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saul85 [17]
3 years ago
6

Im sorry but i need the answer to this question to...

Biology
1 answer:
finlep [7]3 years ago
8 0

Answer:

A colloid is a heterogeneous mixture in which the dispersed particles are intermediate in size between those of a solution and a suspension. ... Because the dispersed particles of a colloid are not as large as those of a suspension, they do not settle out upon standing.

Hope that helps!♡

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A student crested a model to show the flow of energy in a terrestrial ecosystem.
mario62 [17]

Answer:

In an ecosystem, energy enters in the form of solar energy or light energy from sun. Solar energy is transformed into various other types of energies like kinetic energy, chemical energy, potential energy, etc; but it eventually leaves the ecosystem in the form of heat energy.

3 0
2 years ago
Which component of peanut butter rutf supplies essential amino acids?
Finger [1]
<span>Which component of peanut butter rutf supplies essential amino acids? Your Answer will be Peanut Butter </span>
4 0
3 years ago
Which of the forest management practices keeps the florist in a state of mid to late succession
Ivahew [28]

D. seed-tree cutting

3 0
3 years ago
Flatworms are the first organisms we have discussed with an anterior-posterior orientation. How does this affect their movement
Talja [164]
<h2>Anterior-posterior orientation</h2>

Explanation:

Flatworms have an anterior-posterior orientation and as a result more coordinated and deliberate movement is established  

  • Flatworms also called Platyhelminthes are a phylum of relatively simple soft-bodied invertebrate animals
  • They are the largest phylum of acoelomates and are found in marine,freshwater and even in some damp terrestrial environments
  • Movement in some flatworms is controlled by longitudinal,circular and oblique layers of muscle
  • Flatworms anterior end helps in moving towards their food while the posterior end ensures that these organisms walk away from irritants

                                   

6 0
3 years ago
Match the prokaryotic cell structures to the characteristic of life.
djverab [1.8K]

Answer:

1. Nucleoid: Prokaryotes do not have well defined nucleus. Instead, naked DNA or genetic material is found in the these cells which keeps floating freely in the region of cytoplasm called as mucleoid (nucleus-like). DNA carries the genetic information required for growth, development, metabolic activities and reproduction.

Hence, it must match with b. reproduction: DNA ensures that future generations will be similar to parents

2. Cell wall: Cell wall is the outermost layer surrounding the plasma membrane. It is composed of polysaccharides and is found in bacteria, fungi, and plant cells. In bacteria, it is generally composed of peptidoglycans. Antibiotic such as penicillin acts on the cell wall and creates pores in it which kills the bacteria.

Hence, it can be correctly matched with d. homeostasis: taking an antibiotic, such as penicillin, creates holes in the cell wall of some bacteria, so they lose water and die

3. Flagellum: It is a thread or hair like structure which serves the purpose of locomotion in the cells specially in bacteria, protozoa, spermatozoa etc. In bacteria, it helps in moving in the direction of food and moving away from inhospitable environment.

Hence, it can be correctly matched with e. responding to stimuli: move away from a less hospitable environment or towards a more hospitable environment.

4. Pilus: It is a hair like but rigid structure that protrude from the cell surface of the bacteria. It helps in the process of conjugation by forming a conncetion between cell surface of two bacteria.

Hence, it can be correctly matched with a. reproduction: exchanging genetic material in process of conjugation

5. Ribosomes: Ribosomes serve as the site of protein synthesis in the cell. Bacterial ribosomes are composed of two sub-units with sedimentary constant of 50S and 30S.

Hence, it can be correctly matched with c. maintaining homeostasis: protein is needed for enzymes and repairing structures

6. Cytoplasm: It is gel like material found within the cell (excluding nucleus in case of eukaryotes). All the metabolic activities of the cell generally take place in the cytoplasm of the cell.

Hence, it can be correctly matched with f. homeostasis: using energy, all chemical reactions are performed in the cytoplasm

4 0
2 years ago
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