Q: What term did Darwin use to explain how new species emerged
A: INTRODUCTION Natural selection This is a process by which a population of organism adapt to a new…
Q: Match the following descriptions to the given choices. The first molecule in the biosynthesis of…
A: A hormone is a class of signaling molecules in organisms that play a important role in body.
Q: Develop a model for the flow rate (amount per unit time) of blood through a given blood vessel.…
A: Factors That Affect Rate There are four main factors that can affect the reaction rate of a chemical…
Q: 5- a sample of a crude protein extract is obtained from a prostate cancer tissue read 0.98 at 280 nm…
A: According to Christian and Warburg method, if the sample have the *presence of nucleic acid also,…
Q: Question:- If transmission rate is 0.7 and recovery rate is 0.3, what is the basic reproductive…
A: The expected number of cases directly generated by one case in a population where all individuals…
Q: COVID 19 - cause respiratory distress and/ or intestinal distress?
A: COVID-19 can result in lung problems such as pneumonia and, in extreme instances, acute respiratory…
Q: 1.Using the figure, explain how a countercurrent flow becomes more beneficial than a concurrent flow…
A: In order to understand respiratory gas exchange, we first need to know what gases are involved.…
Q: You are in charge of generating a scaffold for use in tissue engineering applications that behaves…
A: Scaffold for tissue engineering are the support structure designed to facilitate cellular growth and…
Q: Why do organisms with close biochemical similarities show stronger evolutionary relationships? *…
A: Earth is inhabited by a tremendous variety of life; more than 1 million species have been discovered…
Q: How can we take good care of our endocrine system?
A: The endocrine system is a communication system that regulates distant target organs through feedback…
Q: Define the term allele (try to put it in your own words if you can!). This would be a good time to…
A:
Q: What are the renal tubule and its function? 43 What are three ways fluid leaves the body? 44 What is…
A: INTRODUCTION:- Excretion is defined as the elimination of metabolic waste products…
Q: 2. Bees are attracted to the flower by its Sepals Petals 1- 2- Stigma 4- Stamen 3-
A: There are many part of the plant which human can't see with naked eyes but bees have ability to see…
Q: What are the factors effecting Earth Overshoot day? Briefly explain each factors.
A:
Q: | Many larvae of Cecidomyiidae feed within plant tissues, making galls. | Unlike most groups of…
A: Option a, b, d, and e are correct answer and option e is the Inccorect.
Q: Follow the path of codons to discover the peptide and unlock the Directional Multilock. (Hint: type…
A: Peptide formed from given mRNA sequences.
Q: Categorize the feedback mechanisms components below during BP regulation. stretch pressure receptor…
A: 1. Sensor 2 effector
Q: 15. Sticky structure where pollen enters the pistil 1- Style Stigma Anther 2- 3- Ovary 4-
A: Flowers are the reproductive portion of a plant. They are associated with reproduction, but at the…
Q: 1. If 2n = 22, how many in kinetochores in mitotic prophase? 2. If n = 23, how many chromosomes in…
A: There are two types of cell division mitosis and meiosis. Most of the time and people referred to…
Q: f you are growing mammalian cells in culture that are in G0, which of the following would you add to…
A: Go phase is the resting phase where cell division or growth cycle is completely arrested.
Q: Question 14 Which of the following is a monounsatu O Arachidic acid O Linoleic acid O Oleic acid…
A: Fatty acid- The building blocks of the fat in our bodies and in the food we eat is known as the…
Q: Mammals are the most successful & dominant animals today" Give evidence.
A: Mammals Mammals are the vertebrate animals that have mammary glands.
Q: What is reproductive system
A: Reproductive system involves the tissues, glands, as well as the organs that are involved in…
Q: Community 1 is formed of species A, B, C, D, and E. Community 2 is formed of species A, C, F, G, H.…
A: Community 1 is formed of species A, B, C, D, and E. Community 2 is formed of species A, C, F, G, H.
Q: A population of 40 asters segregating at two loci with two alleles each (A/T and G/C) has 8…
A: Here we calculate the coefficient of gametic disequilibrium, D and value of Lewontin's D'. Given…
Q: 31. Which of the following is NOT true about Connell's study on barnacles Balanus balanoides and…
A: Connell's study on barnacles species.
Q: What are Chargaff’s rules? (in DNA and RNA model
A: DNA: DNA is a polymer made up of two polynucleotide chains that coil around each other to form a…
Q: Which of the following is the primary difference between mitosis and meiosis? A. Meiosis occurs…
A: INTRODUCTION Mitosis Here cell divides into two daughter cells which are genetically identical to…
Q: Which of the following is the primary method by which cyclin proteins are regulated to influence…
A: This question is based on the functioning of cell cycle and cell check points.
Q: ) How is most of the mass lost of the food we absorb into the internal environment? Group of answer…
A:
Q: Describe in detail the processes of transpiration and water uptake in a plant
A: Large amount of water is continuously absorbed from the soil and moved during the plant during its…
Q: Phage T2 is estimated to consist of about 200,000 deoxyribonucleotides pairs. Give the length in…
A: A deoxyribonucleotide is a nucleotide that contains deoxyribose. The four common…
Q: Cite two examples of hermaphrodites and their means of preventing self-fertilization.
A: It is critical to learn and know the anatomy and physiology of the body. Many changes in the animal…
Q: Why is it important to keep the culture at the correct incubation temperature when measuring the…
A: It has been examined that different type of bacteria have a tendency to grow at a very different…
Q: Describe the sub-aerial modifications of the stem.
A: The primary function of sub-aerial stem modification is to aid in the propagation of vegetative…
Q: explain the difference between anaphase in mitosis and anaphase (1 and 2) in meiosis.
A: Mitotic cell division is a process where cell divided into two with same or equal number of…
Q: What is the mechanism by which microtubules can rapidly shrink, or undergo "catastrophe"? A At…
A: Microtubules, along with microfilaments and intermediate fibers, structure the cell cytoskeleton.…
Q: 4. COVID-19 vaccines such as Moderna (MRNA-1273) and Pfizer (BNT16262) make use of MRNA that…
A: Vaccines These are the biological products that provide immunity against infectious diseases caused…
Q: Give four types of underground stem and give examples for each.
A: The underground stem, also called a subterranean stem, is a storage organ that allows plants to…
Q: How did the back mutation in hisG affect the protein produced by this gene?
A: Back mutation or backward mutation is a kind of mutation which leads to reversion of the mutated…
Q: The table shows concordance for height between monozygotic and dizygotic twin pairs from birth to…
A: A) The higher the concordance rate, the more similar pairs of persons are within a sample. When…
Q: 14 15 16+ 17
A: Answer 17-Superior vena cava 14 - Brachiocephalic trunk
Q: aerial modifications of the stem.
A: The stem is the ascending part of the plant bearing branches, leaves, flowers and…
Q: In contrast to the circulatory system the lymphatic system is an open network that moves the blood…
A: The lymphatic system is a network of tabular vessels or ducts and nodes through which lymph flows.…
Q: When 12 molecules of glucose enter glycolytic pathway, how much NADH molecules are prdouced?
A: Glycolysis is the process where one mole of glucose is oxidized into two moles of pyruvate and…
Q: Bacterial meningitis can be caused by a variety of bacteria. It's symptoms can include fever and…
A:
Q: How do various leaf modifications help plants?
A: Photosynthetic, transpirational, and respiratory functions are the three fundamental functions of…
Q: With regard to fluid movement between body fluid compartments, what effect does oral/parenteral…
A: There are few important terms : Osmosis : It is special case of diffusion that involves passive…
Q: Figure 3. This image corresponds to question 18. 18.b What is taking up the majority of the space in…
A: Cell It is the functional unit. An organism is composed of trillions of cells. A group of cells…
Q: Which positions in immunoglobulin G are likely to have the highest mutation rates? Select all…
A: In the structure of immunoglobulin G the region marked 1,2 and 6,7 are known are complementary…
Step by step
Solved in 2 steps
- Figure 43.15 Which of the following statements about hormone regulation of the female reproductive cycle is false? LH and FSH are produced in the pituitary, and estradiol and progesterone are produced in the ovaries. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. Both progesterone and estradiol are produced by the follicles. Secretion of GnRH by the hypothalamus is inhibited by low levels of estradiol but stimulated by high levels of estradiol.In the anterior pituitary region, do you see multiple cell types in each follicle or does each follicle contain a single cell type? How can you tell each cell type apart from one another? Hint: think about the names and staining.Part 1: The hormones listed below all play a key role in male reproduction: Follicle Stimulating Hormone (FSH) • Luteinising Hormone (LH) Testosterone Explain the function(s) of these hormones giving reference to: their origin (where they made and released from), their target (cell, tissue, or organ), their stimulatory effects, and where relevant, their inhibitory effects.
- Which of the following is true regarding LH signaling in men? O Stimulates leydig cells to produce testosterone O Stimulates the sertoli cells to increase spermatogenesis O Stimulates the leydig cells to produce inhibin OStimulates the granulosa cells to increase spermatogenesis Stimulates the theca cells to produce testosteroneWhat is LH? Which gland secretes it? Explain the target organs/cells of LH and its respective function in the female and male reproductive systemDiscuss the hypothalamic-pitiutary-ovarian and the physiologic basis for the interplay of the various hormones involved in the axis.
- Drag and drop each item to the correct position in the diagram. GnRH Anterior pituitary gland Maintains secondary sex characteristics Inhibin Zoom Testis Testosterone Hypothalamus Reset Inhibition Inhibition Anterior pituitary gland LH () Leydig cells (-) Hypothalamus GnRH Testis Inhibition Inhibition - FSH Sertoli cells Spermatogenesis 4Reproductive Hormones Reproductive Structures 1. FSH 6. Follicle 2. LH 7. Corpus luteum 3. Estrogen 8. Hypothalamus 4. Progesterone 9. Anterior pituitary 5. GNRH Gonadotropic hormones are released by the anterior pituitary to regulate the functions of the gonads (testis in males and ovaries in females). Use the list and select: a gonadotropic hormone the structure it stimulates in the ovaries the main hormone that is released as a result Record your answer as a three-digit number in the following order: Gonadotropic The structure The main hormone it acts on hormone releasedLuteinizing hormone (LH) and follicle stimulating hormone (FSH) are essential in female reproduction yet their rates of secretion by the anterior pituitary gland are pulsative? Why?
- which hormone is directly responsible for stimulating spermatogenesis? LH, FSH, testosterone, GnRH, or androgen binding protein.A professional male athlete has been taking a synthetic testosterone supplement for several months. He and his wife have been trying to have a baby, with no success, and have decided to begin treatment for infertility. Before testing the man’s sperm, the doctor discovers that the man’s LH levels are very low. Why do you think his LH le count vels are low? Would low LH levels affect sperm production?Describe the function of each of the following hormones in the uterine and ovarian cycles: GnRH, FSH, LH, estrogens, progesterone, and inhibin.