The general trend shown is that the amount of crop that a farmer can harvest per year keeps increasing by adopting the genetically modified crops in the U.S. and it keeps growing steadily. If it keeps up the future of GM crops use will depend on the ability of the farmers to adopt best management practices and the acceptance of the consumer for products from GM sources.
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Answer:
The general trend shown is that the amount of crop that a farmer can harvest per year keeps increasing by adopting the genetically modified crops in the U.S. and it keeps growing steadily. If it keeps up the future of GM crops use will depend on the ability of the farmers to adopt best management practices and the acceptance of the consumer for products from GM sources.
Explanation:
B.The oils in the lotion enter the skin cells with the help of carrier proteins.
C.The oils in the lotion enter the skin cells by means of facilitated diffusion.
D.The oils in the lotion enter the skin cells by means of simple diffusion.
The right answer is D.
The absorption of molecules at the level of the skin is carried out by passive diffusion for the molecules of low molecular weight (lower than 400 Da), the skin being covered with a lipoprotein film rich in water by its stratum corneum, rendering it little-permeable.
This absorption may be variable according to factors related to the skin such as stratum corneum's thickness, the state of hydration, the presence of cutaneous lesions or individual variations.
External factors may also modulate percutaneous absorption such as contact time, iontophoresis or the presence of specific adjuvants.
(1) It regulates the secretion of digestive
enzymes.
(2) It promotes sperm production in males.
(3) It influences the development of adult sex
characteristics.
(4) It maintains blood sugar levels.
Answer:A
Explanation:just took the test
The advantage of an electron transport chain is that a small amount of energy is released by the transfer of an electron between each pair of intermediates.
Cellular respiration has three stages: glycolysis, the Krebs cycle and oxidative phosphorylation.
During oxidative phosphorylation, the transport of electrons through a series of intermediates is used to create an electrochemical proton gradient across the inner mitochondrial membrane.
As the electrons move in the transport chain, a small amount of energy is released, which is coupled to the active transport of protons into the mitochondrial inner-membrane space.
Subsequently, this proton gradient is then used to synthesize ATP by an ATP synthase.
In conclusion, the advantage of an electron transport chain is that a small amount of energy is released by the transfer of an electron between each pair of intermediates.
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