Q: Nonsilicates are a group of minerals that DO NOT contain what two elements? A. silver and gold B. si...
A: Answer-B. Silicon and oxygen
Q: Draw a typical climate diagram for a tropical rainforest. Label all parts of the diagram and describ...
A: The tropical rainforest climatograph includes average rainfall and temperature information, whereas ...
Q: Most botanicals that treat the skin are topical or taken orally. What layer of skin does a topical b...
A: Option 4 i.e. all layers of skin are affected by a topical botanical.
Q: Question 3: A woman suffers from albinism and is also a carrier for haemophilia. Draw a well- labell...
A:
Q: All of the following are important functions of the innate system EXCEPT that a. Promotes early defe...
A: Immunity :- It is the tendency of our body to fight against foreign microbes . The system of our bod...
Q: Differentiate the following Epidemiological Measures a. Frequency Measures: Incidence and prevalence...
A: Frequency measure variable such as population size, ratio and rate of death and birth , occurance of...
Q: IN Question Examine a few flowers of any cucurbit plant and try to identify the staminate and pistil...
A: Introduction From the above question we have to Examine a few flowers of any cucurbit plant and try ...
Q: What is the major difference between the mechanism involved inattenuation and riboswitches and the m...
A: Attenuation is a mechanism that controls gene expression in a bacterial operon and causes premature ...
Q: f1)Which of the following best describes polygenic traits? A single trait is affected by multipl...
A: Polygenic Traits: A polygenic trait is one that is influenced by a number of non-allelic genes. Pol...
Q: What do we need if we want our defibrillator to work effectively?
A: Defibrillator is used when the heart is not working properly because it is unable to generate curren...
Q: How does a receptor “know” which signaling molecules to bind?
A: Signaling Receptors are a type of receptor that sends out signals. Receptors are ligand-binding prot...
Q: 3. Hershey-Chase (1952) The Definitive Proof Hershey and Chase utilized phages in their research. A ...
A: Hershey and Chase blending experiment gave unequivocal proof that DNA is the genetic material.
Q: A table comparing the biological characteristics of the five classes of immunoglobulins is shown bel...
A: Immunoglobulins are also called as antibodies which are made by white blood cell (WBC)
Q: Select the correct pathway in the angiosperm lifecycle. Sporophyte - mitosis - spores - gametophyte ...
A: Angiosperm, also known as flowering plants, is the largest and most diverse group of flowering plant...
Q: The human blood is classified into four different blood types, namely A, B, AB, and O, due to the di...
A: Answer :: First we shoud know Agglutination. Agglutination is the formation of the clumps of cells w...
Q: Incomplete dominance is characterized by a cross between homozygous dominant and recessive genes tha...
A: B. There is 1/2 chance that the offspring will have blue-colored pupils and wavy hairs. is correct a...
Q: A gardener finds that some bean plants have pubescent leaves and others have glabrous leaves. a) Bas...
A: Mendel selected pea plants to investigate genetics because they had clearly recognizable characteris...
Q: In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against ...
A: Indirect active transport uses the downhill flow of an ion to pump some other molecule or ion agains...
Q: Explain the scientific cause of Down syndrome (alterations during DNA replication, mutagenic factors...
A: Down syndrome result it due to extra copy of 21 chromosome ( trisomy 21) . This is due to Disjunctio...
Q: 10. A scientist working in a research aboratory has been examining different agonists of serotonin r...
A: The correct option is B
Q: Vitiligo is a disorder in which melanocytes (cells that produce melanin pigment) are unable to funct...
A: In a purebred, the organism will breed true for the breed relevant traits. i.e., homozygous genotype...
Q: Find the hash mark indicating the origin of jaws. Which group or groups of vertebrates possess jaws?...
A: Vertebrates are the chordates that have a vertebral column.
Q: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two pe...
A: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two pe...
Q: Identify the part in a flowering plant and write whether it is haploid (n) or diploid (2n). Ovary
A: Flowering plants Highly modified shoot meant for sexual reproduction in plants.
Q: Surgery remains a mainstay in the treatment of many forms of cancer, but it is no longer used in dia...
A: The statement is False.
Q: Homeostasis has been characterized by all living organisms, which is essential for survival. Which o...
A: When an object consists of cells, responds to the environment, grows and develops, produces offsprin...
Q: Why is the CRISPR-Cas system of bacteria considered an adaptiveimmunity rather than an innate immuni...
A: CRISPR is the clustered, regularly interspaced, short, palindromic repeats.
Q: discuss how pre mRNA is formed in the nucleus and the RNA processing that happen to form a matured R...
A: When an RNA transcript is first made in a eukaryotic cellular, it's far taken into consideration a p...
Q: Myosin binds to actin, then bends. What is ATP needed for next? A. to pump the Ca++ “keys” back into...
A: D option is the correct statement.
Q: One plant may contain hundreds of individual seeds, each resulting from a separate fertilization eve...
A: Let's say gene controlling seed color has 'B' and 'b' alleles. 'B' is the dominant allele for black ...
Q: What is the role of Msx gene family in the development of the Neural crest and neural connectivity?
A: Msx proteins play a key role in craniofacial, limb, and nervous system development. In vitro and in ...
Q: 2. Deletion: ATG
A:
Q: A number of retroviruses can infect certain human cells. List two of them, briefly describe the medi...
A: ANSWER: Retroviruses- A type of viruses that have RNA as their genetic material in place of DNA. Suc...
Q: Vitiligo is a disorder in which melanocytes (cells that produce melanin pigment) are unable to funct...
A: Given information Vitiligo- dysfunctional melanocytes, causes white patches on the skin. Albinism -...
Q: 5'- CTC GAG CGA AG was obtained as a dry solid. The sample was dissolved in 1000 ul of deionized wat...
A: Concentration of DNA = 50 × dilution factor × absorbance (ug per mL)
Q: This graph shows the relative voltage of a neuron's cytoplasm near the plasma membrane relative to t...
A: * There are three stages in membrane potential Depolarization Repolarization Hyperpolarisation ...
Q: O The lac operon in E.coli encodes enzymes necessary for the breakdown of lactose. For each enzyme (...
A: There are two type of lac operon mutation, constitutive and uninducible lac mutation. LacI- mutants(...
Q: What role does complementary base pairing play in the replication of DNA?
A: Complementary base pair is a concept where in DNA, adenine(A) always binds to the thymine(T), and g...
Q: Epithelium–Mesenchyme transitions (MET or EMT) are crucial morphogenetic events occurring during gas...
A: An epithelial-mesenchymal transition (EMT) is a biological process in which a polarised epithelial c...
Q: If nondisjunction occurs in a chromosome pair, what will be its effect on the gametes and the offspr...
A: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to divide properly (mito...
Q: Write your answers on your paper. 1. In Drosophila flies, eye color is sex-linked. The allele for re...
A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous chrom...
Q: Using the Dihybrid Cross, Give the Total Number and Types of Gametes formed of MmNnOoPPQQRrssTtQq. ...
A: Dihybrid cross is the cross between 2 individuals who differ in two traits observed by 2 distinct ge...
Q: tend to occupy the base of food webs. a. mediatrophs O b. trophytrophs С. heterotrophs O d. autotrop...
A: Option D i.e. autotrophs are the base of food web.
Q: why anaphase I is important?
A: Anaphase1 is the third stage during meiosis 1 after the completion prophase1 and metaphase1 . Thi...
Q: Which is true? * the different skin colors signifies multiple alleles * creeper gene in chickens a...
A: Mendelian inheritance refers to patterns of inheritance that are characteristic of organisms that re...
Q: Fill in the cells below showing the process of meiosis of the male's sex chromosomes with non- disju...
A: Meiosis is a process by which one diploid (2n) cell undergoes cell division and produces four haploi...
Q: Describe the effect of the amino acid change on protein function: how does the HbS protein function ...
A: Proteins are the polymers of amino acids. These amino acids are linked together by peptide bond. Now...
Q: which of the following functional groups is not chemically reactive and affects the expression of ge...
A: Methyl group is a functional groupwhich consists of one carbon bonded to three hydrogen atoms by sin...
Q: How is an extracellular signal converted to an intracellular signal in signal transduction? Give a s...
A: Signal transduction is a process in cell signaling.
Q: Histopathology-Tissue Processing MOUNTING AND DRYING OF SECTION 1. What is the deference between Aqu...
A: Answer
Step by step
Solved in 2 steps
- The figure below shows the interaction between predator abundance and prey abundance. Populations of lynx and hares are located at the purple square. Based on the Lotka- Volterra predator-prey model, we would expect the number of prey to and the number of predators to P isocline N isocline Prey abundance (N) A. increase; increase B. increase; decrease C. decrease; decrease D. decrease; increase E. decrease; stay the same Predator abundance (P) ELEThink about a predator-prey system that perfectly follows Lotka-Volterra dynamics. The search efficiency parameter (a) represents how quickly the predator finds and kills its prey. What would happen if most the predator population had a parasite that made them less effective predators? Infected animals find and kill prey less frequently (that is, the parasite caused the value of the search efficiency parameter to decline). the populations would still cycle; the amplitude of prey and predator would increase Othe populations would no longer cycle; the prey would increase and the predator would go extinct the populations would no longer cycle; the prey would go extinct and the predator would increase the populations would still cycle; the amplitude of prey and predator would decline the predator and prey populations would no longer cycle; the parasite and the predator populations would cycle insteadThe relationship between predator and prey populations has been studied by computer simulation using equations which form part of a mathematical model devised by Lotka and Volterra. The data in Table 6.10 show the results of such a simulation when the prey population begins with 20 individuals and the predator population begins with six individuals. 1.Explain why the peaks in the predator population occur after those in the prey population. 2. This simulation assumes one prey species and one predator species in an imaginary ecosystem and is based on mathematical equations. Why is it likely to be too simplistic to describe accurately what happens in nature?
- Which of the following best describes the numbers of two interaction species shown in the plot below. 180 160 140 120 100 AMA 40 20 1845 1865 1875 1885 1905 1915 1925 1935 Year A. The cycles of two species shown here is evidence of predator-prey interactions, with blue being the predator and orange being the prey. B. The cycles of two species shown here is evidence of predator-prey interactions, with blue being the prey and orange being the predator. C. They cycles of the two species shown here is evidence of competitive exclusion. D. The cycles of two species shown here is evidence of amensalism. E. The cycles of two species shown here is evidence of mutualism.Your textbook uses this graph as evidence for human hunting driving early exctinctions. Highlight this evidence by interpreting the important information on the graph. Start by accurately describing the way the graph looks, then identifying and describing important numbers and trends. When discussing numbers and trends, use the units and information found on the x and y axis. Finish with a conclusion. What does it tell us about prey switching and impacts of predation on biodiversity? Partridges and other small birds Hares and other small mammals Tortoises and shellfishIn the Seychelles warbler, territorial behavior encourages a pattern. population dispersion pattern, and cooperative breeding encourages a - population dispersion O A. clumped; clumped B. clumped; regular O C. regular; clumped O D. regular; regular E. no clear pattern for either
- This graph shows the relationship between the number of individuals in a minnow school and how often a predator approaches. This graph would support which of the following hypotheses? Predator approaches per minute 1.0- 0.8- 0.6- 0.4- 0.2- 0 5 10 15 20 Minnow school size There is no fitness benefit for a minnow to live in a large group O Individuals living in a small group are more likely to be attacked by a predator O Individuals living in a large group are less likely to be attacked by a predatorD QUESTION 2 OF 10 140 FREQUENCY 120 100 80 60 40 20 0 1 3 5 7 9 11 LITTER SIZE 13 15 Which of the following best describes the reproductive strategy of the species represented by the data above? Choose only ONE best answer. C B A An r-selected species that reproduces frequently and provides little parental care A large K-selected species that expends a large amount of energy defending offspring from predators An r-selected species that typically have one reproductive event in their lifespan A small K-selected species that provide parental care to offspring, primarily in the form of food and body heatWith respect to the Lotka-Volterra predator-prey model, which of the following statements is most likely true? Under this model, it is possible for a predator to drive its prey to extinction. All of the statements are true. Non of the statements is true. This model predicts neutrally-stable predator-prey cycles, as opposed to a stable equilibrium. O In this model, an increase in searching efficiency (a) will increase the maximum prey population.
- Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.An unpalatable species demonstrates its threat to potential predators by displaying (a) character displacement (b) limiting resources (c) cryptic coloration (d) aposematic coloration (e) competitive exclusionb. The graph below shows the population size changes of two animals over an 90-year span. Study the graph and then answer the questions which follow: Hare-Lynx Data 180 160 140 120 100 Hare 80 Lynx 60 40 20 1845 1855 1865 1875 1885 1895 1905 1915 1925 1935 Year a. In what year was the prey population at its highest? b. i. What was the carrying capacity of the habitat for the predator population in 1855? ii. Compare the carrying capacities for both populations and explain why there is a difference. c. Suggest one factor, other than the presence of prey, that may afieot the size of the predator population. d. The graph shows a predator-prey relationship that is based th a temperate climate. Identify one such relationship that exists: i. On a coral reef: ii. In a Barbadian garden: (spuesnoup ui) JaqunN