Answer:
Relationship between Yucca plant and Yucca moth is OBLIGATE MUTUALISM.
Explanation:
Obligate mutualism- The mutual relationship between two partners where both partners are benefited by each other and can not survive without each other.
In case of Yucca plant and Yucca moth,they cannot survive without each other.Yucca moth larvae feed on seeds of Yucca plant and Yucca plant have a single pollinator i;e, Yucca moth. Yucca moth collects pollen from anther and fly to another flower and transfer that pollen to other flowers stigma. In this way they transfer the pollen , usually they make a hole in the ovary to lay eggs and directly transfer pollen to the inside of the stigma.
After laying eggs they mark it with some special kind of pheromone which alerts other moths not to lay egg inside the same flower or lay some eggs not much. So that they can be protected inside the flower and can be developed well.
Answer: Natural Causes and Human Activities
Explanation:
The factors influencing kelp forest stability are diverse: kelp harvesting; grazing by fishes, sea urchins, and crustaceans; plant competition; storms; sedimentation; and pollution; global warming and the association with rising ocean temperatures.
Answer:
They act as barriers whereby wind deposits its load to come up with major land forms in the desert.
Explanation:
Sand dunes retain the load that arises as a result of erosion processes ,and disposition.
Wind deposits con form hills and sand sheets .
An example of this is in California , whereby Sand dunes make up to 25 % of the land-forms in the arid areas .
Sand dunes can also influence the formation of oases , as a result of wind action.
Answer:
24
Explanation:
24 mating pairs are illustrated in Model 1 .
