Why was the evolution of the pulmonary veins important for amphibians? a. To move oxygen to and from the lungs b. To increase the metabolic rate c. For increased blood circulation to the brain d. None of the choices are correct.

Q: To what order do primitive mammals that lay eggs belong? A. Marsupials B. Craniata

A: The process through which an organism produces more of its own offspring is known as reproduction.…

Q: Which is part of a group of predatory insects? A. Isoptera B. Odonata C. Orthoptera D. Blattaria

A: Insects are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group…

Q: Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have…

A: Answer is b.)  lay eggs that are enclosed in shells.

Q: a) Horseshoe crabs use to carry oxygen through their blood. b) Why the blood of horseshoe crab is…

A: 1) Hemocyanin  2) The blood is blue because it contains a copper based respiratory pigment called…

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: 13 - Chambered heart occurs in:   A) Leech B) Earthworm C) Snail D) Cockroach

A: The heart performs the function of pumping blood to the different parts of the body. Different…

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: Why do whales possess a femur and a pelvis? A. They descended from organisms that walked on land. B.…

A: Introduction:- There are some parts of the body that no longer serve a role, yet did in our…

Q: describe the key adaptation that were associated with the transition from aquatic life to…

A: Adaptation is mechanism by which organism adjust themselves according to the need of environment…

Q: Which statement best describes how an earthworm moves? a Contracting setae while relaxing…

A: Earthworm mobilization:                         Circular and longitudinal muscles with bristles like…

Q: Camels are found in desert where as lions are found in jungle.by which phenomenon they survive in…

A: Habitat refers to the environment in which creatures live. A residential place is referred to as a…

Q: Which features characteristic of humans are unlikely to fossilize? a. the bones and dung b. the jaws…

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

Q: Dinosaurs represent one of the oldest groups of animals

A: In this question, we have to explain the dinosaurs belongs one of the oldest group of animals.

Q: Which is predatory, uses fours leg, and the males have wings? A. Embiidina B. Dermaptera C.…

A: Insect with four legs and male bearing wings :-

Q: Which statement is not true? A. Snails have radula B. Chitons are annelids C. Terrestrial slugs…

A: Marine biology is the systematic discipline of aquatic life, or species that live in the water.…

Q: Cutaneous respiration occurs in: A) Cockroach B) Salamander C) Crab D) Parrot

A: Answer is B.) Salamander.

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: Elaborate three bones that allow the frog to live on land

A: Frog, any of different tailless creatures of land and water having a place with the request Anura.…

Q: In the evolution of circulatory systems, how is a two-circuit circulatory system (such as that found…

A: Closed circulatory system is a type of circulatory system in which blood flows inside the blood…

Q: Fossils reveal that __ are the fish organisms with bony skeletons

A: Scientists group fish into three main types. They are divided into these groups because of the…

Q: When does differentiation begin? A. when the zygote forms B. when the zygote begins to divide C.…

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: Amphibians were the first _________, four-footed terrestrial vertebrates.

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: Which group of hadrosaurs had crests?

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

Q: Lobe-finned fishes are important because theya. were the first vertebrates.b. were the earliest…

A: Lobe-finned fishes are coelacanths and lungfish have paired fins that comprise an extended fleshy…

Q: Which period is known as “Age of amphibians”?

A: Amphibians are the first animal to attempt transition from aquatic to Terrestrial life. From…

Q: Infer and explain how the rate at which gas exchange (between oxygen and carbon dioxide) occurs for…

A: The human respiratory system originates at the nose and continues through the airways and lungs. The…

Q: Write a short essay proving that vertebrates evolved from a common ancestor.

A: There are many different fields of biology that prove that vertebrates have a common ancestor from…

Q: Describe when did the different species of Homo appear? Differentiate and elaborate on how their…

A: Homo habilis appeared 2.4 to 1.8 million years ago. They were capable of using simple stone tools…

Q: Read the list of vestigial structures found in humans. Then hypothesize a possible function for each…

A: A rudimentary structure in humans that have no apparent function and appear to be residual parts…

Q: Explain why it is necessary to know the life history of a tunicate to understand why tunicates are…

A: Tunicates are members of the subphylum Urochordata and phylum Chordata. They are small marine…

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: What can you infer about bats compared to other mammals? What do you conclude about the effect of…

A: Hibernation is an adaptation by organisms which helps in conservation of energy by remaining…

Q: Can you answer all the parts to this question regarding sharks  A: The reproductive organs on a…

A: Claspers are the reproductive organ or external genitalia in male sharks, these clasper are…

Q: Explain why forams have such a well-preserved fossilrecord.

A: The remains, traces, or impressions of ancient life are called fossils. Their study is known as…

Q: List down the traits shared between the bird and its closest relative? a b c d e

A: A few life forms might be firmly related, despite the fact that a minor hereditary change made a…

Q: Use the dichotomous key to answer question 22. 1A Go to 2 All wings are thin, delicate, and…

A: A dichotomous key is an important scientific tool, used to identify different organisms, based the…

Q: explain why there are more similarities between humans and chimpanees than between human and dogs.

A: Monkeys, chimpanzees, and humans are primate groups. Primates are vertebrates that are portrayed by…

Q: explain why birds have different lengths and shapes of beaks

A: Diverse bird species have distinctively molded beaks on the grounds that every species has advanced…

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: 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…

Q: Enlist the example of the effect of vertebrate animal have on human.

A: Introduction: Vertebrates include mammals, birds, tortoises, amphibians, as well as fish, and the…

Q: What is a metaphor for bearded dragon

A: Step 1 :- Metaphor for  Bearded dragon ( Pogona)  is described as a behavioral aspect during which…

Q: why are the lungs of amphibians not as efficient as human lungs

A: The majority of amphibians breathe through their skin and lungs. They need their skin to stay wet in…

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.