Answer:
The planet moves faster when closer to the Sun and slower when it is far from it
Explanation:
The law of planetary motion that answers to this question is the 2nd Kepler's law, which states that:
"A line connecting the centre of the Sun to the centre of each planet sweeps out equal areas in equal time intervals"
In order to understand what are the consequence of this law to the orbital velocity of each planet, we have to keep in mind that planets have an elliptical orbit, with the Sun occupying one of the two focii (Kepler's 1st law).
As a result, the planet at some point of the orbit is farther from the Sun, while at some point is closer to it.
Given to Kepler's second law, this means that when the planet is farther, the orbital velocity must be lower (because the line connecting the planet to the Sun is longer, so it can cover the same area moving less), while when the planet is closer to the Sun, the orbital velocity must be higher (because the line connecting the planet to the Sun is shorter, so it will cover less area if moving at the same speed.
The fact that the jovians planets have high masses and hence generate powerful gravitational fields, but they have a low average densities indicates about their interiors <span>composed mainly of very light elements, such as H and He. The jovians planets compose of only very light elements like He and H.</span>
A scientist observes certain changes in the physical features of a particular species over time. She concludes that the species has undergone evolutionary change. She wants to study the animals by analyzing their population. She’ll use() answer choice a. quadrat sampling.
The population of this species is decreasing considerably. If this trend doesn’t change, this species will fall under the category of a. endangered.
Hippocampus is the evolutionarily ancient brain structure responsible for the formation of long-term memories, particularly of places.
The brain of humans and other vertebrates has an important structure called the hippocampus. Hippocampi are located on each side of the brain in mammals like humans. The hippocampus is a component of the limbic system and is crucial for spatial memory, which is necessary for navigation, and for transferring information from short-term to long-term memory.
In both humans and primates, the hippocampus is found in the allocortex and projects neuronal fibres into the neocortex. All vertebrates have the hippocampus, which is the medial pallium. The dentate gyrus and the hippocampus proper, also known as Ammon's horn, are its two primary interconnecting components in humans.
Learn more about hippocampus here;
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I had to look for the options the answer that fits the blank provided above is the term VIRUS. Based on the given description above by a scientist, we can conclude that it is a virus because it is visible with an electron microscope having a shape of a soccer ball. It is non-cellular but possesses a DNA core which is covered by a protein coat that has spike-like projections.