Scientists often require keeping a stock of biological
collections because it is not possible for a scientist to every time go out and
get a sample. Scientists may require comparing several of his biological
subjects that might not always be found in the area, so it is important to keep
a collection. It depends on the type and size of the organism in question.
Certain organisms like butterfly may not be available in the area where the lab
is located. So the scientist has to make prior arrangement and keep a stock of
the organism.
1. Waterdrops stick to a window.
2. Waterdrops stick together on a surface.
3. The meniscus of water.
Mollusks does not have arms
All Mollusks have the traits; muscular foot, mantle and visceral mass but they do not have arms
Mollusks have the following characteristics:
- They are invertebrate animals
- They have soft and unsegmented bodies
- They are bilaterally symmetrical
- Examples includes: snails, squids, clams, octopus, oysters...etc.
Learn more about mollusks:
brainly.com/question/10442363
The reactants are the materials needed for the process: glucose and oxygen.
<span>The products are the materials produced during the process: carbon dioxide and water.
Hope this helps!
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Answer:
Cells are the simplest structure to fit all of the characteristics necessary to be considered alive.
Explanation:
The cell (from the Latin cellula, diminutive of cella, ‘hollow’) 1 is the morphological and functional unit of every living being. In fact, the cell is the smallest element that can be considered alive.2 In this way, living organisms can be classified according to the number of cells they possess: if they only have one, they are called unicellular (such as protozoa or bacteria, microscopic organisms); If they have more, they are called multicellular. In the latter the number of cells is variable: from a few hundred, as in some nematodes, to hundreds of billions (1014), as in the case of the human being. The cells usually have a size of 10 µm and a mass of 1 ng, although there are much larger cells.