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Usimov [2.4K]
3 years ago
7

A __________ is a polysaccharide layer that lies outside the cell wall and is not easily removed.

Biology
1 answer:
Vikki [24]3 years ago
3 0
I believe it is a CELL CAPSULE. They are found in prokaryotic cells such as bacteria. Hope that helps. Have a nice day.
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Climates are described using familiar elements of the weather. Which two of these elements are commonly found in the description
Dafna11 [192]

<u>Answer</u>:

<em>Annual precipitation and average temperature </em>

<u>Explanation:</u>

Weather is referred as the temperature and precipitation recorded daily but climate is the <em>average temperature, precipitation, atmospheric pressure, wind and humidity recorded annually</em>.

Climate is also meant by the average weather of a place.  The elements that are commonly found in <em>description of the climate is annual precipitation and average temperature of a place or region</em>.

Precipitation is defined as product obtained by the <em>condensation of the water vapour present in atmosphere</em> and which falls under the <em>action of gravity.  </em>

7 0
3 years ago
The only phylum in the group Parazoans is ________. A. Porifera B. Cnidaria C. Lophotrochozoa D. Ctenophora E. Ecdysozoa
ludmilkaskok [199]

Answer:

A. Porifera

Explanation:

Parazoan is a sub-kingdom of animal consisting only of the phylum of sponges (porifera), having two tissue layers only and lacking a nervous system and true digestive cavity.

They have certain characteristics like: sponges are marine, but there are some freshwater sponges that enjoy their water without salt. Most sponges do not have any type of symmetry, but some are radially symmetrical and they come in a variety of shapes, colors, and sizes, they are multicellular, heterotrophic and lack cell walls. Unlike other organisms, sponges lack true tissues and organs.

The mesohyl functions as an endoskeleton in most sponges, and is the only skeleton in soft sponges. This mesohyl is stiffened by mineral spicules, by spongin fibers or both.

7 0
3 years ago
How do cells know that there is something wrong with the DNA?
sveta [45]
The short answer is that cells respond to the chemical environment in which they find themselves. The cells around them, the specific conditions, and feedback from the environment all create specific chemical cues that inform the cells to which genes should be expressed, and in what amounts. Chemicals include hormones, cytokines, general signaling molecules, such as cAMP, etc.


i literally hopped on google for this, lol.
i hope this helps though. :)
8 0
4 years ago
Spiders use their silk to build strong webs, to trap bugs, to save themselves from falling, to wrap their eggs safely, and even
11Alexandr11 [23.1K]

Answer:

The missing word is things.

However, the real question is how one material can serve so many purposes? That is what makes it possible for the spiders web to have a high "utility" value?

The answer is in how the spiders make the silk.

Explanation:

So it interesting to note that spiders do not make only one kind of silk. They vary depending on what purpose it's doing serve.

The most common type is Dragline Silk.

Dragline Silk: This contains spidroins. Spidroins fall under a category of a protein called scleroproteins. Because of its composition, a strand or fiber of Dragline has the same tensile strength as steel albeit more flexible. That is if one produced steel the diameter of a spider's silk, and compared both for strength, the silk will be stronger.

The spider produces Dragline silk in its silk glands where they are as viscous as a paste. From here is pulled out or extruded into lines of silk.

Other types of spider silk are:  

  1. Capture-spiral silk. Also known as the Flagelliform, they are used for securing lines of the web. They are adhesive, very elastic, and possess high tensile strength.  
  2. Tubiliform silk: They are also called Cylindriform. Its main use is for the protection of spider eggs. It is used to make a sac for which protects eggs. This type of silk is the toughest.
  3. Aciniform silk: For preserving fresh prey.  
  4. Minor-ampullate silk: This type is used by spiders for creating temporary support while they are spinning a web. Etc.

Cheers

7 0
3 years ago
Consider this scenario between Josh and Julie Josh met Julie in line at a taco truck near campus and noticed she ordered extra h
Artyom0805 [142]

Answer:

The right matching of the scenario in the question are as follows:

1. OBSERVATION: Josh noticed that Julie ordered extra hot peppers and added hot sauce to her food  

2. QUESTION: Josh wondered how to cook spicy Mexican food.

3.  HYPOTHESIS: Josh decided jalapenos would be a good ingredient to add spice to the recipe.

4.  EXPERIMENT: After chopping the jalapenos, he slowly added some to the enchilada filling, tasting as he went until he thought it was spicy enough.  

5. RESULTS: Julie thought the enchiladas were delicious and exactly the right level of spice.  

6. CONCLUSION: Josh determined that since Julie liked the meal, adding jalapenos to the recipe was a good way to make it spicy.

Explanation:

Scientific method is an organized steps of procedures that scientists used to study and gather knowledge about different phenomenons. The systematic steps of scientific method start with observation, the observed phenomenon usually make a scientist to ask questions that he doesn't have an answer to. This will prompt him to formulate an hypothesis and set up an experiment to see if his hypothesis is true or not. The result he obtains from the experiment will determine the type of conclusion he will make about his earlier observation. By following these steps, scientists usually obtain useful  information that bring progress and advancement to humanity.  

5 0
3 years ago
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