Answer:
Comparison microscope combines two microscopes into one module. It helps the viewer see what is under each of the lenses at the same time.
Explanation:
The comparison microscope was developed by a chemist for use in the identification of fire bullets and cartridge cases.
Answer:
In anaphase, the shortest stage of mitosis, the sister chromatids break apart, and the chromosomes begin moving to opposite ends of the cell. By the end of anaphase, the 2 halves of the cell have an equivalent collection of chromosomes. In telophase, 2 daughter nuclei form. The nuclear envelope beings to reappear.
Answer:
D. Phloem has a two-way flow of materials,
Explanation:
Only D is the correction option. Food can flow in each direction of phloem. By contrast, water flows in one direction in xylem.
It is incorrect to say that phloem is only found in leaves, and it only transport water.
The pure substance within chemistry is a very simple concept to grasp. Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity.