(d) Given below is an apparatus used to study a particular process in plants. Study the same and answer the questions that follow: Leafy Reservoir shoot Air bubble Graduated capillary tube Coloured water (i) Name the apparatus. (ii) Mention one limitation of this apparatus. (iii) Which phenomenon is studied with the help of this apparatus ? (iv) What is the function of the part marked 'reservoir' ? (v) What is the role of the air bubble in the experiment ?
Q: QUESTION 1 Growth factors: are produced by the posterior pituitary stimulate bone and cartilage grow...
A: Growth factors: it is usually proteins in nature. These natural compounds play important role in cel...
Q: MATCHING TYPE : (Match A to B) A; A. Mitosis- Metaphase B. Mitosis - Prophase C. Meiosis-Prophase...
A: Mitosis It is the division of chromosomes in a cell. Usually followed by cytokinesis or cell divisi...
Q: Which of the following statements is TRUE about the factors that shape regional climates? can choos...
A: Factors that modify regional climate The climate of any particular place is influenced by a host of ...
Q: What limits the length of food chains? can choose more than one answer Group of answer choices The...
A: * Food chain ain is the network of links in a food web from producers to higher consumers and then...
Q: Which of the following can be used to describe both desmosomes and adherens junctions? Select all th...
A: The selective cell to cell attachment is mediated by different types of addition molecules that also...
Q: If you were to eat 200 kcalories more than you expended in a day, and those 200 extra kcalories came...
A: Proteins are made up of amino acids bounded together by peptide bonds. Total 20 amino acids are pres...
Q: What are the main cells that compose poriferans?
A: Phylum porifera contains unique animals called sponges. They are termed as sessile metazoans as they...
Q: How does a large amount of salt in the diet lead to an increase in blood pressure?
A: The force of blood pushing against the artery walls is referred to as blood pressure. Blood is pumpe...
Q: Acrocanthosaurus what is physical description compare to tyrannosaur rex differences of shape, size ...
A: Acrocanthosaurus In Greek this means "high-spined lizard". It was a very large theropod which belong...
Q: n what ways did you find the population simulator helpful/not helpful? Give two reasons.
A: Simulator is a device or program i.e designed to imitate the real sequences that are likely to occur...
Q: Determine what amino acid will be formed from the given DNA strand below:
A: DNA replication is the process by the DNA is copied from a template strand into a new strand. The pr...
Q: If there are two alleles, A and a, in a population and the population is at Hardy–Weinberg equilibri...
A: Answer=0.5 frequency of A would produce the greatest frequency of heterozygotes. Hardy and Weinberg ...
Q: A plate has 72 colonies with a total dilution factor of 10-7, 0.1 ml was pipetted onto the plate, wh...
A: Colony forming unit (CFU) is a unit that tells us the amount of viable cells present in the given sa...
Q: random formation of haplotypes from alleles based on their frequencies. b. Statement 1, 2, and 3 c...
A: Various chances of increase in population In breeding results in homozygosity, which can increase th...
Q: If you are a strong taster, how many bands would you expect on the gel after electrophroesis? O1 O 2...
A: Electrophoresis It is defined as the method through which DNA, RNA, or protein is separated on the b...
Q: 1. When can a mutation on the DNA cause shortening of the translation product? Give a specific examp...
A: A single nucleotide or nucleic acid can be affected by a point mutation. When one base is replaced f...
Q: Given this cross: Yy RR Bb SS LI (male) cross with yy RR Bb Ss LI (female) a. How many different gam...
A: as per our company guidelines we are supposed to answer only first 1 questions Kindly repost other ...
Q: 13 10 13, ATLAS (caudal view) AXIS (left side) 16 CERVICAL (caudal view)
A: * Turtles reptiles also known as Testudines. *A shell is formed from their ribs. *turtles are divide...
Q: Why are EMBRYOS so useful when comparing phylogenic relationships?
A: The majority of these similarities occur during embryonic development. Pharyngeal slits, which devel...
Q: What is the greatest cause for threatened species?
A: One of the major cause of the threatened species os the loss of habitat. Destruction of Habitat is ...
Q: Question 5 Voles and lemming are found throughout the Arctic. Which of the following statements is c...
A: Voles and lemmings These are widely spread across the Holarctic. They are located in temperate North...
Q: Dinosaurs that lived with tyrannosaur rex what were their? Like any duck bills, hardosaur, sauropods...
A: Tyrannosaurus Rex or T. Rex are carnivorous dinosaur species that were found to have been lived in t...
Q: Discuss about the use of genetically modified milk from animals for human baby consumption. Are you ...
A: In today's generation the growth and immunity system is greatly effected from environmental conditio...
Q: Some animals, such as penguins, huddle together in groups to stay warm. This is an example of which ...
A: Certain animals get into certain adaptations to keep themselves protected from natural processes as ...
Q: Define the term ecosystem services. Give three examples of ecosystem services that people would have...
A: A dynamic community that contains a set of physical, chemical, and biological variables in a specifi...
Q: Determine what amino acid will be formed from the given DNA strand below: ...
A: Transcription Formation of RNA over DNA template is called transcription. Out of 2 strand of DNA on...
Q: QUESTION 3 Testosterone can affect the cells that synthesize it in the testis, neighboring cells, an...
A: Testosterone: Males' principal sex hormone and anabolic steroid is testosterone. In humans, testost...
Q: How is sympatric speciation different from allopatric speciation? Group of answer choices Allopatric...
A: Q. How is sympatric speciation different from allopatric speciation? Group of answer choices 1. Allo...
Q: a. What can you observe in viewing your stained bacterial slide under the microscope if you fixed a ...
A: The staining is a very important process in microbiology that is used to identify specific microorga...
Q: What is the phenomenon of apical dominance in plants? How can it be artificially eliminated?
A: Introduction In this question we have to discuss about the phenomenon of apical dominance in plant a...
Q: A woman will give birth to a triplets without knowing the gender. What is the probability of having ...
A: A multiple pregnancy occurs when you are pregnant with more than one child at the same time. Twins a...
Q: Match the terms with the best description.___ dihybrid cross a. bb___ monohybrid ...
A: Mendel worked on seven contrasting characters in the pea plant. Based on his findings he postulated...
Q: Explain the notion of community-based conservation. Why have conservation advocates been turning to ...
A: Community-based conservation is a broad balanced approach to biodiversity protection: It is a kind o...
Q: An ade+ arg+ cys+ his+ leu+ pro+ bacterial strain is knownto be lysogenic for a newly discovered pha...
A: Gram staining is named after its creator, Danish bacteriologist Hans Christian Gram. His method of s...
Q: please help with these two questions: 1.De novo gene expression is concentrated in the colon a.Tru...
A: Infanticide Infanticide is the killing of newborn.
Q: The DNA sequence ATGCATGC will pair with which of the following DNA strands? TACGTACG TACCTACC CGTAC...
A: DNA, or deoxyribonucleic acid, is the hereditary material in humans and virtually all other creature...
Q: Which of the following are characteristics of both actin filaments and microtubules? Select all that...
A: Actin filaments and tubulins are the subunits of microfilaments and microtubules respectively. They ...
Q: How are male gametophytes and male gametes formed in angiosperms?
A: Introduction In this question we will write how male and female gametes are formed in angiosperms.
Q: ria reproduce b
A:
Q: If your body was transmitting a signal between hemispheres of the brain, the signal would travel O a...
A: If your body was transmitting a signal between hemispheres of the brain, the signal would travel A. ...
Q: What are twins? Genetically, what are the two types of twins that can occur?
A: The process of combining male gamete (sperm) and the female gamete (ovum) is called fertilization. T...
Q: can select more than one answer
A: In biology, a species is a categorization of related organisms that have similar features and are po...
Q: Question 2 Why do small Arctic mammals enter hibernation whereas larger mammals stay active during t...
A: Hibernation is defined as the process in which the animal decreases it's metabolic rate, energy cons...
Q: Give TWO advantages and TWO disadvantages of non-compartment models.
A: A non-compartmental model considers an organism to have only one homogeneous compartment.The concent...
Q: Direction: Complete the Venn Diagram. In the outer circles, write the difference between negative an...
A: Negative feedback: A control system that helps the body maintain homeostasis by sending a signal to...
Q: Question 2 Why do small Arctic mammals enter hibernation whereas larger mammals stay active during t...
A: Introduction:- During the winter, many animals stay inactive for varied periods of time, and a varie...
Q: As described by the Optimal Foraging Theory, and animals feeding behavior should maximize ________ a...
A: the Optimal Foraging Theory, and animals feeding behavior should maximize energy obtained and minimi...
Q: Do the mother and the fetus exchange cells through the placenta?
A: Introduction In this question we we will discuss whether the mother and the fetus exchange cells thr...
Q: 1. A population graph with inverted pyramid means A. More children than adults B. More adults than c...
A: Population pyramid represents the population by gender and age at a given point in time. It shows to...
Q: summarize basic information with photos: Family name, scientific name, common name, hosts/damage, li...
A: The eastern spruce budworm is a species of moth. It causes severe damage to some trees. Spruce budwo...
Step by step
Solved in 2 steps
- Design and describe an experiment using celery stalks to demonstrate how certain conditions will cause aloss or gain of turgor pressure. In order to follow the scientific method, your description should start with anobservation and be followed by (i) a testable hypothesis, (ii) an outline of the experiment that will test thehypothesis, (iii) a description of the type of data that will be collected, and (iv) a possible conclusion that couldlikely be made after completing the experiment and analyzing the data.What is capillarity? How isthis phenomenon chemicallyexplained? What is therelevance of capillarity forwater transport in plants?(i) what are the juvinile hormoes that soluble in water. (ii) Explain the process of extraction of echinolone from echinacea plant (not about the cultivation and harvesting of echinacea) by using biological mechanisms. (iii) Is Echinolone water soluble. if yes, or No why.
- You are a PhD student interested in studying the effects of hypoxia on the behavior of mesenchymal stemcells. You want to culture cells in a hypoxic environment. You decide to use a tri-gas incubator, which allowsfor precise control of the oxygen tension, as well as the partial pressures of nitrogen and carbon dioxide inthe cell culture system.A tri-gas incubator is a type of cell culture system that allows for the control of the three main gasesin the culture environment: oxygen, carbon dioxide, and nitrogen. The oxygen tension and carbon diox-ide tension in the culture environment can be controlled by adjusting the percentages of these gases in thegas mixture that is supplied to the incubator. Hint: To calculate the partial pressure of nitrogen, you can use pN2= pTotal −pO2−pCO2 Part 1.3Calculate the partial pressure of nitrogen (in mmHg) that would be required. Part 1.4In planning for this experiment, you have to order gas cylinders ahead of time. Which cylinder should youorder the…6. Tim is observing xylem vessel elements under the microscope. He initially used the low power objective (LPO) to search for the vessel elements formed in his specimen (Fig.3 A), he. He then wanted to see the vessel elements in greater detail, so he used the high power objective (HPO). Although he didn't have any trouble in resolving the vessel elements using the HPO he wanted to try using the oil immersion objective (OI0). He noticed that he needed to use the fine adjustment knob to focus at two different groups of vessel elements one at a time (Fig. 5 B and C). He also noted that he cannot completely resolve the specimen under the O10 when it should appear clearer as shown by his instructor previously. A B Figure 5. Vessel elements developed from cassava pith in response to synthetic plant hormones under LPO (A) and O10 (B and C). a. Explain why Tim can only focus on one group of vessel elements at a time when he used the O10. (Explain in 2 sentences max) b. Give a reason why Tim…presence of these organelles in striated muscle cells. 19. A pupil set up the following experiment to investigate an aspect of germination: an Flask A Flask B Vacuum flasks Boiled Loow Jed seeds Serminating seeds Wet cotton wol Thermometer. (b) State a possible aim of this experiment.
- The speed of water permeability from the lower parts of Mimosa plant in the case of touch ...... the two states of sleep and wakefulness.A) Faster thanB) Slower thanC) EqualsD) There is no correct answerThis mule deer is grazing on the shoot tips ofa shrub. Describe howthis event will alter thephysiology, biochemistry, structure, andhealth of the plant,and identify whichhormones and otherchemicals are involvedin making thesechanges. Based on the data in the scatter plot, estimate the percentagechange in dry mass of corn and velvetleaf plants if atmosphericCO2 concentration increased from 390 ppm (current levels)to 800 ppm. (a) What is the estimated dry mass of corn andvelvetleaf plants at 390 ppm? 800 ppm? (b) To calculate thepercentage change in mass for each plant, subtract the massat 390 ppm from the mass at 800 ppm (change in mass), divideby the mass at 390 ppm (initial mass), and multiply by 100. Whatis the estimated percentage change in dry mass for corn? Forvelvetleaf? (c) Do these results support the conclusion fromother experiments that C3 plants grow better than C4 plantsunder increased CO2 concentration? Why or why not?
- Name the outward pressure exerted on the cell walls by the fluid contents of a fully turgid cell.Consider three groups of solutes: (i) steroid hormones, fatty acids,and other lipids; (ii) inorganic ions; and (iii) polar organic solutessuch as glucose and amino acids. What is the principal mechanismby which each group crosses cell membranes passively? Why domembers of the first group cross in a fundamentally different wayfrom solutes belonging to the other two groups?25. For a Paramecium shifted from from a hypo-osmotic to an iso-osmotic environment, you would expect the activity of its contractile vacuole to .... a) increase. b) decrease. c) remain unchanged.