What is the closest common ancestor of the Allosaurus and Aves? A. Maniraptora B. Theropoda C. Dramaeosauridae D. Dinosauria

Q: Vertebrate jaw bones evolved from____ . a. gill supports b. ribs c. scales d. ear bones

A: Vertebrate jaw by A jaw allowed vertebrates to use a large variety of food and interact in predation…

Q: What are Animals which are irregularly shaped

A: Animals which are irregularly shaped are called as ASYMMETRICAL SYMMETRY

Q: What were the adaptations that improved the ability of each of the following groups to survive on…

A: An adaptation is a modification of an organism, that makes the organism is more stable for…

Q: What adaptation did lobe- finned fish have that was different than the previous organisms? A. lobes…

A: Introduction  Fish are aquatic vertebrates that lack limbs with digits, such as fingers or toes, but…

Q: What genetic changes led to the increasing complexity of the arthropod body plan?

A: Answer- Arthropods are among the most adapted phyla on the planet. There are many factors…

Q: The evolution of which of the following features of mammals is hardest to trace through the fossil…

A: Fossil records are the remains of dead organisms that remained intact in various layers of soil in…

Q: What evidence is there that dinosaurs brooded their eggs and tended their young long after they…

A: Dinosaurs are an assorted gathering of reptiles of the clade Dinosaurian. They initially showed up…

Q: Describe what happened to the dinosaurs.

A: Dinosaurs were the ancient organisms that live on the Earth 66 million years ago. It has been…

Q: What other reason besides continuing to use trees might explain why early hominins had partially…

A: Hominid:            The group comprises all modern and extinct Great Apes signifies modern humans,…

Q: D) CLASS MAMMALIA What are the general characteristics of mammals? - What are the 3 types of mammals…

A: There are 27 orders in total, divided into three subclasses dependent on reproductive strategies…

Q: What is the evolutionary relationship of Neanderthals to Homo sapiens?

A: While a modern human who lived about 40,000 years ago was found to have about 6-9 percent…

Q: Which is more closely related to a human, an octopus or tunicate? Explain.

A: The relationship between phylogenetic distance and ecological similarity is key to understanding…

Q: ___________ were an early group of humans with short, sturdy builds and heavy supraorbital ridges…

A: Answer is d.) Neandertals.

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: Chordates are named for having this generalized structure. A. Spinal cord B. Stomochord C. Notochord…

A: The chordates is an advanced group in the animal kingdom. The chordates include cyclostome,…

Q: Some scientists believe the first hominid to bea. Australopithecus boisei.b. Australopithecus…

A: Hominid: Hominid is a primatological term that belongs to any member of the family Hominidae. They…

Q: how did bat wings evolve from arms?

A: Evolution is the process of change in the features of an organism with time. It is based on the…

Q: Chordates are grouped with starfish because both are protostomes, true or false?

A: The Correct answer would be False because starfish is neither chordate nor a protostome, it is…

Q: Which group of hadrosaurs had crests?

A: Hardradosaurids means bulky lizards. They were the family of herbivores dinasaurs. They were the…

Q: Hadrosaur is May have been the only _____ dinosaurs

A: Step 1 The Mesozoic era had witnessed both rise and fall of reptiles. A large number of ruling…

Q: In what chronological order did the following traits evolve? a) First the mesoderm, second the…

A: The correct option is C First the amnion, second the mesoderm, third the notochord and fourth…

Q: how many million years ago did amphibians appear?

A: Amphibians are cold-blooded vertebrate tetrapods. The class amphibia comprises frogs, caecilians,…

Q: The scientific name for the African rock python is Python sebae. Which name indicates its genus?

A: A name given to a creature by researchers, notably the scientific name, which includes the genus and…

Q: What group of animals is thought to have moved onto land to become the first amphibians?

A: Frogs, turtles, toads, skinks, and caecilians are all members of the class of cold-blooded…

Q: The defining trait of hominins is __________.a. tool use b. bipedalism c. a big brain d. endothermy

A: Living organisms are classified into different groups based on the phylogenetic and evolutionary…

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: How did the following fish groups evolve? a) Agnatha b) Chondrichthyes c) Osteichthyes d)…

A: Although numerous fossil fishes have already been discovered and documented, they only represent a…

Q: If you discovered a fossil bird with scales on the body & teeth in the beak. What would…

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

Q: You discover a new species of animal that has hair and three inner ear bones. What class would you…

A: Answer E) Chordata B) Mammalia

Q: Hagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group?…

A: All chordates have endoskeleton with a backbone for the support of dorsal nerve cord and muscle…

Q: Which of the following could be considered the most recentcommon ancestor of living tetrapods?(A) a…

A: The term “tetrapods” means “four feet”. The tetrapods are the animals that belong to the superclass…

Q: Tetrapods evolved from_______ . a. sharks c. lobe-finned fishes b. teleosts d. placoderms

A: All extant and extinct creatures that evolved from the last single ancestor of amphibians, mammals,…

Q: the animal kingdom was divided into 5 main clades.  Which clade has animals without true tissues…

A: All living organisms that are eukaryotic, multicellular species belong to the animal kingdom that is…

Q: writes a paragraph that describe the different types of evidence for the fact that tetropods evolved…

A:

Q: Describe how paedomorphosis as a mechanism could explain the evolution of the chordate body plan…

A: Explanation: Paedomorphosis is a mechanism that can explain the evolution of the chordate body plan.…

Q: What changes in egg design allowed reptiles to lay egg on land?

A: The theory of evolution by natural selection suggests that due to the dissimilarities in their…

Q: Does Alaska have more native birds or reptiles . Explain

A: Alaska  Numerous and diverse species are located in Alaska. It is a vital habitat for many organisms…

Q: Orrorin tugenesis was bipedal because it left footprints that showed it had an arch to its foot like…

A: Bipedalism allowed hominids to entirely free their arms, allowing them to quickly produce and…

Q: Cephalopods have complex eyes that arose separately from vertebrate eyes that are also used in…

A: Answer:-  Cephalopods vision system is very complex systems like in vertebrate .  And the eye…

Q: Which statement best explains why Lystrosaurus fossils are found on these two continents?

A: A fossil is any preserved traces, impression, or residue of a once-living thing from a previous…

Q: Despite the differences in neck length, mice, humans, and giraffes all have seven cervical…

A: B. Homologous structures.

Q: How many years ago did amphibians appear?

A: The amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. The different species…

Q: What is dinosaur

A: Introduction  Reptiles are animals belonging to the Reptilia class, a paraphyletic grouping that…

Q: According to Matthew Baron, the only group of dinosaurs that was composed entirely of…

A: Triassic Period was the first period of the Mesozoic Era and during which the first dinosaurs…

Q: Which clade does not include humans?(A) synapsids(B) lobe-fins(C) diapsids(D) osteichthyans

A: Clades are the group of organisms that are classified on their shared traits with their common…

Q: A bird or feathered dinosaur is ________. a. Neornithes b. Archaeopteryx c. Enantiornithes d.…

A: Dinosaurs that have feathers on their body are known as feathered dinosaurs. This species of…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.