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Oksanka [162]
3 years ago
15

Michelle is observing a sand sample under a microscope when she finds many perforated shelled organisms. Further testing reveals

that these shells are made of calcium carbonate. How should she classify these organisms?
Biology
1 answer:
torisob [31]3 years ago
8 0
After a thorough research, there exists a question that has the following choices.
<span>A.They are sarcodines, belonging to phylum heliozoa of protozoa. </span>
<span>B.They are radiolarians, belonging to phylum ciliata of protozoa. </span>
<span>C.They are foraminiferans, belonging to phylum sarcodina of protozoa.

The correct answer is letter (</span><span>C) They are foraminiferans, belonging to phylum sarcodina of protozoa.</span>
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When an atom or molecule gains one or more electrons, it is said to beA. reducedB. polarizedC. oxidizedD. energized
MArishka [77]
Ƒ An atom that gains one or more electronswill have a NEGATIVE charge. ƒ An atom that loses one or more electrons will have a POSTIVE charge. ƒ An atom that gains or losesone or more electrons is called an ION. ƒ A positive ion is called a CATION and a negative ion is called an ANION.

From this information above you can see its negative so it means it gets reduced
hope it helped

In this reaction the lead atoms gain anelectron (reduction) while the oxygen loses electrons (oxidation). Magnesium loses electrons and is therefore said to be "oxidized", whereas the chlorines gain electrons and are said to be reduced
and as you can see oxidation only happens when oxygen is reduced
4 0
3 years ago
The complement pathway is a critical mechanism for eliminating microbes, and is comprised of more than 30 proteins that are cons
BaLLatris [955]

Answer:

3. Antibody-independent pathways of complement activation rely on complement components that directly bind to microbial surfaces.

Explanation:

There are three pathways of complement activation:

  • The classical pathway.
  • The alternative pathway.
  • The lectin pathway.

The classical pathway is triggered by binding of C1 either to the pathogen surface or to antibody bound to the pathogen.

The alternative pathway is triggered by the spontaneous hydrolysis of soluble C3 to C3(H₂O) and initiates eventual deposition of C3 convertase on microbial surfaces.

The lectin pathway is triggered by the binding of mannose-binding lectin or ficolins to carbohydrate residues in microbial cell walls and capsules.

6 0
4 years ago
What does the ocular lens do in the compound microscope
Gnesinka [82]
The ocular<span>, or eyepiece </span>lens<span> that one looks into.</span>
6 0
3 years ago
Read 2 more answers
Insulin is made by pancreatic cells, packaged in small vesicles, and then released into the bloodstream. this describes what sor
aksik [14]

According to the research, the correct option is exocytosis. Insulin is made by pancreatic cells, packaged in small vesicles, and then released into the bloodstream. This describes <u>exocytosis</u> cell transport.

What is exocytosis?

It is the expulsion, by cells, of particles that, due to their size, cannot pass through the cell membrane.

In this sense, it is the process by which different types of molecules contained in a cytoplasmic vesicle of a cell are secreted. Insulin is released to the outside by exocytosis, intervening in the process of glucose entry into cells.

Therefore, we can conclude that according to the research, the correct option is exocytosis. Insulin is made by pancreatic cells, packaged in small vesicles, and then released into the bloodstream. This describes <u>exocytosis</u> cell transport.

Learn more about exocytosis here: brainly.com/question/1193597

#SPJ1

8 0
2 years ago
I just thought about this and i wanted to know do ants lay eggs?
lana66690 [7]

the worker ants lay eggs without mating but the worker ants dont have sperm cells tho

4 0
3 years ago
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