False, Animal cells do “not” have cell walls.
Sedimentary and metamorphic rocks?
A. A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.
B. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
C.
A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each.
D. A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same
Explanation:
The experiment that has bias the second one in which a company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
- A bias in an experiment originates from the experimenter influencing the desired outcome of the experiment.
- The pharmaceutical company will only be able to critique their own product devoid of the view of other pain relief products.
- This experiment will not give a good marketable opinions the company desires.
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Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean water.
I think it's the first answer
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits. He recognized the mathematical patterns of inheritance from one generation to the next. Mendel's Laws of Heredity are usually stated as:
1) The Law of Segregation: Each inherited trait is defined by a gene pair. Parental genes are randomly separated to the sex cells so that sex cells contain only one gene of the pair. Offspring therefore inherit one genetic allele from each parent when sex cells unite in fertilization.
2) The Law of Independent Assortment: Genes for different traits are sorted separately from one another so that the inheritance of one trait is not dependent on the inheritance of another.
3) The Law of Dominance: An organism with alternate forms of a gene will express the form that is dominant.
SOURCE: http://www.dnaftb.org/1/bio.html
