Question 20 In which of the following pairs of organisms does holoblastic cleavage typically occur? sea urchins and humans sea urchins and birds birds and fish O humans and fish

Q: Sawfly larvae differ from Lepidoptera caterpillars | by having more prolegs. | by having…

A: Sawfly larvae ( belonging to order Hymenoptera) are immature stages of wasps or bees that have…

Q: Wouldn't the presence of myomeres in vertebrates be neither symplesiomorphic no synapomorphic when…

A: Synapomorphy is an evolutionary relationship in which a trait is shared by 2 or more taxa and their…

Q: What is a vestigial structure? What are some examples of vestigialstructures in humans and other…

A: Vestigiality is the retention during the process of evolution of genetically determined structures…

Q: Bone is   Question 9 options:   a dead tissue   formed by fibroblasts   the predominant skeleton…

A: Introduction :  Connective tissue is the tissue that connects, separates and supports all other…

Q: QUESTION 1 Which of the following is not a vertebrate orexic agent? • Agouti-related peptide •…

A: QUESTION 1: The correct answer is Anandamide. Anandamide is a neurotransmitter that acts as an…

Q: modern organism is most closely related, evolutionarily, to the Megalodon.

A: Megalodon is no longer living; it died out about 3.5 million years ago. Megalodon (Carcharocles…

Q: 1. In terms of the differences between the opossum, bird, bat, and mole skeletons which you…

A: Since you have asked the solution to question 1. We will solve that for you. Introduction In…

Q: How can biologists explain similar gill pouches in embryos of a chick, human, and cat? O genetic…

A: Gill pouches are also known as Gill pockets.They are paired protrusion present in pharyngeal wall.In…

Q: Why can the allantois beconsidered an adaptation toterrestrial life?

A: Allantois is an extra-embryonic membrane that develops between the other two extra embryonic…

Q: Which of these terms best identifies the structures in the diagram below? VERTEBRATE FORELIMBS human…

A: Evolution is the process of slow and gradual change over a period of time. Many different scientists…

Q: Which of the following mammalian structures is derived from one of the extra embryonic membranes?…

A: Introduction An extraembryonic membrane is one of the membranes that aid in embryo development. Such…

Q: Which type of cleavage leads to the development of a bird?

A:

Q: The reproductive strategy of giving birth to premature young, which have to crawl into the mother’s…

A: The question is asking about the first group of mammals that developed the reproductive strategy of…

Q: An example of a vestigial structure in humans is the tailbone. the ability to produce adrenaline.…

A: Vestigial organs or structures are those structures that have no function in the body of an…

Q: Please make a chart like that and answer all the question this is Anthro work

A: I followed the format of the chart that you mentioned in your instructions. After filling it out, I…

Q: Is a cartilaginous skeleton a homolgy between early gnathostomes and cyclostomes due to their shared…

A: Gnathostomata is a class of jawed vertebrates and consists of around 60000 species of vertebrates.…

Q: The fossil cephalopod has a calcareous shell and a squid-like body that would extend out of the…

A: Anatomy is the branch of biology that deals with the study of the structure of organisms and their…

Q: Why is the evolution of the amniotic egg significant? Embryos are protected from predators.…

A: An amniotic egg is an egg which is terrestrially adapted egg and encased by a shell and…

Q: We discussed the four primary.components of animals' body plans. Describe an echinoderm in terms of…

A: Echinoderms are the class of animal species which belongs to the Phylum Echinodermata  and these…

Q: The hyoid articulates with the top vertebrate. O True False Question 10 The anatomical name for the…

A: Skeletal system is a body system which generally form scaffolding structure in the body so as to…

Q: Which type of cleavage leads to the development of a bird?

A: Cleavage refers to repeated cell division in the fertilized egg. Cleavage leads to the formation of…

Q: In which ways does the limb orientation of "advanced" tetrapods differ from that of  "primitive"…

A: Tetrapods are the four limbed structure.And these limbs have derived from fins.The limbs of all…

Q: What is the probable evolutionary sequence of the following clades (groups) of animals, from…

A: To find  What is the probable evolutionary sequence of the following clades of animals from the…

Q: Are there any major differences between extant apes skulls and old world monkey skulls? Take into…

A: ApesHave larger teeth in front than in the blackTheir molars are adapted for a diet that includes…

Q: Give at least 10 exoskeletons found in animals, source, its description and state their embryonic…

A: Exoskeleton animals, often referred to as exoskeletal animals or arthropods, are a variety of…

Q: Animals with three tissues layers have other synapomorphies that differentiate them from…

A: Biology is the study of cells, tissues, organs, organ systems, organisms, species, and communities…

Q: Why are there anatomical reference terms differences for pigs and humans?     What anatomical…

A: The pig and humans anatomical references may differ in some aspects as the pig is

Q: Female Pacific walruses migrate north each summer and return south to mate with the males before the…

A: Hi! As you have posted multiple questions and have not mentioned which are to be answered, we are…

Q: Determine the answer for both questions

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Q: Tigers Have mitochondria in their cells Share cellular, genetic, developmental and body plan…

A: Answer: Introduction: The tiger is an important existent cat species and belong to the genus…

Q: Question 15 Which statement about chordates is ACCURATE? O Not all vertebrates have a distinct head.…

A: Chordates are a diverse group of animals that are defined by certain shared characteristics. These…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.