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qaws [65]
3 years ago
9

What is the black/dark material that is visible in many of these onion cells?

Biology
1 answer:
Galina-37 [17]3 years ago
6 0

Answer:

C. cell membranes

Explanation:

the black/dark material that is visible in many of these onion cells is cell membranes.

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Describe the process of DNA replication.  Include an explanation of the role of each of the three enzymes involved in your discussion.

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What is the main reason scientist do experiments?
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A. to find out if a hypothesis is correct.
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In landscapes dominated by low-infiltration capacity, what is the first step in erosion?
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Organelles and other cellular material are held within a cell by which of the following?
PtichkaEL [24]
The answer is letter A.

<span>Organelles and other cellular material are held within a cell by a cellular membrane. These membranes are what consist of a cell's exterior.

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<span>Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.</span>

4 0
4 years ago
a marine biologist dredges up a small animal from the bottom of the ocean. it is uniformly segmented, with short, stiff appendag
Elden [556K]

Given the characteristics mentioned in the question, the animal must be an annelid.

<h3>What is an annelid?</h3>

Annelids, (Phylum name annelida) segmented worms, characterized by having body cavities (or body coelom), mobile bristles (or setae), and bodies segmented by transverse rings. The body cavity is reduced in leeches, and the bristles are devoid of some specialized morphology, including leeches. An important phylum of invertebrates in the animal kingdom, Annelida, consists of more than 9,000 species divided into three classes: Sea worms (polychaetes) are divided into motile and sedentary or tube-dwelling forms. earthworms (Oligochaeta); and leeches (Hildinea). Annelids are coelomic and tridermal.

General characteristics of annelids are:

  1. They show organization at the organ system level.
  2. Your body is segmented.
  3. They breathe through their body surfaces.
  4. The kidney is an excretory organ. They have well-developed circulatory and digestive systems.
  5. Common names for more familiar annelids include earthworms, sandworms, annelids, bristleworms, and leeches.

To know more about annelid, visit:

brainly.com/question/11400463

#SPJ4

4 0
1 year ago
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