Answer:
Explanation:
1. Flagella
2. Chlorophyll a and b
3. Parasitic relationship
4. Scientists have recently rejected classifying protists in their own kingdom because many of these protists exhibit characters that are similar to the plant, animal and fungi kingdoms. And they were found not to be particularly related.
5. They can move using the pseudopodia as in amoeba, cilia as in paramecium and flagella as in euglena
6. Dinoflagellates
7. This theory is used to give evidence to the fact that eukaryota may have gained emergence from the amoeba like organism that ingested prokaryotic cellss which survived within the same organism establishimg that symbiotic relationship.
Answer:When burned, fossil fuels emit particulate matter as well as carbon dioxide, nitrogen dioxide, nitric oxide (NOx), mercury and sulfur dioxide into the air. Air pollution—particularly due to diesel vehicles—is increasingly becoming one of the main causes for respiratory and cardiovascular illnesses hope it helps BRAINLIST PLZZZZZ
Explanation:
Oceans
Composed of salt water, oceans cover 70% of the Earth’s surface, and, in reality, are one “World Ocean” that we’ve broken up into five smaller divisions. They are, in descending order by size, the Pacific, Atlantic, Indian, Southern (or Antarctic), and Arctic. These are what we might term political or horizontal divisions, rather than physical or biological vertical divisions. Since the 1700s, there have been many mentions of some sort of southern ocean and recently, attempts have been made to formalize the Southern Ocean, given the importance of ocean currents. The Southern Ocean has the strongest and longest current in the world which circumvents Antarctica.
Seas
Next up in size are seas. A sea is also made up of salt water, and is a large body of water entirely or partially surrounded by land. This isn’t to be confused with “the sea” which is generally how people refer to the collection of oceans. It’s a matter of specificity: if you’re not being specific, you might take a holiday by the sea. If you are being specific, you might sail across the Mediterranean Sea or the Pacific Ocean. But you wouldn’t go to the Pacific Sea.
A few seas would be the Mediterranean, Bering, Norwegian, Arabian, and so on. You’ll notice that these are often just bits of the ocean that are mostly surrounded by land that we’ve named. The Caspian Sea is sometimes classified as a salt lake, although it’s quite large.
Wetlands and Deltas
Now before we move inland to talk about lakes, let’s first discuss wetlands and deltas. A delta is where a river meets the ocean, or sometimes a lake. Usually, the river fans out as it approaches sea level. They’re formed when a river carries a certain amount of sediment at a higher rate and when it reaches a stagnant body of water, it forms a delta.
small streams of water flow from inland toward the ocean
A wetland is different from a delta, although wetlands often form near the shore. Wetlands form unique ecosystems that are inundated by water and contain an especially high degree of aquatic plants. Wetlands have been considered the most biologically diverse ecosystem.
Lakes
Okay, back to more traditional bodies of water. Lakes are the next largest after seas. A lake is always landlocked, meaning it’s completely surrounded by land, except for a river that feeds or drains the lake. Apparently, scientists can’t decide on a specific differentiation between lakes and ponds, so generally, we go by size: lakes are bigger. It depends on who you ask, but some people will say that a lake is a body of water that’s 5+ acres in surface area, or up to 99+ acres in surface area. Almost exclusively, lakes are freshwater, unlike seas, bays, harbors, or anything that’s made up of sea water.
Lakes are formed for different reasons. Most often, lakes were formed (we think) by retreating glaciers that carved up the land. Sometimes they’re formed by the movements of tectonic plates. If you want to learn more about tectonic plates, check out our video on them!
A fun type of lake is the oxbow lake. This is formed when a meandering river (which usually occurs in a low-lying plain) bends back on itself forming a U or horseshoe. The edges continue to erode, and eventually, the stream meets itself again, and the running water bypasses the loop and continues on the shorter route. This leaves the water in the loop to form a lake. In Australia, they call them billabongs.
Ponds
Still going down the list in size we have ponds next. These are freshwater and are often manmade. They’re formed in a variety of different ways and include koi ponds and other aesthetic purposes, as well as uses for farming.
Of course, there are many other types of bodies of water, such as fjords, wadis, runs, subglacial lakes, reservoirs, lagoons, kills, etc. But sadly, we don’t have time to talk about all of those right now so you’ll have to go research them on your own!
The Boiling River
But I promised you I’d talk to you about the boiling river! Legend has it that when the Spanish conquistadors went into the Amazon rainforest in search of gold, few returned. Those that did told horror stories of man-eating snakes, diseases, dangerous creatures, and a river that boiled. Hundreds of years later, a young Peruvian named Andrés Ruzo grew up hearing these tales and was determined to find this river. He eventually worked for National Geographic and would spend years researching and talking to locals about the boiling river. Mostly, he was laughed at for chasing old legends. But eventually, deep in the rainforest, he finally found the boiling river, with the help of the local guardian shaman. So yes, it does exist, although “boiling” is a bit hyperbolic. It is, however, huge, extremely hot, quite long, and non-volcanic. It’s classified as a “thermal river” and isn’t actually any hotter than other thermal bodies of water.
Hope this was helpful!
Answer:
11. Float
12. Bacteria
13. Polymer.
14. Hydrogen.
15. Water.
16. Climatic.
17. Prokaryotic.
18. Length.
19. Large.
20. Frequency.
Explanation:
11. Damaged seeds would float on top of water. This is because they are typically empty and as such lacking in any form of nutrient.
12. Cholera is caused by bacteria. This bacteria is scientifically called Vibrio cholerae.
13. Like synthetic fibre, plastic is also a polymer.
14. Metals react wih acids to produce hydrogen gas.
15. The Fire produced by oil cannot be controlled by water.
16. Migratory birds fly to far away places because of climatic changes.
17. Cell without well organised nucleus are called prokaryotic cells.
18. Time period of a pendulum depends on its length. Thus, the time period of a pendulum is directly proportional to its length i.e as its length increases, the time period also increase.
19. The size of pupil becomes larger when you see in dim light.
20. Shrillness of a sound is determined by the frequency of vibration. A shrill sound refers to a type of sound that is typically sharp, high pitched and as such has higher frequency.