EBK BIOLOGY
5th Edition
ISBN: 9780100667976
Author: Maier
Publisher: YUZU
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Chapter 10, Problem 6LTB
Summary Introduction
Introduction:
The shared evolutionary ancestry can be reflected by similarity in biological molecules such as all mammals contain DNA as their genetic material. Two or more species can contain the same gene as they have inherited from a common ancestor.
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_____ _____ is the paleospecies of premodern Middle Pleistocene hominins that is likely a common ancestor of both Neandertals and Homo sapiens.
Group of answer choices
Homo floresiensis
Homo heidelbergensis
Homo habilis
Homo ergaster
Australopithicus afarensis
A similar trait that is found in two different species (ex. streamlined bodies, wings, etc). Whether this trait is homologous or analogous in these two species, and why or how.
THE STICKLEBACK FISH: An excellent model for understanding evolution in the wild at many levels
Lateral plates develop
front to back
MOLECULAR
GENETIC LEVEL
Oceanic
MORPHOLOGICAL &
DEVELOPMENTAL
LEVEL
POPULATION LEVEL
Selection on the forms of
the plate gene varies
throughout a stickleback
life in fresh waters.
Freshwater
Freshwater fish don't
develop as many plates
Younger fish without the low form
of the gene survive better
June
November
Three regions of a
stickleback chromosome
have been linked to the
loss of lateral plates
and one lateral plate
gene has been
identified.
Older fish with the low form
of the gene survive better
ENSE
Chapter 10 Solutions
EBK BIOLOGY
Ch. 10 - Describe the theory of common descent.Ch. 10 - What observations did Darwin make on the Galapagos...Ch. 10 - Prob. 3LTBCh. 10 - In science, a theory is a(n) ___________. educated...Ch. 10 - The theory of common descent states that all modem...Ch. 10 - Prob. 6LTBCh. 10 - Prob. 7LTBCh. 10 - Even though marsupial mammals give birth to live...Ch. 10 - Prob. 9LTBCh. 10 - Which of the following taxonomic levels contains...
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- Match the terms in the left column to the appropriate blanks on the right. Terms can be used once, more than once, or not at all. shared trait distantly dependent similar analogous homologous different common ancestor closely independent Convergent evolution is the independent evolution of similar features in different lineages. It occurs when distantly related organisms obtain a shared trait trait due to analogous needs. Such resemblance is said to be homologous. Therefore, species with traits that appeared convergently do not have a common ancestor Submit Previous Answers Request Answer Reset Help X Incorrect; Try Again; 4 attempts remainingarrow_forwardWhich of the following is FALSE about homology? Homology refers to traits inherited from a common ancestor Homology is inferred when sequences are more alike than by random chance Homologous traits refer to having the same structure and function Homology is the most parsimonious explanation for sequence similarity All of the above are TRUEarrow_forwardHomo floresiensis describe the fossil/ DNA etc. and where it comes from. Describe what makes this species different from previously discovered species. Describe one way it changes our understanding of human evolution.arrow_forward
- PART I. THE THEORY OF EVOLUTION. DIRECTIONS: Complete the paragraph about evidence of evolution by choosing the correct word provided below. biogeography fossils homologous molecular vestigial The theory of evolution states that modern species have descended from ancestral species through evolution and speciation. It is supported by a large body of evidence such as found in geologic strata. These are remnants of ancient life that provide evidence for the evolutionary change through now-extinct forms that led to modern species. Modern species retain certain structures that arose from a common ancestor structures. Other remnants of what was once useful to the ancestors are or the findings of the original distribution of related species across the Earth the connections between ancient evidence, DNA sequences have also shed light on the occurrence of such as structures. Furthermore, we can infer from the landmasses. Finally, through some of the mechanisms of evolution.arrow_forwardTrue or False: The presence of vestigial structures in humans (such as tailbones) provides support for an evolutionary hypothesisarrow_forwardPlease help with the following prompt using as much details as possible. "One argument that is often made to invalidate evolution by natural selection is that some features of an organism are so complicated and need to work together in order to precisely function that it is impossible for such structures to arise from simpler ones by the random processes of mutation and selection: complicated design requires a designer. Using evidence from real organisms, explain how a complicated structure can arise from a simpler ancestral feature. You can use either an anatomical feature or molecular one."arrow_forward
- Fossils of an extinct giant sloth were found to be similar to a smaller species of sloth presently inhabiting the same region. This similarity could be best explained on the basis of which of the following? * Modern forms have evolved from earlier forms Independent assortment no answer Principle of use and disuse Inheritance of acquired traits Which of the following organisms is most closely related to each other? * MITOCHONDRIAL DNA CODES Organism DNA Codes American black bear ATT GGA GCA GÁC TIA Giant panda ATT GGC AСТ ААТ СТА Red panda АTT GGA AСТ ААС СТ Raccoon АТC GGA TсТ ААС СТ American black bear and giant panda Red panda and raccoon no answer Giant panda and red panda O Raccoon and American black beararrow_forwardThe tail flukes of a whale are _________to the tails of fish- they are not anatomically the same but evolved due to similar selection pressures. Group of answer choices homologous synapomophic convergent sister cladesarrow_forward"Evolution is always really, really slow." Please correct this statement in a meaningful wayarrow_forward
- "Natural selection is the only mechanism of evolution." Please correct this statement in a meaningful wayarrow_forwardWhereas most sarcopterygiians are oviparous (lay eggs), some sharks have viviparity (live birth) similar to that seen in mammals. This shared characteristic is an example of _______. a homologous trait an analogous trait divergent evolution a synapomorphy an ancestral traitarrow_forwardBoth humans and chimpanzees have large brains and well developed eyes. Chimpanzees and humans are also clearly close relatives. These similarities between chimpanzees and humans could best be described as; Homologous traits The products of many years of convergent evolution Homoplasies Analogous traitsarrow_forward
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