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sveta [45]
3 years ago
10

You are told that the cells on a microscope slide are plant, animal, or bacterial. You look at them through a microscope and see

no membrane-bound organelles. You conclude correctly that the cells:
Biology
1 answer:
Gwar [14]3 years ago
3 0

Answer:

These cells are eukaryotic plant cells.

Explanation:

Plant eukaryotic cells form the tissues of plants. They are similar to animal cells in that they have many organelles in common, but differ from them because they have cell wall, chloroplasts and vacuoles, appropriate to the way of life of plants. Moreover, in this type of cell it is not possible to visualize membrane-bound organelles due to the presence of the cell wall.

The cell wall or cellulosic wall is exterior to the plasma membrane surrounding the cell. It is a more or less thick wrap, composed of a polysaccharide called cellulose.  Its function is to support the plant, which is why it is also called the skeletal cellulose membrane.

There are pores in the cellulosic walls through which pass very thin cytoplasm bridges called plasmodesmos. Through plasmodesms there is communication between the cytoplasm of neighboring cells.

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They eat by a process called phagocytosis  whenn entire food is digested
3 0
4 years ago
An island frog population is made up of two color phenotypes, green and brown, caused by different coloration alleles.The freque
butalik [34]

In this case, brown frogs increase and green frogs decrease, whereas natural selection would cause this change in allele frequency.

<h3>What is natural selection?</h3>

Natural selection is the main evolutionary force by which populations change (evolve) across time.

Natural selection leads to the change in the allele frequencies depending on the more adapted phenotypes in a given environment.

In conclusion, brown frogs increase and green frogs decrease, whereas Natural selection would cause this change in allele frequency.

Learn more about natural selection here:

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6 0
2 years ago
If the vibrations have a low frequency, the sound is heard as a _______. If the vibrations have a high frequency, then the sound
spin [16.1K]

D.

If the vibrations have a low frequency, the sound is heard as a __low-pitched sound_____. If the vibrations have a high frequency, then the sound is heard as a __high-pitched sound_____.

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High pitched sound is of higher frequency because they make the air molecules vibrate much faster than low-pitched sound. Due to their high frequency, their wavelength is shorter (Remember wavelength and frequency are inversely proportional). Vice versa is true to the low-pitched sound. They vibrate air molecules slower than high-pitched sound. Their wavelength is longer and frequency smaller.

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3 0
4 years ago
Read 2 more answers
Now, suppose Lauren wants to buy exactly 2 bracelets and 2 other pieces of jewelry. There are ways to select 2 bracelets. There
Tema [17]

Answer:

There are 15 ways to select 2 bracelets.

There are 10 ways to select 2 pieces of jewelry that are not bracelets.

How many ways can Lauren select 4 pieces of jewelry, of which exactly 2 are bracelets?

150

hopes this helps :)

Explanation:

3 0
3 years ago
Which is the first step in the life cycle of a plant that reproduces sexually?
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It starts with a seed, than when the seed is on the ground it germinates.
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3 years ago
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