Answer:
The external coverings of diatoms are made up of frustule which contains chloroplasts. Chloroplast is a organelle that has chlorophyll pigment that captures light energy from the sun and utilize it for photosynthesis. Slime molds comes under category of fungi. Their cell wall is made up of cellulose. They undergo spore formation, their spore sac get rupture as cellulosic layer is light and releases spores which settles on the decaying plant matter.
Horizontal or transverse or axial cut is if you cutting the object with the horizontal plane. The cut would look like ( -- ).
Vertical or longitudinal is cutting in the vertical plane. The cut would look like ( | )
There is also coronal cuts which were a cut with direction from front to back.
It can be from macroevolution
A Triassic extinction is a boundary between the Triassic<span> and Jurassic periods, 201.3 million years ago, and is one of the major </span>extinction<span>events of the Phanerozoic eon, profoundly affecting life on land and in the oceans.</span>
It is important because it helps to understand the vital connections between plants and animals
