Answer:
advantages
The DNA polymerase used in the PCR reaction is prone to errors and can lead to mutations in the fragment that is generated.
disadvantage
PCR involves repeated cycles of denaturation, amplification, and replication, in which segments of deoxyribonucleic acid (DNA) are continuously multiplied.
...
HELLLLPPPPP
1. Find the graph paper in your kit and graph your results by putting the generation number along the x-axis and the number of bears along the y-axis. When drawing the lines, use a different color to represent each type of bear. (Make sure to indicate which color goes with which type of bear.)
2. Summarize the trends you see in each population from each generation.
a. Dark bears-
b. Light bears-
3. Explain how this experiment demonstrated natural selection.
Based on the nature of their environment, natural selection will favor the bear type that is better suited to its environment.
What is natural selection?Natural selection is a process of evolution in which organisms which are better suited to their environment are selected for survival.
In the bear population, natural selection will favor each bear type that is better suited to its environment.
In cold and icy environments, the light bears are better suited to their environment and are naturally selected for survival.
In temperate and warm climates, dark bears are better suited to their environment and are naturally selected for survival.
Therefore, natural selection will favor the bear type that is better suited to its environment.
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Answer:
THIS PROBABLY ISNT 100% ACCURATE, AND BE SURE TO CHANGE UP SOME OF THE ANSWERS
1. Find the graph paper in your kit and graph your results by putting the generation number along the x-axis and the number of bears along the y-axis. When drawing the lines, use a different color to represent each type of bear. (Make sure to indicate which
color goes with which type of bear.)
Okay, this is REALLY simple. Just make a graph with the info given to you.
2. Summarize the trends you see in each population from each generation.
a. Dark bears— Dark Bears with their arms up always had double to amount of the Dark bears with their arms down, and past Generation 3 the Dark Bears had more numbers than the Light Bears
b. Light bears— Light Bears start off with only arms down, and when arms up bears are introduced, they are more common/prevalent for the majority of the generations, having usually twice as much as the bears with the arms down.
3. Explain how this experiment demonstrated natural selection.
This experiment shows natural selection by hosting events in which certain bears are put more at a risk than other bears, such as environment changes favoring dark bears, or bears with their arms up.
4. If the environmental situation changes, is it possible for a population to be restored?
Via adaptations, it is completely possible for a bears population to thrive again, but perhaps not with the same characteristics.
5. How can natural selection help explain how a population becomes extinct?
As the environment changes, it may favor a species less and less, which leads to their decline, if they are unable to change with the times and adapt, the species will go extinct as it is no longer fit in its environment.
6. Which generations saw a population altering incident? Use your imagination to invent a possible environmental incident that could have caused this shift in populations.
The Light Bears faced a decline, and most bears with their Arms Down faced a decline too. Light bears could be explained via environmental factors, such as their original habitat being snowy, and without the snow they're more visible given their lighter colors. Arms down could simply be a dominants v recessive trait
7. How can environment impact a particular population of a species?
If a certain species is not fit for the changes made in an environment, it could result in either their extinction, or a mutations/adaptations so that the species can continue to thrive.
8. What are some natural reasons that animals in a population might die?
Competition, not enough resources, environmental changes.
9. What are some man-made reasons that animals in a population might die?
Things such as deforestation, overhunting, and introducing invasive nonnative species.
10. What are some ways that man has helped animals maintain their populations?
Protecting endangered species, rehabilitating injured animals, making animal reservations, etc.
Explanation:
Choose an example of a protein that has quaternary structure
Answer:
hemoglobin, hemoglobin carries oxygen in the blood and it is made up of four subunits, two each of the α and β types.
Explanation:
Protein can have varying structures namely primary, secondary, tertiary and quaternary. An example of protein with a quaternary structure is hemoglobin.
What are different structures of protein?The function of protein is completely dependent on its folding. Protein can be folded into many types.
The macromolecule protein can have the following structural classification:
Primary structure: It is a linear chain of amino acids.Secondary structure: The linear chain folds to form secondary structure.Tertiary structure: it involves further folding of protein chain.Quaternaty structure: it is the spatial arrangement of the folded protein.Hemoglobin is one of the proteins that exhibits quaternary structure.
Thus, hemoglobin is an example of a protein that has quaternary structure.
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Which of the following is a negative consequence associated with both slash-and-burn and monoculture?
O Decreased yield
O Increased pollution
O Ecosystem disruption
O Reduced biodiversity
Answer:
Increased pollution I think is the right answer
Microorganisms that are removed by mucus are destroyed by the.
fungs it breaks down trees that are dead
Explanation:
are humans susceptible to kind of resource shortages that affect populations of tbe other species?
Answer: People are somewhat susceptible. When it comes to food, you can often see examples of famines in "underdeveloped" countries that are extremely harmful to their populations.
helpppp
What body systems interact and work to expel wastes from the body?
A.
nervous and excretory
B.
nervous and circulatory
C.
digestive and circulatory
D.
digestive and excretory
Answer:
A. and D.
The nervous system removes cervical and metabolic waste from the brain, helping prevent brain problems. Your digestive system cleans the body by removing toxins, and your liver works to clean. The excretory system cleans your blood, allowing for healthy blood that is free of waste.
If you cannot pick more than one option, I would go with D.
Describe the roles of the national and state governments in the amendment process?
Answer:
only three-fourth of states legislatures need to pass an amndment to the constitution
How would a harsh winter most likely affect the rabbit population size?
a. population decreases
b. population increases
c. population reaches carrying capacity
d. population completely dies off
Answer:
a
Explanation:
Because a harsh winter will cause food and weather to decrease and almost kill off the rabbits but some will still survive.
Which protist group is thought to be most closely related to animals?.
Answer:
Choanoflagellates are the closest relatives of animals. They are also single-celled protists and have a flagella at one end of their cell.
Explanation:
The closest living relative of the animal is the protist choanoflagellates, that reproduce sexually and asexually.
Choanoflagellates are marine and freshwater protozoa that are widely distributed around the world. They have a distinctive flagellum with a whip-like shape and a collar made up of shorter hairs, similar to the ‘collar’ cells that filter out food in sponges.
By feeding on bacteria and debris, they feed on their larger predators and bring dissolved organic matter back into the water column. In terms of both number and feeding rate, Choanoflagellates play a vital role in the microbial food web that sustains the global ecosystem.
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Which of the following is NOT one of the causes of ocean currents?
A. wind patterns
B. the planet's rotation
C. unequal heating of surface waters
D. the different seasons
pls help
Answer:
D.
Explanation:
Ocean currents do not change the different seasons nor the weather of the atmosphere.
hope this helps :)
Answer:d
Explanation:
Which cells are no longer capable of carrying out the process of dna transcription?.
The cells that is no longer capable of carrying out the process of DNA transcription is the Tracheids cells.
Tracheids cells
They are a long and tapered lignified cell in the xylem of vascular plants. The main functions of tracheid cells are to transport inorganic salts and water, and they also provide structural support for trees.
Therefore, tracheids cells is the cell which is no longer capable of carrying out the process of dna transcription.
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classify each organism as a carnivore and herbivore or an omnivore
A. blank Buffalo
B. blank bear
C. blank spider
D. blank cow
what is Archaebacteria
Answer:
Archaebacteria is an unicellular microorganisms belonging to the Archaea domain, which are genetically separate from bacteria and eukaryotes and often live in harsh environments.
Explanation:
Answer:
microorganisms that are similar to bacteria in size and simplicity of structure but radically different in molecular organization. They are now believed to constitute an ancient intermediate group between the bacteria and eukaryotes.
Explanation:
The Archaea (or Archea) are a group of single-celled organisms. The name comes from Greek αρχαία, "old ones". They are a major division of living organisms. Archaea are tiny, simple organisms.
What structural classification describes this neuron?.
Answer:
Structural classification of neurons
Explanation:
Structural classification of neurons is based upon the number of processes that extend out from the cell body. Three major groups arise from this classification: multipolar, bipolar, and unipolar neurons. Multipolar neurons are defined as having three or more processes that extend out from the cell body
The _____ theory is the theory of color vision that suggests three types of cones in the retina each make a maximal chemical response to one of three colors: blue, green, or red.
Answer:
It's the Trichromatic theory
Explanation:
How can you relate the structures
to those of bryophytes in terms of evolutionary trend
Answer:
Because ferns and fern allies posses true vascular tissues, they can grow to be much larger and thicker than the bryophytes.
Bryophytes mark the transition to land and the origin of vascular plants, and hence, link the seed and vascular plants to their algal ancestors.
Molecular phylogenetic studies conclude that bryophytes are the earliest diverging lineages of the extant land plants. They provide insights into the migration of plants from aquatic environments to land.What is evolution trends?Evolutionary trends, whether macro evolutionary events across higher taxa and large spans of geologic time, or more circumscribed events within smaller clades, have long played a prominent role in evolutionary theory.
The identification of trends in the history of life has been used as evidence for the increasing adaptions of life, for evolutionary progress, and more recently as support for selection at multiple levels.To know more about evolution here
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help me with this exammm <3 pls and ty
https://brainly.com/question/27078218
Answer:
which is an example of interependence between species
Explanation:
True or false. A trna with an anticodon complementary to the stop codon catalyzes the reaction by which translation is terminated.
Answer:
It is false not true that is the answer
Organisms in an ecosystem are independent. do you think humans have interdependent relationships with other organisms? explain your response
Answer:
Yes, humans are interdependent with many other organisms. We require animals to eat, as well as plants. All living things depend on their environment to supply them with what they need, including food, water, and shelter. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive.
Explanation:
Question 2 of 10
What is the name of the planet next to the label A?
Solar System
A
EARTH
SUN
O A. Saturn
O B. Mars
OC. Venus
Answer:
C venus
Explanation:
This can be learnt as Mary's violet eyes makes John stay up nights
M-mercury
V-venus
E-earth
M-mars
J-jupiter
S-saturn
U-uranus
N-neptune
How would an increase in atp affect the rate of glycolysis?.
Answer:
The rate would slow down.
Explanation:
as ATP binds to the regulatory site, lowering phosphofructokinase activity.
What is the climate and vegetation like in the temperate woodland?
Answer:
woodlands and lush vegetation
Explanation
Deciduous woodlands contain trees with broad leaves such as oak, beech and elm. They occur in places with high rainfall, warm summers and cooler winters and lose their leaves in winter.
Answer:
high rainfall, warm summers and cooler winters
the landscape contains oak, beech, elm, Lichen, moss, ferns, wildflowers and other small plants
The temperature in a temperate woodland & shrubland biome is hot & dry in the summer with temperatures up to 100 degrees F. The winter is cool & moist with the low temperature about 30 degrees F. Precipitation: Annual rainfall is 10-17 in.
Hope This Helps
The executive branch?
Answer:
The executive branch carries out and enforces laws.
Explanation:
hope this helps
What property of water describes the molecule as acting like a tiny magnet?
Answer:
Intermolecular forces. Water is a dipole and acts like a magnet, with the oxygen end having a negative charge and the hydrogen end having a positive charge. These charged ends can attract other water molecules.
HOPE THIS HELPS, HAVE A GREAT DAY!!~
Explanation:
Hello Fluffy Stawberry~
Answer: Intermolecular forces
Hope this helps have a nice day
From: Fluffy Stawberry~
Which types of cells form a cell plate during cytokinesis
Answer:
animal daughter cells
Explanation:
Instead of plant cells forming a cleavage furrow such as develops between animal daughter cells, a dividing structure known as the cell plate forms in the cytoplasm and grows into a new, doubled cell wall between plant daughter cells. It divides the cell into two daughter cells.
A chestnut-colored horse mates with a white-colored horse to produce a brown and white spotted offspring. What is the type of inheritance pattern?
A.
codominance
B.
incomplete dominance
C.
polygenic
D.
recessive
E.
single gene dominant
Reset Next
Answer:
A. Codominance
Explanation:
people poisoned by co2 are often given 100% o2 in a room with two to three times normal atmospheric pressure. explain why more oxygen would enter their blood under these conditions
oxygen
Explanation:
oxygen needs to be carriers and put
what bone was in the spinal cord
Answer:
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column.
Explanation:
The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
A marble tile would feel cold as compared to a wooden tile on a winter morning, because the marble tile
(a) is a better conductor of heat than the wooden tile.
(b) is polished while wooden tile is not polished.
(c) reflects more heat than wooden tile.
(d) is a poor conductor of heat than the wooden tile
Which of the following is not needed by living organisms?
A.alcohol
B.air
C.energy
D.water
Answer:
alcohol
Explanation:
it is very bad for our health so we dont need it in our life