Viruses can be seen with a light microscope.
a. True
b. False

Answer:

The correct answer is -  amoeba: pseudopod; euglena: flagellum; paramecium: cilia

Explanation:

Protists use different type of structures for their movement known as pseudopods, flagella, and cillia.

Pseudopods are the structures found in amoeba in which flowing of protoplasm moves the amoeba forward.

A euglena moves by strikes or whip its flagellum, that is a long appendages, like propeller of a helicopter.

Cilia are thin, very small tail-like structure that stretched outward from the of body of paramecium.

Thus, the correct answer is -  amoeba: pseudopod; euglena: flagellum; paramecium: cilia

Explanation:

Pigmentation is the coloring of a person's skin. When a person is healthy, their skin color will appear normal. In the case of illness or injury, the person's skin may change color, becoming darker (hyperpigmentation) or lighter (hypopigmentation).

Final answer:

To prevent kitchen tools made from iron from rusting, one can paint them, use stainless steel alloys, or store them in a way that prevents contact with air and water.

Explanation:

To help preserve kitchen tools from rusting, there are few precautions that you can take. The first method is painting iron tools. Water and oxygen come into touch with iron and cause rust, but a coat of paint can stop this from happening. The iron is immune to rust as long as the paint is still on it.

Another strategy is alloying the iron with other metals to form, for example, stainless steel, an iron alloy containing a small amount of chromium. Chromium tends to collect near the surface, where it erodes and forms a passivating oxide layer that protects the iron from rusting.

Lastly, storing your iron kitchen tools under kerosene or mineral oil or in sealed containers could prevent rust by limiting their contact with air and water.

Learn more about Preserving Kitchen Tools here:

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Answer: Polymers are complex molecules composed of random sequences of atoms.

Explanation:

Polymers are macromolecules made up of repetitive units, linked through covalent bonds. They can be classified as Natural (Wood, rubber, protein) or Synthetic (PVC, polystyrene, polypropylene). Polymers are composed of macromolecules obtained by the polymerization of simple compounds called "monomers". Regarding the shape of the polymeric chain, polymers can be classified into:

linear, when the chain has no branches;

branched when the chain has small side chains (branches);

cross-linked when the chains are joined by chemical crosslinks

Answer:

Hi!

1. Epithelial cells (I believe)
2. Nervous System
3. Skeletal System

Explanation:

1. Epithelial tissue helps cover your "exterior sources". Therefore I'm pretty sure the first one is Epithelial cells.
2. The Nervous System has to do with sense of feeling or sense of touch mostly. The Nervous System controls everything you do!                                     ex. touching a table uses the nervous system.
3. The Skeletal System helps your body move and supports a lot of different things in your body. All of those other options are not correct just because they do not support. Here is what I mean in the shortest way possible:

• Circulatory- has to do with your lungs
• Lymphatic- involves a network of vessels
• Excretory- elimination of waste

Therefore these are your answers #1, #2, and #3.

Hope this helps!