patchy distribution pattern, happened in the _____________ times.
A
Cambrian
28
Q
- In the case of Spriggina the process of cephalization is demonstrated by the occurrence of _____________.
A
cephalic shield
29
Q
- Chuaria is interpreted as a ___________.
A
planktic green alga
30
Q
- Earth’s general appearance during the “snowball Earth” period was probably similar with that of ________.
A
Europa
