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In the human respiratory system, gas exchange occurs across the

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Get college assignment help at Smashing Essays Question In the human respiratory system, gas exchange occurs across the cells of the ________.a.diaphragmb.tracheac.bronchid.alveoli

List three common allergens and for each allergen, list and

Question List three common allergens and for each allergen, list and describe the function of three allergenic components found within the allergen. 

1.Coral reef decline or dieback is occurring in many areas of the

1.Coral reef decline or dieback is occurring in many areas of the world. Which of the following factors might you suspect to be a major culprit in coral reef decline? lack of oxygen or seawater safity below 2% or waste-build up or water temp below 29 C? tell me correct one2. List the three types of experiments that are done in ecology, and explain how each differs in regard to regulating independent variables that are under study.Your response should be at least 200 words in length.

do you feel that humans are doing their part in trying to

do you feel that humans are doing their part in trying to save the animals in the region. If not, what do you feel can be done to save the plants in the region and stop the animals from migrating from the area?Answer in couple sentences

Where does the Calvin cycle take place?

Question Where does the Calvin cycle take place?

What are Darwin’s four observations concerning natural selection? explain each

Question What are Darwin’s four observations concerning natural selection? explain each one with an example. How does natural selection impact evolution?

What are carbohydrates and how are they used by the

Question What are carbohydrates and how are they used by the body? How do complex carbohydrates differ from regular carbohydrates? List five foods that are rich in carbohydrates.

Explain the role of the consumer in fostering environmentally supportive

Question Explain the role of the consumer in fostering environmentally supportive agricultural practices.

Briefly describe genotypes and phenotypes, including at least one example

Question Briefly describe genotypes and phenotypes, including at least one example of each in your descriptions. Then, name two types of genotypes and explain how they differ.

Skin color and the amount of ultraviolet (UV) lights affects

Question Skin color and the amount of ultraviolet (UV) lights affects babies by altering which of the following? Birth weight Brain size Resistance to infection Vitamin D and folate levelsWhich of the following is a macronutrient? Vitamin B12 Riboflavin Protein Ascorbic acidIf pollinating insects prefer a particular flower color, which pattern type of natural selection would be at work? Directional selection Stabilizing selection Diversifying selection Random selection

Which of the following are the reproductive organs of angiosperms?

Get college assignment help at Smashing Essays Question Which of the following are the reproductive organs of angiosperms? style=”color:rgb(0,40,85);background-color:transparent;”> Stems Leaves Roots FlowersForests contain approximately what percentage of the land-based biomass? 25% 33% 50% 70%Normal hemoglobin (“S”) is dominant over sickle cell hemoglobin (“s”). If a person with SS hemoglobin has a child with a person with Ss hemoglobin, what is the chance that person will have sickle cell anemia? (“ss” hemoglobin)? 0% 25% 50% 100%

Xylem and phloem are __________. meristematic tissue epidermal tissue vascular

Question Xylem and phloem are __________. meristematic tissue epidermal tissue vascular tissue ground tissueWhich is an accessory organ to the digestive system? Esophagus Small intestine Large intestine LiverMules cannot reproduce because of which of the following? Gamete incompatibility Hybrid sterility Mechanical isolation Spatial isolation

Which one of the following is an observation Darwin made

Question Which one of the following is an observation Darwin made about natural selection? style=”color:rgb(0,40,85);background-color:transparent;”> Yellow seed color is dominant over green seed color. Chromosomes come in pairs. Survival and reproduction are not random. Humans are descended from apes.

The human body is mostly composed of the element ?

Question The human body is mostly composed of the element ? Nitrogen? Carbon ? Oxygen ?

Explain why alchohol levels in the blood are derected by

Question Explain why alchohol levels in the blood are derected by breath analysis

Can I please get help with these questions. Attachment 1

Question Can I please get help with these questions. Attachment 1 Attachment 2 ATTACHMENT PREVIEW Download attachment Screen Shot 2019-07-03 at 10.27.17 AM.png A person possesses one TYR allele with a nonsense mutation near the beginning of the gene and another tyrosinase allele with a silent mutation. Does this person have Albinism? ATTACHMENT PREVIEW Download attachment Screen Shot 2019-07-03 at 10.27.28 AM.png Tyrosinase is an enzyme expressed in melanocytes and is required to make pigment. Those who possess two loss-of-function alleles for TYR have albinism. Andrea has two mutated tyrosinase alleles, each with a missense mutations (an isoleucine to a threonine change). And Dan has two mutated TYR alleles, each with a missense mutation at the same amino acid as Andrea’s, but the change is from an isoleucine to leucine. Who symptoms are likely more severe? Dan O Neither O Andrea

Previous Next After considering the scientific method explained in the

Previous Next After considering the scientific method explained in the textbook, write an essay about how it compares to the way nonscientists approach problems. Identify some problems that are solvable scientifically and some that are not. Using one or two small problems, describe the process you would go through in solving that problem using the scientific method. Discuss the significance of the scientific approach to the development and advancement of human knowledge. Your essay should be about 300 words.

ATP synthase enzymes are found in the prokaryotic plasma membrane

Question ATP synthase enzymes are found in the prokaryotic plasma membrane and in the inner membrane of a mitochondria. What does this suggest about the evolutionary relationship of this eukaryotic organelle to prokaryotes?

Use the knowledge you gained in this lab to begin

Question Use the knowledge you gained in this lab to begin a discussion about how cooking foods or refrigerating them affects browning of vegetables, growth of bacteria/fungus, and spoiling or decomposing of food. Alternately, speculate on how the apples in a HappyMeal don’t turn brown for days on end. What might they have done to them?

when we when we have experimental and contril groups of

Question when we when we have experimental and contril groups of 1000 subjects each, similar results were found. Is it significant statistically 95% level and yes it is sigificant but when the sample size is just increased. What does this mean?

I am not sure of the correct answer to the

Question I am not sure of the correct answer to the following practice example questions, could you please provide an explanation as to how you got the answer?#13 Which of the following statements does NOT correctly describe a difference between the male and female reproductive systems?Select one:a. Testosterone has a major role in the development of secondary sexual characteristics in male reproductive systems, whereas LH promotes the development of secondary sexual characteristics in females.b. The structures that produce gametes are exterior to the body in the male reproductive system, whereas the gametes are produced inside the body for females.c. The excretory and reproductive systems both use the urethra in males, whereas in females, there are separate tubes for the excretory and reproductive systems.d. The male reproductive system mass produces large quantities of gametes each day, whereas the female reproductive system produces an average of a single gamete each month.#15 All of the following statements about the female reproductive system are correct EXCEPTSelect one:a. follicle stimulating hormone (FSH) stimulates the development of a follicle.b. the ovaries are directly attached to the Fallopian tubes.c. normally, only one follicle develops into a mature ovum in the ovaries per cycle normally.d. luteinizing hormone (LH) stimulates ovulation.#22 Which of the following identifies the STIs that can lead to infertility if left untreated?Select one:a. Genital herpes, syphilis, and HIVb. Chlamydia, gonorrhea, and human papillomavirusc. Hepatitis B, genital herpes, gonorrhead. HIV, chlamydia, and syphilis#23 Which of the following STIs can lead to male sterility?Select one:a. Chlamydia and gonorrheab. Genital herpes and human papillomavirusc. Gonorrhea and syphilisd. Human papillomavirus and chlamydia#24 Which of the following STIs can be prevented with a vaccine?Select one:a. Chlamydia and gonorrheab. Hepatitis B and genital herpesc. Human papillomavirus and hepatitis Bd. Gonorrhea and syphilis#25 Which of the following STIs can easily be transmitted during sex even with the use of physical barriers such as condoms?Select one:a. Gonorrhea and HIVb. Chlamydia and gonorrheac. Human papillomavirus and genital herpesd. Chlamydia and HIV #26 Which of the following STIs can be cured with the use of antibiotics?Select one:a. HIV and genital herpesb. HPV and gonorrheac. Hepatitis B and chlamydiad. Gonorrhea and syphilis#27 If the number of Sertoli cells decreased in a male’s testes, which of the following effects would occur?Select one:a. The man’s sperm count would decrease, and FSH levels would increase.b. The hypothalamus would enter hyperactivity, and GnRH levels would increase.c. The testes would decrease in size, and LH levels would decrease.d. Body changes for puberty would be delayed, and testosterone would decrease.#30 Untreated chlamydia and gonorrhea can lead to pelvic inflammatory disease in women. Pelvic inflammatory disease (PID) can cause a buildup of scar tissue on the Fallopian tubes.Women affected with PID can become infertile becauseSelect one:a. sperm is blocked from entering the Fallopian tubes to fertilize the eggb. the fertilized egg cannot implant on the endometriumc. the ovaries cannot secrete the necessary hormones to support an embryod. the ovum cannot be swept into the Fallopian tube#31 Untreated chlamydia can cause inflammation in the male reproductive system. Sperm cells may not be able to mature properly if the inflammation occurs in theSelect one:a. vas deferensb. epididymisc. urethrad. seminal vesicles#32 Decreased immunity is a symptom of HIV/AIDS. This is caused by which of the following?Select one:a. HIV attacks the macrophages. Pathogens cannot be destroyed once they enter the body.b. HIV destroys antigens. This decreases the possibility of recognizing pathogens in the future.c. HIV attacks the helper T cells. This allows pathogen cells to enter the body unnoticed.d. HIV destroys memory T cells. If the body is infected again, there is no antibodies to fight an infection.#35 At the seventh week of embryonic development, testosterone will influence a genetically female embryo (XX) to developSelect one:a. Female reproductive structuresb. Male reproductive structuresc. Both reproductive structuresd. No reproductive structures#36 Which of following scenarios does NOT result in the development of male reproductive organs?Select one:a. Presence of SRY geneb. Absence of interstitial cellsc. XY chromosomesd. Increasing levels of testosterone#37 Which of the following statements about gender development is NOT correct?Select one:a. The testis-determining factor gene on the Y chromosome stimulates the production of male hormones.b. To be genetically male, one X chromosome and one Y chromosome are required.c. XX females can develop male sex organs in the presence of testosterone.d. XY males will develop male sex organs without the presence of androgens.

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