Midterm 2 questions Flashcards
(30 cards)
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
25. Ediacaran organism considered the oldest known mollusc.
kimberella
26
26. The age of the Gunflint Formation of Canada (southern Ontario), where prokaryote diversification was documented for the first time, is _______________.
Paleoproterozoic
27
27. The abundance reduction of the stromatolites, which is reflected in the return from global to patchy distribution pattern, happened in the _____________ times.
Cambrian
28
28. In the case of Spriggina the process of cephalization is demonstrated by the occurrence of _____________.
cephalic shield
29
29. Chuaria is interpreted as a ___________.
planktic green alga
30
30. Earth’s general appearance during the “snowball Earth” period was probably similar with that of ________.
Europa
