Answer:
The first astronauts to land on the moon observed the existence of thin layers of dust hovering above the lunar surface. Like there is no wind on the moon, it was understood that this phenomenon was linked to the photoelectric effect caused by sunlight: electrons are extracted from the
grain of dust from lunar soil when receiving energy electromagnetic radiation from the sun and, thus the grains become positively
loaded.
The same process also starts electrons of the lunar surface, contributing to the positive charge on the illuminated side of the Thus, the electric field generated by the surface of the moon makes the charged grains of sand suffer electrical force upward by balancing your weight
Explanation:
Dust can be formed by small particles, smaller than 500 micrometers, but the nature can be so different from one place to another.
1. The answer depends on your picture.
DNA is packed and condensed with proteins in the form of chromosomes.
Since the process of division is going to start that means each chromosome will have an X shape. They had the DNA content copied once (in the S phase). The original, plus the copy created, form the X.
You just have to count the number of X's in the picture.
2. The answer is 4 nuclei.
Since the process of division happening is meiosis, that means that four new cells will be originated from a cell that's dividing.
So, four new cells each one with a nucleus, that means 4 nuclei in total.
If this was mitosis, only 2 new cells would be formed which means 2 nuclei
3. The number of chromosomes depends on your picture/exercise.
The answer would be half of the number of chromosomes that you started in the meiosis 1.
This time, chromosomes won't have an X shape since the copies were separated. At the end of the process, each chromosome has just one chromatid.
Answer:
food webs
Explanation:
Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. ... Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environ
Answer: Neutral
Explanation:
“6.5 to 7.5—neutral. over 7.5—alkaline. less than 6.5—acidic, pH less than 5.5 are considered strongly acidic.“
