True. Mitosis only happens in Eukaryotic organisms, although the process varies depending on the organism.
Answer:
In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain. Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.
Explanation:
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When a butter is treated with fatty acid desaturase,
the hydrogen atom will be removed and form a carbon double bond, which allow the
membrane to become more fluid. When temperatures change, a phase transition
occurs. If the temperature decrease, the membrane gels becomes solid which then
results to cracks and the imbedded proteins cannot partake in conformational
changes, thus it is important to maintain membrane fluidity.
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Answer: Active Transport
Active and passive transport are two biological processes which are occurring all the time in the cells and body. These processes provide oxygen and other nutrients to the cells and remove waste materials from the body. But both processes differ from each other on the basis of gradient and expense of energy.
Because In active transport, nutrients move from low concentrated region to high concentrated region on the expense of energy whereas, in passive transport, nutrients move from high concentration to low concentration without the use of energy.
ACTIVE TRANSPORT, molecules move against the concentration gradient.