Critics of evolution often cite the fact that several hypotheses are being tested to help explain various stages of the origin of life. Explain how having several hypotheses for the evolution of monomers does not negate the fact that evolution of monomers was the first stage in the evolution of life?

Q: All of the following are distinctions between the process of mitosis and meiosis EXCEPT: Group of…

A: Cells divide and reproduce in two ways, mitosis and meiosis.  Mitosis is a process where a single…

Q: Make a brief explanation of this two photos and why did choose that picture. ( spiral and fractal )

A: In nature, we can observe mathematical patterns even in our daily lives. A pattern is a recurring…

Q: Please answer asap

A: Answer---          Correct option is (B) Cell cortex containing a gel like network of actin…

Q: Please answer asap and in short 3. What is the caloric cost of 30 min of running at a VO2 of 1.5…

A: Answer :- To calculate caloric cost, Formula is, Kcal = VO2 (L/min) x RER caloric equivalent x time…

Q: Which of the following statement about mRNA is TRUE?   Question 12 options:     mRNA splicing is a…

A: mRNA  The mRNA or messenger ribonucleic acid is the single stranded RNA which have code for…

Q: What are the twelve cranial nerves? Enumerate and describe them.

A: All the nerves arising from brain and spinal cord are included in peripheral nervous system. Nerves…

Q: The template strand of a gene contains the following sequence: 3'-TAC TTG TCC GAT ATC-5' Following a…

A: Introduction A mutation is a change in the sequence of nucleotides in DNA or RNA. Everyone is…

Q: Some white blood cells have lobed nuclei. Why

A: Ans- Unlike red blood cells, white blood cells (leukocytes) are nucleated and motile. They are…

Q: The marks a spot of dead myocardial cells. How does this change the depolarization and muscle…

A: Myocardial cells myocardial cells are located in the heart forming a branched network in the heart,…

Q: Natural Selection: Selective Pressure: Fitness: Artificial Selection:

A: Introduction: There are four mechanisms of evolution (the processes by which evolution occurs): 1)…

Q: How would poor oral hygiene impact a person's teeth? (easy and simple)

A: Oral hygiene is the activity of brushing one's teeth (dental hygiene) and cleaning between the teeth…

Q: What is Asexual reproduction? Explain kindly

A: Asexual reproduction: What is it?Asexual reproduction refers to a type of reproduction where a child…

Q: Explain why genetic disorders caused by recessive alleles of X-linked genes appear more frequently…

A: In humans and other mammals, biological sex is determined by a pair of sex chromosomes: XY in males…

Q: 2.1. Distinguish anatomical differences between C3 and C4 plants.

A: C3 plants  Plants that use the C3 pathway or Calvin cycle for the dark reaction of photosynthesis.…

Q: John and Jane each have a sibling with cystic fibrosis, but neither John nor Jane nor any of their…

A: Introduction  Cystic fibrosis (CF) is a genetic condition that affects the digestive system, lungs,…

Q: Briefly explain the light-dependent reactions of photosynthesis: where does this take place, what…

A: Photosynthesis is the process in which plants use sunlight, water, and carbon dioxide to produce…

Q: 70. Contraction of the ciliary muscle of the eye increases which of the following? A) Curvature of…

A: Ciliary muscle is present in the ciliary body of the eyes. It is present at the anterior part of…

Q: In the human enzyme encoded by the DCXR gene, a mutation in the protein coding region of the DCXR…

A: Introduction  A mutation is a change in the structure of a gene, which is the fundamental unit of…

Q: In the human enzyme encoded by the DCXR gene, a mutation in the protein coding region of the DCXR…

A: Mutations are perpetual alterations in DNA that can command and change the expression of a gene.…

Q: 5. Associated with sexual reproduction. 6. One division of the nucleus 7. Two daughter cells…

A:

Q: 6. In the carotid arteriogram, obstruction of the vessel at X is most likely to result in which of…

A: Introduction Carotid arteriogram:- It is an X-ray of the blood vessels to see the blood vessels in…

Q: If twin brothers fathered 2 boys, (one each) by different women, would the 2 boys have any simular…

A: The human genome is a full set of nucleic acid sequences for humans, encoded as DNA in cell nuclei's…

Q: Which of the following can explain the observation that two pureline mutants both showing identical…

A: Introduction :- The wild type allele is the one that codes for the trait that is most prevalent in a…

Q: Could you also explain how DNA fingerprinting becomes a disadvantage as it pertains to relatives or…

A: Introduction  DNA fingerprinting is a laboratory technique that uses the nucleotide sequences of…

Q: Artificial Selection: Biotechnology: Monoculture:

A: Within two theme emphases, Environment Biology and Human Physiology & Medical Sciences, the…

Q: A)Identify the parts of the vertebra arrows A and B point to. B) Which series of vertebrae does this…

A: The human vertebral column is divided into five regions - cervical, thoracic, lumbar, sacrum, and…

Q: A scientist working in an IVF (in vitro fertilization) clinic mistakenly produced a human zygote…

A: Genotype of the population is a number of populations with the given genotype and is calculated by…

Q: There are various types of DNA-targeting drug, including DNA alkylating agents, DNA intercalators…

A: Anti-cancer and anti-viral drugs are of different types based on their mechanism of action. Among…

Q: Discuss how excess carbon dioxide lead to a mass extinction in the Permian period.

A: A mass extinction event is when species disappear a lot quicker than they are replaced. This is…

Q: 62. Which of the following postovulatory events is most likely to be impaired by failure of the…

A: Introduction :- In women of childbearing age, the corpus luteum is a perfectly normal cyst that…

Q: biology explanation of reproduction type?

A:

Q: Why do we need to eat protein-rich food and how does its structure relate to its function?

A: Proteins are huge, complex molecules that assume numerous basic roles in the body. They do the vast…

Q: Omics techniques 100?

A: Omics techniques  is a technique which can measure the total composition of a specific biochemical…

Q: More recent additions to the hominan phylogeny such as Ardipithecus pushed hominan origins back ~4.4…

A: The correct answer choice is - suggest that bipedalism may not be strictly related to savannah…

Q: 3-week-old male newborn who was delivered vaginally at 33 weeks' gestation has a bulging anterior…

A: A shunt is a flexible tube or catheter which is specifically placed in a specific position in the…

Q: 2a) Which of the following statements about pyruvate oxidation IS TRUE?  a. NADH is oxidized in the…

A: The answer to the above questions are given below -

Q: 19. A 22-year-old man who was recently diagnosed with type 1 diabetes mellitus has learned to test…

A: Diabetes 1 is a chronic disorder. Due to this disorder the patient pancreas produces little or no…

Q: Find an event in human history or create one example that shows inbreeding increases the likelihood…

A: Inbreeding is the process of the mating of individuals or organisms that are closely related through…

Q: 48. During muscle contraction, actin-myosin complex is formed and produces a conformational change…

A: Introduction  Muscle contraction occurs when tension-generating regions within muscle cells are…

Q: 32. A lesion of the right fasciculus gracilis at C-5 is most likely to result in loss of which of…

A: A lesion of the right fasciculus gracilis at c-5 is most likely to result in loss of vibration sense…

Q: 45. A patient has medial deviation of the left eye and drooling from the left corner of the mouth…

A: Answer :- C)Midbrain Drooling is that the unintentional spillage of spit from the mouth. Drooling…

Q: Sarah Wilson What is a dihybrid cross?

A: DNA is the store house of genetic material. Certain gene express by a particular gene patient on the…

Q: Describe the location and structure of the different tissue types (epithelial, muscle, nervous,…

A: Note: As you have asked multiple questions, we are instructed to answer only one. Please repost the…

Q: The term alteration of generations, which two generations are involved and the way of reproduction.

A: alternation of generations,  it is the process by which plant perform two mode of life cycle sexual…

Q: It has been suggested that looking for the presence of the SRY gene would be a better way of…

A: SRY Gene - The SRY gene is found on the Y chromosome. The sex-determining region Y protein produced…

Q: Which of the following statement about RNA is FALSE? rRNA is critical for protein synthesis as it is…

A: Ribonucleic acid (RNA) is a nucleic acid which has similar features to DNA and is found in all…

Q: 20. The lesion in the coronal section of the brain shown is within the territory supplied by which…

A:

Q: An ecological pyramid shows the transfer of energy. Which level will contain only 0.1% of the total…

A: An ecosystem is any geographic area in which plants and animals interact with their environment and…

Q: (f) Parts of a Neuron A Axon (initial C E B segment) G H Synapse: The region where an axon terminal…

A: Neurons (also known as neurones or nerve cells) are the basic units of the brain and nervous system.…

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: