Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges. Which statement accurately describes the scenario?

Q: After the glacial retreat at the end of the last ice age, some three-spine stickleback fish…

A: The formation of new species (speciation) occurs because of geographical isolation and mutation.…

Q: Insects that are termed "apterous" possess how many pairs of wings? A. zero pairs (wingless) B. two…

A: OPTION A

Q: It is said that sexual reproduction is selectively advantageous to asexual reproduciton. Why is the…

A: Reproduction is process in which genetically or biological similar offsprings are produced .…

Q: ny pairs of sister taxa differ markedly in their numbers of extant species. In this chapter we saw…

A: Evolutionary science places a extraordinary deal of emphasis on the assortment of species inside…

Q: Give at least 3 examples of higher forms of life that are bilaterally symmetrical. Explain why they…

A: The bilateral symmetry is a kind of arrangement of the parts and organs of a animals in which the…

Q: While observing primates at the zoo, you notice that the particular monkey you are watching uses its…

A: Introduction :  The study of evolution involves examining the various types of life, their traits,…

Q: An experiment was designed to analyze the metabolic rate of several bird species. A single bird was…

A: Metabolism is a series of interconnected chemical reactions occurring within a cell; the chemical…

Q: A heterodont organism has: A. An absence of molars B. Only canines C.…

A: A heterodont organism is one that has many tooth types in its dentition, each of which has a unique…

Q: According to "Homo naledi – New Questions on Human Evolution ", why was it significant that the…

A: The question is asking why it was significant that the bones of Homo naledi were found to be…

Q: At the end of which geological time period did the Starfish become extinct?

A: Biodiversity is diversity of various living organisms on the planet that it contains different types…

Q: Use evolutionary theory to explain the difference in longevity of women in matriarchal and…

A: Evolutionary theories take long term look at the emergence of human species. According to this…

Q: group of people have already been chosen to go on the first manned space flight to Mars.  Describe…

A: EVolution is a series of changes that occur over several generations and relies on the processes of…

Q: Mrs. Robinson is comparing the embryos of parrot fish and salamanders. Although the adult organisms…

A: In evolutionary biology, a concept of common descent in which multiple species originate from a…

Q: Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are…

A: We need to find the statement that is accurately describes DNA of spirochete and Nematode.

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: Prezygotic isolating mechanisms prevent hybrid offspring from occurring between species because (a)…

A: One of the main criteria for speciation is the reproductive isolation between the different two…

Q: give one species that is classified or exhibit the following: sex-role reversal show a photograph…

A: The sex role reversal is the mechanism in which  sexual selection among females is much higher than…

Q: Assume you are studying development in two species of iguana. You determine that a certain gene,…

A: The answer is d heterochrony

Q: Assume you are studying the fossil record of a certain lineage of sharks. You find that sharks in…

A: Ans :- OPtion (a) is right ---- Punctuated equilibrium

Q: What are the------ a. main three differences and three similarities between gametes of frog and…

A: Similarities between Frog and Fish: Both female frog and female fish have two ovaries in them.…

Q: a-Tiktaalik is a fish that lived 375 million years ago that grew to three metres long and had…

A: The study of evolutionary processes and speciation provides valuable insights into the mechanisms…

Q: Suppose you watch a video showing the development of an unknown animal. What clues can the…

A: Animals can be classified based on morphological characteristics (traits that can be observed after…

Q: In what chronological order did the following traits evolve? a) First the mesoderm, second the…

A: The correct option is C First the amnion, second the mesoderm, third the notochord and fourth…

Q: give one species that is classified or exhibit the following: lekking species show a photograph of…

A: The lekking species are the species which which have a fix matting partner .

Q: What is evolutionary radiation and relate it to what happened to the cichlids in Africa’s Lake…

A: Evolution refers to the change in characteristics of a species across several generations. The…

Q: Consider a population of toads living in a canyon here in San Diego.  Identify a physical barrier…

A: Allopatric speciation is a type of speciation in which the population having common ancestors,  gets…

Q: How can we account for the extensive differences between the two species?

A: Complex modern eukaryotes and simple prokaryotic bacteria all evolved from inorganic compounds such…

Q: Use the scenario to answer the question. A fossil indicates that whales might have started out as…

A: There are many signs in a whale's anatomy that their ancestors lived on shore. Hippos and whales…

Q: In at least some animal groups (for example, reptiles) asexual species tend to be over-represented…

A: Introduction Geographic parthenogenesis is a term used in hypothesis to reflect the patterns where…

Q: Instructions Rewrite this statement so that it accurately reflects Darwin's theory of natural…

A: The key to the diversity of various species on the Earth is evolution. A slow and gradual process…

Q: Give typing answer with explanation and conclusion What is an example of the bottleneck effect that…

A: In evolution, a bottleneck effect is considered an extreme example of genetic drift. When from a…

Q: Insectivora is a taxonomic grouping that was used to describe insect-eating mammals like armadillos,…

A:

Q: Swordtails, platyfish and Poecilia species are incapable of interbreeding with each other but…

A: Biological species defines the ability of two organisms to mate and produce offspring successfully…

Q: Fingers and toes would be an ancestral feature in land vertebrates. A) True B False

A: Vertebrates include all kind of animal species which contains backbone.

Q: fill the blank

A: Mendel has performed a few tremendous experiments and found different laws of genetics. He found…

Q: Which of the following is supported by molecular phylogenetic studies?    a.) Lobe-finned fish are…

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: The genus Sinitrofulgur includes whelk species that prey on Mercenaria bivalves. Which statement…

A: The correct answer to this problem would be:- D• The Sinitrifulgur specimens featured cracks in…

Q: Why is reproductive isolation insufficient to define a species? A. Reproductive isolation doesn't…

A: Option D is the correct answer i.e. Reproductive isolation can be accomplished in a variety of ways.

Q: Compare the forms of speciation that are slow to those that occur more rapidly. Make a list of the…

A: Speciation is defined as the formation of new and distinct species in the course of evolution. It…

Q: If we compare DNA sequences of related species pairs (human vs. gorilla and D. melanogaster vs. C.…

A: Adaptation is the mechanism in which a population adapts to its surroundings; it is the result of…

Q: You are examining a population of C. elegans in their natural habitat, a fresh steaming pile of…

A: Caenorhabditis elegans C. elegans ais a free-living transparent nematode. It is about 1 mm in…

Q: Use the scenario to answer the question. Scientists have found one new fossil that is similar to…

A: Given: Scientists have found one new fossil that is similar to Archaeopteryx.  It had a…

Q: nead sea turtles are large turtles that live in the and nest on the Florida coast. The female ead…

A: species that are short-lived or have a low survival rate among their offspring tend to lay more eggs…

Q: Eels have slender bodies that facilitate moving through narrow cracks in rocks when searching for…

A: -Eels which are ray finned belongs to the order Anguilliformes. -These are the limbless aquatic…