Match the organisms with the appropriate description. ___ lancelets          a. pouched mammals ___ lampreys         b. most diverse mammal ___ amphibians           lineage ___ lizards              c. feathered amniotes ___ birds                d. egg-laying mammals ___ sharks               e. extinct jawed fishes ___ monotremes     f. ectothermic amniotes ___ marsupials         g. cartilaginous fishes ___ placoderms       h. first land tetrapods ___ placental            i. living jawless fishes ___ mammals            j. invertebrate chordates

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: A barnacle is a shelled______ . a. arthropod c. cephalopod b. gastropod d. crustacean

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

Q: Fossil evidence that many saurapod dinosaurs had feathers suggests that ____. flight is an…

A: In the course of evolution Dinosaurs are the important part. So according to the fossils the size of…

Q: 1. Hemipteran's piercing and sucking mouthpart is a modified structure of mandibles and maxillae.…

A: 1. Hemipterans possess piercing-sucking mouthparts. Mouth part in form of segmented beak arising…

Q: The hormone controlling metamorphosis in tadpoles is Group of answer choices A. thyroxin B.…

A: Some organism changes their young body to become adults such as in the case of insects while others…

Q: a. List the characteristics of chordates. What were the circumstances that forced them to evolve…

A: Answer :: a) Chordate is a phylum in animal kingdom which includes Urochordata, Cephalochordata and…

Q: Feeding rosettes can be observed on the surface of the sediment and are formed by Group of answer…

A: It is a multiple choice question.

Q: Earthworms have a(n) ____. Choose one: A.segmental skeleton B.endoskeleton C.exoskeleton…

A: Earthworm belongs to phylum Annelida of kingdom Animalia.They are triploblastic(have three germ…

Q: What internal structure does this animal use to bring in oxygen and release carbon dioxide? O A.…

A: Dolphins are mammals. They have three ear bones, and they have hair at some point during their life…

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: Animals that have an anterior and posterior end are said to be_______ . The anterior end of such…

A: Animals that have an anterior and posterior end are said to  be cephalized.  The anterior end of…

Q: Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d.…

A: A major group of marine animals are echinoderms. They are known for their spine like skin. These…

Q: reptiles are more successful than amphibians on land.  b. Explain how sharks

A: Since you have asked multiple questions , we will solve the first question for you. If you want any…

Q: The circulatory fluid in echinoderms is _____. a. blood b. mesohyl c. water d. saline

A: The phyla Echinodermata is known for their spiny skin and include sea urchins, sea stars, sand…

Q: Vertebrates Vertebrates Cartilaginous fish Scales and amniotic egg Land and water Bony fish ఈఅం Ray…

A:

Q: A_______ can reassemble if broken into individual cells. a. sea anemone c. sea star b. roundworm d.…

A: Sea anemone: The sea anemone is a sessile, soft bodied, primarily sedentary marine predator of the…

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: Gills are found in a. fish. b. amphibians. c. aquatic invertebrates. d. All of the choices…

A: Gills are respiratory structures with a high surface area that allow the aquatic organisms to…

Q: Poison glands of snakes are homologous to: A. electric organs of fishes B. stings of rays…

A: Among the given options, option (d)is the most appropriate. Poison glands are generally associated…

Q: Clams are a type of... Group of answer choices echinoderm cephalopod arthropod gastropod bivalve

A:

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: Animals like annelids and arthropodsetc where the body can be divided intoidentical left and right…

A: Animals are multicellular eukaryotic organisms. It forms the biological kingdom Animalia.…

Q: A group of young scientists visited a Nursery to study the level of sanit ion and the conformity to…

A: Escherichia coli is a gram-negative, rod-shaped bacteria commonly found in the gut, raw cow milk,…

Q: The ____and_____ are grouped as Ecdysozoabecause they both molt.a. cnidarians/arthropods c.…

A: As they mature, all members of Ecdysozoa superphylum molt or lose their cuticle. They secrete a…

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: Annelids and_______ have a closed circulatory system. a. insects c. flatworms b. cephalopods d. sea…

A: Introduction :- The heart pumps blood into the vessels so that it can reach the tissues and organs…

Q: Earthworms are most closely related to________ . a. tapeworms c. planarians b. roundworms d. leeches

A:

Q: The symmetry found in animals that move swiftly is ________. a. radial b. bilateral c. sequential d.…

A: The symmetry refers to the repetition of the body-parts in all living organisms. The four types of…

Q: Which of the following prevent large particles form entering the pharynx of ascidians? a. buccal…

A: Ascidiacea, also known as ascidians, tunicates, and sea squirts, is a polyphyletic class of sac-like…

Q: 2. Amphioxus serves as a moderm, living analog for the extinct cephalochordate Choose a or b a.…

A: Fishes were evolved at the time of Cambrian explosion. Chordates gradually developed skull and…

Q: Both cartilaginous and bony fishes have______ . a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The term vertebrate is derived from the word vertebrae, which refers to the bones that make up the…

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: Match the organism to their body symmetry * sponges A. asymmetrical + earthworm B. bilateral *…

A: Body symmetry means that in how many equal parts an organism can be divided. If an organism is…

Q: The tarsier belongs in the suborder ____ because it shares characteristics with both prosimians and…

A: Introduction  The animal group known as primates is diverse. Lemurs, galagos, and lorisids are…

Q: Match each structure of a mollusk with its function.

A: The objective of the question is to match each structure of a mollusk with its corresponding…

Q: Which of the following conclusions is supported by the diagram and the data table?  Number of cell…

A: The animal kingdom is the largest kingdom amongst the five kingdoms consisting of all animals.…

Q: Animals with calcium-based shells are found in the phylum... Group of answer choices Nematoda…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

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

A:

Q: An example of peramorphosis would be a____.   salamander that becomes sexually mature while still…

A: Peramorphosis is a process in developmental biology, where the growth/maturation of an animal is…

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.