Chapter 39

Fill in the blank: The cell resulting from fertilization divides by the process of ___________________.

During fertilization in flowering plants, one sperm cell nucleus fuses with the egg nucleus, producing the diploid zygote. The other sperm nucleus fuses with the ___________________________________, producing the triploid ________________________, which develops as temporary tissue that nourishes the embryo. This process is called ___________________ fertilization. What tissue nourishes the embryo in gymnosperm seeds?

Provide answer in number 4 to 10. Understand carefully the direction and given pictures below. It’s not incomplete. No need to explain each correct answer. Thank you in advance.

Genotype, Phenotype, Traits, Allele, Heredity, Dominant, Recessive, Homozygous, Heterozygous, Natural Selection, Polyp, Medusa, Cnidocytes, Ctenophore, Radial Symmetry, Diploblastic, epidermis, endodermis, Cilia, Mesoderm, Chemotaxis   _______________15. Process by which an organism moves towards or away from a chemical stimulus. ______________16. An allele that expresses itself only when an identical allele is present. ______________17. The passing down of genes from one generation to the next. ______________ 18. Collection of cells on the outside of an organism. ______________19. Collection of cell lining the inside of an organism. ______________20. The gene makeup of an organism.

Fetal Pig Please refer to the pic that's attached to answer the question Explain the functions of the parts (Do labeling if possible) observed, such as cranial, caudal, lateral, medial, proximal, distal, pelvic, and pectoral. Also, describe the fetal pig's color and texture.

The oogonium starts meiosis I but stops at ____________________.

Using anatomical terminology please explain why a doctor will perform a digital rectal exam if prostate cancer is an issue? Please explain why urination would be affected by changes in the prostate.

Give the correct answer to the question. There can be multiple correct answers.If none of the choices are correct, then write the correct answer. I. The germ band needs to retract for fruit fly segments to develop properly.II. The formation of the sea urchin archenteron is made possible by epithelial cells that underwent an epithelial-to-mesenchymal transition.III. Frog gastrulation involves the epiboly of endoderm cells.IV. Chicken endoderm and mesoderm is formed through the migration of cells through both the anterior and posterior end of the primitive streak. a. All choices are true b. I & II are true but IV is falsec. III is false d. IV is sometimes true

Answer the sheet and explain each answer.

Write True if the statement is correct. If false, change the underlined word or phrase to make the statement true. Write your answers on the blanks. 1. Modern species look similar to their ancestors because they are descended from them but with modification. 2. Paleontology helps in understanding the organisms that have lived during prehistoric times. All organisms emanated from different ancestors. Individual organisms differ from one another. Some of their differences are inherited. 3. 4. Genes play important roles in the evolution of organisms. 6. Descent with modification is the change in the DNA of an organism. 5. 7. Artificial selection is mostly associated with organisms that survive in the environment. 8. Many plants and animals today are remarkably well-suited to the environment they live in. 9. A key factor in the survival of organisms is how well they adapt to their environment. 10. Because most present-day humans no longer live in natural environments, natural selection is…

What is one current controversy surrounding abortion? Summarize in two paragraphs.

8) If a woman is heterozygous for neurofibromatosis (a dominant disorder) and produces with a homozygous normal man for the disorder, what are the chances that a child will have the disorder? __________________________________________________

Provide an answer in number 1 to 9. Understand carefully the direction and given picture below. It’s not incomplete. Thank you in advance.

Why xrays doesn't harm the unborn child?     Write the answer with proper references and intext

pler. 11.1 Anatomy MATCHING EXERCISE Match each word or phrase to its description. 1. anus central open area through the length of a tube or duct 2. bulbourethral gland destroys defective spermatozoa 3. corpora cavernosa has a head and a tail 4. epididymis secrete the male hormone testosterone 5. inguinal canal egg-shaped gland in the scrotum 6. interstitial cells another name for the genitourinary system 7. lumen produces thick mucus that is part of the semen 8. prostate gland erectile tissue located in the penis 9. spermatozoon opening in the abdominal wall muscle of a fetus 10. testis perineum is the area between the posterior scrotum and this 11. urogenital system doughnut-shaped gland CIRCLE EXERCISE Circle the correct answer from the choices given. 1. The male sex glands are the (bulbourethral glands, gonads, prostate gland). 2. Before birth, the vas deferens is in the (epididymis, spermatic cord, urethra). 3. An individual spermatozoon has (23, 46, 92) chromosomes. 4. The…

Please answer asap and type your answer and do not copy from anywhere please

Proteins (including transcription factors) and mRNAs that come in with the egg of an embryo will start the process of determination in a growing embryo. These are collectively called ___________ ____________

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Please answer this question and please label the answer like this answer: When you answer it label it so i know which part is the answer

If both parents show a recessive trait then the offspring (children) will show what? ________________________________________________________

Write a brief description on female reproductive system anatomy in 150 words. Use at your own words

Select a specific type of birth control currently on the market (available). Identify how that birth control specifically works to prevent conception.

7) Sally’s mother has Huntington’s disease. Sally’s father doesn’t have Huntington’s disease. What are the chances that Sally will have Huntington’s disease? __________________________________________________________________

Write a brief description on male reproductive system anatomy in 150 words. Use at your own words

https://www.youtube.com/watch?v=Q_8ZEW2CGKo   https://www.youtube.com/watch?v=7EAeTkZ7Xow   Watch 1 plastination technique and 2 human bodies exhibit to answer the question   1: Describe the plastination technique in your own words. What did you find the more complex part of the process?   2: Describe one of the cadaver’s that was exhibited in the Las Vegas: Human Bodies Exhibit. Describe which muscles you could see and what type of movements this body was attempting to display (flexion, abduction etc. )

you have not answer part d. please draw the structure

please label with the word bank.

First, explain the difference between a person and a human being. Why is this difference relevant in the discussion of abortion? Do you regard the human/person distinction relevant in the discussion or do you think there are more important factors to consider. Which ones?

Without explanation give quickly answer.

Select the most accu

Answer the table in the picture, then analyze the table after filling the table. Thank you.

please label answer quickly

Create a sentence including the following three terms: fetus, placenta, umbilical cord.

Sexual differentiation begins close to 4 weeks after fertilization, but cannot be seen visually until about 6 weeks post fertilization. All fetuses begin with a ______________________ gonad that is able to become either ovaries or testes, depending on the presence or absence of the Y chromosome.   If the Y chromosome is present, a region of the Y chromosome will begin expressing genes that start the process of masculinization of internal structures. This region is known as the ______________________________ region or ___________ for short. The expression of these genes causes the bipotential gonad to develop into the testes. Once the testes have started developing, two hormones, testosterone and Anti-MüllerianHormone are produced. Testosterone causes the _____________________ ducts to develop into the _____________________. Testosterone also causes the internal development of the __________________ and __________________. Anti-Müllerian Hormone causes the ______________________ ducts…

Compare external and internal fertilization.    Can you please help me with this question