imported_Amber
New member
According to your text, what is thought to be the correct sequence of these events (from earliest to most recent) in the evolution of life on Earth? 1. origin of mitochondria 2. origin of multicellular eukaryotes 3. origin of chloroplasts 4. origin of cyanobacteria 5. origin of fungal-plant symbiosis
A) 4,3,2,1, 5
B) 4,1,2,3,5
C) 4,1,3,2,5
D) 4,3,1,5,2
E) 3,4,1,2,5
2.
A biologists is examining the age of a bone using carbon 14 radiometric dating. He determines that the bone now contains 12.5 percent of the parent isotope. How old would he calculate the bone to be?
A) a little over 17,000 years
B) approximately 11,500 years
C) 5,730 years
D) 200,000 years
E) 2.5 million years
3.
Which of the following statements provides the strongest evidence that prokaryotes evolved before eukaryotes?
A) primitative structure of plants
B) meteorites that have struck Earth in past
C) abiotic laboratory experiments tht produced liposomes
D) Liposomes closely resemble prokaryotes
E) oldest fossilized cells resemble prokaryotes
4.
Which of the following offer support for the endosymbiotic theory for the origin of eukaryotic cells?
A) inner membranes of both mitochondria and chloroplasts have enzymes that are similar to enzymes found in membranes of living prokaryotes.
B) mitochondria and chloroplasts replicate by a splitting process that is similar to replication in certain prokaryotes
C) mitochondria and chloroplasts have a single circular DNA molecule like the chromosomes of bacteria
D) ribosomes of mitochondria and chloroplasts are more similar to ribosomes of bacteria than they are to cytoplasmic ribosomes of eukaryotic cells.
E) choose this choice if all the other choices support the endosymbiotic theory for the origin of eukaryotic cells.
5.
The sudden appearance of many life forms about 525-535 million years ago is referred to as the _____________________.
A) Cambian explosion
B) Pangaea development
C) evolutionary novelity
D) Paleozoic puzzle
E) Stromatolite formation
6.
Adult female bagworm moths are larval in appearance; they lack the wings and other structures of the adult male and instead retain the appearance of a caterpillar even though they are sexually mature and can lay eggs within the bag. This is a good example of
A) allometric growth
B) paedomorphosis
C) sympatric speciation
D) adaptive radiation
E) changes in homeotic genes
7.
According to your text, all the Earth's landmasses were once joined together to form the supercontinent ___________.
A) Pangaea
B) Laurasia
C) Gondwana
D) Eurasia
E) Continuria
8.
The Period in which dinosaurs waer abundant and diverse is the _________ Period.
A) Cretaceous
B) Permian
C) Devonian
D) Jurassic
E) Carboniferous
9.
The great diversity of life on the Hawaiian Islands or the Galapagos Islands is most often explained by which of the following concepts?
A) adaptative radiation
B) heterochrony
C) homeotic genes
D) pseudomorphosis
E) endosymbiosis
10.
How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?
A) one
B) two
C) three
D) four
E) five
A) 4,3,2,1, 5
B) 4,1,2,3,5
C) 4,1,3,2,5
D) 4,3,1,5,2
E) 3,4,1,2,5
2.
A biologists is examining the age of a bone using carbon 14 radiometric dating. He determines that the bone now contains 12.5 percent of the parent isotope. How old would he calculate the bone to be?
A) a little over 17,000 years
B) approximately 11,500 years
C) 5,730 years
D) 200,000 years
E) 2.5 million years
3.
Which of the following statements provides the strongest evidence that prokaryotes evolved before eukaryotes?
A) primitative structure of plants
B) meteorites that have struck Earth in past
C) abiotic laboratory experiments tht produced liposomes
D) Liposomes closely resemble prokaryotes
E) oldest fossilized cells resemble prokaryotes
4.
Which of the following offer support for the endosymbiotic theory for the origin of eukaryotic cells?
A) inner membranes of both mitochondria and chloroplasts have enzymes that are similar to enzymes found in membranes of living prokaryotes.
B) mitochondria and chloroplasts replicate by a splitting process that is similar to replication in certain prokaryotes
C) mitochondria and chloroplasts have a single circular DNA molecule like the chromosomes of bacteria
D) ribosomes of mitochondria and chloroplasts are more similar to ribosomes of bacteria than they are to cytoplasmic ribosomes of eukaryotic cells.
E) choose this choice if all the other choices support the endosymbiotic theory for the origin of eukaryotic cells.
5.
The sudden appearance of many life forms about 525-535 million years ago is referred to as the _____________________.
A) Cambian explosion
B) Pangaea development
C) evolutionary novelity
D) Paleozoic puzzle
E) Stromatolite formation
6.
Adult female bagworm moths are larval in appearance; they lack the wings and other structures of the adult male and instead retain the appearance of a caterpillar even though they are sexually mature and can lay eggs within the bag. This is a good example of
A) allometric growth
B) paedomorphosis
C) sympatric speciation
D) adaptive radiation
E) changes in homeotic genes
7.
According to your text, all the Earth's landmasses were once joined together to form the supercontinent ___________.
A) Pangaea
B) Laurasia
C) Gondwana
D) Eurasia
E) Continuria
8.
The Period in which dinosaurs waer abundant and diverse is the _________ Period.
A) Cretaceous
B) Permian
C) Devonian
D) Jurassic
E) Carboniferous
9.
The great diversity of life on the Hawaiian Islands or the Galapagos Islands is most often explained by which of the following concepts?
A) adaptative radiation
B) heterochrony
C) homeotic genes
D) pseudomorphosis
E) endosymbiosis
10.
How many half-lives should have elapsed if 6.25% of the parent isotope remains in a fossil at the time of analysis?
A) one
B) two
C) three
D) four
E) five