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3 years ago

Please define the terms, don’t copy and paste. I’m giving 15 points for it

Biology

1 answer:

iren2701 [21]3 years ago

7 0

Algae: any of numerous groups of chlorophyll-containing, mainly aquatic eukaryotic organisms ranging from microscopic single-celled forms to multicellular forms 100 feet (30 meters) or more long, distinguished from plants by the absence of true roots, stems, and leaves and by a lack of nonreproductive cells in the reproductive structures: classified into the six phyla Euglenophyta, Crysophyta, Pyrrophyta, Chlorophyta, Phaeophyta, and Rhodophyta.

Amboeda: any of a large genus (Amoeba) of naked rhizopod protozoans with lobed and never anastomosing pseudopodia, without permanent organelles or supporting structures, and of wide distribution in fresh and salt water and moist terrestrial environments

Asexual reproduction: reproduction (as cell division, spore formation, fission, or budding) without union of individuals or gametes

Cilia: minute short hairlike process often forming part of a fringe

Diatom: any of a class (Bacillariophyceae) of minute planktonic unicellular or colonial algae with silicified skeletons that form diatomaceous earth

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<h2>What is Phosphorylation?</h2>

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Explanation:

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3 years ago

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In a lab a scientist observes the following features under the microscope. Which of these observations supports Cell Theory?

natta225 [31]

The question is incomplete as it does not have the options which are:

I. Cardiac cells are joined by gap junctions and contain three nuclei.

II. Mature platelet cells do not contain a nucleus, but do contain mitochondria.

III. Spermatogonia undergoing mitosis.

IV. The bulk of tissue samples from endocrine glands contain cells as their main building blocks.

Please choose from one of the following options.

A. II only

B. I and III

C. II and IV

D. III and IV

Answer:

The correct answer will be option-D) III and IV

Explanation:

The cell theory was proposed by the Schleiden, Schwann and Rudolf Virchow which stated that:

1. The structural and functional unit of life is a cell.

2. The cells arise from the pre-existing cells only

3. The living organisms are composed of the cells.

In the given question, since the cell theory did not proposed statements related to the cell organelles and cell to cell communication as discussed in the I and II, therefore, they do not fulfil the conditions of the cell theory.

The process of mitosis is the process related to the cell division which forms the daughter cell from a parent cell and the tissue is made of the cell which is the basic unit of life, therefore, fulfil the condition of cell theory.

Thus, Option-D is the correct answer.

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