Answer:
<h2>Males produces less amount of sperms when mated alone.</h2>
Explanation:
Mediterranean fruit flies are also called as medfly. They are a type of pests that are yellow and brown in color and are originated from Sub- Sahara Africa and also found in California, Texas and some other places.
When Matthew Gage analyzed then, he found the males that mate alone produce fewer sperms while those mates in the presence of other males produce more sperms.
Answer:
A.
Explanation:
The arctic soil is so cold that the ground beneath the tundra surface remains frozen all year. This permanently frozen ground is called permafrost. Each summer, when the sun warms the tundra surface, the top few inches of soil thaw. This melted part is called the active layer.
<span>Killer whales are much more common in highly productive cold water areas. These include the Atlantic, the Pacific Northwest, and the higher latitudes of the Southern Ocean.</span>
Answer:
D
Explanation:
Zebra mussels can be a nuisance in novel ecosystems. When introduced in a non-native ecosystem with no natural predators, they reproduce rapidly displacing native mussels. Zebra mussels take up much of the algar that feeds the other native species hence starving them to death and causing their numbers to plummet. In addition, they attach to the other mussels and clog up power plants, that use the local water, water intakes.