DNA and RNA have differences in structure, bases, and function.
There are three main differences between DNA and RNA:
#SPJ6
a prokaryotic cell that can make its own food
an aerobic bacterium
an anaerobic bacterium
Endosymbiotic theory or symbiogenesis is the evolutionary theory. A eukaryotic cell that can make its food will arise from a cyanobacterium. Thus, option a is correct.
Endosymbiotic theory is the evolutionary theory of the origin of the eukaryotic organism from a prokaryote cell. It was formulated based on the mitochondrial DNA and the chloroplast organelle in the plant.
According to the symbiogenesis theory chloroplast and mitochondria were once free-living that got phagocytized by another cell. So, if a cyanobacterium is engulfed then the eukaryotic cell will have the power to produce its own food.
Therefore, the eukaryotic autotroph will be produced from the cyanobacterium.
Learn more about endosymbiotic theory here:
#SPJ6
Answer:
A
Explanation: a eukaryotic cell that can make its own food
The statement 'the density of a specific type of material never changes' is TRUE.
In conclusion, the statement 'the density of a specific type of material never changes' is TRUE.
Learn more in:
Answer:
true
Explanation:
One of the ways to tell what a material is would be to find the density then you know the material
Answer:
Explanation:
There are many options, here are a few choices:
Fast moving water tends to be colder than slow water; some of it originates as snow melt on the sides of mountains, for example. For this, animals in fast water tend to be more cold resistant. This is why you do not see fish like freshwater trout in equatorial regions. These animals struggle and die in slow, warm water.
Fast moving water means that if the animal or plant wants to stay put, it must resist the flow. Fish tend to be far more muscular and lean in these places, while insects like stoneflies, mayflies, and other larvae have ways to secure themselves to rocks and plants while growing. Plants develop strong root systems, and algae hold fast in rocky crevices in the river. Some animals also have suction in order to stay in place where there is fast flowing water.
Some animals have to adapt their reproductive systems as well. Because finding a mate is difficult in the sweeping waters, breeding tends to happen all at one time. As an example, salmon have runs, where thousands of fish all swim upriver at once to breed, can dramatically alter the surrounding ecology of the river. Insects like mayflies have hatches, where hundreds of thousands of flies swarm into the air at once to breed and lay eggs.
Answer:
Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people
There are four trophic levels in the given foodchain, i.e., producer, primary consumer, secondary consumer, and tertiary consumer.
A foodchain is a network of connections in a foodweb that begins with producer organisms and ends with a predator, detritivore, or decomposer species.
In the given foodchain, grass is produces, grasshopper is primary consumer, frog is secondary consumer, while snake is tertiary consumer.
Thus, there are four trophiclevels in the given foodchain.
For more details regarding food chain, visit:
#SPJ2
Answer: Four
Fun Fact - Locusts are actually species of short-horned grasshoppers, they often gather in large swarms and can destroy entire fields of crops, because a single grasshopper can eat half its body weight in plants per day.
Answer:
The crust ( I think)
Explanation: