1. A species of cactus has spines. How would biologists explain how a species of cactus with spines evolved from an ancestral cactus species without spines? 2. A species of fly lacks wings. How would biologists explain how a species of fly without wings evolved from an ancestral fly species with wings? Proficient answers should include correct references to the science concents below

Q: A consortium of dairy and beef farmers has hired you to study the evolutionary origins of domestic…

A: Evolution is a change in the heritable qualities of natural populaces over progressive ages. These…

Q: How come that evolutionary relationship takes place based on anatomical evidence.  2. What is…

A: Evolution is that the modification within the characteristics of a species over many generations and…

Q: Birds are unique because th

A: Flight is the primary mode of locomotion birds. Flight assists a birds with feeding, breeding,…

Q: 5. Analogy and homology are important concepts used in comparing species. Which of the following…

A: Evolution is the process through a living organism acquires new characters over a period of time due…

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: 5. Please indicate crown and stem elephants on the phylogeny below. (Note: African elephants and…

A: Phylogeny-- Phylogeny , the history of the evolution of a species or groups specially with reference…

Q: When you examine the phenotype of wings - why can you conclude that wings & flight are analogous…

A: Change in visible characteristics of an organism which takes place from many generations is called…

Q: All birds living today are descended from a group of dinosaurs called theropods. Theropods first…

A: Introduction :- Fossils are the preserved remains, traces, or imprints of organisms that lived in…

Q: C. Vestigial structures 34. The forelimbs of humans, horses, cats, and bats are considered to be…

A: The organs which have same anatomical structure but are different in function is called as…

Q: 7. Identify 3 species that would likely have homologous structures (structures that are constructed…

A: Phylogenetic tree is represented by the lines and nodes. Construction of phylogenetic tree is a way…

Q: Defenses against herbivory include secondary metabolites (such as terpenoids and nicotine) as well…

A: Animals whose primary source of food are plants are called herbivores. Example: deer.

Q: Which of these sentences states an opinion? O F. Paleontologists have exciting jobs. O G. Fernando…

A: The opinion refers to the view or judgment formed by a person about something. It does not have to…

Q: Which two structures are most similar because of homology? butterfly wing and bat wing bird wing…

A:

Q: The perfectly formed wings of insects that are reduced in size and never used for flying can be…

A:

Q: The phylogeny shows types of feathers below, and how early birds are related to each other. praptor…

A: Answer :- Option (D) is correct. - The common ancestor to Microrapter , Sinosaurus , and other…

Q: The discovery of Australopithecus afarensis (Lucy) was anatomically important because of what trait?…

A: Introduction The process of natural selection is used to change the characteristics of a species…

Q: Describe one characteristic you see in organism 3 which might have had an advantage over organism 2.…

A: *Darwin proposed that Fossil records provides evidence that the living organisms has evolved a…

Q: Vestigial Features ... Group of answer choices A: may have played a more functional role in an…

A: Introduction: Vestigial organs are the structures (genetically determined by evolutionists) that…

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: Mammals have a particularly good sense of earing thanks to their inner ear which includes three tiny…

A: Introduction Evolution is the process of a species' features changing over numerous generations…

Q: Archaeologists and Paleoanthropologists often look for evidence of early hominins by studying…

A: Answer : Option (1) is correct, - taphonomy.

Q: 9. a. What fossil primate possesses traits of both anthropoids and hominoids? b. What are those…

A: Hominid is a sort of primate that has a place with the family Hominidae. In scientific…

Q: Part 6: Complete the chart below. Place an "X" in the appropriate column to indicate which mystery…

A: Fossils are the preserved remains of living beings that got buried under the layers of soil in such…

Q: Hox genes Group of answer choices a. are only found in nematodes and arthropods   b. are pseudogenes…

A: A gene is a fundamental basis of heredity in biology and a pattern of nucleotides in DNA that…

Q: nue to be

A: Paraphyletic:- If a group's last common ancestor and all descendants of that ancestor are included,…

Q: in the space below, draw an evolutionarily accurate phylogenetic tree with the 5 lineages of…

A: Phylogenetic tree --  Phylogenetic trees are hypothesis  not definitive facts  and it can be defined…

Q: Read the article on the bat's wings (link below). The author seems to disagree that evolution is…

A: "Evolution is the concept of similarities among organisms indicating a common ancestor to which all…

Q: 1. You will notice that some lineages (e.g. the descendants of species 56) branched many times and…

A: Lineages These are defined as the sequences of biological groups that are connected through the…

Q: moryos stage, Fish Salamander Tortoise Chick Rabbit Human Describe how the embryos changed for each…

A: Human Developed limbs, defined features in face, neck, ears, loss of tail, tiny fingers present…

Q: Examine the figure attached. Provide one idea of how gene evolution of major body patterning genes…

A: "Genes" are the fundamental unit of heredity. They store genetic information in the form of DNA,…

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.