Concept explainers
To analyze:
Based on the researcher’s result, the correctness of the hypothesis and explain the rationale behind it.
Introduction:
A beehive consists of three different types of bees, namely, a queen bee, male drones, and infertile female workers. Pheromones are the chemical substances, which are released by certain animals into the environment, which affects the activity of other animals. The pheromone produced by the queen bee is capable of attracting the worker and the drones, however, the growth of ovaries is retarded in the worker bees. In order to test the hypothesis, the researcher exposed the worker bees to the chemically synthesized pheromones.
The ovary development score for worker bees was recorded in this study. In the graph shown below, the higher score indicates for the full development of ovaries. Furthermore, *** signifies for the value of probability less than 0.001.
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Chapter 44 Solutions
Biological Science (7th Edition)
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- The change of successful fertilization is approximately 18% in every cycle. Why does this statistic seem so low? All of the following statements provide a reason as to why the chance of fertilization is 18% every ovarian cycle EXEPT Select one: A. Some Sperm cells are not very motile, while others are formed without a tail. B. If more than one sperm fertilizes an egg, multiple embryos can result. C. Vagina is very acidic, killing many sperm. D. There two fallopian tubes and two ovaries, but only one of them releases an ovum every cycle.arrow_forwardHow would mutations that completely ablate the function of the androgen receptor impact the phenotypic development of humans with XY chromosomes? a. Patients would appear phenotypically female. b. Patients would appear phenotypically male with underdeveloped secondary sex characteristics. c. Patients would appear phenotypically male, but cannot produce sperm. d. Patients would express both male and female secondary sex characteristics.arrow_forwardClownfish are protandrous hermaphrodites. Determine whether the following features are encoded by the clownfish genome or are influenced by the proteome in response to the environment. The juvenile clownfish has both male and female immature reproductive organs. Clownfish are able to produce both testosterone and 17-estradiol. Genome encoded Increased estradiol levels lead to increased levels of proteins that promote the growth of female sex organs. Increased testosterone levels lead to increased - levels of proteins that cause male sex organs to develop Proteome influencedarrow_forward
- Egg laying in fruit flies can be triggered (induced) when males transfer their sperm to females. Which of the following is a selective advantage of induced egg laying for the male flies? Less time and energy is expended by the male. The males do not have to produce as much sperm. More eggs can be fertilized. A male fly's sperm is more likely to be used for fertilization. Submit Request Answerarrow_forwardDiscuss how and why the queen honey bee aborts the worker bees' sexual maturation.arrow_forwardThe experiment in which a second Zone of Polarizing Activity (ZPA) was transplanted to the anterior edge of the wing bud demonstrated which important concept? Group of answer choices A. the importance of hox genes in setting up body axes B. the action of hox genes in setting up body regions C. the importance of hormones in providing positional information D. the importance of morphogens in providing positional information E. the importance of gastrulation in setting up the body planarrow_forward
- In vitro fertilization (IVF) is a common assistive reproductive technology for couples who are struggling to conceive naturally; however, the success rate of IVF is, at best, about 55%. Researchers seeking to improve the success of IVF need to observe the interaction between sperm and eggs in order to better understand the factors that favour fertilization. Obviously, larger sperm and eggs would be easier to observe, even with the aid of microscopy. On this basis, which of the following vertebrate groups might be a good model for studying IVF because they are likely contain species with large sperm and eggs? Group of answer choices a) fish b) amphibians c) reptiles d) birds e) mammalsarrow_forwardIn eusocial insect societies, explain why sterile workers spend their lives providing for their queen and sisters using Hamilton's rule. (Hello, Please write ur answer in ur own s-ntences, if you can please write your answer to a word document and screen shoot the answer and attach the image here. Please do not plagiarise or I have to give thumbs down. Thank you have a nice day.)arrow_forwardTemperature-dependent sex determination (TSD) is the method of sex determination in sea turtles. In TSD, temperature experienced during embryonic development determines the sex of the offspring. TSD is only observed in reptiles and teleost fish. The molecular mechanisms are not well understood, but the production of estrogen, which causes female development, seems to be critical. A potential pathway is shown in Figure 1.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
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