What are the characteristics of a female mud crab ( Scylla serrate) on its carapace?

Q: Which of the following organisms is most closely related to the salamander? O A) Leopard O B) Tuna O…

A: Cladistics The taxonomic analysis and construction of phylogenetic trees are based on a methodology…

Q: Discuss the role of the cuticle in the earthworm

A: Earthworm :- It is a terrestrial invertebrate that belongs to the phylum Annelida.  Cuticle :- It is…

Q: which other invertebrate groups are likely to be the closest relatives of mollusks? provide…

A: INTRODUCTION Mollusca Second largest phylum of invertribrates after arthropodes.

Q: give the function of these shark parts. 1. pectoral fin 2. pelvic fin 3. anal fin 4.…

A: Sharks are excellent swimmers, with streamlined bodies and specialized fins that allow them to move…

Q: In a sentence, briefly describe a feature of australopithecine leg or foot bone structure (such as…

A: The Pleistocene history of men is primarily a story of progressive enlargement of brain, increase in…

Q: 1) What do you notice about the texture of its skin? 2) Why would this be advantageous?

A: The spiny dogfish, spurdog, mud shark or piked dogfish, is a species of the Squalidae family of…

Q: Give the digrammatic representation showing Reptilian claw?

A: The air-breathing vertebrate organisms are covered by a special skin of bony plates, scales, or a…

Q: How are insects distinguished from other hexapods?

A: Arthropods are the invertebrates that form one of the largest groups of phylum in the animal…

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: Earthworm Compare the posterior segments to the anterior segments in a earthworm internal features

A: An earthworm is a terrestrial invertebrate belonging to the phylum Annelida. They exhibit a…

Q: Match the common name of the animal with its most correct taxon by pulling down to the correct…

A: Coordinating the common names of a few animals—specifically, a toad, a caecilian, and a…

Q: Give the differences between lancelet and lamprey with regard to the external characters?

A: Lancelets belong to a class of Cephalochordata, primitive chordates. They are small animals usually…

Q: What is the only difference between a fish and tetrapod

A: The change in the heritable characteristics of the species across many generations is called…

Q: What is one anatomical trait that is present in both Adapoids and Omomyoids?   A. A bony ear tube…

A: Adapoids are relatives of current day lemurs, lorises and bushbabies. They lived during the Eocene…

Q: Which of the following statements is false? Larval Elopomorphs disperse via ocean currents Several…

A: Lepisosteiformes is an order of ray-finned fish commonly known as gars. Gars are freshwater fish…

Q: Explain what distinguishes hominoids from other primates. Choose two hominoids and explain how their…

A: Humans and their closest cousins, such as chimpanzees, bonobos, gorillas, and orangutans, are…

Q: Why are robber crabs land invertebrates?

A: Robber crab which is also known as coconut crab, scientific name Birgus latro , it is a species of…

Q: Mention the function of the concha in the lizard's nasal chamber?

A: Lizard is a reptile that belongs to the Squamata order. There are nearly 6000 species of lizards…

Q: Larval development is common among marine crustaceans but very rare among freshwater ones. Can you…

A: The first step in hypothesizing why larval development is common among marine crustaceans but rare…

Q: Chordates are grouped with starfish because both are protostomes, true or false?

A: The Correct answer would be False because starfish is neither chordate nor a protostome, it is…

Q: Give the difference between frog and shark regarding the external characters?

A: The animals that bear notochord in any stage of their lifetime belong to chordates. Both frog and…

Q: What is thought to be the function of the shell morphology in African pancake tortoise?

A: Introduction African pancake tortoises:- are native to East Africa and are found in Tanzania,…

Q: In planarians ampulation : What body parts are required for feeding? Do all of the planarians eat…

A: Planaria  They are free living flat worm belonging to the phylum Platyhelminhs. They have high…

Q: The scientific name for the African rock python is Python sebae. Which name indicates its genus?

A: A name given to a creature by researchers, notably the scientific name, which includes the genus and…

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.