B) filtration.
C) active transport.
D) passive transport
Answer:
D) passive transport
Explanation:
Passive transport is the movements of molecules or ions from the region of its higher concentration to its lower concentration or along the concentration gradient. Since passive transport occurs along the concentration gradient, no energy input is required in the process. An example of passive transport is simple diffusion or facilitated diffusion.
Substances like oxygen pass through the cell without the use of energy and move from an area of high concentration to an area of low concentration that occurs during passive transport.
Further Explanation:
Every molecules that passes across the cell has to cross the cell membrane barrier. The cell membrane is mainly made up of lipid bilayer which allows the hydrophobic molecules to pass throughit and restricts the entrance of hydrophilic molecules. It also allows the uncharged molecules to pass through the cell by simple diffusionand restricts the passage of charged molecules.
There occurs two basic type of transport-
Passive transport is the type of transport wherein energy is not required for movement of molecules across the cell. During this type of transport the molecules moves from high concentration gradient to low concentration gradient.
The oxygen is an uncharged molecule that can easily pass through the cell from high concentration to low concentration without the expenditure of energy. In the active transport the molecules moves from low concentration gradient to high concentration gradient which requires energy in the form of ATP.
Osmosis is specifically used for the transport of water molecule from high concentration to low concentration gradient.
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Answer Details:
Grade: College Biology
Subject: Biology
Chapter: Cell membrane
Keywords:
Cell membrane, lipid bilayer, hydrophilic molecule, hydrophobic molecule, active transport, passive transport, diffusion, osmosis, ATP, concentration gradient, charged molecule, uncharged molecules.
b. inheritance of acquired characteristics
c. natural selection
d. survival of the fittest
5. Charles Darwin called the ability of an organism to survive and reproduce in its specific environment
a. diversity
b. fitness
c. adaption
d. evolution
6. Similar patterns of embryological development in different but related organisms are responsible for the formation of
a. homologous structures
b. analogous structures
c. Hox genes
d. intermediate fossil forms
7. If an allele makes up one half of the frequency of a population's allele for a given trait, its allele frequency is
a. 100 percent
b. 75 percent
c. 50 percent
d. 4 percent
8. The frequency of phenotypes for a typical polygenic trait is most often illustrated as
a. a scatter plot
b. a bell-shaped curve
c. a pie chart
d. a histogram
9. Which of the following events do biologists consider a random change?
a. directional selection
b. speciation
c. disruptive selection
d. genetic drift
10. Which of the following statements defines the members of a species?
a. They are temporarily isolated from each other
b. The are geographically isolated from each other
c. They mate and produce offspring
d. They have identical genes
4. The correct answer is option "B" which is the inheritance of acquired characteristics.
5. The correct answer is option "C" which is an adaption.
6. The correct answer is option "A" which is homologous structures.
7. The correct answer is option "B" which is 75 per cent.
8. The correct answer is option "B" which is a bell-shaped curve.
9. The correct answer is option "C" which is a disruptive selection.
10. The correct answer is option "D" which is that They have identical genes.
Homologous structures are similar physical features in organisms that share a common ancestor, but the features serve completely different functions.
Thus, the following are the answers to the given questions.
To learn more about Homologous structures click here:
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Answer:
B.
It is based on phylogeny.
Explanation: i just did a test on this, and this was a question
A result of harmful fishing practice where part of the catch is discarded and not used is called overfishing supertrawling bycatch longlining I think its either by catch or over fishing