27. Which term describes any ancient remains, impressions, or traces of an organism or traces of its activity that have been preserved in rocks or other mineral deposits in Earth's crust? a. analogous feature b. homologous feature c. mutation d. fossi

Q: Which of the following phenotypes would most likely be the result of aHox gene mutation? a. abnormal…

A: Hox genes, a subset of homeobox genes, are a gathering of related genes that determine areas of the…

Q: Which bits of evidence would convince you that life originated as early as 3.2 bya? a. You look at…

A: The change in the heritable characteristics of the species across many generations is called…

Q: According to "Homo naledi – New Questions on Human Evolution ", what are NOT possible explanations…

A: The question is asking us to identify which of the given options are not plausible explanations for…

Q: Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are…

A: We need to find the statement that is accurately describes DNA of spirochete and Nematode.

Q: C. Vestigial structures 34. The forelimbs of humans, horses, cats, and bats are considered to be…

A: The organs which have same anatomical structure but are different in function is called as…

Q: Tell whether the statement is true or false.  1. The endosymbiont hypothesis state that prokaryotes…

A: The cells are the structural and functional unit of an organism that perform all the processes of an…

Q: Scorpions occupy every continent except Antarctica, and all scorpionsfluoresce under ultraviolet…

A: Answer is a.) The common ancestor of scorpions fluoresced.

Q: Which of the following is an accurate point that supports the idea that the earliest protocells…

A: DNA and RNA are the genetic material present in the cell.

Q: The fossil record shows that in just the last 600 million years, there have been five instances of…

A: Explanation: The most studied mass extinction, which marked the boundary between the Cretaceous and…

Q: 4. (5:17) Which of the following correctly describes a principle of natural selection? A. Variation…

A: Ans:- Option (B) is right.-- Individual members of a species are only able to pass down favorable…

Q: 38. According to the data shown in the table above, which of the following organisms is most closely…

A: Ans: Domestic Chicken

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: During the Paleozoic, many life forms developed hard parts (shells/bones/etc.).  Why would it be…

A: Shelled animals, the majority of which are sea-based, come in a wide range of shapes and sizes.…

Q: This video refers to Denisovans as a “Ghost Lineage.” In fact, Denisovans don’t even have a formal…

A: A type specimen is a single physical specimen that is designated as the representative of a…

Q: We live in the Cenozoic era, and scientists know more about this era and the epochs it’s divided…

A: The term 'Cenozoic' refers to a period of time ranging from 66 million years ago to the present day.…

Q: The three beetle species live in the same ecosystem, and they likely evolved from the ancestral…

A: Introduction: The process of speciation is how one species eventually divides into two or more…

Q: According to "Our Earliest Ancestors", why can’t scientists just do DNA analysis on these fossil…

A: The question is asking why scientists can't use DNA analysis to determine if fossil hominins are a…

Q: Approximately when did life first appear on land A. 500 million years ago B. 2 billion years ago…

A: Question - Approximately when did life first appear on land A. 500 million years ago B. 2 billion…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: