Answer:
C. a high second law efficiency due to use of solar panels on the house.
Explanation:
Second Law efficiency is the rational efficiency that computes the effectiveness of the system relative to its performance. The efficiency measure is the increase in output with the same level of input. Energy efficient system are high second law efficiency. They save electricity and use alternative sources like, solar panels, wind energy and others.
Answer:
Because the vaccine is an antigen from living, weakened or killed microorganisms that activate the immune system and the body produces protective antibodies.
Answer:
ATCCATG
Explanation:
Just remember that A goes with T and C goes with G.
A d when dealing with RNA, the T gets replaced with a U.
Answer:
Explanation:
A female mouse has white fur; a male mouse has brown fur. The two mice have a litter of seven pups, five of the pups have brown fur, two pups had white fur.
The female mouse fur which is white is inherited in the recessive condition i e it is recessive to the brown fur which is that of the male and the female is purebred meaning she has this gene in the homozygous form. The male that has brown fur seeing that the mating produces both brown and white, the male has inherited this gene as a hybrid (combination of the two alleles: one allele for brown and one for white). This has given us a little idea of what genetics is all about.
Why does t. brucei infection cause the symptoms that led to the term "African sleeping sickness"?
The African Sleeping Sickness is a prevalent disease in sub-Saharan Africa. It is caused by the Trypanosoma brucei, a parasitic protozoan carried by the tsetse fly. There are two strains of the African Sleeping Sickness. the first type is caused by the t. brucei gambiense. More than 98% of the accounted cases are caused by this strain.
The other strain is the Trypanosoma brucei rhodesiense. The symptoms of this disease are as follows: extreme fatigue, fever, irritability, severe headache, muscle and joint aches, swollen lymph nodes and skin rash. The parasite invades the central nervous system once it crosses the brain barrier.
For patients infected with the t.b. rhodesiense, the progression of the symptoms is fast. The worst symptoms usually manifest after 2 weeks of getting bitten by the tsetse fly. A t.b. rhodesiense may suffer from mental deterioration. If left untreated, it can cause death within a few months.
For patients infected with the t.b. gambiense strain, the progress is slower. The symptoms are mild, and the patient may only suffer from headaches and intermitted fever. After 7 to 14 days, the patient's central nervous system may be affected. The patient may suffer from confusion, daytime sleepiness, and insomnia. Untreated patients may die within three years.
how is t. brucei infection diagnosed? what factors often make diagnosis difficult?
The screening test for the rhodiense strain is done through microscopic examination of fluid samples. The T.b. rhodiense is mostly isolated in the blood, lymph fluid or the biopsy of the skin ulcer. As for the diagnosis of the T.b. gambiense, serologic testing is preferred because it is difficult to detect the parasite in the blood. One of the main factors that affect the diagnosis of the T.b. gambiense strain is the availability of the test kits and serum antibodies for the screening procedure.
