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stiks02 [169]
3 years ago
6

Sally's teacher asked her to classify the organisms in a sample of pond water. One KEY feature can be seen that helped Sally rul

e out the kingdom Eubacteria. That was the presence of A) cilia. B) cell wall. C) organelles. D) chlorophyll.
Biology
2 answers:
bekas [8.4K]3 years ago
4 0
<span>Eubacteria are prokaryotic, which means that they do not have defined membrane limited nuclei. This means that Eubacteria do not have a nucleus or cell organelles. Thus the answer is C.</span>
andrey2020 [161]3 years ago
4 0

Answer:

c

Explanation:

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the fluid mosaic model defines the plasma membrane as a structure composed of multiple components, including phospholipid bilaye
Eva8 [605]

Answer: True

Explanation: The plasma membrane is a membrane the protects the cell and its environment. It regulates what goes inside and what comes out of the cell. .

Plasma membrane as a structure composed of multiple components, including phospholipid bilayer, carbohydrates, and other lipids. The phospholipids possess one head and two tails. The head is basically polar and hydrophilic (water-loving) while the tails are non-polar and hydrophobic (water-fearing).

The plasma membrane is decorated with proteins. Some protiens are extrinsic proteins that run halfway through the membrane, while others are called integral proteins that go entirely through the membrane. The function of these proteins is to serve as channels to allow the molecules to enter and leave the cell.

7 0
2 years ago
Plants, such as sunflowers, contain specialized receptor cells that respond to light and grow in the direction of a light source
loris [4]
Photoreceptor proteins are light-sensitive proteins involved in the sensing and response to light in a variety of organisms. Some examples are rhodopsin in the photoreceptor cells of the vertebrate retina,phytochrome in plants, and bacteriorhodopsin<span> and bacteriophytochromes in some bacteria.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
5 0
3 years ago
Without adding specific regulatory proteins, how might you stimulate transcription from the gene of interest relative to the tra
german

Answer:

By transfecting small activating RNAs

Explanation:

Small activating RNAs (saRNAs) are an emerging class of non-coding RNAs (ncRNAs) that are capable of activating gene expression at transcriptional level. The saRNAs are small double-stranded RNAs (dsRNAs) that bind to promoter sequences in order to activate the expression of target genes. These molecules are structurally similar to small interfering RNAs (siRNAs), i.e., they also have a size of 21 nucleotides and two overhang nucleotides at the 3' end of both strands.

4 0
2 years ago
List the 8 characteristics of life
Vlad [161]
<span>    8 Characteristics of Life
1. Reproduction
2. Cells
3. Genetic Material
4. Evolution/Adaptation
5. Metabolism
6. Homeostasis 
7. Response to Stimuli
8. Growth/Development</span>
6 0
3 years ago
Question 7 in the attachment, please help thank you so much!
sertanlavr [38]

Answer:

Here are the answers:

a. 4  Cell determination as an issue in the *rest is missing*

b. 4  They assumed that different ways of separating an embryo into two parts would be equivalent as far as the fate of the two parts was concerned.

c. 4  I and III only

Explanation:

The passage demonstrates the importance of two factors in the development of an embryo: cleavage planes of division of embryonic cells and cell differentiation.

Cleavage Planes:

Cleavage basically refers to the division of the zygote into a large number of cells called blastomeres. Cleavage planes are geometrical lines or orientations along which cleavage takes place. Since, all embryonic cells are the precursors of some type of body cells, the cleavage planes determine if the cells are adequate for growth and development.

Cell Differentiation:

Cell differentiation is the transition of an undifferentiated cell into a specialized one. For example, stem cells are undifferentiated cells that develop into progenitor cells that mature into a specific cell lineage. For an embryo to regenerate, the presence of adequate embryonic stem cells is crucial. Embryonic stem cells are present in abundance before the gastrulation phase of embryonic development, after which they rapidly start differentiating.

5 0
3 years ago
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