- What method can scientists use to determine when the fossil above appeared on Earth? SC.7.L.15.1

Q: What geologic evidence is left after a continent breaks apart?

A: Geology is a branch of earth sciences. This branch of earth sciences deals with both the liquid and…

Q: If a sixth extinction event is occurring, how is it similar or different from the previous five mass…

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

Q: Which of the following illustrates the correct way to presentthe scientific name of humans?a. Homo…

A: Human is the wisest creature on the earth. Biologists explain human as just another animal based on…

Q: ) Explain homology, list and explain the different types of homologies (also give examples)and why…

A: In some species there are similar features or structurs between them which indicates they shared a…

Q: A scientist discovers something new about the composition of the mantle. What type of rock (group)…

A: The mantle is the part of the earth between its crust and its core.

Q: What experimentation has been done on finding the source or raw material for the first life on…

A: Harold Urey and Stanley Miller are two American scientists who attempted to create similar…

Q: Why is it so important to learn about the Piltdown Hoax? Do you think it demonstrates that…

A: Piltdown Hoax was created when Dawson and Smith Woodward faked the discovery of the fossilized…

Q: Explain why it is difficult to use carbon-14 dating on 100-million-year-old dinosaur fossils

A: Carbon dating is a technique used for the determination of the age of an object which contains…

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: What was a significant result of the Mars Phoenix project?a. culturing bacteriab. verifying waterc.…

A: Mars, which is a planet of our solar system is believed to have conductive conditions for life…

Q: Scientists find an artifact next to an index fossil. What can they conclude about the unknown age of…

A: Fossils are any preserved remains, impression or trace of any once-living thing from a past…

Q: hat do scientists think the primitive Earth w

A: Researchers believe that early earth's atmosphere consisted of water vapor , carbon dioxide , carbon…

Q: Whichofthefollowingarenon-demographiccharacteristicsofstudypopulations

A: The analytical study of human populations is termed demography. Demography studies how populations…

Q: Which of the following is TRUE about the fossilization proccess: A. a stable enviornment is…

A: The question is asking us to identify the correct statement(s) about the fossilization process.…

Q: What experimentation has been done on finding the source of raw material for the first life on…

A: Raw materials  Raw material are the basic materials from which the things are made. Like raw…

Q: How do scientists determine the age of fossils?

A: Introduction :- Fossils are the preserved remains or traces of plants and animals that lived in the…

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: Which recently developed technology has been used in determining the history of human ancestry?…

A: Evolution can be studied by various aids like morphology, fossils, biochemistry, physiology,…

Q: If evolution is true then why do new species seem to appear out of nowhere in the fossil record?…

A: Evolution is the process by which species of organisms change over time through natural selection…

Q: From the early 1700s to the modern day, how did various lines of evidence clarify and improve…

A: Cetaceans are the true aquatic mammals that have evolved mechanisms to survive in the water.…

Q: How do plate tenctonics help scientist describe fossils??

A: The plate tectonics is known as the Earth's solid outer crust, the lithosphere is separated into…

Q: PART II. FOSSILS DIRECTIONS: Examine the illustrations of the marine organisms shown below whose…

A: Darwin proposed that fossil records provide evidence that living organisms evolved a million years…

Q: How is the layer of iridium used to tell the relative age of different rock strata and fossils?

A: Relative age is that the age of a rock layer compared to other layers. It is often determined by…

Q: During what geologic period did life on Earth begin?

A: Evolution is the process of gradual changes occurring in the species over a period of time, when the…

Q: 9) Rocks containing fossil evidence have been found in Canada suggesting how life on Earth evolved.…

A: They are the remains of an organism that are preserved. They can be found as traces of ancient…

Q: The 60,000 – 30,000 ybp occupation of Australia likely indicates that humans were making use of…

A: Boats have been used since prehistoric times during early settlement of Australia over 40,000 years…

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: diagram.

A: It is the technique used to determine which object or item is older in comparison to the other one.…

Q: What kind of fossils were formed out of dinosaur remains and activities? Why do you say so? (Give…

A: Dinosaurs lived many million years ago and they turned into fossils when they are dead. Almost 99%…

Q: What is precocene.  2. Different sources of precocene (plant and chemical).  3. Source of…

A: Precocene is members of Chromenes  and an aromatic ether having chemical formula C12H13O2. it is a…

Q: Which of the following is NOT true for relative dating methods: A. Relies on observational skills B.…

A: The objective of the question is to identify the statement that is not true for relative dating…

Q: The Americas (New World) was first peopled (colonized) approximately   1.5 million years ago.…

A: Colonisation refers to the large scale movement of individuals to a particular area and they settle…

Q: List several significant events in the history of life on earth that are associated with the K-T…

A: KT boundary is the boundary between the age of reptiles that occurred in the Mezoxoic era and age of…

Q: Which of the following applies scientific knowledge to the needs ofsociety?a. evolution…

A: Science and technology play a major role in shaping the society and contributes to their growth.

Q: Carbon-14 dating can be used to give an age for which of the following?   early hominids (~2…

A: Carbon 14 dating also called as radiocarbon dating. It is a method of age determination, depending…

Q: According to the land bridge theory, why may people have crossed into North America from Siberia?

A: Landbridge theory, states that early animals and people traveled from Siberia to Alaska across a…

Q: Radiometric dating uses the decay of              to             to determine how old fossils of…

A: Radiometric dating determines the age of historical objects in years via measuring the occurrence of…

Q: Describe the conditions that scientists think existed on early Earth.

A: Introduction  The origin of life on earth can be traced back to 3.4 billion years ago and as we now…

Q: From the early 1700s to the modern day, how did various lines of evidence clarify and improve…

A: Evolution is change in the heritable attributes of organic populaces over progressive ages. These…

Q: a horse leg and a human leg,

A: Answer: Causation, in legal terms, refers to the relationship of cause and effect between one event…

Q: 1. For how long has there been life on earth? 2. For what percentage of time has life existed on…

A: ​The geological time scale relates layers of rock (stratigraphy) and carbon dating to periods of…

Q: All of the following materials can be radiocarbon dated except Group of answer choices A: Seeds B:…

A: Radiocarbon dating  It is a method that provides objective age estimates for carbon based materials…

Q: Name the process of complete disappearance of a living species, races or group from earth surface.

A: Evolution is a natural process that includes several changes over many generations in the…