we the first group to leave Africa? If not, who was

Q: Why are there so many marsupials in Australia but not in South America?

A: Australia is the kingdom of marsupials containing marsupials such as kangaroos, koalas and wombats.…

Q: How does the fact that all ethnic groups except Africans contain some Neanderthal DNA (1–4 percent…

A: Modern humans (Homo sapiens) were evolved in Africa around 2,00,000 years ago during the…

Q: What is genetic drift, gene flow and a population bottle neck

A: The study of genetic variation in a population is known as the population genetics. It involves…

Q: According to "The Complex Evolution of Homo sapiens", what helped our species to flourish and spread…

A: The question is asking about the factors that contributed to the successful spread and flourishing…

Q: How have the rate and number of people added to thehuman population each year changed in recent…

A: In the recent centuries, the human population has grown exponentially. There were approximately 500…

Q: What is the first animal on earth?

A: The earth is 4.543 billion years old and the first organism to appear on the Earth’s surface was…

Q: Why was there a need to improve on the system of classification?

A: Classification is the grouping of organisms based on similar and dissimilar characters that can be…

Q: What is a hominin?

A: Hominins are the members of a tribe from the subfamily Homininae. Hominin Kingdom: Animalia Phylum:…

Q: What helped our species to flourish and spread throughout the world?    A. The demise of the…

A: The question is asking about the factors that have contributed to the successful spread and…

Q: Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become…

A: Oxygen is one of the most important molecules or elements for all living organisms. It is…

Q: In one paragraph, using your own words, describe how natural selection led to polar bears evolving…

A: Introduction :- Natural selection is the process by which individuals with different phenotypes…

Q: Which areas or countries in South America have sparse populations? Why?

A: South America is one of the seven continents present on our planet.

Q: what were some of the change over time that happen in whale science, identify the major discoveries…

A: The whale population define to the number of whales, which are big (larger) marine mammals belonging…

Q: Have homo sapiens stopped evolving?

A: Evolution is described as the change in the characteristics of a population or species over time or…

Q: Why did ancestral mammals survive the asteroid impact while the dinosaurs did not?

A: If an asteroid coming on earth and breaks into fragments, any fragment larger than 35 meters across…

Q: Which is the true statement about natural selection? 1. natural selection can cause some traits to…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: What is the possible explanation for why so many Europeans have lighter skin?

A: Quantitative traits are controlled by more than one genes and are also influenced by the…

Q: Humans and chimpanzees are sister species. Explain what thisstatement means.

A: The genetic difference between the two is very less. Humans and chimpanzees are closely related.…

Q: How do discoveries mentioned in “First Africa”, then the World fit Assimilation to be a skilled…

A: According to several "evolutionary theories", living creatures change their physical and anatomical…

Q: What does the term local population mean?

A: A population is defined as the number of organisms of the same species living in a particular…

Q: which modern humans had already spread out through much of Asia?

A: It is believed that the most dominant and intelligent species on earth are humans. They are…

Q: Does the term gene pool apply to individuals, populations, or both?

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…

Q: Name three ways that humans have affected life on Earth.?

A: humans have affected the earth environment in many ways. The three Major problems are  1-pollution…

Q: What do you think helped Homo sapiens thrive and populate the world? explain

A: Homo sapiens is the scientific name for the modern human species, which is the only surviving member…

Q: Which scientist observed natural selection in Galapagos finches? O Isaac Newton O Galileo O Charles…

A: Galapagos finches are group of birds that were found in Galapagos Island.

Q: The hypothesis regarding how New World Monkeys arrived to South American from the Old World is…

A: Ans: The question is single true or false type which is based on rafting or dispersal hypothesis and…

Q: Why do people of European descent have a small portion of Neanderthal genes? Why don’t people of…

A: A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis…

Q: This illustration from an old textbook shows some of the over 150 different dog breeds that can be…

A: Breed is a specific group of domestic animals having homogeneous appearance,  behaviour and other…

Q: Darwin’s view of the evolution of the giraffe was

A: According to the question, we have to discuss Darwin's view of the evolution of the giraffe. So, let…

Q: What is a hominid?

A: The definition of the word Hominid has changed many times in the past few years. However, one thing…

Q: Which is the correct format for a scientific name? a. homo sapiens b. Homo sapiens…

A: Scientific Name:                 A name coined by scientist to recognize the formal system of naming…

Q: The geocentric model of our solar system was favored by all of the following investigators except:…

A: The objective of the question is to identify the investigator who did not favor the geocentric model…

Q: Which areas of countries in South America have dense populations? Why?

A: INTRODUCTION Ecuador has the highest population density in South America.

Q: Sixteen people are rescued from a raft adrift in the middle of the ocean. When tested, many of these…

A: The blood group varies significantly according to the regions in the world. Thus the ABO blood type…

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: What is karyogamy?

A: Sexual reproduction is a type of reproduction, which involves a complex life cycle in which a gamete…

Q: What did you find about our ancestors?

A: Hominoids such as gibbons (lesser apes) and the great apes (chimpanzees, gorillas, and orangutans)…

Q: what did darwin find when he went to Tierra del Fuego in his journey? what tools did he find? how…

A: Darwin first arrived in Tierra del Fuego on december 17, 1832, He noted his first encounter with the…

Q: What are the names of our ancestors?

A: Ancestors: Ancestors simply mean forefathers from where one is descendent. Two persons have genetic…

Q: Which of the four evolutionary mechanisms make a population better adapted to its environment? A.…

A: The four basic evolutionary mechanisms are: Natural Selection Genetic drift Mutation Gene flow…

Q: olden age? And when did it started?

A: Islam is an Abrahamic monotheistic religion teaching that Muhammad is known as the messenger of God.…

Q: Anc World mys Orang (A444C4 Gefle c aped a) A gorilla is equally related to a human and an…

A: Phylogenetic tree is constructed to understand the relationship among organisms based on their…

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.