Answer:
option d
Explanation:This also refers to structures that are not present in an organism, but were present in its ancestors, i.e. traits that have undergone secondary loss.
Answer:
hyrdotropism- plant grows toward water.
tropism- growth/movement of an organism in response to a stimulus
phototropism- plants response to light
gravitropism- plant roots grow down in response to gravity
geotropism- plants response to gravity
thigmotropism- plants response to contact of solid object. wraps around solid objects
Answer: A
Explanation: Yeast is a micro organism, its food is sugar, it takes in oxygen with sugar and releases co2 or carbon dioxide (which is respiration)
The answer is directional selection
It is the mode of natural selection in which a single phenotype is favored, causing the allele frequency to continuously shift in one direction. The advantageous allele increases in frequency independently of its dominance relative to other alleles; that is even if the advantageous allele is recessive, it will eventually become fixed, changes the average value of a trait. Occurs most often under environmental changes and when populations migrate to new areas with different environmental pressures.
