In the animal kingdom today, poikilotherms outnumberhomeotherms by a great margin. Why is poikilothermy asuccessful way of life even though poikilotherms sometimesmust compete successfully with homeotherms to survive?

Q: Amniotic eggs are a trait of what group(s) of animals? Choose All That Apply O amphibians reptiles…

A: Eggs that contain an amnion are alluded to as amniotic eggs. The amnion is a bunch of liquid-filled…

Q: Is a cat vertebrate or invertebrate

A: Cats are domestic animals. They are small carnivorous mammal.

Q: Animal having a coelom gives the advantage of: O a. It allows more efficient sense organs. O b. It…

A: A fluid-filled hollow cavity present in many living organisms is called coelom. It functions as a…

Q: (a) State two advantages of cephalisation (b) Outline the advancement features of reptiles that…

A: Cephalization is the differentiation of the anterior end of an organism into a definite head. This…

Q: Why do sponges have to eat things that are only 1 cell large? because their mouth is so small that's…

A: Sponges belong to the phylum Porifera. They are heterotrophic, multicellular eukaryotic organisms.…

Q: What is the differencebetween octopuses andmussels regarding theircirculatory systems? Howdoes that…

A: Octopoda is part of the Cephalopoda class which means that pulp is cephalopod.  Cephalopoda is a…

Q: Describe the major vertebrate adaptations that arose in fishes andwere adaptive on land.

A: Vertebrates are the next subcategory of chordates. These organisms are characterized by the presence…

Q: A coelom (Gr. koilos, cavity) is a body cavity completely surrounded by mesoderm; the band of…

A: Deutrosomes in the greek mean second mouth. It makes a nephrozoa clade with protostomia clade. They…

Q: Dinosaurs like edmontosaur how do they defend themselves from predators like trex? Trex has most…

A: Paleontology is the study about fossils and it grouped the living things present at that time and…

Q: What feature separates the Chondrichthyans (sharks and rays) from the lobed-finned fishes? O some…

A: The class Chondrichthyes has two subclasses: the subclass Elasmobranchii (sharks, beams, skates, and…

Q: In which of the three major mollusk groups is each of thefollowing characteristics found?a. two…

A: Step 1 Hello. Since you have posted a question with multiple sub-parts, we will solve the first…

Q: Amphibians evolved from what type of ancestral fish?a. sea squirts and lancelets                  d.…

A: Amphibians can be defined as the ectothermic, tetrapod vertebrates belongs to the class Amphibia.…

Q: Which characteristic(s) account(s) for the success ofarthropods?a. jointed exoskeletonb.…

A: Answer is e.)  all of these are correct.

Q: Which anatomical and physiological characteristics are commonly found in terrestrial, but not…

A: When anuran's enter from aquatic environment to terrestrial environment several physiological and…

Q: Mouth This animal could be described as . Select all that apply. O a Cnidarian | having no symmetry…

A: Hi dear, here's your answer what you want.can you please give me a like for this answer. This animal…

Q: What feature unifies all the classes of annelids Select one: Oa Parapodia Ob. Choanocytes Oc.…

A: The phylum Annelida consists of mainly segmented worms. They have a true coelom, are bilaterally…

Q: Many species of animals make alarm calls, whichwarn others in their group that a predator…

A: The Theory of Natural Selection was given by Darwin. He proposed that the best-fit organisms that…

Q: Which characteristic(s) account(s) for the success of arthropods?a. jointed appendagesb. an…

A: R.H. Whitaker’s classification system divided the organisms into five major categories. Kingdom…

Q: A rise in atmospheric carbon dioxide increases ocean acidity, making it harder for animals to build…

A: Many marine invertebrates depend on equilibrated chemical conditions and pH levels in the ocean to…

Q: id the transition of vertebrates from water to land happen quickly? Explain

A: The ecological eras are studied concerning evolutionary time. The time taken for the evolution shows…

Q: Amphibians evolved from which type of ancestral fish?a. sea squirts and lanceletsb. ray-finned…

A: Amphibians evolved from lobe finned fishes as ancestral fish.

Q: These macaques (Macaca fuscata) are partially immersed in ahot spring in a snowy region of Japan.…

A: Homeostasis is the ability of an organism to maintain a relative constant internal body environment.…

Q: To survive as predators, fish had to adapt to which of the following two challenges? Filtering…

A: Early in the evolutionary history of fish, a major challenge was avoiding predators. Although some…

Q: Some amphibians never leave the water, whereasothers can survive in relatively dry terrestrial…

A: Amphibians are living organisms that can survive both in water and on land. The common examples are…

Q: Compared to amphibianswhat is an example ofevolutionary novelty presentin beings of the class…

A: Amphibians are the organisms that live on both land and water. The adult amphibians use both lungs…

Q: Some species of animals gain physiological advantages byexploiting the specialized physiological…

A: Mammals are usually defined in the way that they are a group that includes humans—are warm-blooded…

Q: In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs…

A: Amniotes are described as the vertebrates that have a tendnecy to develop embryo in the amnion.…

Q: ______ is the branch of zoologyconcerned with the study of amphibians.A. HerpetologyB. EthologyC.…

A: The zoology is the branch of biology that deals with the study of animals. It includes the…

Q: Which is not a feature of the Arthropoda? O most diverse lineage on the planet O compound eyes but…

A: An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and paired jointed…

Q: @ why do mammals have different Kinds of teath coniverepties only have one kind?

A: Mammals either posses Heterodont (teeth differ from the front to back), Thecodont (teeth are set in…

Q: ater and begai ng the land, there were plenty of advantages in doing so:. reduced competition,…

A: When the earth was going through a cooling process, the aquatic animals were only lived. But, after…

Q: clade Pancreistacens includes crustaceans and erapode,hich of the followlistrats are choracertbhe f…

A: Crustaceans: Sub phylum of arthropoda Body has three segments: head, thorax and abdomen Body…

Q: •Was your reptile found ina neritic or oceanic zone? • Do reptiles use a beak, teeth, or baleen for…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Mammals have brains that are more complex than those offish and amphibians, particularly in terms of…

A: The brain is the mass of nerve tissue at the front end of an organism. The brain integrates sensory…

Q: All the following are general anatomical similarities for MOST primates, EXCEPT: Opposable thumbs…

A: The answer is option 1. opposable thumbs.

Q: . How might we and other species be affected if mostor all amphibians (Core Case Study) were to…

A: Amphibians are included under the category of invertebrates. Amphibians can live on land as well as…

Q: Lateral undulation is a type of locomotion used by many basal Chordates, but it is used by derived…

A: Option 1 is correct because all living crocodilians are aquatic and they swim with lateral…

Q: Find the hash mark indicating the origin of jaws. Which groups of vertebratespossess jaws? Which…

A: Evolution is the process of the accumulation of genetic variations.

Q: Tor animals that moved on to land? elect one: a. Lateral lines became useless, eggs required water…

A: Aquatic animals have their own characteristics to survive in water like having gills to respire,…

Q: TRUE or FALSE: Apes belong to the superfamily hominoidea, the infraorder anthropoidea, and the…

A: False.

Q: Which animal phyla have a complete digestive system? (a mouth and an anus) Annelida (segmented…

A: A complete digestive system consists of a digestive tract with two openings. One opening is the…

Q: Most of Earth's animals are: vertebrates invertebrates

A: Vertebrates are the animals that have vertebral column or backbone. invertebrates are the animals…

Q: WRITE ABOUT A THEME: ORGANIZATION Early tetrapodshad a sprawling gait (like that of a lizard): As…

A: Breathing provides oxygen and nutrients to all the tissues and organs. For the continuity of…

Q: Tunicates have pharyngeal slits for: a. Filter feeding. Ob. Catching its prey (as a predator). С.…

A: Tunicates, moreover called urochordates, are an amazingly assorted subphylum of the Chordata, a…

Q: Crocodylians such as crocodiles, have essentially remained unchanged fo hundreds of millions of…

A: Natural selection: The mechanism by which populations of living organisms adapt and evolve is known…

Q: Why do small animals more swiftly rather than big animals?

A: Small animals have many advantages over big animals. They also require less space and food to…

Q: Besides vertebrates twoinvertebrate phyla containspecies that make pulmonaryrespiration. Which are…

A: Introduction  When there is exchange of oxygen from air to the cells through lung type of organ,…

Q: Homo Habilis had relatively short legs. This suggests that it retained a primitive form of…

A: Fact Homo habilis, or "handy man," was one of the earliest known humans, living between 2.4 million…

Animal Diversity

Nematodes are commonly known as roundworms. They are free-living, very tiny organisms. They have an elongated and tubular body. These organisms have a nervous system and are mostly act as parasites to both animals and plants.

Platyhelminthes

Platyhelminthes are also known as "flatworms" because as they are dorsoventrally flattened from head to tail. They are invertebrate, soft-bodied, acoelomate, unsegmented and have bilateral symmetry.