Answer:
part a
A= Tt
B=tt
part b
offspring a
genotype= TT&Tt, phenotype=tongue rolling
offspring b
genotype=Tt phenotype= tongue rolling & genotype tt phenotype= unable to roll tongue
Darwin lived in a time where natural selection was a strange theory among scientists and researchers. This was especially true when other researcher Lamarck argued that organisms passed on helpful traits to their offspring, that they magically could form a new trait to adapt to their environment and then pass it onto their offspring. For example, if a giraffe was too short to reach food, it would grow a larger neck in its lifetime and then pass that trait onto its offspring. Darwin argued that, through the process of survival of the fittest, that short giraffe would die off and never receive the chance to pass on its shortness to future populations. Thus, taller giraffes would survive— they can reach food, shorter giraffes can’t— and the short genes would disappear. The fact that Darwin was introducing a new theory that nobody was used to at the time was peculiar, so he had few people on his side until long after his observations.
Another problem Darwin had was the lack of technology. To travel, Darwin would have to use boats to reach far away places, and of course, this took time.
The final problem Darwin had was the extra time it took for evolution, a process that can take up to millions of years. Evolution didn’t occur over night— it took time for Darwin to conduct experiments, observe, conduct them again, come to a conclusion, and so on.
Hope this helped a little!
A gecko, fly agaric (fungus), and a palm tree all have cells with nuclei, but a gecko and fly agaric are both heterotrophic (making them more closely related) while a palm tree is a photosynthetic autotroph.
All of the above are made using wood.
Answer:
The correct answer will be:
1. Mutualism
2. Competition
3. Commensalism
Explanation:
In an ecosystem the organism interacts with each other in one of the following ways:
1. <u>Competition</u>- interaction occurs when two or more than two species depend on the same resources, sharing the same habitat and niche. These species will fight for the resources and both will be negatively affected.
2. <u>Commensalism-</u> interaction takes place when one organism is benefited while the other is neither harmed nor gained. For example- the interaction between Remora fish and large fish in the ocean.
3. <u>Mutualism</u> -occurs when the species are dependent on each other for the resources and both benefits each other. For example- the plants and birds co-evolved benefiting each other like animals helps in pollination and plants provide nectar to them.
Thus, the selected options are the correct answer.
