The answer is A- toxic chemicals in the air
The ground tissue is similar to animal organs.
Answer:
Averaging the fitness of its members.
Explanation:
The fitness of a whole population can also be determined by averaging the fitness of its members. Absolute fitness is the ratio between the number of individuals with a genotype before selection versus after selection. Fitness is usually discussed in terms of genotypes, or collection of genes.
It is important because it allows us to understand many things such as natural selection and genes passed down through generations. It also helps us solve biological problems that impact our lives.
Humans that has biological relationship to each other can be proven by biochemical evidences. Their biological compositions, physiological activities, and genes made it possible to determine their existing relationship. The genetic code, protein synthesis of their body, inherited traits, chromosomes, enzymes and hormones are important features of the body to be used for biologic study or even evolutionary relationships between them.