hardness<span>, </span>luster<span>, </span>color<span>, </span>streak<span>, </span>specific gravity<span>, </span>cleavage<span>, fracture, and </span>tenacity<span>.</span>
Answer: Imagine life without your best friend. Who would you hang out with and talk to about your problems? Life would be so lonely! You rely on your friends for companionship, fun, and support. Animals rely on each other, too. Some have lifelong relationships with other organisms, called symbiotic relationships. There are three different types of symbiotic relationships: mutualism, commensalism, and parasitism.
Mutualism: both partners benefit. An example of mutualism is the relationship between the Egyptian plover and the crocodile. In the tropical regions of Africa, the crocodile lies with its mouth open. The plover flies into its mouth and feeds on bits of decaying meat stuck in the crocodile’s teeth. The crocodile does not eat the plover. Instead, he appreciates the dental work. The plover eats a meal and the crocodile gets his teeth cleaned. Coincidentally, the Egyptian plover is also known as the crocodile bird.
Commensalism: only one species benefits while the other is neither helped nor harmed. For example, remora fish are very bony and have a dorsal fin (the fin on the back of fish) that acts like a suction cup. Remora fish use this fin to attach themselves to whales, sharks, or rays and eat the scraps their hosts leave behind. The remora fish gets a meal, while its host gets nothing. Selfish, sure, but neither gets hurt.
Parasitism: One organism (the parasite) gains, while the other (the host) suffers. The deer tick is a parasite. It attaches to a warmblooded animal and feeds on its blood. Ticks need blood at every stage of their life cycle. They also carry Lyme disease, an illness that can cause joint damage, heart complications, and kidney problems. The tick benefits from eating the animal's blood. Unfortunately, the animal suffers from the loss of blood and nutrients and may get sick.
We can select the resistant microbes that were survived on the second day of antibiotic application.
<h3>How can we select for the resistant ones?</h3>
We can select for the resistant ones by only taking antibiotics for 2 days instead of the full 10 days that the drugs were prescribed in order to see the microorganism that survived on the second day. Bacteria get resistance when they are exposed to similar type of chemicals for a long time. Some of bacteria mutate and make defenses against the chemical which leads to survival of that organism.
So we can conclude that We can select the resistant microbes that were survived on the second day of antibiotic application.
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The land edge that is affected by marine processes is known generally as the coast
- A sea's shore is the area of land there. The coastline is the area of a shoreline where land and water converge.
- Coastlines are shaped in part by currents, tides, and waves. The ground is eroded or worn away when waves crash upon the shore.
- Despite making up only around 8% of the land on Earth, coastlines contain about 26% of all biological diversity.
- This wonderful environment, which is home to many different species of natural communities, is home to seabirds, clams, crabs, starfish, anemones, fish, kelp, and marine mammals, among many other creatures.
- Though it can also be a tough and challenging environment, since it is frequently altered by erosion and tides as well as pounded by waves and sea spray. Typically, there are three types of coasts: rocky, sandy, and muddy.
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Answer:Limiting factor is a factor which can limit the abundance, distribution of the species in an ecosystem this can be a resource, predator or natural disaster. The black swallowtail butterfly feeds on endangered plant named Candy's dropwort. If the plants continue to decrease the population of black swallowtail butterly will also decrease as decrease in the plant population will act as a limiting factor for the growth of butterfly population.
Explanation:
