Answer:
Marine biology is the study of organisms that lives in the marine environment, the environment that found in sea and oceans. They also study the interaction between these organisms and their environment.
Marine biologists study both living and non-living things in their surroundings where they do research. The living things they study are marine organisms like fishes, sharks, whales, crustaceans, deep-sea organisms, sea plants, microbes and many more living creatures present in the marine environment.
They study their behavior, feeding habits, interaction with other organisms, their role in the ecosystem, mating behavior, etc.
The non-living things a marine biologist study are physical and chemical environment of marine habitat, geology of the area, concentration of salt, and other molecules that affect marine biology.
b. False
Answer:
True
Explanation:
a. True
b. False
Answer:
The answer is A on edgen.
Explanation:
A. T rue
Answer:
Because of insufficient number of offsprings to determine the result of test cross.
Explanation:
Normally, in genetics, a test cross is a cross between a dominant phenotype (genotype unknown) and a homozygous recessive genotype in order to determine the genotype of that dominant organism.
The result of the test cross is obtained when a 1:1 phenotypic ratio is produced for each trait i.e. 1 dominant trait: 1 recessive trait showing that the parent is heterozygous while all the offsprings will show dominant traits if the dominant phenotype was homozygous. Hence, more than one offspring is required to be able to conclude
In this question, the cow only produce one offspring which may be DOMINANT for the observed trait making it difficult to know if other offsprings will all be dominant or some of them recessive. Hence, it is not a sufficient number needed to determine the genotype from the phenotypic ratio of offsprings.
Answer:
The minute hand moves radians.
Step by step explanation:
We know that measure of complete circle is 360 degrees.
In a clock a complete circle means 60 minutes.
The minute hand move from 1:25 to 1:50, it means the minute have cover 25 minutes.
Therefore minute hand moves 150 degree.
Multiply to convert degree into radian.
Therefore the minute hand moves radians.