There is current controversy about which group is sister to the rest of the animals. Which two of the following groups are the potential sister groups to all the other animals?   a. Ctenophores   b. Cnidarians   c. Porifera   d. Both a. and b.    e. Both a. and c.

Q: The phylogenetic tree of animals shows thata. rotifers are closely related to flatworms.b. both…

A: A phylogenetic tree is a diagram that tells about the evolutionary relationships among different…

Q: Difference in the beaks of finches found in Galapagos Island compared to those that are found in…

A: Darwin observed the Galapagos finches that had a graded series of beak sizes and shapes and…

Q: Which of the following is NOT true about the Charophycean green algae? a. They generally have…

A: Anatomy, which reveals that evolutionary ties may be proven through homologous structures, and…

Q: Which of the following is not an arthropod?a. arachnidsb. crustaceansc. rotifersd. insectse. All of…

A: Out of arachnids , crustaceans , rotifers and insects only Rotifers are there which is not an…

Q: Which of the following is a derived trait of vertebrates? A. Dorsal hollow nerve cord B. A…

A: Derived traits also known as derived characters or apomorphies are characteristics that have evolved…

Q: According to "Life and Death 3MYA", what was childbirth like for Lucy and her species?

A: Australopithecus afarensis, such as the famous fossil "Lucy," lived around 3 million years ago.We…

Q: According to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, where are the…

A: The question is asking for the geographical locations where Denisovans, an extinct species of…

Q: Lucy is a member of what species?a. Homo erectusb. Australopithecus afarensisc. H. habilisd.…

A: A  female hominin called Australopithecines ararensis, universally known as Lucy.Brain size- 400cm…

Q: 6 of 7 B. The ancestors of whales once had femurs and pelvises C. Whales will be able to walk on…

A: Evolution is the gradual change in the inherited traits of biological populations over many…

Q: What is the most probable primitive condition for the whole group (node A)? O a. Claws O b. Nails O…

A: A cladogram is a cladistics diagram that depicts relationships between species. A cladogram, on the…

Q: What type of data is primarily used to determine the existence and appearance of early animal…

A: Animals are multicellular eukaryotic organisms. They possess a well-defined growth pattern that…

Q: organism that primarily undergoes extensive and rapid growth

A: The fertilization in humans takes place in the Fallopian tubes of the female reproductive system.…

Q: In the Paleozoic era, the first vertebrates to live on land were thea. amphibians.b. reptiles.c.…

A: The Paleozoic era is the earliest of three major geologic eras found in geologic periods which…

Q: Two different plants, cactus from the desert southwest USA and a euphorb from South Africa, have…

A: Given information: Two different plants, cactus from the desert southwest USA and a euphorb from…

Q: The Brachyury and Tbx5 in vertebrates and the Ap3 gene in flowering plants a. are examples of Hox…

A: It is expressed in the developing notochord and the Brachyury gene of ascidians encodes a…

Q: Fossilsa. are the remains and traces of past life.b. can be dated absolutely according to their…

A: Answer is a.) are the remains and traces of past life.

Q: Sponge archeocytes can differentiate into A. eggs (oocytes) B. sperm C. choanocytes…

A: Sponges are organised at a cellular level. They don't have any features that may be classified as…

Q: Sieve tubes and sieve elements are a. homoplastic because they have different function. b.…

A: Pholem is a permanent vascular tissue system associated with the conduction/transport of food…

Q: 1. What are architarchs? These are A. fossils that resemble the ruptured coats of cyanobacteria. B.…

A: Architarchs: a. It is the remnants left by the eukaryotic organisms which are ten times smaller. b.…

Q: 1. The first terrestrial vertebrates to evolve, with lungs, tetrapod limbs, and a three-chambered…

A: The geological time scale is divided into different era, periods and ephos. The evolution of…

Q: In terms of numbers of species, the most successful phylum on the planet is the a. Mollusca. b.…

A: All classes of organisms with the same body structures are grouped under phylum. The animal kingdom…

Q: The organism Euprymna scolopes is most likely related to- B. Tasmanica euprymna. A. Nipponensis…

A: Introduction Euprymna is a bobtail squid genus that includes several species.

Q: Differenciate the difference between taxonomy and systematics and give a brief examplanation about…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Primates have prehensile hands (and sometimes they have prehensile feet). What does this mean? OA.…

A: Primates  are the animals or mammals that include the lemurs, lorises, monkeys, apes and humans.…

Q: As with the emergence of the Acoelomorpha phylum, it is common for ____ data to misplace animals in…

A: The kingdom Animalia comprises a great diversity of organisms. Acoelomorpha is a Subphylum of…

Q: 3. Which of the following chordates are believed to have been the most recent vertebrate group to…

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: Which

A: The slime mould and multicellular algae are included in kingdom protista because :  a)They lack…

Q: Which is true about Archaeopteryx (select the best possible answer)? A. it was a dinousaur  b. It…

A: Introduction  Evolution is the shift in the genetic makeup of biological populations over numerous…

Q: 36. Which of the following relies on the study of embryos as evidence of evolution? A. Comparative…

A: Which of the following relies on the studies of embryo as evidence of evolution?

Q: A. The evolutionary history of a species is its ____, but ____ is the science that groups and names…

A: Introduction Taxonomy is a stream of biological sciences, It refers to the science of naming,…

Q: 31. One of the reasons that primates have been so evolutionaritly successful for the past 55 million…

A: The primate is a group (class) of mammals under sbuphylum vertebrata includes lemurs, lorises,…

Q: Order Primata comprising monkey,gorilla and gibbon is placed in classMammalia along with order…

A: Primates are the order which comes under the class Mammalia. Primates are mammals that lead to an…

Q: 16. What is a rhinarium? O A. A soft pad of nerves in the ends of primates' digits that Improves the…

A: Rhinarium can be described as the hairless skin part that surrounds the nostrils in many of the…

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 is not always true of a valid binomial species name like Homo sapiens? A. It includes the genus…

A: The naming of microorganisms according to defined standards and criteria is known as nomenclature.

Q: 20. The largest terrestrial vertebrates to evolve, with an amniotic egg, and scales but no feathers…

A: Reptiles are considered as the first animal on land with the ability to live and multiply on land…

Q: Chimpanzees and humans appear very much alike because of? *

A: Which describes the modern classification system? a. based on evolutionary relationships The modern…

Q: Ornithopods and ceratopsians are characterized by numerous instances of convergence. Which of the…

A: Ornithopods are small, bipedal, running dinosaurs that are herbivorous animals. These dinosaurs have…

Q: a. What is this diagram an example of? b. Which two organisms are most closely related? c. What…

A: If two species share a recent common ancestor, they are more related, and if they share a distant…

Q: Q1: Variable descriptions of a character is called a _____________.  A. Homologous character B.…

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

Q: Based on the activity what is the basis for saying that a certain organisms is less or more similar…

A: Molecular data is universal as it is found in all organisms and can provide a great deal of…

Q: Which of the following is correct regarding the reptilian and mammalian vertebra? A. Their cervical…

A: Mammals: Mammary glands, which produce milk for nourishing (nursing) their young in females, a…

Q: Which of the following is most likely to be true of two modern organisms that have a distant…

A: Evolutionary relationships are the association between two organisms on the basis of their ancestral…

Q: This video refers to Denisovans as a “Ghost Lineage.” In fact, Denisovans don’t even have a formal…

A: A type specimen is a single physical specimen that is designated as the representative of a…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.