C -B اصليين انا A

Q: Is natural selection random with respect to fitness?

A:

Q: Differentiate between the roles of the atrioventricular and semilunar valves.

A: The heart has valves to maintain the unidirectional flow of blood, called the heart valves. This…

Q: Where would you expect to find ependymal cells? in the deep nuclei of the brain O in the peripheral…

A: Ependymal cells:- it is one of the glial cell found in brain. It is ciliated epithelial glial cell…

Q: Which biological molecule determines your phenotype? carbohydrates lipids proteins nucleic acids

A: Introduction :  The physical traits of an organism that are determined by an individual's response…

Q: For numbers 17-20. arrange in sequence the coordinated functions of Respiratory and Circulatory…

A: Introduction  All living things must engage in the act of respiration in order to survive. You…

Q: Describe how a feature of the whole is not observed in th

A: Many of the most crucial features of how cell functions are the consequence of the collective…

Q: Parsimony criterion is used to choose the hypothesis of relationships which requires the least…

A: Homology It is the similarity of the structure, physiology, or development of various species of…

Q: Classify and characterize the plant-like protists (algae) based on the following parameters.…

A: Note: As Per Guidelines, we can answer 3 sub-parts of a question at one time. Please ask rest…

Q: Briefly explain the difference between Wright Staining and H&E Staining (why use one over the other)

A: Staining is defined as a technique ,which is utilized for increasing the contrast in biological…

Q: What trends you see in the data - Explain how the error bars support what you are saying - Why…

A: Life expectancy is the number of years a person is likely to live after reaching a certain age, as…

Q: salinity

A: Salinity: It is defined as the is the saltiness or amount of salt dissolved in a body of water…

Q: Other than salinity, what other parameters can a refractometer measure? How is it different from…

A: Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water.It is…

Q: Construct a cladogram showing possible evolutionary relationships among: Cnidaria Porifera…

A: Evolution  The change in heretible characteristics of a species over upcoming generations is known…

Q: Consider the graph below. This is an example of whatkind of natural selection? O Directional…

A: Stabilizing, directional, and diversifying selection either decrease, shift, or increase the genetic…

Q: This diagram shows a small part of a food web. Notice that the food web contains multiple food…

A: A consumer-resource system of the food chain is an important aspect to maintain the balance of our…

Q: Similarities which have arisen independently in two or more organisms that are not closely related…

A: Evolution is the process of changes which an organism develops with change in the various…

Q: describe and explain 2 physical ways that a human may develop hypertension (abnormally elevated…

A: Explanation: One way that hypertension can develop is if the walls of the blood vessels thicken.…

Q: What hypoth generation 0 the coefficier 1, 2, 3 and 4.

A: Consanguinity is the coupling of two people who are second cousins or even closer in relation. Based…

Q: Explain how the following affect membrane fluidity: – Level of phospholipid tail saturation – Level…

A: The thin, living, elastic, semipermeable lipoproteinaceous membrane that is present around the cell…

Q: Choose only one which is the correct? Which of the following best describes a trait of life? Trees…

A: Explanation: 1. The origin of the fruit product is a transformative variation that works with the…

Q: Write a summary: Simply put, a lab report is a way to explain what you have done in an experiment.…

A: "Research" is the process of researching and evaluating many elements of a problem to find a…

Q: 20. What are the differences in function between the right and left cerebral hemispheres?

A: The cerebrum is divided into left and right hemispheres by a deep longitudinal fissure, the two…

Q: What is the relationship between structure and function of ribsomes

A: Ribosomes  It is a non membranous structure found in both prokaryotes as well as eukaryotes.

Q: Differentiate the following based only on their general external anatomy: Mosquitoes versus Flies

A: The mosquito and flies both are insects belongs to the same order named, diptera. they are named…

Q: 20 Assume height in humans is determined by three genes. A, B, and C each of which also occurs as a…

A: Introduction: Multi-gene-influenced features are referred to as polygenic traits. Height and eye…

Q: 5. Analysis of Macromolecules in Unknown Solution Record your results in Table 2.11. Based on the…

A: Introduction In our body we have four different types of bio-molecules which perform various…

Q: Why would the ventricles need thicker walls for contraction (compared to the atria)?

A: The circulatory system has a heart, many "arteries and veins that run throughout the body, and…

Q: A specimen on a 65 year-old male was received in the blood bank for presurgical testing. A type and…

A: Immune system of the human body is broadly divided into two parts, innate immunity and adaptive…

Q: Cnidarians do not have mesoderm. Discuss the costs and benefits of this condition, especially with…

A: Explanation: Cnidarians do not have a mesoderm layer in their bodies. Because of this state, the…

Q: immunosenescence.

A: Immunosenescence refers to the age-associated decline of the immune system which may contribute to…

Q: In a class of 20 biology students, 12 have the recessive disorder, chronic whining syndrome. Use the…

A: Hardy-Weinberg equation is generally used to predict if a given population is evolving or not. It…

Q: Describe the features of the fluid mosaic model of the cell membrane in detail

A: Please follow step 2 for detailed explanation.

Q: Name three features often associated with the evolution of an endoparasitic lifestyle. Compare and…

A: -Explanation: Reduced or absent locomotive structures: -Endoparasites from the phylum Nematoda have…

Q: How are the "types ot veterbrae" modified in birds, relative to other amniotes?

A: Many variables influence the survival or extinction of an organism's population. On the other hand,…

Q: What do we get from each macromolecule

A: Biological macromolecules are the molecules that are needed in enough amount for the body.…

Q: Two species live in the same general area, but use different habitats or are active at different…

A: The collection of different individuals of same species that are located in a particular area at a…

Q: Differentiate the Cimex sp. versus Ixodes sp. based on their morphology, ecology and/or behavior

A: Introduction: Insecta is an important class of the phylum Arthropoda. Some of their characteristics…

Q: 7. Describe the primary function of neurotransmitters at the synapse.

A: Neurons are the nervous system's cells. They transport neural signals throughout the body as…

Q: hox genes and segment polarity genes

A: Drosophila melanogaster is a species of fly. This species is often referred to as the fruit fly or…

Q: Other than salinity, what other parameters can a refractometer measure? How is it different from…

A: The amount of salt present in water or soil is referred to as salinity. Primary salinity (also known…

Q: Chromosomes core of 8 are composed of 1. forming a structure called a chromatin; DNA; histones;…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Is our gender identity partly determined by our biological and anatomical characteristics?

A: Sex  Sex of an individual differentiate them in between male and female.

Q: Choosing one neurotransmitter, discuss neurotransmission from synthesis to release in the…

A: Neurotransmitters are chemical messengers released by neurons for transmitting signals from nerve…

Q: The endothelial cell Circulating platelets O ADP secretion Adhesion to subendothelium Subendotelium…

A: Here, we are given the diagrammatic representation of different steps in haemostasis.  This process…

Q: Differentiate the following based on their general external anatomy:  Mites versus Ticks

A: The study of insects is known as Entomology. Ticks and Mites belong to Kingdom Animalia and Class…

Q: Characteristics of chemical potentials include the following, EXCEPT: O involve neurotransmitters O…

A: Introduction: The connections between two neurons are called synapses. The presynaptic neuron in a…

Q: when carrying the microscope, why should one hand hold the bottom of the base?

A: A microscope is a laboratory instrument used to examine objects that are too small to be seen by the…

Q: Construct a cladogram showing possible evolutionary relationships among: • Platyhelminthes •…

A: Classification is the process of categorizing microorganisms into groups or taxa depending on…

Q: Medical researchers discover a new compound, known as Serenity, which has been shown to be effective…

A: A hypothesis is an assumption, an idea that is proposed for the sake of argument so that it can be…

Q: Question: Examine the table. According to the table, how "old" are your eyes? Table 2: Age Point…

A: Introduction  Accommodation is the eye's ability to adjust its focal point from far-off to close-up…