<span>The lysosomes are membrane-enclosed organelle, usually spherical. They contain a number of hydrolytic enzymes that are able to break down dfferent kind of molecules. However, to maintain the optimal conditions for enzymes to perform their function, pH in the lysosomes must bi acidic and thus maintained between 4.5 and 5.0. Apart from hydrolytic enzymes, the lysosomes contain substances involved in cell signaling and energy metabolism. </span>
Answer:
The scientist tested one variable to determine what caused the number of leaves to change.
Explanation:
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The main difference between deserts and steppes is the annual rainfall
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The lower parts of the brain function primarily in Survival, whereas the outer layer of the brain functions mainly in thought. The medulla oblongata is the lower half of the brainstem continuous with the spinal cord. The medulla contains the cardiac, respiratory, vomiting and vosomotor centres dealing with heart rate, breathing and blood pressure. The outer layer which is the space between the two hemispheres is the longitudinal fissure. The corpus callosum connects two sides and transfers signals from one side of the brain to another.
Three characteristics that are used to classify prokaryotes is by their shape, how they move, and how they get energy. Prokaryotes are only found in plants and bacteria because they need a cell wall to keep their structures.
Your answer is: D) By shape, how they move, and how they get energy
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