Compared to the other living apes, modern humans have_____ . a. a smaller brain b. shorter, finer body hairs c. greater sexual dimorphism in body size d. shorter, weaker thumbs

Q: Ardipithecus ramidus is distinct from members of the species Australopithicus afarensis because of…

A: The 4.4 million-year-old Ardipithecus ramidus, often known as "Ardi" (means "roots" or "base"),…

Q: In animals, Hox genes activate proteins to determine A. animal cephalic region O B. animal…

A: HOX genes are groups of regulatory genes which encode for the transcription factors and are…

Q: Although many mammals have binocular vision, the anatomical adaptation(s) that set primates apart…

A: The order Primates belong to the class Mammalia. The animals belonging to this group are lemurs,…

Q: A heterodont organism has: A. An absence of molars B. Only canines C.…

A: A heterodont organism is one that has many tooth types in its dentition, each of which has a unique…

Q: Which statement is true of hox genes? Group of answer choices A. they regulate development of body…

A: Hox genes - Most animal homeotic genes code transcription encodes proteins that contain a region  a…

Q: Homo habilus can be characterized as____. a. more robust than P. boisei b. somewhat similar to Au.…

A: The Latin word homo means "man" or "human." To emphasize how closely related this species is to our…

Q: Living lemurs are found only in A. Asia B. South America C. Africa D. Madagascar

A: Lemurs are a unique group of primates native to Madagascar.Lemurs have pointed snouts with wet noses…

Q: How was stress helpful for us in our evolutionary past?    A. None of these are correct.…

A: The objective of the question is to understand the role of stress in our evolutionary past.

Q: An inguinal hernia results from ___ a. testes that move out of the body where they develop like…

A: A hernia is defined as the bulging of organs or tissues through an abnormal opening in the body.…

Q: The skeletons of early fossil Homo and archaic Homo sapiens are marked by very ____ skeletons; this…

A: The cerebral cortex is the part of the brain that consists of the gray matter. The cerebral cortex…

Q: QUESTION 13 What is the most probable primitive condition for marsupial mammals (node D)? a. Claws…

A: Introduction   Marsupials are any members of the mammalian infraclass Marsupialia. Premature birth…

Q: he mammalian ____________ evolved 520 mya and the _________ developed 200 mya.     a. midbrain,…

A: The theory of evolution explains the history of life on Earth and how biological populations have…

Q: The closest relatives of bonobos are_____ . a. chimpanzees c. tarsiers b. humans d. Old World…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: Australopiths are_______ . a. a type of monkey c. extinct hominins b. wet-nosed primates d.…

A: Australopiths belong from Australopithecus, which evolve from 4.18 to about 2 million years ago

Q: According to "Life and Death 3MYA", Australopithecines had absolutely no sexual dimorphism.…

A: Australopithecines were a group of hominins that lived in Africa between roughly 4.2 and 1.2 million…

Q: According to the web article 'Elephants have evolved to be tuskless..., between 1977 and 1992 a…

A: In this discussion, we will delve into the effects of human-driven selection pressure on elephant…

Q: According to mitochondrial DNA Homo neanderthalensis and modern Homo sapiens diverged around____. a.…

A: Though genetically distant from contemporary humans, neanderthals are more linked to us than chimps…

Q: Chimpanzees are referred to as ____ bipeds. a. facultative b. ineffective c. obligatory d. habitual

A: Introduction  The chimpanzee (Pan troglodytes), also referred to as the chimp, is a species of great…

Q: Which of the following statements is FALSE? a. Only vertebrates possess HOX genes. b. HOX genes are…

A: The false statement is A only vertebrates possess HOX genes. Hox genes are homeotic transcription…

Q: 1.List three specific characteristics found in ALL primates that are absent in other mammals. 2.…

A: Primates possess several characteristics distinct from other mammals. They have opposable thumbs or…

Q: Over many generations, humans inherited thumbs to help us grasp onto objects. This trait that…

A: Evolution is the basis for development of complex features from simple features .

Q: The bacteria clostridium tentani releasew a toxin that ___? A. keeps muscles constantly contracted…

A: Clostridium tetani is a gram positive bacterium which releases tetanospasmin endotoxin, a potent…

Q: the most intelligent order of animals on the planet.

A: Primates consists of mammals such as humans, apes, monkeys, lemurs, lorises etc...

Q: Homo is best characterized by _________________ a.bipedal locomotion, large brain and biocultural…

A: Humans originate from Africa.

Q: Three morphological trends seen in the origin and evolution of modern humans include____. a.…

A: The correct answer is- b. decreases in relative brain size and body size, and a decrease in skeletal…

Q: Darwin recognized tortoises having different neck lengths on the different islands of the Galápagos…

A: Charles Darwin accompanied Captain Robert Fitzroy as a travel companion and naturalist on the HMS…

Q: Unlike Archaeopteryx, modern birds have_______ . a. a long bony tail c. a two-chambered heart b. a…

A: The oldest known fossil bird is Archaeopteryx, which dates from the late Jurassic period. It…

Q: A feature that distinguishes New World and Old World monkeys is ____. a. bipedalism b. a small brain…

A: New world monkeys are native to America while old world monkeys are native to Africa and Asia.  they…

Q: One of the earliest stone tool industry is the____. This is a significant development in hominin…

A: The correct option is: d. Oldowan; led to the eventual dispersal of Australopithecus out of Africa

Q: DISTINGUISHING Match the distinguishing features (on left) to their appropriate taxon (phylum or…

A: Answer:- Phylum Porifera = Spicules The sideroblasts in the Porifera secretes spicules whereas the…

Q: isa Nhich of the animals represents the oldest creatures in terms of evolutionary history?

A: Evolution is the process of changes in the characteristics of a species over many generations and…

Q: Certain physical changes were necessary to allow human ancestral species to walk on two legs…

A: Bipedalism is the ability to walk and running in two legs. The fossil structure says that the human…

Q: In the Figure below you can see an Aardvark (1), an Ant eater (2) and a Pangolin (3). Aside from…

A: The Aardvark, Anteater, and Pangolin are all unique mammals with distinctive characteristics.…

Q: The zona pellucida is important in mammals because it...

A: The zona pellucida is a thick extracellular layer that covers all mammalian eggs and preimplantation…

Q: Homo floresiensis fossils were discovered in_____ . a. Australia c. Indonesia b. China d. South…

A: The discovery of Homo floresiensis was largely unexpected, as most previous evidence suggested that…

Q: Which was NOT a trait of primates that influenced the trajectory of human anatomy? O a. retention of…

A: Primates are a group of mammals which include evolutionarily advanced features. Monkeys,…

Q: You studied the intermembral index in Lab 4. The graph below plots new data not in this lab for…

A: ANSWER: The correct option: 109 ; vertical clinging and leaping intermembral index of 109

Q: New World monkeys_____ . a. lack a tail c. are dry-nosed primates b. are bipedal d. include human…

A: The new age monkey can be classified in five groups. Callitrichidae, Cebidae, Aotidae, Pitheciidae,…

Q: Explain how human hunting has affected the traits of the African elephants. Explain why being a…

A: Elephants are the largest land mammals on earth and have distinctly massive bodies, large ears, and…

Q: Cranial and post cranial primary characteristics of archival Homo include____. a. Large browridges…

A: Introduction Archaic Homo sapiens or early Homo sapiens evolved much earlier than modern man. Brain…

Q: The oldest body fossils of a land animal are of_____ .a. insects c. cnidariansb. roundworms d.…

A:

Q: One of the earliest stone tool industry is the ____. This is a significant development in hominin…

A: The Early Stone Age starts with the most basic stone implements which were made by early humans.…

Q: Place the events in order. __ 1 (earliest)                   a. Neanderthals become extinct __ 2…

A: The primates are the mammals, that arises from the homonins such as humans, lemurs, monkey etc.…

Q: The plot shows that Australopithecus afarensis is most similar to ____ in its limb proportions. a.…

A: The plot shows that Australopithecus afarensis is most similar to option a. Terrestrial quadrupeds…

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.