What three animals are most likely to cause human diseases

What three animals are most likely to cause human diseases

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Dogs and cats are the most likely animals to pass diseases to humans (called zoonoses). Insects can pass many human illnesses.

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Biology Help, this isn’t homework! I’m checking my answers!?

Q: 1. Crustaceans have mouths composed of a pair of A. mandibles. B. antennae. C. chelipeds. D. spiracles. 2. How many distinct body sections do crustaceans have? A. One B. Two C. Three D. Four 3. What is the arrow pointing to Fig. 24.2.? A. Abdomen B. Cheliped C. Carapace D. Mandible 4. The head and trunk of crustaceans form their A. cephalothorax. B. carapace. C. cheliped. D. mandible. 5. A crustacean that feeds on microscopic crustaceans is most likely a A. phototropic organism. B. plankton. C. filter feeder. D. type of malpighian. 6. An arthropod’s body parts are segmented into similar sections that A. perform identical functions among all arthropods. B. are made of cuticle that grows with the animal. C. have each evolved to perform a different function. D. form a tough biological plywood. 7. Which term describes the process that arthropods use to develop a new exoskeleton? A. Shedding B. Molting C. Reforming D. Growing 8. Arthropods can spread disease to humans when the arthropods A. feed on the humans. B. suffer from the disease. C. bite animals that humans eat. D. are killed by insecticides. 9. The entire surface of an arthropod’s body is covered by a protective A. coating. B. exoskeleton. C. appendage. D. carapace. 10. An animal that has eight legs, fanglike pincers, and the ability to produce silk is a(n) A. insect. B. trilobite. C. arachnid. D. crustacean. 11. During the process of incomplete metamorphosis, a young insect looks like a A. small chrysalis. B. dormant pupa. C. wormlike larva. D. miniature adult. 12. Insect wings are extensions of the A. exoskeleton. B. thorax. C. mandibles. D. abdomen. 13. Insects, bats, and birds are the only living groups of animals that possess which of the following characteristics? A. Flexible cuticles. B. Night vision. C. Periodic molting. D. True flight. 14. During the process of complete metamorphosis, young insects A. look the same as adult insects. B. hatch out of eggs as wormlike larvae. C. have clearly divided bodies. D. have wings, legs, and compound eyes. 15. Grasshoppers are insects that have six legs and A. three body sections. B. two body sections. C. no spiracles. D. no eyes. 16. A mosquito that carries a disease from one host to another is known as a A. carnivore. B. parasite. C. predator. D. vector. 17. Chemicals used to kill insects and arthropods do not break down easily and accumulate in predator species through the process of A. biomagnification. B. insecticide resistance. C. incomplete dominance. D. biointegration. 18. Ladybugs are introduced to an area to eat an insect that is destroying crops. What could result if the ladybugs run out of insects to eat? A. The ladybugs could begin eating the crops. B. The ladybugs could begin eating other insects . C. The ladybugs could die off. D. All of the above. 19. There are a large number of arthropods; therefore, they can successfully A. overthrow colonies of mammals. B. live on land. C. compete with humans for resources. D. All of the above. 20. Scientists are able to develop insecticides to kill disease-causing insects. Which of the following conditions must be considered when applying insecticides to an area? A. The effect of the insecticide on other species. B. The possibility of biomagnifications. C. The benefits of disease control versus environmental impact. D. All of the above. 21. Which arthropod group is extinct? A. Trilobites B. Crustaceans C. Chelicerates D. Myriapods 22. The main disadvantage of an exoskeleton is that it A. requires a closed circulatory system. B. allows too much environmental stimuli. C. does not support tissues against gravity. D. cannot grow and alter as the animal does. 23. Which of the following body parts do chelicerates lack? A. Appendages B. Pedipalps C. Exoskeletons D. Mandibles 24. Which of the following are the most commonly known myriapods? A. Butterflies and bees B. Spiders and ticks C. Centipedes and millipedes D. Crabs and lobsters 25. What material makes the exoskeleton of most arthropods very hard? A. Chitin B. Cellulose C. Calcium D. Water

A: ABi am not psychicACCBBBCDBDBADAC?BDADDCA

Biology multiple choice help pleasee.!?!?

Q: 1.) What statement is untrue regarding viruses?A virus has 3 basic “body parts” a capsid, where the genetic information is held, a body and several legs used for walking.A virus may have either DNA or RNA not both.A virus can insert its genetic material into its host.Viruses cause several diseases in humans including AIDS and some forms of cancer.Viruses were the first genetic engineers able to alter the genetic information in its host.2.) Proteins are synthesized by the cell asbranched chains of nucleotides.chains of nucleotides.a chain of amino acids joined by peptide bonds.only enzymes.a single amino acid.3.) The studies of _______involving the addition or deletion of one base pair at a time in a gene were used to prove that the genetic code for one amino acid is made up of three bases.amino acidsproteinsmutationsprotozoanucleotides4.) What phrase makes a true statement? The genetic code used in protein translationis a triplet code of nucleotides.has each nucleotide specifying either the insertion of an amino acid or a chain termination.is found in nearly all cells including mammalian mitochondria and some protozoan.has no specific translation start signal and stop signal.always uses different codons for a single amino acid.5.) What part of the protein synthesis process involves the ribosomes?cell divisiontranslocationtranslationtranscriptionreplication6.) The enzyme that catalyzes the formation of the peptide bond is called:aminoacyl-tRNA synthetaseRNA polymeraseribosyl transferasepeptidyl transferaseprotein synthetase7.) What statement is false?Every cell uses all the DNA it contains continually in protein synthesis.The transcription of much of the cell’s DNA is restricted most of the time.The human genome estimates a range of 30,000 to 40,000 genes.Such things as the environment and maturity of an organism will help determine what genes are being transcribed.Some genes are never transcribed in certain cells.8.) Changes in the sequence of bases in DNA is called mutations. How do these changes take place?A mistake is made in the pairing of sugars.The bonding of base pairs is too rapid for the proofreading enzymes to keep up.There is not any DNA polymerase present in the cell.There is not enough ultraviolet light present.A mistake is made in base pairing during replication.9.) Which of the following statements concerning DNA electrophoresis is correct?Longer DNA fragments migrate farther than shorter fragments.Migration distance is inversely proportional to the fragment size.Positively charged DNA migrates more rapidly than negatively charged DNA.Uncut DNA migrates farther than DNA cut with restriction enzymes.All of the above10.) What is DNA polymerase?an enzyme involved in making RNAa peptide base included in both RNA and DNAan enzyme involved in DNA replicationa proofreading enzyme on DNA moleculesan enzyme that breaks down DNA at the end of the cell’s life.11.) The effects of a mutationare the same no matter what cell they occur in.are usually for the good of the animal.have the greatest potential of change for the future in cells destined to be gametes.caused by deletion and insertion on a gene is very slight.in gametes is not passed on to the next generation of organisms.12.) Mutationsare the basis for genetic variation in organisms over time according to the theory of evolution.are usually harmless to the organism.of a single gene are the cause of a large number of diseases in both humans and other organisms.called translocation cause both sickle-cell anemia and cystic fibrosis.taking place in parent gametes are more likely to be passed by the male.13.) A restriction enzyme acts on the following DNA segment by cutting both strands between adjacent thymine and cytosine nucleotides ……………TCGCGA…………………. .. ……………AGCGCT…………………… Which of the following pairs of sequences indicates the sticky ends that are formed?…GCGC CGCG……TCGC TCGC……T T……GA GA……GCGC GCGC14.) Biotechnologyis the manipulation of cells and their protein components.is a very new science studying the treatment of diseases.is not involved in genetic engineering.was used to study the cause of diabetes.uses such tools as restrictive enzymes as well as gene splicing and silencing.

A: I’m sure all of these answers can be found in your textbook.If you need help understanding a concept, I’ll be happy to help.Good luck in your studies,~ Mitch ~

And did you also know?

Q: •Additional Benefits: •Your community will also benefit. Unwanted animals are becoming a very real concern in many places. Stray animals can easily become a public nuisance, soiling parks and streets, ruining shrubbery, frightening children and elderly people, creating noise and other disturbances, causing automobile accidents, and sometimes even killing livestock or other pets.- The American Veterinary Medical Association •The capture, impoundment and eventual destruction of unwanted animals costs taxpayers and private humanitarian agencies over a billion dollars each year. As a potential source of rabies and other less serious diseases, they can be a public health hazard.- The American Veterinary Medical Association DID YOU KNOW?The most important thing you can do to stop animal abuse is to spay or neuter your pets! Each day 10,000 humans are born in the U.S. – and each day 70,000 puppies and kittens are born. As long as these birth rates exist, there will never be enough homes for all the animals. As a result, every year 4 to 6 million animals are euthanized because there are no homes for them. What can you do to stop the suffering? Spay and neuter your pet! In addition to saving lives, spaying and neutering can also drastically improve your pet’s health and life expectancy. The idea that pets become fat or lazy when they are spayed or neutered is a myth. Sterilized pets lead healthier, longer lives. Spaying a female eliminates the possibility of uterine and ovarian cancer and greatly reduces the risk of breast cancer. Neutering a male reduces the risk of both prostate enlargement and prostate cancer. Neutering also will make your pet more affectionate and less likely to roam, get in fights, or become lost. Spay and Neuter Your Pets! Good for You, Your Pet, and the Community Prevent A Litter – It’s Good for You Spayed and neutered pets are better, more affectionate, companions. Neutered cats are less likely to spray and mark territory. Spaying a female dog or cat eliminates its heat cycle, which can last twenty-one days, twice a year, in dogs, and anywhere from three to fifteen days, three or more times a year, in cats. Females in heat often cry incessantly, show nervous behavior, and attract unwanted male animals. Spayed and neutered pets are less likely to bite. Unaltered animals often exhibit more behavior and temperament problems than those that have been spayed or neutered. Prevent a Litter – It’s Good for Your Pet Spayed and neutered dogs and cats live longer, healthier lives. Spaying female dogs and cats eliminates the possibility of uterine or ovarian cancer and greatly reduces the incidence of breast cancer. Neutering male dogs and cats reduces the incidence of prostate cancer. Neutered animals are less likely to roam and fight. Prevent A Litter – It’s Good for the Community Communities spend millions of dollars to control and eliminate unwanted animals. Irresponsible breeding contributes to the problem of dog bites and attacks. Animal shelters are overburdened with surplus animals.

A: Yes, and my puppy is being spayed this friday.