1. Animals probably evolved from: a). Placozoans that formed colonies b). Choanoflagellates that formed colonies c)....
1. Animals probably evolved from:
a). Placozoans that formed colonies
b). Choanoflagellates that formed colonies
c). All protozoa
d). Both a and b
2. Which of the following represent an early branch on the animal family tree?
a). Placozoans that formed colonies
b). Choanoflagellates that formed colonies
c). All protozoa
d). Both a and b
3. Feathers first evolved in reptiles.Today they are seen in reptile descendants, the ....?
a). mammals
b). Birds
c). Insects
d). Crocdilians
Homework Answers
Ans-1) Animals probably evolved from-(b) Choanoflagellates that formed colonies.
Choanoflagellates are colonial protists that are considered as the closest relatives of animals. And so animals probably evolved from them.
Ans-2) The early branch of an animal family tree is represented by- (b) Choanoflagellates that formed colonies.
Ans-3) Birds are considered as the descendants of the dinosaurs(specifically Archaeopteryx) which were reptiles. Hence, the reptile descendants that have feathers are- (b) Birds.
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1. Animals probably evolved from:
a). Placozoans that formed colonies
b). Choanoflagellates that formed colonies
c)....
1. If you were to build a phylogenetic tree of living animals, which of the following...
1. If you were to build a phylogenetic tree of living animals,
which of the following derived characters would appear first?
A. deuterostome development
B. true tissues
C. protostome development
D. bilateral symmetry
2. Birds and mammals are endotherms. They maintain body
temperature by producing heat through metabolism. Endothermy is
energetically expensive for an organism, yet endotherms have become
the dominant group of tetrapods. What is a major evolutionary
advantage of endothermy?
A. Endothermy allows greater independence from water.
B....
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phylogenic tree help 11. For this question, refer to FIG. 24.2 (p. 487) "The family tree...
phylogenic tree help
11. For this question, refer to FIG. 24.2 (p. 487) "The family tree of the lesser and great apes."This figure shows the derivation of "earlobes". Assume that evolution has not reversed this character state in any of the descendants of this ancestor which evolved earlobes. Given this, what do we know about earlobes? Orangutan Gibbon (14 species in 4 genera) Gorilla Bonobo Chimpanzee Human ebepodeny Robust canine teeth Prosimians: Bushbabies New World Old World and lemurs monkeys...
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Help ! ANSWER ALL PLEASE 1. If two species of cichlid fish are observed in the...
Help ! ANSWER ALL PLEASE
1. If two species of cichlid fish are observed in the same lake, they are said to be served as living only on separate continents, they are said to be a. sympatric; allopatric b. parapatric; parapatric c. parapatric; allopatric d. allopatric; sympatric e.allopatric; parapatric If two species of birds are ob. 2. Taxa that are defined by are likely to be monophyletic. a. homoplasy 3. Most of the different a. modern phyla b. ecological niches...
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For each of the following scenarios, list one or more options
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1. If you were to build a phylogenetic tree of living animals,
which of the following derived characters would appear first?
A. deuterostome development
B. true tissues
C. protostome development
D. bilateral symmetry
2. Birds and mammals are endotherms. They maintain body
temperature by producing heat through metabolism. Endothermy is
energetically expensive for an organism, yet endotherms have become
the dominant group of tetrapods. What is a major evolutionary
advantage of endothermy?
A. Endothermy allows greater independence from water.
B....
phylogenic tree help
11. For this question, refer to FIG. 24.2 (p. 487) "The family tree of the lesser and great apes."This figure shows the derivation of "earlobes". Assume that evolution has not reversed this character state in any of the descendants of this ancestor which evolved earlobes. Given this, what do we know about earlobes? Orangutan Gibbon (14 species in 4 genera) Gorilla Bonobo Chimpanzee Human ebepodeny Robust canine teeth Prosimians: Bushbabies New World Old World and lemurs monkeys...
29. All of the following are characteristics of insects EXCEPT: a. closed circulatory system b. jointed appendages c. exoskeleton d. specialized segmentation 30. Which of the following chordates is NOT a vertebrate? a. lampreys b. sharks c. hagfishes d. lancelets 31. Mammals that carry their young in a pouch for an extended period of time are the: a. marsupials b. monotremes c. placental mammals d. primates 32. In contrast to amphibian eggs, reptile eggs: a. lack an external covering b....
Help ! ANSWER ALL PLEASE
1. If two species of cichlid fish are observed in the same lake, they are said to be served as living only on separate continents, they are said to be a. sympatric; allopatric b. parapatric; parapatric c. parapatric; allopatric d. allopatric; sympatric e.allopatric; parapatric If two species of birds are ob. 2. Taxa that are defined by are likely to be monophyletic. a. homoplasy 3. Most of the different a. modern phyla b. ecological niches...
12. The ideal free distribution (IFD) involves individuals that have ideal information and are free to move about, while the ideal despotic distribution (IDD) involves individuals who have ideal information but are sometimes excluded from locations by better competitors. The IDD is to the IFD as a. Territoriality is to clumped dispersion b. Conditional strategies are to alternative strategies C. Migration is to reproductive value d. Anisogamy is to sex allocation 13. You are at home over spring break and...
Help with ALL please
ASAP I will give you a good rating
13) Why are fossils considered to be an incomplete record of evolution A) The fossil record shows changes in kinds of organism that lived on earth B) The fossil record shows that many animals are extinct The fossil record is based for organisms that had hands and D) Fossils document how new organisms come from pre g o 14) What is true of the fossil record of mammalang...
For each of the following scenarios, list one or more options
from the word bank that are appropriate
Answer the following questions: 1. (2 points) This species concept can be functionally applied most easily to the most species, but is potentially quite inaccurate in many instances: 2. (2 points) This occurs when there is easy, unlimited, uniform access to all necessary resources: 3.(2 points) This group(s) keeps embryos in a protective, waterproof shell with an internal food source: 4. (2...
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