Answer is D. The phosphate group of membrane lipids are negatively charged.
The cell or plasma membrane is a bilayer of phospholipids. The two phospholipids layers are opposite to each other. Each phospholipid molecule consists of a phosphate group and a lipid. The phosphate form inner and outer layers of hydorphilic and are negatively charged 'heads' and lipid forms the tail, hydrophobic and non-polar. Since phosphate is negatively charged it repels negatively charged molecules and do allow them to pass through it.
The answer is yolk sac
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Answer:
Groundwater is the water available under Earth's surface in soil pore spaces and in the fractures of rock formations. A unit of rock also known as a unconsolidated deposit is called an aquifer when it can yield a usable quantity of water.
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Answer 1: The function of the apple cider vinegar in the marinade.
1. It can be used as an digestion aid as it can produce acids in the stomach which will facilitate in digestion.
2. It is added to provide flavor to the marinade.
3. It is capable of killing the harmful bacteria in the marinade.
Answer 2: The function of yeast flakes in the marinade.
1. It is added to the marinade so as to provide a creamy, and cheese like flavor to the marinade.
2. It also aids in digestion.
3. It exhibit the antibacterial as well as antiviral properties.
4. It is free from sugars, and gluten and also contains Vitamin B12, and iron.