The difference that exists between the inner and outer planets is - D. None of the inner planets have rings, whereas all the outer planets have rings.
Planets in the solar system are divided into two groups on the basis of distance from the sun are Inner planets and outer planets. The inner planets are closer to the sun compared to the outer planets.
Inner planets:
- include four planets - Mercury, Venus, Earth, and Mars.
- Also called terrestrial planets
- small and rockier
- very less or no natural satellites
- No rings around them
Outer planets:
- include Jupiter, Saturn, Uranus, and Neptune
- called gaseous planets
- larger and gaseous (hydrogen or helium)
- numerous satellites
- found rings around them.
Thus, the correct option: D. None of the inner planets have rings, whereas all the outer planets have rings.
Learn more about planet ring systems:
brainly.com/question/1171242
Answer:
<h2>option
<em><u>b</u></em> is correct , dear</h2>
Explanation:
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Answer:
II and III
Explanation:
<em>I. All sons of these parents will be a hemophiliac.
</em>
<em>
II. A son who suffers from hemophilia received the hemophilia allele from his mother.
</em>
<em>
III. Half of the daughters of this cross are predicted to be hemophiliacs.</em>
Assuming the haemophilia allele is represented by h, the alternate form being H.
A woman that is a carrier will have the genotype 
.
A man who suffers from haemophilia will have the genotype 
Crossing both of them:
x = 
From the result of the cross, the following can be deduced:
- Half or 50% of the sons from the couple will be haemophiliacs.
- Any son that suffers from haemophilia received the allele from the mother.
- Half or 50% of the daughters from this cross will be hemophiliacs.
Hence, statements II and III are true.
A cell membrane completely made of a polar substance would be completely permeable to all ions present in the extracellular environment, thus disrupting unique ionic composition within the cell.
The given question is incomplete, the complete question is:
Steroids are cholesterol based hormones. Nerve Growth Factor (NGF) is a water-soluble signaling molecule. Both have essential roles in cell function and organismal development. How are they received by the cell? A) Receptors for steroids are located in the plasma membrane and receptors for NGF are located in the cytosol. B) Receptors for steroids and NGF are located in the plasma membrane, C) Receptors for steroids and NGF are located in the cytosol, D) Receptors for steroids are located in the cytosol and receptors for NGF are located in the plasma membrane
Answer:
The correct answer is option D, that is, for steroids the receptors are situated in the cytosol and for NGF the receptors are situated in the plasma membrane.
Explanation:
NGF or the nerve growth factor is the water-soluble signaling molecule, and steroids are the cholesterol-based hormones. Both possess important functions in cell activities and the development of organisms. They are attained by the cells with the help of receptors for steroids situated in the cytosol, and the NGF receptors situated in the plasma membrane.
The plasma membrane permits the hydrophobic molecules, that is, water-insoluble molecules to pass through it. The water-insoluble molecules are the steroids, therefore, it can easily go through the plasma membrane and thus possess receptors within the cytosol. On the other hand, the water-soluble or the hydrophilic molecules are the NGF, they fail to pass through the plasma membrane, and thus, possess receptors on the plasma membrane.
