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Marina CMI [18]
3 years ago
6

A researcher is studying the number and arrangement of fimbriae covering the surface of a bacterial cell. Which type of microsco

py would be most useful for this purpose?
Biology
1 answer:
vredina [299]3 years ago
8 0

Answer:

The electron microscope

Explanation:

<em>Fimbriae are very tiny appendages of about 3 to 10 nm in diameter found on the surface of most Gram-negative and some Gram-positive bacterial cells. They are mostly utilized as a structure to adhere to one another, to other organisms, or any other surfaces.</em>

Fimbriae generally contain adhesins, a virulence factor that facilitates adhesion to surfaces and <u>due to their tiny size, they can only be viewed using the electron microscope</u> - the scanning electron microscope to be precise.

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levacccp [35]

Answer:

Sexual reproduction:

Pros: leads to greater genetic variation.

Cons: requires more time and energy.

Asexual reproduction:

Pros: Does not require finding a mate.

Cons: Produce less genetic variation.

Explanation:

Sexual reproduction is a type of reproduction in higher organisms, in which new individuals are formed by combining genetic information from two different types (sexes) of individuals.

Advantage: Sexual reproduction leads to higher genetic variation due to recombination between genetic material of female and male gamete during meiosis.

Disadvantage: Sexual reproduction is a time and energy consuming process as it needs interaction between mates and organisms which are produced sexually require more time for development.

Asexual reproduction involves formation of new organisms from a single parent organism without gamete fusion.

Advantage: Asexual reproduction requires less time and energy as it does not require finding a mate.

Disadvantage: Asexual reproduction produces less genetic variations as it involves only parent organisms (no mixing of genetic information) and the only source of variations are random mutations.

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3 years ago
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Which is one way that scientists ensure that data is reliable?
castortr0y [4]
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One of the ways we make sure data is reliable is by repeating and replicating experiments.

If we consistently get the same results, then this means that the data is both credible and reliable.

Hopefully, this helps! =)
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A lab is performed to study the effect of pH and heat on the function of the catalase enzyme found in carrot plants. What is the
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Which of the following is not a parenting style? A. authoritarian B. disorganized C. authoritative D. permissive
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Austin and Marissa should observe the number of open stomata on one leaf, mist the leaf with water, wait one hour, and count the number of open stomata again.

In the epidermis of tree leaves and needles, there are cell structures called stomata that play a role in the exchange of water and carbon dioxide between plants and the atmosphere.

Stomata, the tiny pores on the outside of leaves and stalks, control how gases enter and exit leaves and therefore, how plants as a whole function. On all periods, ranging from minutes to millennia, they adjust to regional and global changes.

Guard cells are a pair of specialized epidermal cells that make up stomata. By adjusting the size of the stomatal pore, stomata govern water loss and the exchange of gases between the plant and its surroundings.


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brainly.com/question/27780594
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