More specifically, in the first part of anaphase — sometimes called anaphase A — the kinetochore microtubules shorten and draw the chromosomes toward the spindle poles.
What is the main difference between using fixed versus living cells when observing the cell cycle?.
Fixed cells are refers to static cells that remain unchanged over time while living cells refers to dynamic cells that move and change over time.
What are Fixed cells?Fixed cells are cells that are preserved in a condition that is as close to “life-like” as possible.
These cells usually die during this process, but their shape and contents are maintained for imaging purposes.
Further preparation for fixed cells are far easier to perform than live cells.
On the other hand, living cells are cells which are still alive and this makes cell imaging difficult.
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Which component of thermoregulation allows your body to maintain homeostasis after jumping into cold water?
Answer:
When your hypothalamus senses that you're too hot, it sends signals to your sweat glands to make you sweat and cool you off. When the hypothalamus senses that you're too cold, it sends signals to your muscles that make your shiver and create warmth. This is called maintaining homeostasis.
Explanation:
Image courtesy of NASA
On the map above, what landform is located at oval C?
A. the Sahel
B. the Sahara Desert
C. the Nile River Valley
D. the Atlas Mountains
Please select the best answer from the choices provided
A
B
D
Save and Exit
Next
Mark this and return
Answer:
Pretty sure it's C : The Nile River Valley.
Explanation:
At Oval C, there's a river shown in the shape of the Nile River so I'm 99% sure it's the Nile River Valley.
Answer:
b i just took this and this is the answers they give u please mark brainly
Explanation:
imagine you are visiting Iceland. your flight to Iceland from the east coast of the United States is shorter than your return flight. explain why. which current is responsible
Answer:
The main reason for the difference in travel time is due to the jet stream. The jet stream is high altitude wind that blows from the west to the east across the globe. Airplanes fly into the jet stream at 30,000 feet and then travel with these winds.
Explanation:
theres my answer
Answer:
The Gulf stream because it is a warm current which causes a difference in air pressure
Explanation:
What is meant by the clonal expansion of a b cell?.
Answer:
An activated B cell divides into cells that give rise to memory B cells and plasma cells.Thanks!
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Answer:
An activated B cell divides into cells that give rise to memory B cells and plasma cells.
Explanation:
Which could be the location where water emerges from the surface as a spring?
O 1
O 2
O 3
O 4
Follow the steps to simplify this expression. 2x(2 + 1) – 3(x + 3)
2x (2+1)-3(x+3)
= 4x+2x-3x
= 6x-3x
= 3x .
The venomous lionfish is native to the Indian Ocean and the South Pacific Ocean. This fish has recently been introduced into the Atlantic Ocean. Which is the most likely consequence of the introduction of this invasive species?
Native fish species will not be affected by the lionfish.
Native fish species will increase in population due to new prey species. Native predators will quickly decrease the population of the lionfish.
Native fish species will show reduced populations due to competition with the lionfish.
The most likely consequence of the introduction of this invasive species into the Atlantic ocean is that native fish species will show reduced populations due to competition with the lionfish.
Why would native species decrease in population?This has to do with competition. An invasive species cause harm to the ecosystem into which it is introduced. Most often, this is due to it out-competing native species for the available resources such as food. This results in a decrease in the population of the native species of fish in the Atlantic ocean.
Therefore, we can confirm that the introduction of this invasive species into the Atlantic ocean is that native fish species will show reduced populations due to competition with the lionfish.
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What features do plant cells have that animal cells lack?
A. cytoplasm and cell wall
B. cell wall and chloroplasts
C. cell membrane and chloroplasts
D. Nucleus and cell membrane
Answer:
B. Cell wall and chloroplasts
Explanation:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
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According to the graph on the right, what is the approximate carrying capacity of the white-tailed deer population?
100,000 deer
300,000 deer
600,000 deer
Based on the graph on the right, the approximate carrying capacity of the white-tailed deer population is 600,000 deer. At this population size, the line representing the deer population levels off and remains relatively stable. that is the last option.
What is carrying capacity?Carrying capacity refers to the maximum population size of a particular species that can be sustained by the resources available in a given environment over an extended period of time. The carrying capacity of an environment is influenced by factors such as the availability of food, water, shelter, and other resources that are necessary for the survival and reproduction of a species. When a population grows rapidly, the demand for resources can exceed the supply, leading to competition for limited resources.
Hence, based on the graph on the right, the approximate carrying capacity of the white-tailed deer population is 600,000 deer; that is the last option.
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Vessels that transport blood AWAY from the heart are ____, while vessels that transport blood TOWARDS the heart are ______.
Answer:
Vessels that carry blood away are arteries
Vessels that carry blood to are veins
Explanation:
Vessels that transport blood away from the heart are arteries.
vessels that transport blood towards the heart are veins.
What are arteries and veins and what do they do?
Arteries carry blood away from the heart, and veins carry blood toward the heart. With the anomaly of pulmonary blood vessels, arteries carry oxygenated blood and veins carry deoxygenated blood.
Arteries have thick walls with muscle tissue. Veins have thinner walls and use valves to keep your blood flowing.
Thus, arteries and veins are the correct options.
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Define population pressures which is a selective pressure.
Answer:
Selective pressures are environmental factors or influences which may lessen reproduction in a species’ population and therefore contributes to evolutionary change or even extinction through natural selection.
credits to google
Explanation:
A student looks through a microscope and sees a dark spot. Upon moving the slide he notices that the dark spot does not move. Indicate the two possibilities as to cause of the problem.
What were two consequences of the French and Indian War? Include the Proclamation
of 1763 in your response. How did the consequences lead to the American Revolution?
ASAP ASAP plz
Answer:
1. The French and Indian War began in 1754 and ended with the Treaty of Paris in 1763. The war provided Great Britain enormous territorial gains in North America, but disputes over subsequent frontier policy and paying the war's expenses led to colonial discontent, and ultimately to the American revolution.
2. In the long-term, the Revolution would also have significant effects on the lives of slaves and free blacks as well as the institution of slavery itself. It also affected Native Americans by opening up western settlement and creating governments hostile to their territorial claims.
+
ment will
Which bacterial taxa were overabundant before partial capture of oil began? Which two taxa
returned to normal abundance soonest? Why do you think their abundances decreased when
they did?
I
What does the dashed line on June 3 represent? How do you think this action by humans
changed the microbial community?
What does the solid line on July 15 represent? How do you think this action by humans changed
the microbial community?
If bacteria like Oceanospirillales and Pseudomonas were not naturally present in the Gulf of
G
Sign out
What is the source of complex organic matter that fueled the enrichment of bacteria after the well was shut-in?
What do you think was the source of complex organic matter that fueled the enrichment of bacteria after the well was shut-in? The hydrocarbon-degrading bacteria in this study have existed naturally in the ocean for millions of years, long before humans began drilling for oil.
A species of asexually reproducing bacteria can have new offspring in 40 minutes, and a species of sexually reproducing salamanders can have new offspring in 48 months.
Which statement best describes this situation?
This is a disadvantage for both species.
This is a disadvantage for the bacteria and an advantage for the salamanders.
This is an advantage for the bacteria and a disadvantage for the salamanders.
This is an advantage for both species.
Answer:
It's an advantage for the bacteria, not an advantage for the salamander
Explanation:
The point of reproduction ideally is to produce as many offspring in as little time as possible, to increase the number of offspring that thrive. Therefore the bacteria being able to multiply quickly is an advantage and will most likely increase the chances of evolution occuring sooner (antibiotic resistant bacteria for example). The salamander having to wait 4 years to have few offspring will make the number of babies they're able to have in a lifetime rather low.
This is an advantage for the bacteria and a disadvantage for the salamanders. So, the correct option is (C).
What is Asexual reproduction?Asexual reproduction is defined as a mode of reproduction in which a new offspring is produced by a single parent where the new individuals produced are genetically and physically identical to each other i.e. they are clones of their parents.
Asexual reproduction is observed in both multicellular and unicellular organisms where the process does not involve any kind of gamete fusion and there is no change in the number of chromosomes. It will inherit the same genes as the parent, except in some cases where a rare mutation is likely to occur.
Through this method, organisms reproduce quickly while through sexual reproduction, organism take time which is a disadvantage.
Thus, this is an advantage for the bacteria and a disadvantage for the salamanders. So, the correct option is (C).
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This community is protecting it’s watershed by protecting natural vegetation along the river, limiting pesticides and fertilizer, and banning dumping in the river. What catastrophic event would have the biggest impact on it’s watershed?.
Flood is the catastrophic event would have the biggest impact on its watershed.
What is flood?
Flood is the overflow of water from the water resources such as rivers, lakes, and oceans.
It is one of the natural disasters that happen due to access of rain or breaking of dams etc.
Flood can affect the quality of water, there become scarcity of clean water.
People lost their home due to entry of water in the homes.
Thus, the catastrophic event is flood.
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Help pleaseeeeeeeeeeeeeeereeee
Answer:
The answer is D. Kidneys absorb more water,volume of water lost from the skin increases and the hairs on the skin lie flat
Wind, solar and geothermal power are called renewable energy sources because _______. a. tax breaks for these sources are renewed every year b. they are continuously replenished c. humans can replenish these sources periodically d. they produce few toxic byproducts please select the best answer from the choices provided a b c d
Wind, solar and geothermal power are renewable energy because they are continuously replenished.
What is renewable energy?Renewable energy is energy that is gathered from renewable resources that are intrinsically replenished on a human timescale. It includes sources such as sunlight, wind, rain, tides, waves, and geothermal heat.
Thus, renewable energy sources are continuously replenished.
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Answer:
A
Explanation:
Edge 2022
According to the cladogram, which of the following is the derived characteristic shared by amphibians and reptiles? jaws bony skeleton lungs
Answer:
c
Explanation:
i just did it!
Answer:
c
Explanation:
i don't really know
Why are autotrophs the most important organisms on the planet?
Answer:
They help our ecosystems and food chains all over the world
Explanation:
Autotrophs are the most important organisms on the planet because they are fundamental to food chains all over the world. They take energy from the environment in the form of sunlight or inorganic chemicals and use it to create fuel molecules like carbohydrates to release the hydrogen atoms that fuel the metabolic process of primary production.
Explanation is in the paragraph above. Hope that helps!
Answer:
Autotrophs or organisms that make their own food such as any type of plants are the most imporant species on Earth because without them the food chain would collapse. Plants are eaten by herbivores which are eaten by predators (carnivores). Without the plants, herbivores would starve and in return, carnivores would die off as soon as there is no more protein or meat to scavenge or eat.
Blood type pedigree mystery
Answer:
Blood Type Pedigree Mystery Lab Activity In this lab activity, students will solve a theft crime using their knowledge of pedigrees and the inheritance of traits (like ear lobe attachment and blood type) to create a pedigree of a mystery family. They will then determine the genotypes of the family members in order to identify the thief.
Explanation:
In a family, the inheritance pattern of blood type can be represented with a pedigree. Blood type pedigrees are used to make different interpretations according to the question.
Since I do not have the complete question, I will provide information about blood type inheritance and pedigrees for you to interprete or to construct a Blood type pedigree.
What is the ABO blood type?ABO blood type refers to the classification of the blood according to the antigens present.
The I gene determines the blood type of a person. It is a three-allelic gene that expresses complete dominance and codominance.
IA and IB alleles are dominant over the recessive i allele.→ IA dominant over i. The person presents A type of antigens.
→ IB dominant over i. The person presents B type of antigens.
→ i is the recessive allele. The person does not present any antigen.
IA and IB are codominant. The person presents both types of antigens, A and B.Genotypes
H0m0zyg0us dominant or heter0zyg0us Individuals IAIA or IAi will express the A blood type. H0m0zyg0us dominant or heter0zyg0us Individuals IBIB or IBi will express the B blood type Individuals with h0m0zyg0us recessive genotype, ii will express the 0 blood type. Individuals carrying IA and IB alleles will express the AB blood type.
What is a pedigree?
A pedigree is a representation of familiar history through generations.
This representation uses different symbols and numbers to identify individuals and generations.
It is usually used to follow the inheritance pattern of a certain trait or affection.
For a correct interpretation of a pedigree, we need to know that,
• Family members
→ Individuals are represented with geometrical figures.
→ Males are squares
→ Females are circles
→ Unborned individuals are rhombus
→ Individuals can be identified with numbers, letters, or names
• Trait/Phenotype
→ Empty figures represent Healthy/normal/not affected individuals
→ Solid black fgures represent Affected/mutated individuals
• Generations
→ Each file is represented with a roman number, indicating the Generation.
Knowing about the inheritance pattern of blood type and how to represent it in a pedigree, you can make different interpretations according to your question.
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Why did the Earth not keep its first atmosphere?
Answer:
These molecules of gas moved so fast they escaped Earth's gravity and eventually all drifted off into space. Earth's original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed.
Which of the following organelles is responsible for providing a barrier between the cell and its surroundings?
nucleus
cytoplasm
Golgi apparatus
cell membrane
Answer:
The correct answer is D, cell membrane.
Explanation:
I hope this helps you! :)
7.)
With both the Belgian Blue cattle and the Piedmontese cattle, which level of protein structure that is
so important in determining how the protein will function is probably disrupted? Why is it disrupted?
Mutations that lead to protein disruption will produce defective proteins by affecting the first level (amino acid sequence). Defective proteins are non-functional.
What is mutation?A mutation is any alteration in the nucleotide sequence of the genome (i.e., the genetic material) of an organism.
Mutations in genes may lead to the generation of different types of proteins that encode for different amino acids.
The first level of protein structure is the amino acid sequence, thereby mutations may affect this level.
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Explain why X-linked recessive traits are more common in males than females.
Hint: If you are stuck, try explaining why a boy (XbY) has colour vision deficiency and a girl (XBXb) does not, even though they both have the recessive allele Xb.
X-linked recessive traits are more common in males because the decease is only carried on the X chromosome therefore females need two copies of the gene to have the decease whereas in males they only need one copy. This is because males are XY and females are XX
X-linked recessive traits are more common in males than females because males only have one X chromosome while females have two. This means that if a male inherits an X chromosome with a recessive allele, it will be expressed in his phenotype.
Type the correct answer in the box. Spell all words correctly. Jason was part of a team that had to calculate the incoming solar radiation and outgoing terrestrial infrared radiation. What did Jason’s team study? Jason’s team studied the , which measures incoming solar radiation and outgoing terrestrial infrared radiation.
Jason's team studied the concept of Earth's energy balance (budget).
What do you mean by Solar radiation?The radiations that fall on the surface of the earth from the sun, are referred to as solar radiations.
The Earth's energy balance is a type of balance that is made between the amount of incoming solar radiation coming from the sun and outgoing terrestrial infrared radiation from the earth. This process maintains the average temperature of the earth's surface.
Therefore, if Jason's team had to calculate the incoming radiation and outgoing terrestrial radiation, his team needs to study the concept of Earth's energy balance.
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Can someone help make a cladogram out of this
Answer:
I have never done one of these before, so I don't know if it's right, but I think it's close
Explanation:
Subject Course : Earth Science
1.
What kind of breeze occurs during the day in coastal areas?
sea breeze
valley breeze
mountain breeze
land breeze
2.
What is the main factor that affects local winds?
trade winds
the Coriolis effect
uneven heating of Earth’s surface
altitude
3.
What type of breeze occurs near mountains at night?
valley breeze
land breeze
mountain breeze
sea breeze
*I will provide Brainliest if given correct answers.
Answer:
Subject Course : Earth Science
1.
What kind of breeze occurs during the day in coastal areas?
✔️ breeze
valley breeze
mountain breeze
land breeze
2.
What is the main factor that affects local winds?
trade winds?
✔️the Coriolis effect
uneven heating of Earth’s surface
altitude
3.
What type of breeze occurs near mountains at night?
valley breeze
land breeze
✔️mountain breeze
sea breeze
Explanation:
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amebas are single celled organisms that need to obtain food in order to
Finish the sentence
Explanation:
amebas need food to carry out life functions