Imagine you are a scientist observing rats in the wild. As the rats reproduce, rats born with white fur slowly begin to outnumber rats with black fur. In three to five sentences, provide two or more different explanations of why the rats with white fur might be outnumbering the rats with black fur.

Q: You get a job with the Texas Dept. of Agriculture. One day you are called to a cattle ranch that is…

A: Polygyny occurs when two or more queens share a single colony, and the queens can either be related…

Q: Use the following passage to answer the next two questions. Ducks are aquatic birds. Their feet are…

A: Introduction:-  Ducks are aquatic birds and do have webbed feets. It is believed by biologists that…

Q: Which of these is the correct explanation of mass change in developing eggs as illustrated in the…

A: The eggshell contains >1000 pores. The metabolic activities of the embryo require energy.

Q: Imagine a population (with individuals of all possible genotypes) whose food supply is sometimes…

A: Humans possess two types of chromosomes: autosomes and sex chromosomes. Some of the physiological or…

Q: for 14. Everyone in Squidward's family has light blue skin, which is the dominant trait for body…

A: A Punnett square is an illustration of the potential genotypes of an offspring resulting from a…

Q: Genetic diversity is important for survival in a population as the environment changes. Describe 3…

A: Genetic variability is either the presence of, or the age of, hereditary contrasts. The Genetic…

Q: What is the probability that one of them is a sphere and the other is a pyramid (order not…

A: Probability is the study of finding the possible outcomes in a total set of outcomes. Thus it tells…

Q: difference in shell size and shape prevents most mating attempts between snails from the two kinds…

A: Here, we can see that the snails have adapted themselves according to the environment and hence…

Q: A species of freshwater snail is introduced to many ponds on an island. In ponds with crayfish (a…

A: The correct statement that summarises what is happening in this example is-  • In allopatry,…

Q: You discover a new species of reptile that can either lay eggs or have live birth. The species has a…

A: Oviparity is the process of  laying eggs, in these types of eggs fertilization can be external or…

Q: Crawfish are shelled organisms that live in shallow freshwater rivers. They can have antennae of…

A: Offsprings can end up with the traits that are different from the traits of their parents. The…

Q: Controlling for body size, would you expect a flightless bird to produce eggs that are larger than,…

A: Flightless birds show the discontinuous distribution in the biosphere. They have a small head,…

Q: The frequency of an autosomal recessive condition is 0.001 (1 in 1000) in a population. Assuming…

A: Hardy Weinberg’s principle is the mathematical representation of population analysis which…

Q: some cases, males or females do care for young of their own species that are not their own, as when…

A: There may be reason that adoptions fostering helped these females reproduce later on as Regular…

Q: This trait results from a mutation in the a-keratin gene, and this mutation causes the feathers to…

A: The effect of mutation is seen if there is a single change or multiple changes. This depends upon…

Q: populations that use sexual reproduction will demonstrate increased survival than those that use…

A: From the beginning of life at the early stages to the present condition, several species have been…

Q: Which of these events describes a trait of the rabbit that is MOST likely passed on to future…

A: Traits which are passed down to the future generations are those trait which gives the species the…

Q: Write a conclusion for pig Xenotransplantation.

A: Conclusion : Genetically modified pigs have great promise for Xenotrasnplantation. consequently,…

Q: Nearly all mammals require sleep, explain how the lack of sleep can change the fitness of an…

A: Sleep is assumed to be fundamental to the entire animal kingdom. There are various environmental…

Q: Based on the data shown in the graph, select the statements that describe what happens whenever one…

A: Often organisms reproduce to form their next generation. This reproduction depends on natural…

Q: In a group of guppies, some individuals have a spotted tail and others have an unspotted tail. In…

A: In diploid organism every chromosome is present in two copies. So every gene has two alleles…

Q: Of all birds, the flightless kiwi has the highest proportion of yolk in its eggs and the longest…

A: Eggs are the products of fertilization and house the developing embryo .

Q: Give an example of a variable human trait that increases the fitness of the possessor. Give an…

A: (a) One of the variable traits that increases the fitness of the possessor is adaptation.

Q: Imagine a population of moths where wing color is determined by one gene with two alleles.

A: Mendelian inheritance, named after the pioneering geneticist Gregor Mendel, refers to the set of…

Q: Based on the fictional graph below investigating the impact of color on the # of eggs laid by female…

A: Female dragons are also called drakaina. It is a female serpent or dragon and , sometime with…

Q: This diagram illustrates a type of reproductive process in an organism. Parent Offspring B. Based on…

A: Reproduction is the natural cycle by which new individual creatures – "offspring" – are delivered…

Q: You observe that a high percentage of frogs, which are especially sensitive to environmental…

A: Answer :  Experiment :  Design two ponds : Pour water from pond1 and agricultural flow to pond 2 .…

Q: la. Identify your species: 1b. Identify another species that is relatively closely related to your…

A: Speciation is formation of new species from the existing one.

Q: Briefly Write the difference between Mice and Rats?  Please answer at your own easy words.

A: Mice  Rats Shorter in size ( 7 to 8 inch with tail) heavy and lengthen in size ( 12 to 18 inch…

Q: Why did Galton modify the quincunx? a. Because the distribution of a trait (e.g., height) in…

A: Introduction :- Physical characteristics are what traits are. Fin length, body shape, colour…