All land vertebrates, including humans and dinosaurs are descended from early tetrapods like Tiktaalik. Since the Devonian, land vertebrates have adapted to a wide variety of environments. What environmental changes might cause certain mutations to propagate through a population?     A cooling period which favors insulating characteristics like feathers     A mass die-off of plants which favors smaller forms with more efficient metabolism     A warming period which favors efficient cooling strategies     All of these are correct

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: population of 600 scorpions was split into four populations when irrigation canals were built…

A: When irrigation canals were created across their environment, the population of 600 scorpions was…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: Introduction :- A mouse, or mice as a group, is a tiny animal. Mice have a pointed snout, short…

Q: Observations of peppered moths living in seaside fishing villages compared to those iving near…

A: Evolution of the peppered moth occurred during the industrial revolution. It is an instance of color…

Q: Which of the following best explains why the Galápagos islands are still used for evolution research…

A: The Galápagos may be a dissolving pot of sea-going life at the conversion of the three sea…

Q: The breeder's equation, R= h²s, helps us think about ways we can limit the evolution of antibiotic…

A: The breeder's equation can be used to  predict the change in a trait (R) based on the estimate of…

Q: Prompt Human babies of low weight lose body heat quickly, and are more likely than other babies to…

A: Answer- Micro-evolutionary mechanism involves genetic drift, mutation, natural selection which…

Q: Why do radioactive isotopes in rocks nearly all have half lives of many millions to billions of…

A: Radioactive substances are substances that have unstable nuclei as a result they become stable by…

Q: Evidence of small-scale evolutionary changes is directly observed in an organism with short life…

A: In general, evolution is the gradual alteration of a population's genetic composition (and…

Q: Given the sources of evidence, explain precisely how it supports evolution.

A: Evolution is a continuous transition of living forms, beginning with the basic forms of the past and…

Q: Which one of the following traits is not shared by most model species? A. High fecundity B. Short…

A: Introduction  Development refers to the process by which a living organism grows and changes over…

Q: Researchers were working to determine the evolutionary history of modern horses using fossils of…

A: Introduction: Fossils are the traces of ancient life that have been preserved by natural processes,…

Q: The start of the sociocultural evolution of humans can be traced to the Stone Age, particularly…

A: Hunting or gathering food is a way of life for hunter-gatherer tribes. This was the sole way of…

Q: Modern humans over-eat sugar because we love it so much.  One might ask, “why are we designed by…

A: Evolutionary adaptation, or simply adaptation, is the adjustment of organisms to their environment…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: Genetic diversity is defined as the number of different alleles in a population. This term is used…

Q: Certain species of animals tolerate body temperatures of 50°C, but the vast majority do not. Some…

A: On the off chance that animal groups can develop to live where most living beings can't, it might…

Q: One of the deadliest animals on earth is the rough skinned newt. It produces highly toxic skin…

A: The formula that can be used to calculate the frequency of alleles is the Hardy-Weinberg formula.

Q: Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock…

A: It's depends on how fast new mutation occur

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A: Evolution is defined as the change in trait over a period of time.

Q: Over many generations, there is a good chance that an advantageous gene will be shared by every…

A: Population is any group of individuals living together.

Q: As a graduate student, you have been studying the genetics of heat tolerance in a population of…

A: Gene has a vital role in the bodily activities of all organisms. So the study of their specific role…

Q: Applying your knowledge of genetics, natural selection and evolution, how is the positive response…

A: long-term changes in temperature and climate systems are referred to as climate change. These…

Q: dinosaurs that have a mutation that causes a decreased ability to withstand temperature changes dues…

A: The mutation is always desirable if it offers any sort of survival advantage. If the mutation…

Q: Naturalists who have accepted evolutionary theory now propose that: all of the items listed…

A: Step .1.1: This entails the description of natural selection which is an important aspect of…

Q: Would it be possible to bring extinct species back? In an article it was expressed how brinng…

A: Extinct species - The species which no longer exists on Earth. Every member has died.Example - dudo…

Q: If this model continues, with no major changes to the environment, what do you expect to happen? A)…

A: Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing…

Q: Use the pedigree to answer the question: Ge the genotype and gender of Individual R in generation…

A: Pedigree  It is a genetic representation of family tree.

Q: Gray aphid (sap sucking insects) had offspring that evolved into red aphids through horizontal gene…

A: Microevolution It is defined as the change in  allele frequencies occurring over a time within a…

Q: DDI is an insecticide that was used extensively in the mid-1900s to kill mosquitoes. It was very…

A: Evolution is the change in the frequency of traits in a population over time. Due to adaptations of…

Q: Why is genetic variation among individuals beneficial?   Genetic variation staves off extinction…

A: The genetic variation is the changes in the genetic characteristics of an organism in the…

Q: A population of 600 scorpions was split into four populations when irrigation canals were built…

A: Introduction :- Genetic drift is a random fluctuation in the frequency of alleles in a population…

Q: Climate change is affecting the chemistry of the world's oceans. In particular, the ocean water is…

A: First of all we need to eliminate all the options discussing spines because question only speaks…

Q: A species of mouse lives in California. One day 50 of these mice sneak onboard a boat and are taken…

A: There are various stated evolutionary mechanisms which are characterized based on how it affects the…

Q: At the edge of the Arctic Circle, owls prey on field mice. Occasionally, in a litter of white field…

A: Variation in a population provides an advantage to the species if due to ani environmental changes,…

Q: Assume you are studying secondary contact in two species of birds. You notice that hybrids are…

A: A mixture Interbreeding between two animals or plants of different races, or genetically distinct…

Q: Which of the following statements about the DNA of two species is TRUE

A: Answer - Option B - The more similar the DNA, the more recent the common ancestor is likely to be

Q: Which of the following lists events in the proper order to reflect how natural selection works in a…

A: Answer. Natural Selection Selection is a composite of all the forces that causes the differential…

Q: Modern humans vary in the amount of Neanderthal DNA they carry in their genomes What geographic…

A:

Q: Would the biologist agree or disagree with the following statements? a) Since there was no…

A: Introduction :- Habitat refers to the place or type of environment where an organism lives and…

Q: The Tasmanian devil, a marsupial indigenous to the island of Tasmania (and formerly mainland…

A: The Tasmanian devil, a marsupial indigenous to the island of Tasmania (and formerly mainland…

Q: DNA sequences in many human genes are very similar to the sequences of corresponding genes in…

A: Convergent evolution In convergent evolution unrelated species develop similar character as they…

Q: . A population of red deer were trapped on an island off of England during the last interglacial…

A: According to Darwin's theory, evolution by natural selection require the following criteria:- A…

Q: Which of the following is NOT an example of evolution? Group of answer choices Increased wealth in…

A: Evolution is a essential concept in biology that clarifies how species alter over time through the…

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.