an abundance of ______________ in earth's early atmosphere would have interfered with assembly  of organic compounds.

Q: not useful to infer evolutionary history in creating this

A: A phylogenetic tree, often called a phylogeny, is a diagram that shows how various species, animals,…

Q: How  the nucleotide base sequence of a piece of DNA is important to know someone to solve a crime?

A: Deoxyribonucleic acid, or DNA, is a fundamental component of all human cells. Each person has a…

Q: Why was boiling in concentrated acid a reasonable way to inferthe presence of biological materials…

A: Sometimes, bodies of biological materials are transformed into rocks after many many years. The…

Q: a direct outcome of the formation of the Moon according to the giant impact theory?

A: The giant impact theory suggests that the Moon formed out of the debris left over from a collision…

Q: Essay type : Answer the following questions. (please intend me atleast 3 to 4 paragraphs) Why do we…

A: Earth is so far the only planet that has the capability to sustain life on it. There are many…

Q: Research about the Biochemical analyzer XL 200, write a little history, principles the machine use…

A: As the name suggests, the Biochemical analyzer XL 200 is used to enhance productivity and turnaround…

Q: Which of the following techniques examines the decay of carbo an object? O A. Radiometric dating O…

A: For the determination of the age of living or nonliving materials the scientist usually determined…

Q: why water is essential to life on earth.

A: The water, chemical name is dihydrogen monoxide. Water is a polar compound. Polar compounds gets…

Q: Linnaeus’s significant development to modern taxonomy is

A: Taxonomy means the classification of items or objects. Taxonomy can relate to various industries and…

Q: Defend this statement: “The investigations of Antoni van Leeuwenhoek changed the world forever.”

A: Anton Van Leeuwenhoek was born at Delft in the Netherland. He died at the age of ninety. He did not…

Q: terra -cotta  is a type of

A: Introduction Developmental biology  is the field of biology that studies the processes by which…

Q: Radiometric decay of carbon-14 would be used in dating sedimentary rock. a trace fossil. an insect…

A: Radiometric decay is a method dating substances of possible majority of organic content. Principle:…

Q: Using the principles of relative dating, put the rock layers, faults, and igneous intrusions in a…

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

Q: 69. Theoretically, radiocarbon dating (Carbon-14) can date materials that are at most   1.31…

A: Radiocarbon dating (also known as carbon dating or carbon-14 dating) is a method of determining the…

Q: Volcanic ash can be used to date fossil finds because each time it is expelled by an eruption it has…

A: The answer is True

Q: come up with two illustrations of objects that exhibit patterns in nature and write a brief 3-5…

A: Objects in nature often exhibit patterns. It helps us to see the world around us more clearly. Here…

Q: Which method is used to assign numerical ages to events or materials? absolute dating half-life…

A: By measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure…

Q: M 1 2 3 4 10,000 bp 3,000 bp 1,000 bp 250 bp

A: On the lane 4 , When the DNA appears as a messy , continuous band at the bottom rather than a…

Q: The relationship between engineering geology and civil engineering

A: Engeneering Geology:  Engineering geology is the use of geology to engineering studies with the goal…

Q: A fossil is found to contain the radioactive parent and daughter isotopes uranium 235U, and lead…

A: INTRODUCTION The determination of the relative age of a rock is predicated on the principle of…

Q: A form of oxygen that has three oxygen atoms in each molecule instead of the usual two; toxic to…

A: It occurs both in earth's upper atmosphere and the lower atmosphere. It is the most abundant…

Q: The most useful method for dating ancient calcium rich cave deposits would be Group of answer…

A: Answer :- Option (D) is correct. - Uranium-Thorium Dating.

Q: Ftracheary elements.

A: Answer: The xylem tissue moves water and nutrients to various parts of the plant such as shoots and…

Q: Which technique did Charles Darwin use to measure the age of the Earth?   A. rate of erosion of…

A: Charles Darwin has a major contribution to the study of evolution. He gave the concept of "natural…

Q: what element rise that caused the diversification event in evolution of earth

A: Introduction : The rise in oxygen, which is termed the Great Oxygenation Event is an important event…

Q: Explain the unusual observations Walter Alvarez made in the Scalgia rossa formation in Umbria.

A: Walter Alvarez was born and raised in Berkeley, attended Carleton College in Minnesota, and received…

Q: diatomaceous earth

A: Diatoms are the single celled algae which has a wall of silica. Diatoms are photosynthetic , I.e…

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: Which one of two radiometric dating methods that we studied in our course is useful for the…

A: Absolute dating is process to get to know about the absolute numeric age or range of the burroed…

Q: Radiometric dating ... Group of answer choices A: is based on the scientific observation that…

A: Answer  E) all of these answers are true

Q: What quality of carbon makes it such a big deal in terms of life on earth?

A: In an ecosystem there are several components with different chemistry which helps to sustain an…

Q: Radioisotopes are useful in dating fossils and rocks because

A: Fossils  They are remains of animals which are preserved in ice or in deep underground or inside…

Q: Fossil films made by ______ are usually black or dark brown.

A: Fossils -- Term fossil refers to any trace of past life . It can be defined as organism remains such…

Q: lect each correct answer. M A molecule can be made of which of the follow O a single atom a single…

A: Atoms are the smallest unit of ordinary matter that forms a chemical element and plasma is composed…

Q: Why some animals and plants are kept in outside of their natural habitat .

A: What is a natural habitat and importance of natural habitat -A natural or ecological or…

Q: QUESTION 1 The first life on earth arose about ; the first eukaryotes appeared about O 3.5 million…

A: Life originated on the Earth millions of years ago, and since then innumerable varieties of living…

Q: Defend or refute the following statement: The uppertemperature limit to life is unrelated to the…

A: The intramolecular bonds are important in functioning of the biomolecules. They maintain the…

Q: ALL MOLECULES you expect to find in DNA

A: DNA is a polymer made up of monomer molecules called nucleotides. Each nucleotide molecule contains…

Q: True or false. The supercontinent pangaea formed about four billion years ago.

A: A supercontinent is a landmass that contains most or all of the land on Earth. The landmass formed…

Q: Four characteristics that must be evident in both paper and electronic records

A: Hospitals keep records of their patients. Initially, these records used to be in paper form,…

Q: A 50 words essay of how important to have an adequate knowledge of biochemistry in understanding…

A: Pathology is a study that deals with the causes of diseases. Pathologists examine the tissues,…

Q: One problem in radiocarbon dating of biological samples, especially very old ones, is that they can…

A: Radioactive carbon dating is the process of determination of the approximate age of an ancient…

Q: The way in which origin of photosynthesis affects subsequent evolution of life on earth.

A: Introduction  The origin and subsequent evolution of photosynthesis, the process by which light…

Q: The medical profession in the United States enjoys alofty position in the stratification structure.…

A: Introduction- Health, medicine, and health care,now a days are the main component of good health.…

Q: QUESTION 16 Unit 3 is titled "The Hearth Belt: North Africa and Asia" because all of the following…

A: North Africa and Asia is considered as one of the great cradles of human civilization. North Africa…

Q: Radiometric dating ... All of these answers are true O provides an accurate means of determining the…

A: Radiometric dating  Technique used to date materials such as rocks by observing the abundance of…

Q: The role of Carbon and Carbon compounds

A: Carbon is the most important element of living things because it can form many different kinds of…

Q: How Chemistry Affects Our Lives

A: Life is a characteristic of living things which is defined in its ability to increase in size…

Q: independent variable.

A: Variable A variable is a symbol that acts as a placeholder for expressions or quantities that can…

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.