You are confronted with two creatures that, on first glance, both appear to be pill bugs. Upon closer examination, however, you note a difference that allows you to identify one specimen as a pill bug (an isopod crustacean) and the other as a pill millipede (a myriapod). That key characteristic is... A. The presence of an exoskeleton B. The presence of mandibles C. The presence of antennae D. The presence of branched appendages E. None of the characteristics listed above would allow an isopod crustacean to be distinguished from a myriapod

Q: What is one trait related to locomotion that Au. sediba shares with modern humans?   A. Angled…

A: A trait is considered a specific feature or characteristic of an organism. Traits are significantly…

Q: A zoologist is investigating an unidentified marine animal specimen. They note that this creature…

A: These properties of the symmetry of the found specimen are: Radial Symmetry along the short axis…

Q: Examine the limb bones of these two primates. For each one, what was the most likely broad locomotor…

A: Primates are well known as by the presence of grasping hands along with the primitive anatomy with…

Q: According to "Our Earliest Ancestors", what is the main physical feature on Sahelanthropus…

A: The question is asking for the main physical feature on Sahelanthropus tchadensis, an early human…

Q: According to "Our Earliest Ancestors", what is the main physical feature on Sahelanthropus…

A: The question is asking for the main physical feature on Sahelanthropus tchadensis, an early human…

Q: Suppose you find an animal that has a lateral line and a skeleton made out of cartilage. What class…

A: Every animal phylum poses some unique characteristics that are used for the identification of that…

Q: What skeletal trait of P. cookie is different from modern primates?   A. P. cookie has no…

A: P. Cookie is an extinct primates and is similar to lemur.

Q: A. Which type of Armadillo belongs to the same phylum as Tityus? Give both the scientific name and…

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

Q: Which species has the most robust cheek bones?   A. Homo erectus   B. Homo rudolfensis   C.…

A: Robust cheekbones refer to strong, prominent, and thick cheekbones. These are typically…

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: An unidentified animal is noted to have simple tissues and possesses specialized cells called…

A: Nematocyst  are minute, elongated, or spherical capsule produced exclusively by members of the…

Q: You read a research article presentsing new phylogenetic data demonstrating that species that…

A: Answer- Correct option is (A) Evolution of the pseudocoelom occurred more than once.

Q: Which species has the most robust cheek bones? A. Homo rudolfensis B. Homo habilis C.…

A: The mid-face region typically appears more angular or defined with strong cheekbones.Strong…

Q: What is one anatomical difference between Australopithecines and other early hominins, such as Ardi?…

A: The answer is: B. Ardi had a divergent big toe while the Australopithecines had non-divergent big…

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: What are two anatomical traits that are different between Adapoids and Omomyoids?   A. An ear…

A: Two anatomical traits that are different between Adapoids and Omomyoids, which are early primate…

Q: What do the marks found on the Bodo cranium indicate? A. The removal of flesh from the skull by…

A: Bodo cranium is the fossil of the skull of extinct hominin species. The skull is nearly 600,000…

Q: Members of which of the following classes are examples of vertebrate animals that are not amniotes?…

A: Vertebrate animals can be grouped into two categories based on the presence or absence of certain…

Q: ou find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…

A: While the cleavage pattern has remained remarkably consistent among taxa, it has undergone numerous…

Q: 30. Class Aves evolved from Jurassic dinosaurs belonging to which of the following chordate groups?…

A: The birds or the aves were cosidered to be evolved fromthe jurassic dinosaurs of clade Therapoda.…

Q: According to "Our Earliest Ancestors", what is unique about the specimen Ardi?    A.She had a long,…

A: The question is asking about the unique characteristics of the specimen Ardi, according to the text…

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: Match these with the number on the picutres   A. stomach B. telson C.…

A: Crayfish is a freshwater crustacean. It also called crawdads, mountain lobster, freshwater lobster,…

Q: [ Select ] lived at the same time as A. boisei, but had a significantly larger brain.

A: Both australopithecus robustus and Australopithecus Boisei are hominin species that belong to same…

Q: According to "Our Earliest Ancestors", what is unique about the specimen Ardi?    A.Her skeleton was…

A: The question is asking about the unique characteristics of the specimen Ardi, according to the text…

Q: What is unique about the specimen Ardi?    A. Her skeleton was the largest ever found and she…

A: The question is asking about the unique characteristics of the specimen Ardi, a fossilized skeletal…

Q: An odocast was found to belong to Select on Ardinithen

A: Predating Australopithecus afarensis by approximately one million years, Ardipithecus ramidus lived…

Q: Question 4 1 pts Which of the following is true of asteroids? (Hint: Recall the video of an starfish…

A: Eversible stomach.

Q: Which of the following is NOT a characteristic of annelids?   A.they have a closed circulatory…

A: THE animals that belong to phylum annelida are called anellids  or called segmented worms . , they…

Q: You are confronted with two worms that, on first glance, appear to be very similar. Upon closer…

A: Introduction :- An earthworm is a type of worm that belongs to the phylum Annelida. They are…

Q: Which statement comparing these organisms is correct?

A: Answer: SKELETON = It is the framework which supports the posture of an individual, it is made up of…

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: _______function(s) in the movement of cnidarians. a. A hydrostatic skeleton c. Cnidocytes b. Tube…

A: Phylum cnidarian is coelenterates that lack the body coelom (acoelomate). They are marine animals…

Q: Why was it significant that the bones were found to be articulated (their bones hadn’t separated…

A: The significance of finding articulated bones (bones that haven't separated from each other) lies in…

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,…

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.