Answer:
According to the characteristics given and what the image shows, the species to which the frog corresponds is Bufo boreas.
Explanation:
Options for this question are:
- <em>Bufo marinus
.</em>
- <em> Litoria caerulea
.</em>
- <em>
</em><em>Bufo boreas.
</em>
- <em>
Acris crepitans.</em>
Bufo boreas is a species belonging to the family Bufonidae, very common in North America, constituting an anuro amphibian.
The appearance of B. boreas is that of a thickened and irregular skin, due to multiple warts found on its surface. Additionally it has a stripe or line in its dorsal region, which extends from the head to the tail.
These characteristics, together with the description given, make it possible to establish that B. boreas is the species that can be observed in the picture (see image).
Answer: C. The orchids receive water and oxygen from the fungi, while the fungi receive food and minerals from the orchids.
Mycorrhizal association refers to the mutualistic symbiotic relationship between a fungi and roots of vascular plants. In this type association both partners are benefited.
The plant roots are unable to take nutrients which are chemically or physically immobilized in the soil. The mycelium of the mycorrhizal fungus helps to avail those nutrients to the plants. Thus plants are able to obtain phosphates and iron through these fungi. These fungi also, increase the water absorption capacity of plants. In return the fungi receives the direct access of carbohydrates like glucose and sucrose. These carbohydrates translocate from leaves to roots, from there fungi receives these carbohydrates as food source.
The plant orchid and fungi of phyllum basidiomycota form mycorrhizal association, which is a mutalistic association. Thus, the orchids receive water and oxygen from the fungi, while the fungi receive food and minerals from the orchids.
Answer:
Directional selection vs Disruptive Selection
Explanation:
Directional selection leans to a phenotype that is more fittest to the environment of a species, directional selection favors a phenotype extreme values for a trait over medium ones
