<span>Bromeliads are an example of mutualism where they create mini-ecosystems that house other small animals by collecting rainwater in their leaves. The bromeliad benefits from the nutrients when these organisms decompose when they die. Unlike the Pitcher plants which are predators, they actively trap insects and other small animals in their pitchers.
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Answer:
hypertonic to water and hypotonic to salt solution.
Explanation:
<em>When two solutions of unequal solute concentrations are separated by a permeable membrane, water molecules move from the solution with lower solute concentration to the solution with higher solute concentration until an equilibrium is reached. The solution with higher solute concentration is referred to as being hypertonic while the other one is referred to as being hypotonic.</em>
The cells of celery stalks have higher solute concentration in their cell saps compared to the surrounding fresh water. Hence, water keeps entering the cells, resulting in turgidity. The cells are therefore hypertonic to fresh water.
The salt solution however seemed to have more solute concentration compared to that of the cell sap of the celery stalks. This made the cells of the celery stalks to lose water to the surrounding solution, resulting in flaccidity. Hence, the cells are hypotonic to salt solution.
The answer is A. No more solute can be dissolved. Hope this helps :)
Answer:
The answer is D. Prokaryotes have one origin of replication but it proceeds in two directions.
Explanation:
DNA replication is a process in which in which one parental DNA strand acts as template to synthesize complementary daughter strand. There are specific sequences in DNA from where replication starts. These sequences are called origin of replication. In Eukaryotic cells due to large number of DNA many origins of replication are present. However, in prokaryotic DNA only one origin of replication is present that is bi-directional.
<u>Answer</u>: C) Hydrophobic interior, hydrophilic exterior
<u>Explanation</u>:
- The <em>plasma membrane</em> of the cell defines its boundary and separates its internal components from the external environment.
- The basic components of the plasma membrane include phospholipids, carbohydrates, proteins, and cholesterol.
- The plasma membrane is a phospholipid bilayer, with <em>hydrophobic</em> tails of the phospholipid projecting <em>inwards</em> and the <em>hydrophilic</em> exterior in contact with the external environment.
- <em>Due to this, the plasma membrane has a hydrophobic interior and hydrophilic exterior. </em>