Identify and label the parts of the following specimens of Phylum Cnidaria:

Q: You stimulate a presynaptic neuron to create an action potential. Then, you record what happens to…

A: Normally a cell or a neuron remains in a polarised state that is its interior is negatively charged…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Here membrane potential raises from -70mv to - 55mv.  That means depolarization occurs.  At…

Q: During DNA replication, one of the new strands of DNA is synthesized continu while the other is…

A: DNA replication is a process in which DNA makes copies of itself with the help of the enzyme DNA…

Q: Is there any other steps or is this the full solution? im still a bit confused.

A: Punnette square is the tabular representation of different phenotypes and genotypes in a cross.…

Q: answer with good handwritten diagram.

A:

Q: 3. Select the muscle that laterally rotates the thigh and originates on the inner surface of the…

A: Muscles are the only tissue in the body that has the ability to contract and therefore move the…

Q: Mark the flow of water with an arrow for cells that have been placed in solutions of differing…

A: Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable…

Q: Which of following is a change that accompanied the increase in brain size as hominids evolved? a…

A: Introduction: The evolution of the human brain has been a combination of restructuring of brain…

Q: After 16 hours of fasting, your brain cells need energy and since brain uses glucose as a major…

A: Introduction Fasting:- It is abstinence from food or drink or both for health, ritualistic,…

Q: Think about the important functions of telomeres. Now, imagine a scenario in which a mutant…

A: Introduction  Telomeres are repeating sequences that protect the natural ends of linear eukaryotic…

Q: Blood typing in human depends on three alleles .The IA and IB  alleles are codominant and and the…

A: Blood groups are determined by three alleles. These alleles involve IA, IB, and i. i allele is…

Q: 6. What are the similarities and differences between the transcription process and the replication…

A: Replication A biological process of in which two identical copies of DNA are produced.

Q: Describe the step of protein synthesis.

A: Introduction: A protein is an exceedingly complex natural molecule made up of amino acid residues…

Q: An individual heterozygous for 3 genes, Aa Bb Cc are test-crossed to aa bb cc and 1000 progenies are…

A: Note: There is an error, Abc - 145 instead it should be, ABC - 145. Given: An individual…

Q: What is the main cause of genetic variation between identical twins?   A. genetic drift   B. the…

A: The fertilization involve fusion of male and female gametes either internal of the female body or…

Q: Do you think the environment shapes the plants it hosts? Or is it the other way around?

A: The biotic and abiotic elements that govern forage growth and development are referred to as the…

Q: Describe the difference between population density and dispersion Why do you think the population…

A: Population density  Population dispersion It is a measure of number of individuals of a population…

Q: Why is population level genetic variation important for evolution  and what causes genetic variation…

A: Evolution :- Heritable traits of species that are changed after several generations is known as…

Q: Answer questions 12-16 , I need the letter of your answer

A: Environment refers to the area where organisms live. Ecosystem is the organised community of living…

Q: You have two types of garden gnomes in a population. The majority are travelers, but some are…

A:

Q: 1.What would happen if an error occurs in a serial dilution?

A: Introduction  Dilution errors are flaws in sample preparation that occur between the time a sample…

Q: (A) Define Eusocial behavior. (B) What is it about the mating system of Eusocial hymenoptera that…

A: Eusociality or eusocial behavior is the Greek word, in eu means good and social. It is the highest…

Q: pharmacy conversions 20. three and one-half fluid drams= fl3 22. one thousand units 22. one thousand…

A: Answer :- 20) 3 and 1/2 fluid drams Fluid dram= 5  3×1/2=7/2 fluid drams = 35/2 ml = 17.5 ml 3 and…

Q: Define cell cycle.

A: Introduction: Cells are the basic building frames of all living creatures and are typically found at…

Q: Which of the following does not occur during telomerase extension of parental DNA? a. Translocation…

A: Introduction: Telomerase, an enzyme having   RNA template, extends its ends by copying the RNA…

Q: Which is a disaccharide? O glucose O fructose O sucrose cellulose

A: Monosaccharides are the simplest carbohydrates; and are termed simple sugars. A disaccharide is the…

Q: Which of the following is true about the pituitary gland The pituitary gland is located beneath the…

A: A) Yes, the pituitary gland is found attached to the hypothalamus, hanging with the help of a stalk…

Q: Altruism Circadian rhythm Neanderthal Pheromone

A: Altruism An organism is said to behave altruistically when it's behaviour benefits other organisms ,…

Q: What major event caused the adaptive radiation of mammals? A. the mass extinction of the dinosaurs…

A: Introduction Evolution is defined as the change in the genetic composition of a population during…

Q: What are the reasons why the products based on onion and garlic that use against COVID-19 can be…

A: Generally, intake of onions could help build immunity to protect against infections. Onions are…

Q: Nervosa

A: Anorexia nervosa is a life threatening psychiatric condition in which person became very concern…

Q: Please answer fast Write two different partial diploid genotypes where Lac Z is produced…

A: The lactose operon is an example of inducible operon in which the expression of downstream genes…

Q: When creating an artificial cell using a dialysis bag, how would you predict how the artificial cell…

A: In the human body, there are two kidneys. They are located at the back of the body, under the ribs,…

Q: Which of the following is clearly visible when viewing the ventral aspect of the brain Transerve…

A: Answer :  Olfactory bulbs or corpus callosum is clearly visible when we viewing the ventral aspect…

Q: Define the term PCR.

A: Dr.Kary Mullis developed the polymerase chain reaction (PCR) in 1983. The enzyme utilised in this…

Q: 1. After an extensive forest fire, an affected region of the forest shows signs of ecological…

A: The movement of plant and animal species in a region from smaller simpler creatures to bigger more…

Q: Which of the neuroglial cell types shown form myelin sheaths within the CNS? OA Ов Ос F

A: Neuroglial cells Neuroglia or glia or glial cells are non-neuronal cells present in brain and spinal…

Q: Meselson-Stahl experiment

A: Meselson and Stahl Experiment was an experimental proof for semiconservative DNA replication.

Q: (i) Claim #1: The shortening of an individual’s telomeres is a sign of poor health and/or of an…

A: Accurate However shortening of telomeres does not merely indicate direct affect on a person's…

Q: 4. a) Which channel/s is/are open when resting membrane potential is formed? b) Which channel/s…

A: a) Normally indide of the cell is negetively charged and outside is positively charged.  Resting…

Q: Sickle cell anemia is a genetically inherited autosomal recessive trait in which results in a…

A: a) The homozygous individuals of sickle cell anemia are affected, their frequency can be represented…

Q: Which mechanism of fossil formation created a replica of an organism's original form? a natural…

A: Introduction When an organism is buried via water that contains debris and minerals, in addition to…

Q: The two components common to all viruses are nucleic acid (either DNA or RNA) and protein coat…

A: Viruses are non-cellular entities that are characterized by an inert crystalline structure outside a…

Q: A client engages an engineering firm to develop environmentally-friendly packaging for the sports…

A: Introduction Sustainability is defined as the method of utilizing the resources and meeting the…

Q: Which of the following best defines gene flow? the sum of all genetic traits in a population's…

A: There are many factors which is responsible for changes in the allele frequency of the…

Q: Mitochondrial Oxidative phosphorylation is demand driven   Group of answer choices True False

A: Oxidative phosphorylation is the process where ADP is phosphorylated to form ATP. ATP is the energy…

Q: Create a Dichotomous key that includes Human Pig Aye aye Koala Giant panda

A: A dichotomous key is a useful scientific tool for identifying various organisms based on their…

Q: 17. Genetic equilibrium can be disrupted in many ways. Which of the following describes changes in…

A: According to several "evolutionary theories", living creatures change their physical and anatomical…

Q: Which of the following is true of proto-oncogenes?     They tend to be genes functioning in highly…

A: The answer is ''they tend to be genes functioning in highly differentiated cells''.

Q: What are the roles of caffeine in plant defense and survival.

A: Introduction Caffeine:- It is a central nervous system stimulant of the methylxanthine class, It is…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.