BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 40.3, Problem 1CS
Summary Introduction
To determine: The way by which pollen tube of plants acts like a human penis.
Introduction: A flower contains four whorls: sepals, petals, androecium and gynoecium. The female reproductive part is represented by Gynoecium or pistil. The structure of pistil is differentiated into three parts: stigma, style, and ovary.
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You are assessing physical maturation of a newborn male. The following result (testes in upper canal with rare rugae, slightly curved pinna; smooth, and slow recoil, stippled areola 1-2 mm bud, anterior transverse crease only. abundant lanugo and gelatinous and translucent skin) will give you a score of?
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Direction: Explain the following in paragraph form consists of at least five sentences for each question.
1.What might be a disadvantage to temperature-dependent sex determination?
2.Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to hermaphroditism?
Objective: Describe the feedback mechanisms involved in regulating processes in the female reproductive system. Materials: • copy of unsequenced events in menstrual cycle. • Pencil and paper Procedure: 1. Study the numbered diagrams/pictures of unsequenced events in menstrual cycle below. SEE FIGURE 1 2. Use a separate paper and copy the table below as guide in arranging the events based on its correct sequence. Write the NUMBER ONLY of the diagrams/pictures based on its corresponding stages/ events. SEE FIGURE 2
Chapter 40 Solutions
BIOLOGY
Ch. 40.1 - Core Skill: Connections Look back to Figure 32.14...Ch. 40.1 - Prob. 1CCCh. 40.1 - Prob. 2CCCh. 40.2 - What inference can you draw from the observation...Ch. 40.2 - List several ways in which the flowers at the rim...Ch. 40.2 - Why do you think Liang and Mahadevan used Lilium...Ch. 40.2 - How did time-lapse video improve data gathering in...Ch. 40.3 - Prob. 1CCCh. 40.3 - Prob. 2CCCh. 40.3 - Prob. 1CS
Ch. 40.4 - Prob. 1CCCh. 40.4 - Prob. 2CCCh. 40.4 - Prob. 1CSCh. 40 - Where do the pollen grains of flowering plants...Ch. 40 - Prob. 2TYCh. 40 - Where would you find female gametophytes of a...Ch. 40 - How does double fertilization occur in flowering...Ch. 40 - Prob. 5TYCh. 40 - Prob. 6TYCh. 40 - Prob. 7TYCh. 40 - If an ovary contains eight ovules, how many seeds...Ch. 40 - Prob. 9TYCh. 40 - Prob. 10TYCh. 40 - Prob. 1CQCh. 40 - Prob. 2CQCh. 40 - Prob. 3CQCh. 40 - Prob. 1COQCh. 40 - How do plants prevent the production of many...
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- TOPIC: "Frog Urogenital System" 1. Describe how urine is formed and excreted in frogs. (Please include the structures involved in the process.) 2. Describe the step-by-step fertilization process in an amphibian. (Please include the structures involved in the process.)arrow_forwardREPRODUCTIVE ANATOMY Exercise 15 Label, Color, and Discuss an Avian Reproduction System Using colored pencils, label and shade in the following structures: ovary, infundibulum, magnum, isthmus, uterus, and vagina.arrow_forwardrom the bOX below. ovaries testes seminal vesicles cloaca ovarian tubes spermatheca oviducts ovarioles sperm ducts spermatophore The internal reproductive system of female insects.consists of pair of (1)_ the lateral and median oviducts (through which the eggs pass to the outside), a (2) genital chamber (which is where fertilization generally occurs), and the accessory glands. Each ovary consists of a cluster of (3) ovarioles. The (4) be pass into the lateral oviduct upon maturation. The male reproductive system consists of a pair of (5). sperm tubes in which the spermatozoa are produce. Mature sperm passed through the (6)_ paired accessory glands may serve a variety of functions in male insects. Secretions from these glands may surround the spermatozoa to form a (7) (which stores sperm until they are needed for fertilization), a known as the contain a series of developing eggs, which will each of which contained a series of and out of the insect through the ejaculatory duct. The or…arrow_forward
- Rat Testis at 10x under microscope -Basement membrane / basal lamina (same thing) -Sertoli celland nucleus -Spermatogonia -Spermatocytes (primary or secondary) - Spermatids - Spermatozoa (nuclei and tails) - Blood vessel - Seminiferous tubule - Tubule lumen label the structures listed above are present on your photos (if they’re not present, no need to).arrow_forward12 Activity 1 Directions: Using the following list, write the correct part of the female reproductive system with their function. Write your answers on your paper. Answers Only ovaries uterine lining vagina cervix vulva uterus fallopian tube endometrium Female Reproductive System Organ Function 1. The tubes that carry an egg from the ovary to the uterus Hollow, muscular tube that leads to the opening called 2. vulva Organs where all a female's egg cells are stored Is where the unborn baby is developed 3. 4. 5. Narrow opening between the uterus and vaginaarrow_forwardTOPIC: “Human Reproductive System” Explain how the female hormones GnRH, FSH, LH, and estrogen interact during the menstrual cycle to induce ovulation and, subsequently, the formation of the corpus luteum.arrow_forward
- ACTIVITY 1 Fill in the blanks. Read carefully and choose your answer inside the box. Fertilization Zygote Haploid puberty testes sperm 1°C to 3C Seminiferous Tubules scrotum Meiosis Male Reproductive .System Testes: The sites of iperm Reproduction In sexual reproduction, the diploid fusion of the male (sperm cell) and female (egg cell) sex cells, which are both 2) from the 3). What, then, 1) is formed through are the specific functions of the human male reproductivesystem? This organ system produces sperm cells (male gamete:) and delivers them inside the female reproductive system. In males, the primary 4) (singular, testis) reproductive organs are the The testes are oval shaped organs found inside a protective sac of skin called the 5). The location of the testes in the scrotum, which is outside the body, is very important for the proper 6). Since the scrotum lies outside the abdomisal cavity, its temperature 7) lower than the internal body temperature (3rC), making it deel for sperm…arrow_forwardScience: Repro system-female Based on the given graph: Topic: Menstruation Cycle 1. What is the body temperature difference of the follicular phase compared to the luteal phase? 2. Which hormone is at its peak during ovulation?arrow_forwardselect ALL that are TRUE about sperm:☑️Meiosis is suspended twice in sperm development; meiosis of sperm is completed when the sperm penetrates an egg ☑️Both the activity of sperm flagella, and the contraction of uterine muscles, are required to propel sperm to the egg in a timely fashion ☑️Each of the four sperm formed by one meiotic event is genetically unique and haploid ☑️ Sperm secrete testosterone which stimulates sustentacular cells to help their development\arrow_forward
- TOPIC: "Human Reproductive System" Identify, in order and detail, the structures a sperm cell must pass through as it leaves the testis. Describe each structure.arrow_forwardDirections: Arange in correct order the development of human embryo from fertilization until birth. Write the number from 1 to 6 in the box provided. Blastocyst continues its journey down the fallopian tube until it reaches the uterus for implantation. The union of the sperm and the egg cell forming a zygote. Embryo begins to differentiate. The zygote travels down the fallopian tube while undergoing several mitotic divisions. When an embryo reaches the 8th week until birth, it is now referred to as a fetus where it remains in the mother's womb. The blastocyst cells form an inner and outer cell layer of the embryo and will later on develop other structure like the placenta. The formation of different cell layers (gastrulation).arrow_forwardDirection: Explain the following in paragraph form consists of at least five sentences for each question. Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to hermaphroditism?arrow_forward
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