Ch. 35 & 40 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
What type of pathogen can antibiotics treat? | bacteria |
From where does active immunity come? | yourself |
What carries out humoral immunity? | antibodies |
What is the injection of a weakened pathogen called? | vaccination |
Waht is the body's first and most important line of defense against diesase? | skin |
What is the name of diesease-causing organisms? | pathogen |
Killer T cells attack pathogens in what kind of immunity? | cell-mediated response |
what type of immune cell does HIV destroy? | Helper T cells |
An opening in the skin is a potential entrance for what? | infection |
What happens during anallergic reaction? | Mast cells produce histamines |
What triggers and immunce response | antigens |
Why do people with AIDS die from sicknesses such as colds and flu? | No Immune System |
What are the wtwo divisions of nervous system? | central and peripheral |
Which neruron type travels from the brain to the body? | Motor |
What is a stable internal envionment? | homeosatsis |
What mechanism is used to maintain a stalbe internal environment? | Feedback Inhibition |
What is the name of the chemical that travels across a synapse to the next neuron to continue an impulse? | neurotransmitter |
Which part of darwin's theory is represented when lions prey on antelope and some escape? | Survival of the fittest |
Which characteristic of a population best explains why some species survive while others do not? | biodiversity |
Why do lethal recessive alleles remain in a population | heterozygotes |
Which of Mened;s laws does a dihybrid cross prove? | Independent Assorment |
What is the chance of a male child during fertliization | 50% |
How ddoes genetic drift affect biodiversity? | decreases it |
Name one positive thing taht results from mass extinctions | opens up habitats |
What stage of protein synthesis occurs at the ribosome? | translation |
During transcription what base replaces thymine on the duplicated stranc? | uracil |
What type of mutation will shorten the DNA strand and change every amin acid after it? | deletion |
What varies among proteins resulting in different functions | amino acids |
Which bases do DNA and RNA share? | guanine, cytosine, adenine |
What two organisms are carriers of recombinant DNA? | Bacterial plasmids and transgenic organisms |
What tool is used to cut DNA into fragments? | restriction endonucleases (enzymes) |
What ddoes natural selection act directly on? | Phenotypes or allele freuencies of a popluation |
How are lethal alleles maintained in a population | heterozygotes |
to help remove lethal alleles, what type of male should you remove from a population | heterozygote |
Define natural selection | ability to survive and reproduce |
What are the two main sources of variation in a population? | mutations and gene shuffling |
In order for speciation to occur, what must happen to the original population? | Isolation geographic or behavior but eventually reproduce |
While observing rocks, if one layer has very few species and another below it has many different species, what does this prove has occurred? | Mass extinction |
What is the most important factor to ensuring species survival? | biodiversity |
During photosynthesis what is the carbon dioxide used to produce? | sugar or glucose |
Which part of the cell is the packaging factory | golgi |
Name the two factors that can reduce enzyme activity if they are outside the optimum range. | pH and temperature |
What kind of organism will always be a prokaryote | bacteria |
Why do we use control groups in experiments? | to compare to the results of the test group |
What is produced from meiosis | 4 different haploid gametes |
Hemophilia usually affects males but can affect females, but it is rare. What can you infer about how this disease is transmitted? | Sex-linked recessive on X |
What stage of protein synthesis occurs at the ribosome? | translation |
Identify 3 things that we have produced from genetic engineering. | Clones, transgenic organisms, medicine, more food |
What is the most immediate natural cause of genetic variation? | Mutations |
Where does transcription occur and what does it produce? | Nucleus; mRNA |
Where does translation occur and what does it produce | ribosome and proteins |
Created by:
3j0mk1
Popular Biology sets