Here is the full statement: A scientist begin working by trying to explain a natural occurrence that is OBSERVABLE.
Scientific method refers to the techniques that scientists used to carry out scientific investigations and it is made up of series of steps. The first step is observation. A scientist normally begin the process of scientific investigation by observing a phenomenon that occur naturally. The observation will lead to questions, which need to be answered and which eventually lead to conduction of experiments.
Answer:
II. A soybean crop modified to posess herbicide resistance
III. A farm-raised pig engines to digest food more efficiently
Explanation:
The organisms listed have been modified
Answer/Explanation:
Types of reproductive isolation include: temporal, ecological, mechanical, and behavioural.
A snail with a flat disc-like shell will not be able to mate with a snail having a conical shell - this is an example of mechanical isolation, where the animals are physically unable to mate due to incompatible body shapes and sizes.
The reproductive organs of male bush babies do not match with the reproductive organs of females of other bush baby species. - this is another example of mechanical isolation, as the sexual organs will physically not allow reproduction between these species
The mating call of a cricket is not recognized by a cricket of other species - this is an example of behavioural isolation, which results from incompatible mating rituals. I.e. the animals do not respond to each others mating behaviours
The signals sent by a male firefly are not recognized by the female firefly of other species. - this is also an example of behavioural isolation.
Temporal isolation is where species cannot interact because they do not have the same mating seasons or are not active at the same type of day. ?Ecological isolation occurs when two species do not come into physical contact to one another because they access different areas of the habitat. E.g. mating zones, food sources or nesting sites.
Uhh her parents I guess? not really a doctor you should talk to because that’s just growing up for women.. all of them get their periods, it’s not abnormal
