Answer: There are four (4) possible outcomes; {FM, FF, MM, MF}
Explanation: Sample space can be defined as the set of all possible outcomes or results of an experiment or random trial. The size of the outcomes constitutes the number of elements present in the space and this is called Sample size.
Since the question involves two children, there are four possible outcomes for the gender. The two children of the family could be in the following formations;
1. Female - Male
2. Female - Female
3. Male - Male
4. Male - Female
Hence, the sample space will be {FM, FF, MM, MF}
Answer:
C. Individuals with thicker fur had a survival advantage in the cold, allowing these individuals to reproduce moe often and create more offspring.
Explanation:
Natural selection means the process of changing the adapting the new environment. Based on the given data one can conclude that the individual with thicker fur had a survival advantage in the cold environment.
Why natural selection occurs?
Natural selection takes place due to 3 underlying reasons:
Reproduction
Heredity
Variation in fitness of organisms.
Due to these reasons, natural selection can leads to speciation.
As the individual are living in cold environment, they need to adapt the change in environment. So, individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offsprings.
Thus, option C is correct.
Answer;
DNA or protein sequences of shared genes
The MOST accurate way to determine the evolutionary relationship between two animals is through the examination of DNA or protein sequences of shared genes.
Explanation;
DNA or protein sequences of shared genes. Biochemical evidence is extremely accurate in determining the relationship between two organisms. Many animals have been re-classified, due to DNA evidence.
Answer:
3
Explanation:
commensalism is the third one
