The largest and most deadly of all Mass Extinctions in the history of Earth came at the end of the Period, when only 5% of the existing species survived. Nobody knows exactly what caused this event, so it remains a mystery to this day. Quaternary Devonian Ordovician Permian

Q: What seems to be a common occurrence with all mass extinction events? Rising CO2 Rising water pH…

A: Introduction  The word "extinction" refers to the end of a particular type of organism or a set of…

Q: Organisms living at the bottom of oceans, rivers, and lakes are all called benthos.

A: Introduction: The benthic zone, which includes the sediment surface and some sub-surface layers, is…

Q: The Lower Paleolithic period consists of the Oldowan and Mousterian stone tool traditions. Group of…

A: Oldowan tools were used during the Lower Paleolithic period but the Mousterian stone tool traditions…

Q: Paleomagnetic reversals cause mass extinctions when they occur. Group of answer choices True False

A: False.

Q: Euprimates

A: Phylogeny of Primates: These are one of the most diverse orders of living mammals with 80 genera…

Q: Plate tectonics were a major factor in shaping life on this planet. Explain how plate tectonics can…

A: Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide…

Q: Relative dating of sedimentary rocks allows scientists to assign specific dates to fossils.

A: It is difficult to date sedimentary rocks since they range to billions of years ago. So, the…

Q: True or false: Adaptive radiation can itself set conditions for mass extinction

A: The question is asking whether adaptive radiation, a process in which organisms diversify rapidly…

Q: The geological record indicates that over the course of the last 510 million years, the Earth has…

A: It is a chronological sequence or time line of geologic as well as evolutionary events that includes…

Q: Fund the KT Boundary Layer Found the DNA structure Found the DNA shape Described Natural Selection…

A: Evolution is the gradual change in the inherited traits of biological populations over many…

Q: What is a mass extinction?  What makes the 6th mass extinction that is happening right now different…

A: Mass extinction is when a species vanishes or goes extinct much faster than they are replaced.  It…

Q: -If 30 percent of the carbon-14 atoms remain in a sample, how long ago did the organism die? -Is…

A: The unstable isotope of the carbon is Carbon 14 (C-14). The half-life of a C-14 is 5730 years old.…

Q: Event How Long Ago? # Organisms Extinet Causes Cretaceous

A: Cretaceous extinction :  Cretaceous extinction took place about 66 millions ago . Organisms which…

Q: Give two lines of evidence supporting the asteroid impact hypothesis for the Cretaceous extinctions.

A: The evidence is given below.

Q: Which of the mass extinctions was the largest? What percentage of life went extinct during that…

A: Mass extinction is defined as the dis-appearance of a large scale of biodiversity (animals +plants…

Q: Why are fossils from tropical rainforests (such as Brazilian Amazon) more rarely found than the ones…

A: Fossils- they are preserved remains of any living thing from the past. It can be an impression or…

Q: The 6th (Holocene) mass extinction is mostly the result of human activities. O True O False

A: Mass extinction refers to the loss of biodiversity on a large scale due to massive extinction of…

Q: In 1983, a team of scientists discovered a fossilized bone of a giant bird when excavating land in…

A: Fossil A remnant or imprint of extinct animals or plant on rocks, deep sea, or snow is known as…

Q: Question 5: Give a brief description of the evolutionary changes that occurred throughout geologic…

A: A phylogenetic tree is a diagram that delineates the connections between a few species or groups of…

Q: Imagine that a species of flightless bird lived on the supercontinent Laurasia during the Jurassic…

A: The movement of tectonic plates in the geological time resulted in the splitting of single landmass…

Q: Why was it believed that life began in the seas and not in land or air? * Land and air were…

A: Option a is correct  Land and air were inhospitable places for life during the archean eon.

Q: Based on the figure below, what is the number of turnovers in stage B? D 34 24 16 4 Geological…

A: Species turnover is defined as the number of species in a specific geological age which pass over to…

Q: The Andes are the longest continental mountain range in the planet and influence the biogeography of…

A: Allopatric speciation is the divergence of physically separate populations of a species, occupying…

Q: Describe one of the major extinction events during the Late Paleozoic or Mesozoic (include when it…

A: Description of the major extinction event occurred in late paleozoic Or medozoic era.

Q: Which later represent the oldest layer

A: The earth internal structure is given in the image with different layer of earth.  The layer of…

Q: Which of the following is characteristic of the end of the Paleozoic Era? a There was a mass…

A: As experts believe, the Earth was formed as a result of the Big Bang Explosion. The geological time…

Q: construction project required digging hundreds of feet into the ground, which exposed many discrete…

A: Theory of evolution: Evolution is a biological process involving the change and adaptation of all…

Q: _is the study of the process of what happens to biological remains after an organism dies. This is…

A: Stratigraphy is the study of arrangement of rocks in layers or strata. Primatology is the study of…

Q: In the figure below which letter is pointing to the Occipital Bun O E This is FOSSIL #1 below…

A: The major bone of the occiput and the most posterior cranial bone is the occipital bone. Like all…

Q: In the figure below which letter is pointing to the EYE BROW RIDGE This is FOSSIL #1 below Top views…

A: The skull is an important and anterior component of the axial skeleton that houses the components of…

Q: What is thought to be the correct sequence of the following events during the Carboniferous period?…

A: Introduction :- Clubmosses, horsetails, ferns, gymnosperms (including conifers), and angiosperms are…

Q: This tropical area that existed 37-29mya provided was home to many various species, including…

A: The Rukwa Rift Basin is an endorheic rift basin in southwestern Tanzania that includes Lake Rukwa.…

Q: Equater Permian - 225 million years ago Triassic - 200 million years ago Jurassic - 135 million…

A: Introduction Twenty million years ago the Indian and Asian continental plates clashed and pushed up…

Q: Humans first began to settle down in permanent villages, adopting a lifestyle of farming and…

A: The question is asking about the period in human history when humans first began to settle down in…

Q: The largest mass extinction on record is the mass extinction event. O Late Permian O Late…

A: According to law of superposition within a sequence of layer of sedimentary rock the oldest layer is…

Q: Radiometric dating measures the decay of radioactive isotopes present in layers where fossils are…

A: Radiometric Dating denotes reliable clocks to date out ancient events back to the formation of Earth…

Q: TRUE OR FALSE: Radiometric dating measures the decay of radioactive isotopes present in layers where…

A: Any method for determining the age of both organic and inorganic materials resulting from…

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.