Colonization of Land The Cambrian explosion Flowering plants Endosymbiosis Origin of Reptiles First life emerged

Q: The ancestral protist common ancestor of all animals lived approximately million years ago. 800 600…

A:

Q: Which statement about the Cambrian period is true? The first multicellular life appeared. Large land…

A: From the end of the preceding Ediacaran era 541;million years ago(mya) to the beginning of the…

Q: What triggered the Cambrian explosion that started 541 million years ago? All of the above O Higher…

A: Cambrian explosion refers to an event that occurred in the Cambrian period about 541 million years…

Q: The extinction of dinosaurs left gaps in the early ecosystems on earth. Explain briefly the…

A: Evolution is change in the species over a period of time.

Q: Table 1 Millions of Years Ago (Mya) Event First humans (genus Homo) The Origin of the Earth First…

A: According to astronomical research and geological evidence, scientists indicate the universe is…

Q: Ancient mammals became abundant during this period: a) Jurassic b) Triassic c) Carboniferous d)…

A: Mammals can be defined as the group of vertebrate animals  which constitutes  the class  of Mammalia…

Q: Using tables 2.1 and 2.2 as references, fill out the following table. The first item is given as an…

A: Geological time scale Geological time scale is a representation of Earth's history.

Q: Cuvier's idea of catastrophe related to asteroid collisions understanding that geological change…

A: Theory of catastrophes by George's Cuvier According to this theory, fossil show that animal and…

Q: Euparkeria lived during which time period * O Ordovician O Triassic O Cretaceous Paleocene Jurassic

A: There are different areas that are divided on the basis of life and the existence of different…

Q: Neanderthals and Denisovans split approximately 530,000 years ago. 430,000 years ago. 400,00 years…

A: Answer is 3rd option

Q: Which of the following statements is incorrect in the context of fossilization? Minerals dissolved…

A: The process in which part or whole of animal or plant is being preserved in hard form is known as…

Q: Fossil Record: Transitional Fossil: Vestigial Structure: Biogeography: Homologous Structure:…

A: Any preserved remains, impression, or trace of any once-living thing from a past geological age is…

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

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

Q: In which era of the Geologic Time Scale are we currently living ir O Cenozoic O Mesozoic

A: 2nd answer is cenozoic

Q: The first single-celled organisms on Earth probably evolved (a) 3,700 years ago (b) 3.7 million years…

A: Evolution is a process of slow and gradual change over a period of time. There are many pieces of…

Q: The appearance of the first hominoids dates to the ___________ period. Triassic Jurassic Cretaceous…

A: A hominid refers to a group of human and human-like apes which belongs to the Hominidae family. The…

Q: The current geological era is the ________.   Question 32 options:   Cambrian   Paleozoic…

A:

Q: Energy, the absence of molecular oxygen, chemical building blocks, and time were the requirements…

A: The change in the traits and characteristics of the population with time is termed evolution. The…

Q: STRUCTURAL STRUCTURAL DEVELOPMENTAL SIMILIRATIES WITH UNIQUENESS PATTERNS DNA OTHER ORGANISMS…

A: Polar bears live in the Arctic, on waters. Polar bears depend on ocean ice to get to the seals that…

Q: Given the life-style we live today, what pre-historic period gives us the ability to heat our homes,…

A: the ability to heat our homes, run our cars, and have a comfortable life was the ability of humans…

Q: Why do scientists think that the increased availability of oxygen in the atmosphere was an O…

A: Answer :- The increased availability of oxygen in the atmosphere was an important contributing…

Q: Describing HOw a Fossil Forms Put the steps in order to describe the formation of a fossit. sediment…

A: Fossils are remnants of organisms - animals and plants from the past eras that get preserved in the…

Q: Homo sapiens appeared in East Africa years ago 300000 O 100000 O 200000 500000 O 400000 O

A: Homo sapiens is the binomial nomenclature for the human species. Homo is the human genus, which also…

Q: The time of greatest evolutionary diversification in the history of life occurred during the (a)…

A: Introduction  Environment plays a major role in the diversification of organisms. For example, if we…

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: Below are some key events that took place during the long history of life on Earth. Arrange them in…

A: Constant change has characterized earth since its beginning some 4.5 billion years ago. life…

Q: Which of the following geologic and biologic events defined the Carboniferous period?   The age of…

A: The Carboniferous Period lasted from about 359.2 to 299 million years ago* during the late Paleozoic…

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: Flowering plants and mammals diversified and became dominant during the (a) Paleozoic era (b)…

A: Flowering plants are the angiosperms that produce flowers as organs of sexual reproduction.

Q: Which of the following events did NOT occur during thePrecambrian?a. Formation of the ozone layerb.…

A: Introduction The Precambrian Period, which predates the current Phanerozoic Eon, is the earliest…

Q: What's the largest unit of geologic time, lasting hundreds of millions of years? A. Era B. Eon C.…

A: INTRODUCTION Largest unit of geolic time lasting hunderds of millions of year are Eons.

Q: Which of the following is not a unit of geologic time? A epoch millennium era

A: The geologic time scale is the “calendar” for events in Earth history. It subdivides all time in…

Q: Arrange these events in order of occurrence, with 1 being the earliest and 6 the most recent. First…

A: From the time earth came into existence, till now, our planet has gone through several changes.…

Q: What is our current eon ______________, era _______________, and period _______________   Age…

A: Since multiple subparts are posted so first three subparts have been answered.  The geologic time…

Q: In undisturbed sedimentary rock, strata from the _ period are immediately below rocks from the…

A: Relative dating is the science of interpreting the relative order of events that occurred in the…

Q: Period was of unique importance to all ause during this Period aquatic vertebrates, like lobe finned…

A: Answer. Geological time scale is a chronological sequence of geologic and evolutionary events…

Q: The largest and most deadly of all Mass Extinctions in the history of Earth came at the end of the…

A: If we observed the geological time scale then we can see different evolutionary events occurs…

Q: A. Crossword on Earth's Record of Life Directions: Use the clues to answer the crossword puzzle. The…

A: Fossils are preserved remains of plants and animals whose bodies were buried in sediments. Fossils…

Q: The field of geology helped to set the stage for the Theory of Evolution through an understanding…

A: Evolution is the science of how life evolves over ages, and evolutionary biology is the science of…

Q: Cuvier's idea of catastrophe related to global geological events such as earthquakes extinction of…

A: Baron Georges Cuvier was a great French naturalist and zoologist. Cuvier is also known as the father…

Q: How do geologist define many of the boundaries between sections of geologic time

A: Eons are classified into periods, which are smaller time spans. The Phanerozoic is divided into…

Q: at is the term for an element that decays into another O A. Sediment O B. Mesozoic O C. Radioactive…

A: This is the physical phenomenon of certain elements of emitting energy in the form of radiation.

Q: Which of the following periods is the earliest during which animals may have appeared? a. Ordovician…

A: Extinction aids the evolution of life by making way for new species. The number of species going…

Q: Archaic humans appeared as early as ___________ years ago. (a) 5 million (b) 1.2 million (c) 250,000…

A: A multitude of Homo species co-existed starting around half a million years ago, and they are lumped…

Q: The reason we are able to fuel our cars and power our cities is due to the absence of certain…

A: The Carboniferous was a time of marine invertebrates with many different forms. Carboniferous period…

Q: Information molecule to get evolved first on the primitive earth was : (1) Protein (2) DNA (3) RNA…

A: Introduction: DNA, RNA, or protein are referred to as information molecules because they participate…

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.