Answer:
A hydrophobic hormone with an intracellular receptor.
Explanation:
Because of their chemical nature, hydrophobic hormones (like steroid or thyroid hormones) can cross the cell membrane and bind to its intracellular receptor forming a hormone-receptor complex. This complex will then bind a specific segment of the DNA and will act a transcription factor.
Answer:
<em>Photosynthesis is a critical component needed as a constant input into an ecosystem in order to keep it functioning. </em>
Explanation:
Photosynthesis is the main process by which food enters in an ecosystem.
Photosynthesis is the process by which plants produce their own food from sunlight. This energy by photosynthesis travels from one organism to another in the ecosystem.
In the process of photosynthesis, oxygen is also produced which is required by organisms for respiration.
Besides this, both abiotic and botic components of an ecosystem are equally useful for the proper functioning of an ecosystem.
The correct answer is C.
(The nonspecific response provides an immediate response, while the specific response involves a delay between exposure and response.)
- The non-specific immune response is the first line of protection from different types of pathogens and microbes such as skin (physical barrier). It is immediate response however, it is not specifics and it does not involve the recognition of pathogens.
- The specific immune response depends on pathogen recognition and therefore is long-lasting immunity and it takes time to be effective. This response includes B- cells, T-cells, phagocytic cells and NK cells.
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Answer: The citric acid cycle is a series of reactions that produces two carbon dioxide molecules, one GTP/ATP, and reduced forms of NADH and FADH2.
I hoped this helped! :)