2. The greatest extinction in the fossil record, causing the extinction of about 52% of marine vertebrate families from that time period (as well as high numbers of terrestrial extinctions), is considered to be: A. the Ordovician/Silurian extinction B. the Devonian/Carboniferous extinction C. the Permian/Triassic extinction D. the Triassic/Jurassic extinction E. the Cretaceous/Tertiary extinction

Q: The Cenozoic Era extended over which of the following time periods in the fossil record? A. the…

A: Answer : The Cenozoic Era extended over  time periods in the fossil record is :  a)  the Paleozoic…

Q: 5. Darwin observed all these patterns except for: A. New species replaced extinct species of the…

A: Introduction: Charles Darwin is known for developing the Theory of Evolution in several places…

Q: 2. The origin of several new species of new world monkeys (in South America), from ancestral species…

A: Origin of new species in a particular area for a certain period of time is called the speciation.

Q: Difference in the beaks of finches found in Galapagos Island compared to those that are found in…

A: Darwin observed the Galapagos finches that had a graded series of beak sizes and shapes and…

Q: 30. When organisms develop similar features in environments that are geographically far apart but…

A: Ans: Convergent evolution

Q: Question 1:  Mass extinction ocurred on the following time and era except for: A. Mesozoic B.…

A: Question 1) Mesozoic era : At the end of this era the about 70% of all plants and animals were…

Q: True or false: Within the fossil record, the oldest fossils are generally found in the upper-most…

A: Fossils are conserved or well maintained structure of dead organisms in the past history . Learning…

Q: Which of the following models is supported by the observation that few transitional links are found…

A: Transitional Fossil:          Any fossilized remains of a life form that exhibits traits common to…

Q: 1. The image above (i.e., Figure A in the supplemental file) depicts which type of evolutionary…

A: Cladogenesis and anagenesis are two essential evolutionary biology processes that play critical…

Q: ecological conditions

A: Evolution: It is defined as the process by which the species adapt over time in response to their…

Q: 5. Convergent evolution _________.   A. has not occurred in vertebrates but is widely acknowledged…

A: Answer. We often find unrelated animals converging on the same form or structure because that form…

Q: From which biogeographic province do fossils of the closest ancestors of marsupials appear to…

A: Marsupials, however, do things a little bit differently. Young develop inside their mother in a…

Q: 7. Fossils can form in several ways. (A) Explain 2 of the more common ways that fossils form and how…

A: fossils are the remains or impression of a prehistoric plant or animal embedded in rock and…

Q: All lemur species live in ____ and their diversity is the result of _____ a. The American…

A: Introduction: The founder effect is one form of genetic drift. This is the phenomenon in which there…

Q: Ardipithecus ramidus lacked the specialized teeth seen in living apes (such as exaggerated canines).…

A: Any animal or plant retained in the Earth's geological record that is representative of a specific…

Q: Biologists studying living primates in recent years, such as Geladas and Baboons, have noticed that…

A: *chronospecies a species derived from a  development pattern that is involved with an continuous and…

Q: 19. When a radio-isotope in a fossil with a half-life of 3,000 years has been reduced to 1/8th of…

A: On completion of each half life  the  amount of the substance reduces to half of its initial value.…

Q: How does the study of plate tectonics help in understanding probable evolutionary events? Explain…

A: In this question we have to describe about how tectonic plates sliding result in evolution. See full…

Q: Which of the mass extinctions appears to have removed the most animal groups? How long ago did this…

A: BASIC INFORMATION EXTINCTION  It is basically the death of the present organism living in a…

Q: 5. The Mesozoic Era extended over which of the following time periods in the fossil record? A. the…

A: Answer - B. The age of reptiles", from 251 million years ago to 65 million years ago.

Q: 1. The woolly mammoth lived from the Pliocene to the Holocene time period. Compare the temperature…

A: Answer: TEMPERATURE: It is the measure of the level of heatness and coldness.  It  can be measured…

Q: 24. Which of the following species would ordinarily be at the highest risk of extinction? A. whales…

A: Extinction is a permanent termination of a particular species from the Earth. Several species are…

Q: 3. According to the red list (by the International Union for the Conservation of Nature), which…

A: IUCN: It is the world's most comprehensive information source for the extinction risk of species.…

Q: Anole lizards can be found on many islands in the Caribbean that share similar environmental…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The greatest mass extinction episode in the history of life occurred at what boundary? (a)…

A: Mass Extinction events can be defined as those events in which half or more than half of all…

Q: In the past 500 million years there have been ________ mass extinction events.   A. two     B.…

A: Introduction  Extinction refers to the complete disappearance of a species or group of organisms…

Q: The possible existence of E.H.1 (extinct hominin 1) was a concept introduced in class lectuer. This…

A: Apes evolved alongside hominids, although they are not hominid ancestors. The progenitors of both…

Q: Predict how the change in temperature may have impacted the woolly mammoth and its habitat. Use the…

A: Researchers have found evidence to suggest that climate change, rather than humans, was the main…

Q: 14. What is the name of the group of hominins that lived between 2.4 and 1.4 million years ago?

A: Primates give rise to prosimians and anthropoids. Prosimians include lemur, loris and tarsier.…

Q: Which of the following patterns of evolution is most supported by the fossil record?   a. Descent…

A: Evolution is the change in the characteristics of a species over several generations and it relies…

Q: Which of the following is associated with the Cenozoic era? O a. Warmer planet O b. Different…

A: The answer is given below:    The first two are associated with the Cenozoic era.

Q: 29. When predator and prey species evolve alongside one another due to their close association, this…

A: Prey and predator species A predator species depends on the other organism for feeding. such species…

Q: Q5: Which taxa is most closely related (has a more recent shared ancestor) to the crocodiles? Q6:…

A: An display of the estimated degrees of evolutionary relationships among a chosen group of taxa…

Q: The best studied of the mass extinctions is the Cretaceous extinction. Why do you think it has been…

A: The mesozoic era began with the Triassic period and ended with the Cretaceous period. The Cretaceous…

Q: 18. Adaptive radiation is a variation of which of the following types of evolution? A. Coevolution…

A: Natural selection is an essential "evolutionary process". It implies that nature selects creatures…

Q: Remains of organisms are examples of evidences that paleontologists use in studying evolution. How…

A: The preserved remains of organisms whose bodies were buried in sediments, such as sand and mud,…

Q: Which of the following mass extinctions caused the loss of over 80% of species and was due to…

A: Various mass extinction events that occurred in the history of the earth are- Ordovician-silurian…

Q: best s e comi

A: Marine biota can be divided into species that live in either the pelagic (plankton and nekton) or…

Q: Scientists on a fossil expedition in the Florida Everglades excavated an area with four strata…

A: Fossils are a good way to study various aspects of evolution and various genetic lineages the help…

Q: Calcium ions play an important role in cell communication. What role does it play in this process?…

A: Calcium ions assume a part in cell volatility, exocytosis, apoptosis, and also transcription.…

Q: 6. Describe one major event in Earth’s natural history. The event can be an evolutionary innovation…

A:

Q: 3. 2. Application Sapiens existed on Earth for a relatively long time? Explain. Yes, 300,000 Years…

A: Homo is the Latin word for 'human' or 'man' and sapiens is derived from a Latin word that means…

Q: a. Based on the number of surviving individuals and the survival rate of individuals in each…

A: Survivorship Curve This type of curve depicts the individuals of a given specific population that…

Q: Archaic Homo sapiens were present approximately     400,000 - 125,000 years before present.   2.5…

A: Archaic Homo sapiens were present approximately 400,000 to 125,000 years ago.