Answer:
understanding how biotic and abiotic factors influence the size of groups of interbreeding individuals.
studying interactions among populations of organisms that inhabit the same area.
Explanation:
Population ecology is a branch of ecology that deals with the study of interactions of different populations of organisms living in the same area at a particular time.
Population itself refers to a group of organisms living in the same area that are capable of interbreeding.
Population ecologists are ecologists that specialize in the study of population ecology.
The study of ecology itself involves how biotic (living factors) or abiotic (non-living) factors of the environment interact with living organisms whether at individual level, population level, community level or ecosystem level.
Hence, population ecologists would be interested in:
A subfield of ecology called population ecology looks at how various populations of animals interact when they are all present in the same place at the same time.
Thus, A population is a collection of able to interbreed organisms that live in the same region.
Ecologists who focus on population ecology are known as population ecologists.
Ecology is the study of the interactions of biotic (living factors) and abiotic (non-living) environmental elements with live species, whether at the individual, population, community, or ecosystem level.
Thus, A subfield of ecology called population ecology looks at how various populations of animals interact when they are all present in the same place at the same time.
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B. gel electrophoresis
C. karyotypes
D. haplotypes
Answer:
The correct answer is option A. restriction enzymes.
Explanation:
Restriction enzymes or restriction endonucleases are enzymes that identify a particular DNA sequence, knowns as restriction site, and cuts the DNA within or adjacent to restriction site.
Restriction enzymes also known as biological scissors because of their ability to cut DNA at a specific sequence.
EcoR I, isolated from the bacterium Escherichia coli, is a restriction enzyme that restricts DNA between the G and A on each strand in a particular DNA sequence.
Thus, The correct answer is option A. restriction enzymes.
B. water contains halt as many hydrogen atoms as oxygen atoms
Ć water molecules tend to push away from each other
D. the chemical formula for water is H.O
Water is made up of atoms bonded to form molecules, it contains twice as many hydrogen atoms as oxygen atoms, and water molecules tend to push away from each other.
A. Water is made up of atoms bonded to form molecules.
B. Water contains twice as many hydrogen atoms as oxygen atoms.
C. Water molecules tend to push away from each other.
D. The chemical formula for water is H2O.
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Answer: a
Explanation:
because water is 2 hydrofen atoms bonded with an oxygen atom
All the options given describe a force that involves contact except for the force exerted by magnets. Thus, the correct option is C.
Magnetic force is the force exerted by magnets. It can be described as the effect exerted on a charged particle due to the magnetic field of the other particle.
It is a consequence of the electromagnetic force, which is caused due to the movement of electrically charged particles.
Two objects that are oppositely charged will have a magnetic force of attraction, whereas two objects that have the same charge will have a magnetic force of repulsion.
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Your question is incomplete. The full question probably might be:
Which of the following is an example of a non-contact force?
(a) The force exerted by us to lift a bucket
(b) push a stationary car
(c) The force exerted by magnets
(d) Force due to friction
Answer:
Gravity, Electrostatic force, Magnetic force
Explanation:
A non-contact force is a force that is applied to an object by another object without contact. Gravity, electrostatic force, and magnetic force all don't need two objects to be touching in order for them to work.
On the other hand, an example of a contact force is friction, because it can only occur if two objects are touching. If you want to tell the difference between a contact and non-contact force, just ask yourself if it can occur if the two objects are not touching. If it can occur while two objects aren't touching, it is non-contact, and if it can't, it is contact.
b. production of oxygen
c. consumption of water’s oxygen
d. large source of energy
The correct answer is c. consumption of water's oxygen
Excessive growth of algae in the water bodies due to presence of nitrogen or phosphorus from the nearby is called algae blooms. The overgrowth of algae blocks sunlight for submerged plants. Algae bloom may also release toxins in the ponds, lakes. On the death of algae, water dissolved oxygen gets depleted in their decomposition. Due to lack of oxygen other aquatic life unable to survive.
c would be your answer i just took the test
Answer:
the type of molecule-destroying enzyme he used
Explanation:
Frederick Griffith and Oswald Avery were scientific researchers who discovered DNA. Frederick Griffith began the research and Oswald Avery continued his research in 1944 when they made the discovery of DNA. When Avery repeated Griffith's research the experimental variable in Avery's experiment was the type of molecule-destroying enzyme he used.