Answer:
option B) intracellular receptors are present only in target cells.
Explanation:
The cell membrane or plasma membrane is composed of phospholipids and thus hydrophobic in nature, this allows the lipid soluble signaling molecules to cross the membrane. The cell membrane of all cells consist of phospholipids thus hydrophobicity of each cell membrane allows lipid soluble signaling molecules to pass through the plasma membrane. The testosterone cross the membranes of all cells but affect only target cells because of intracellular recepters that are located in target cell. The binding of signaling molecules to recepter generates a response. Thus, option B is correct.
Breast milk composition and frequency of demand feedings separate a carrying species from a nesting species.
<h3>What does patterns of parental care mean?</h3>
The patterns of parental care can be defined as stimuli that shape the relationship between parent and offspring in different species.
Carrying species are those species where parent care do not involve building nests for their offspring (conversely to nesting species).
In conclusion, breast and demand feedings separate a carrying species from a nesting species.
Learn more about nesting species here:
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Answer:
Milk is all bad
Explanation:
A 2012 study published by the American Medical Association showed that the most active girls who consumed more dairy and calcium actually experienced more stress fractures compared with those who consumed less. Similarly, another study found that the more milk teenagers consumed, the more bone fractures they later experienced as adults.
More waste has been a negative impact of technology, as more human labor is not a bad thing as it employs people and earns them money to support themselves and their families. Less farming and less access to food are not a direct effect of technology; in fact, technology improves farming and allows more crop yield. Hope this helps! :)
