Answer:
There are 8 planets in our solar system. 4 are inner planets and the other 4 are outer planets. Our planet is the 3rd planet from the sun and we are the inner planets.
Explanation:
Wow. None of these are great. However, I think that A is the best answer. If you do a biodiversity study and find there is an open niche in the ecosystem, this may indicate an opportunity for an invasive species to enter the ecosystem.
Answer:
to enable the membrane to stay fluid more easily when the temperature drops.
Explanation:
The lipid bilayer is made of amphipathic phospholipids. The non-polar tails of phospholipids make the core of the membrane while the polar heads are exposed to the surrounding watery medium. At lower temperatures, tight packing of non-polar tails makes the membrane more rigid. Cholesterol is an amphipathic polar head group and non-polar steroid nucleus and hydrocarbon chain.
Interaction of non-polar part of cholesterol with non-polar tails of membrane phospholipids makes the membrane less rigid at lower temperatures. Thereby, cholesterol serves as an important structural component of membranes of some organisms such as animals and helps maintain the fluidity of the membrane at lower temperatures.
To introduce a new type of species into the environment
Hope I helped
