If two different organisms are closely related evolutionarily, then they will (a) be similar in size. (b) share a recent common ancestor. (c) have very different DNA sequences in their genes. (d) be randomly located throughout the world.

Q: 7. At electrical current irritation of the ventral roots of a spinal cord it is impossible to…

A: Introduction The nervous system acts as a control system that consists of highly specialized cells…

Q: Rank the following taxonomic groups, from greatest global species diversity (1) to least global…

A: How many species are there on Earth? Conservative and scientific estimates made by Robert May place…

Q: What is the role of dictyosomes in cell metabolism? What is their forming face? Their maturing face?…

A: Introduction :- In animal cells, the Golgi apparatus appears as a single compact or loose complex…

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: ANSWER BRIEFLY: Enumerate the 4 groups of coagulation factors according to function & opposite…

A: The coagulation term means the clotting of blood. The blood normally is in a liquid state, on…

Q: Question 2: DNA repair enzymes preferentially repair mismatched bases on the newly synthesized DNA…

A: The mismatch repair mechanism recognizes and fixes base mismatches created during DNA replication…

Q: What are the different parts of the cells both in animal and plant cells used for movement the cell?

A: Introduction  Cell migration in the cytoplasm, which is necessary for growth, cell division, and…

Q: A man with type B blood marries a woman with type A blood. They have the first child with blood type…

A: Introduction: Although blood groups refer to antigens on red blood cells, they are actually…

Q: 8. At the action of conditioned irritant - a sound signal there is a conditioned protective reflex -…

A: A reflex is an immediate, unplanned, and involuntary activity or reaction to a stimulus. The brain…

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: What is the significance of water and its solutions to all living systems, and why is it important…

A: The process through which living cells get and utilize energy to survive, develop, and reproduce is…

Q: Describe the function of a target cell and explain why it is present in organs. (max 5 points)

A: Cells are the structures of life that together make a tissue. Two or more types of tissues make an…

Q: Explain why there is no arrow that shows carbon atoms gojng from the soil to the tree based on the…

A: Carbon cycle is the movement of carbon atoms from atmosphere into organisms and plants and back to…

Q: The endplate potential decreases with distance because

A: The end plate potential is a potential that propagates to the neighbouring patch of muscle fibre…

Q: Outgroups are used to polarsise characters. Select one: True or False

A: Introduction: Cladograms are tree-like diagrams that can be used to show the links between creatures…

Q: c. MPN = Tube Original sample 10-¹ 10-² 10-3 10-4 10-5 10-6 Dilution factor 1 1/10 1/100 1/1000…

A: Introduction No of bacteria present in a sample can be estimated by MPN (most probable number)…

Q: By how much would a blood vessel need to expand using vasodilation to increase blood flow by 200%…

A: Explanation: If a blood vessel wants to increase blood flow by 200%, it would need to expand by…

Q: In aseptic technique, What will/may happen if you open a solid plate and not pass the inoculating…

A: Sterilization  The method to remove or kill bacteria completely from any place, part, object or…

Q: Discuss the effects of isotonic, hypotonic, and hypertonic environments on red blood cells and plant…

A: Osmosis is the net movement of water across a semipermeable membrane.

Q: compartments

A: A eukaryotic cell is a cell that has a membrane bound nucleus and other membrane bound compartments…

Q: Describe the role/function of the coronary circulation.

A: Introduction Large and muscular in nature, the heart constantly pumps oxygen-rich blood to the brain…

Q: Parallel evolution, convergent evolution and character state reversals are all examples of Select…

A: Parallel evolution is the evolution of independent species, which share the same characteristics.…

Q: The mouth is part of our digestive system. It would make sense then, that we would have more of the…

A: Cells are dynamic in the sense that they employ energy to accomplish a range of cell tasks such as…

Q: Proteins trafficked to the golgi arrive ____. In the chloroplast, proteins are trafficked in a _____…

A: Protein trafficking is the transport of proteins to the correct subcellular compartment.  Proteins…

Q: Define "synapomorphy" and "symplesiomorphy".

A: Animals are classified on the basis of similarities and dissimilarities. Cladistics recognises two…

Q: Question 6 The genetic code is considered redundant because: It is prone to mutations The same mRNA…

A: Introduction: The creation of a polypeptide by messenger RNA (mRNA) is known as translation. The…

Q: Based on these sequences. Remove codons 24 to 66, inclusive. Sequence A…

A: The enzyme complex responsible for this excision is known as splicesome. Splicesomes are complicated…

Q: Is natural selection random with respect to fitness?

A:

Q: Write the class that exhibits the followin characteristics: Presence of velum in medusae Hydrozoa…

A: Velum is a membrane or membranous structure that covering another structure.planula is free-swimming…

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: Describe primary and secondary active transport in detail

A: transportation in cell In biology, there are two mode of  transport systems in the cell which…

Q: Blood glucose levels remain stable between meals despite the fact that the body's cells continually…

A: Glucose is an instant source of energy. It is used in the process of glycolysis and the citric acid…

Q: 8. Explain how buffer systems are important in organisms. In the human body, bicarbonate and…

A: A buffer system is important for a living thing as it helps to maintain a constant chemical internal…

Q: How does Na+/K+ ATPase/Pump promote osmosis across plasma membrane? How does it establish the basal…

A: The cell is the important basic and fundamental unit of life. It has the outer membrane which is…

Q: Which of the following most likely has a sequence of hydrophobic amino acids that permits the…

A: Correct answer: (a) Translocator (TIM/TOM) The transport of proteins inside the mitochondrial…

Q: Gel Running Buffer is made and kept at 14X concentration for storage. We will need 1.5 L of this…

A: Electrophoresis is a technique in which desired molecule is seperated when electric field is applied…

Q: C -B اصليين انا A

A: Some cells, such as unicellular bacteria and protozoa, are complete creatures; others, such as…

Q: Do peptide bonds get protonated or deprotonated? Explain

A: Peptides are short chains of amino acids that are linked by peptide bonds. Chains of less than 20…

Q: Describe protein coat assembly • Describe the role of Coat Recruitment GTPases (include coat…

A: Within a eukaryotic cell, transport vesicles constantly bud off from one membrane and unite with…

Q: Which of the following helped to lay the groundwork for understanding the record of historical…

A: The Earth was created by deposition from the solar nebula approximately 4.54 billion years ago,…

Q: Which arrow in the diagram of transcription below is labeling the 'SENSE DNA strand? Note that the…

A: In genomics, transcription is the process of creating an RNA copy of a gene's DNA sequence. This…

Q: What is the expected number of double crossovers based on the map? What is observed number of double…

A: Modern DNA techniques and genetic engineering can help to speed up recombination. Genetic…

Q: What is the importance of the aseptic technique?

A: Microbes are the tiny , microscopic organisms that cannot be visualise as such through naked eyes .…

Q: 2. What link of a contour of biological regulation provides possibility of regulation "on a…

A: Introduction The contour of biological regulation:- It is a way for information processing &…

Q: Which of the following is true about nucleosides and nucleotides? Choose all that apply. A…

A: Nucleosides and nucleotides are structural subunits of nucleic acids such as DNA and RNA.…

Q: Monophyletic groups are desirable in classification as they Select one: a.reflect evolutionary…

A: Monophyletic group has all descendants taxons from a single common ancestor.  Classification is…

Q: You prepared 10-7, 10-8, and 10-9 dilutions of a bacterial suspension in sterile saline. Then you…

A: Introduction There are different culturing techniques such as agar plates, broth culture, stab…

Q: Codons 24 to 66 represent an intron.  At what point in the process of protein synthesis are introns…

A: Transcribing DNA to RNA is the initial step in a long process that finally synthesizes functional…

Q: interpret the following ABG:       pH= 7.7      paCO2= 30     paO2= 70     HCO3= 32…

A: Introduction  When dissolved in water, chemicals known as electrolytes acquire a natural positive or…

Q: What is the function of NEU?

A: An oncogene is a mutated gene with the ability to cause cancer.

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: