Evolution Answers

In the social constructivist view, learning occurs through participation. How can you relate to this? Can you recall any instances, in any context, where you learnt through participation? Discus your experiences with the social constructivist view in min

Choose any vertebrates and create phylogenic tree showing their evolutionary relationships. This tree should be primarily based on physical characteristics, such as:

I. Presence or absence of a backbone

II. Ability to breathe in air or water

III. Cold or warm blooded

IV. Carnivore, herbivore, or omnivore

V. Presence or absence of hair/fur

VI. Any other external structures such as horns

fifty heterozygous brown rabbits are placed with 100 homozygous white rabbits. what are the allele frequencies for brown fur (B) and for white fur (b)?

How might reproductive isolation lead to even stronger reproductive isolation? Create a fictitious example using some of the isolating mechanisms mentioned in this module.

What skulls do elk and caribou have in common

 If you have ever grown a plant on a windowsill, you may have noticed that the plant tended to grow toward the light coming in the window. Thus, the plant had phenotypic plasticity in shape in response to light in the environment. How could this type of phenotypic plasticity contribute to greater fitness for a plant growing in nature?

Speciation has two stages. Name and explain both stages with examples.

15.The following are the pieces of evidence of evolution that may be used to infer the evolutionary relationship between organisms EXCEPT:

a. Comparative Anatomy

c. Molecular Bonds

b. Fossil record

d. Embryology

16.Identify what evidence of evolution is used: vertebrate animals such as humans, chickens and fish have gill slits and tails during their embryonic stage.

a. Fossil record

c. Molecular Biology

b. Comparative Anatomy

d. Embryology

10. How will you differentiate analogous structures from homologous structures as evidence of evolution?

a. Analogous structures indicate common ancestry while homologous structures suggest evolution because of same environmental factors.

b. Analogous structures are structures which indicates that organisms might developed structures with same function as needs arise while homologous structures showed pattern of common descent from different body structures of closely related specie.

c. Both analogous and homologous structures are body structures used by researchers to study the evolutionary development of organisms while vestigial organisms showed different result.

d. B and C

11. What evidence of evolution is portrayed by the unique species on islands which are usually isolated from another mainland?

a. Fossil record

c. Embryology

b. Comparative Anatomy

d. Biogeography

8. This is the study of body structures of organisms to compare and infer evolutionary links. a. Fossil record c. Embryology b. Comparative Anatomy d. Biogeography9. Which among the following best explain the fossil records as an evidence of evolution? a. Recorded events from the past indicates that the Earth was once filled with water. b. Fossils suggest that the Earth is not the same as it is today, for instance there were once a huge massive interconnected land termed as Pangaea. c. Fossils recorded the history of life on Earth and indicates that ancient life forms were different from modern day species. d. Recorded activities of animals from prehistoric times suggest that people came from monkeys.