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Which event during the evolution of land plants probably made the synthesis of secondary compounds most beneficial?
The colonization of land by plants likely led to an increase in synthesis of secondary compounds as a defense mechanism against herbivores and environmental stresses. This adaptation became especially beneficial as plants were exposed to new predators and abiotic stressors in terrestrial environments, highlighting the importance of secondary compounds in plant survival and evolution.
Why must D-Positive blood not be transfused into a D-Negative patient?
Transfusing D-positive blood into a D-negative patient can lead to an immune reaction. The D antigen is part of the Rh blood group system, and a D-negative individual can produce antibodies against the D antigen if exposed to D-positive blood, potentially causing a severe transfusion reaction.
Most bacteria are surrounded by a rigid protective structure called the?
cell wall
What molecule was produced by the elodea while it was exposed to light?
Oxygen was produced by the elodea during photosynthesis while it was exposed to light.
Can Rh antibodies of Rh- be detected?
A person who is Rh negative may have antibodies if he or she has been exposed in the past to Rh positive blood. Rhogam will prevent this sensitization in a pregnant woman with negative blood carrying an Rh positive baby.
What is the negative prefix of the word exposed?
The negative prefix of "exposed" is "un-".
Is exposed an adjective?
It can be (an exposed negative, exposed secrets). The word exposed is a form of the verb to expose (to reveal).
What was the importance of Griffith's work with strains of the bacterium Streptococcus penuemoniae?
Bacteria exposed to DNA can incorporate the DNA and change phenotype.
What is exposed and developed print film referred to?
Negative.
What is negative process when making PCB?
It is a photo process for making circuit boards whereby a negative is exposed on a board that is presensitized. The negative is clear where you want the copper traces.
Why is it beneficial to let a burned area be exposed to air?
If the skin of the burned area is unbroken and it is not likely to be further irritated by pressure or friction, the burn should be left exposed to the air to promote healing.
What actors and actresses appeared in Exposed Negative - 2008?
The cast of Exposed Negative - 2008 includes: Julie Dove as Therapist Emily Ingersoll as Bobby Bliss Chris Ingersoll as Tom Wilson Jeffrey James Lippold as Elvis Amy Rasimas Holt as Casey Rey
What is a negative test result for a TB test?
In people who have not been exposed to TB, there will be little or no swelling at the test site after 48-72 hours. This is a negative test result.
What does it mean when negative film is light?
If it is a black and white negative, more light will pass through the lighter part. Since this is a reversal process, the light parts of the negative will be more exposed and produce a dark image.
How can be bacterial food poisonings be prevented?
There are many different bacterium. The method is to avoid them, and to retard their growth. Heat does not kill all bacterium. Some bacterium require a lack of oxygen (anaerobic), and other require oxygen (aerobic. Botulism poisoning comes from the clostridium botulinin. Clostridim Botulinin is an anaerobic bacterium. Freezing the bacterium will only preserve it. Exposure to air will kill it. People love garlic. So too does the bacterium. Do not store garlic under oil or water. Keep it exposed to air and sunlight. Some bacterium will grow in any environment. Salmonella typhi can not be controlled by O2. It causes typhoid fever.
What are 2 ways in making a photographic print?
1. Contact - in which the negative is sandwiched with the print paper and exposed to light, then the print developed2. enlargement - in which the negative is projected and focused on the paper to be exposed, which is then developed as above.Contact prints are suitable for a "quick look" such as to pick which pictures to "enlarge".You have to do so because most people cannot tell what a picture looks like from its negative.
What is the meaning of film processor?
Film processing is the means of treating photographic film with chemicals after it has been exposed to produce a negative. The resulting negative can be used to make copies of the original photograph.
