Answer:
Blood delivers oxygen to all the body's cells. To stay alive, a person needs healthy, living cells. Without oxygen, these cells would die. If that oxygen-rich blood doesn't circulate as it should, a person could die.
Explanation:
Describe the situations in which a normal human cell would enter the cell cycle and undergo mitotic cell division. Explain how spindle fibers help ensure the products of mitosis are two identical cells with a full set of chromosomes.
Answer: An example of a specific case is when a skin lesion occurs. Through mitosis, new skin cells are generated to repair damaged tissue. These cells have to be genetically identical to each other. The spindle fibers are structures formed by microtubules extending from one pole to another to orient the duplicated chromosomes in the spindle, bringing them to the position they occupy during metaphase.
Explanation:
Mitosis is a process of cell division that occurs in eukaryotic cells, i.e. cells that have a nucleus where their genetic material is located. This process generates two identical cells with the same DNA, that is, with two identical nuclei, so it does not provide genetic variability except in case of specific mutations. The objective of mitosis is cell multiplication while preserving genetic information. But in general, in mitosis there is an equal distribution of the cell nucleus as well as the rest of the cell content.
The phases of mitosis are as follows:
Interface: The cell duplicates its organelles and its DNA to have twice everything before division.Prophase: The nuclear membrane breaks, the chromosomes condense, the centrosome duplicates and migrates to the opposite poles of the cell forming microtubules. Also, fibers of the mitotic spindle are formed. Prometaphase: The microtubules invade the space where the genetic material is.Metaphase: The replicated chromosomes line up in the middle of the cell, called the equatorial plane.Anaphase: Microtubules separate chromosomes towards the opposite poles. Telophase: The nuclear envelope is re-formed from the remaining fragments of the original.Cytokinesis: A cleavage groove is created in the common cytoplasm of the two new cells where the chromosomes were aligned. The cytoplasm is thus strangled until the membrane allows total separation.Mitosis is then a cellular process that occurs in multicellular organisms to repair damaged tissue, or for growth or development. An example of a specific case is when a skin lesion occurs. When a person suffers an injury, many reactions take place in the repair process to repair the damage including inflammatory, proliferative, and remodeling phases. Through mitosis, new skin cells are generated to repair damaged tissue. These cells have to be genetically identical to each other, to have the same genetic fingerprint and the same function.
The spindle fibers are structures formed by microtubules extending from one pole to another. The kinetochore microtubules attach to the kinetochore, a structure that forms at the centromere of each duplicated chromosome, and orient the duplicated chromosomes in the spindle, bringing them to the position they occupy during metaphase and attracting the newly separated chromosomes to the poles during anaphase.
Spindle fibers has a great contribution in the process of mitosis.
The spindle fibers help to ensure the products of mitosis which is two identical cells with a full set of chromosomes due to attracting the chromosomes towards the poles. Spindle fibers move chromosomes during cell division by attaching to chromosome arms and centromeres and drag the chromosomes towards the pole.
This movement of chromosomes leads to the formation of one parent cell into two daughter cells having equal and same set of chromosomes so we can conclude that spindle fibers has a great contribution in the process of mitosis.
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Which image shows natural selection leading to the increase in a specific trait in a population?
Species which use camouflage as a defense have an appearance that helps them blend into their surroundings.
True
False
Answer:
True
Explanation:
Here is why: Lets say that a gecko and a lion met, since the gecko is small and slow, the gecko will camouflage and help the gecko stay alive and not become gecko food
What is the sidereal period used in Kepler's third law?
A.
the time taken by the planet for one rotation around its axis
B.
the time it takes for a planet to complete one orbit with respect to the background of fixed stars
C.
the orbital period of a planet as it revolves around the Sun as observed from Earth
D.
the time taken by the planet to transition from day to night
E.
the time taken by the planet to travel from the aphelion to the perihelion
Answer: c
Explanation:
What is an obligate anaerobe? How do obligate anaerobe like Bacteria C get energy?
Answer:
What is an obligate anaerobe?: An organism, such as a bacterium, that can live only in the absence of oxygen.
How do obligate anaerobe like Bacteria C get energy?: Obligate anaerobes metabolise energy by anaerobic respiration or fermentation. In aerobic respiration, the pyruvate generated from glycolysis is converted to acetyl-CoA. This is then broken down via the TCA cycle and electron transport chain.
Love, gocry
PLEASE HELP WILL MARK BRAINLIEST
A laboratory class does so many different experiments that they need all the labeled major cleanup containers. Looking
around the room, Janelle found a container for broken glass and chemical waste.
Which additional container diles the laboratory need for safety?
recycle bin
hazardous waste
solid waste
trash can
Answer:
I think hazardous waste
Answer:
b
Explanation:
Look at the photo. Explain how it shows both an individual and a community.
Answer:
The individual would be the caribou. The community would be all the interacting groups of species in the same location
Hope this helps!
According to the picture given below, the Caribou is an individual that is living in a particular geographical location, while all other groups of individuals belonging to different species in that area represent a community.
What is Community?A Community may be defined as a group of individuals belonging to different species living in the same area at a given time.
The individual is the unit of the population, while the population is the unit of evolution. This form of evolution is significantly required in order to construct a community where the different groups of individuals of different species are gathered in such a way that one depends on another.
Therefore, according to the picture given below, the Caribou is an individual that is living in a particular geographical location, while all other groups of individuals belonging to different species in that area represent a community.
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what is potato...........
Answer:
hiii
a starchy plant tuber which is one of the most important food crops, cooked and eaten as a vegetable.
Answer:
A vegetable that grows in the soil, that consist of carbon hydrates and fibers.
Explanation:
Is olive oil organic or inorganic explain why?
Answer:
Organic olive oil is the definition for the olive oil produced with organic processes, in accordance with EU regulations. This means firstly that the olives have been cultivated without chemical-synthetic fertilizers, plant protection products, and soil herbicides.
Explanation:
2
What is a hypothesis?
OA.
a statement that summarizes the results of an experiment
OB.
a question that cannot be scientifically tested
OC.
a description of the steps involved in an experiment
OD
a statement that can be tested through a scientific investigation
Reset
Submit
Answer:
D
Explanation:
a statement that can be tested through a scientific investigation
Answer:
D
Explanation:
the answer is d because a hypothesis is an assumption that will be tested in the expirement.
Finding fossils in an area can help us learn what about that location?
a
OOOO
Which places in the region receive the most sunlight
The effect of the climate on the formation of soil
How modern plants and animals interact there
The kinds of organisms that lived there fong ago
Answer: D. The kinds of organisms that lived there long ago.
Explanation: Finding fossils in an area can help us learn about the kinds of organisms that lived there long ago. The fossil leave traces behind about what type of animal lived there and who the animal was.
I'll give you a brainliest if is right or at least shows some effort
(thanks & i hope your having a good day)
In your own words, explain how background noise detected in space provides evidence for the Big Bang Theory.
Answer:
The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background", or CMB.
Explanation:
Answer:
Cosmic microwave background radiation (CMR) found a mysterious microwave a signal causing background noise in the radio telescope the signal came from everywhere. The early universe should have been very hot the cosmic microwave background radiation (CMR) is the remnant heat left over from the big bang.
Which theory is supported by scientists gathering the additional evidence of seafloor spreading and magnetism?
O Continental Drift Theory
O Mid-Atlantic Ridge Theory
O Pangea Theory
Theory of Plate Tectonics
Answer:
Mid Atlantic Ridge theory
Explanation:
I learned about this a last term.
Answer:
It is Continental Drift Teory (pretty much it is too late for me to answer)
Explanation:
I found this on microsoft and on quizllet. It is acutually correct! Hope this helps to anyone that is viewing this!!
Explain what is ecological conservation and conservation of the environment. What can you do to conserve the environment? Why do you think it is important to conserve the environment.
WILL NAME BRAINLIST!
Answer:
Conservation ecology is the branch of ecology and evolutionary biology that deals with the preservation and management of biodiversity and natural resources. Its goal is to find ways to conserve species, habitats, landscapes, and ecosystems as quickly, as efficiently, and as economically as possible.
-These are some examples of how we can conserve the environment:
Recycle your rubbish and participate in or help organize recycling campaigns.
Avoid littering and participate in or help organize litter clean-ups (here you can link to a website for volunteering or starting your own beach clean-up).
Use less plastic by, for example, carrying a reusable water bottle, saying no to disposable straws and cutlery, avoiding plastic toys, and bringing your own shopping bags (for further ideas on a plastic-free life take a look here).
Swap toys, movies, and books instead of buying new ones.
Donate, recycle, and repair electronic devices (see how here).
Use less water when brushing teeth, taking a shower, or washing the dishes.
Use less electricity by turning off lights and electronic devices when not in use, using energy-saving light bulbs, and hanging clothes to dry.
Use public transport, share a journey with friends (e.g., car-sharing), cycle, or walk when possible.
Use less paper by not printing unnecessary things and reading e-books.
Turn down the air conditioning when it is hot and use fans if you are still hot-they use much less power.
Turn down the heat when it is cold and use sweaters, blankets, and socks to keep warm.
Do not waste food and try to buy food that is grown locally and in season.
Hope this helps:)
Help me pls this is confusing
Answer:
the chemical weathering contributes to metamorphic rocks
Explanation:
This chart illustrates the type and number of items collected during a clean up of a beach. Based on the chart, what approximate percentage of the total items result from the action of people?
Answer:
50%
Explanation:
Based on this chart, the approximate percentage of the total items that result from the action of people is 70% - 80%.
What is a pie chart?A pie chart can show the method by which a total amount can be divided between the levels of a categorical variable as a circle is divided into radial slices.
Each categorical value is corresponding to a single slice of the circle, and the size of each slice, both in the area and arc length, is indicative of the proportion of the whole that each category level will take.
Pie charts have comparatively limited cases of use this is encapsulated particularly accurately according to its definition.
So, for the utilization of a pie chart, one must have some kind of a whole amount that is divided into a number of distinct parts. These are represented by various sections.
Therefore, based on this chart, the approximate percentage of the total items that result from the action of people is 70% - 80%.
Read more about pie charts, here
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Why am I so saddened
Answer:
stress
Explanation:
u are studying some things that are keeping u sad
and if u don't open up ur gonna suffer from anxiety
Answer:
Try meditation it helps
Explanation:
School makes everyone sad dw.
What do the enzymes in excision repair systems do?
A destroy cancer cells
B cut off telomere sections
C replace dna damaged by chemicals
D replace rna primers with dna
What does the fact that the infant mortality rate is higher among minority groups in the United States than among the white population indicate?
O A. Inadequacies in determining mortality rates O B. Differences in attitudes about family size
O C. Inequalities in health care
O D. Problems with fertility rates
I think it's c
Answer: C. Inequalities in health care
Explanation: (A P E X)
Answer:
C. Inequalities in health care
Explanation:
20 POINTS NEED ANSWER ASAP PLEASE AND THANK YOU
What three factors affect how air flows in our atmosphere?
Pressure, Temperature and Moisture
Temperature, Density and Moisture
Pressure, Density and Moisture
Pressure, Temperature and Density
Answer:
Pressure, Temperature and Moisture
Explanation:
Pressure brings the fog down.
Temperature makes the atmosphere warm.
Moisture makes the atmosphere moist.
Okay.
HELP ME SOMEONE PLSss
Answer:
I think it's a or D I'm not sure
what determines the traits of an organism
a. Relation of AT to CG base pairs
b. number of nitrogen bases in RNA
c presence of ribose or deoxyribose in a nucleic acid
d sequence of nitrogen bases in DNA
Answer:
A
Explanation:
I think this is because the base pair orders change from person to person.
Baby Brain Power
How does the bar graph on page 5 expand on
information presented in the passage?
It shows exactly how many synapses a person's
brain has at birth
Speech, emotional regulation, movement, and
vision-all of these extraordinary abilities and
many more are possible thanks to the organ
that serves as the body's control center. When
one thinks of "brain power, it is the faces of
adult inventors, professors, and novelists that
Ekely come to mind. Remarkably the most
critical time period with respect to brain
development occurs relatively soon after an
individual is bom.
A newborn enters the world as a fairly helpless
creature, but her brain hos billions upon
bitions of specialized cells coiled neurons.
It gives more information than the passage by
showing that the number of synapses returns to
what it was at birth.
It provides specific information about how many
synaptic connections are formed in each year of a
person's life.
It gives information about synaptic connections
beyond the time period described in the passage.
2
3
4
5
Answer:
C
Explanation:
Took it
Anyone Please Help!! Brianliest!!!
Answer:
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What would happen if a quaternary consumer were added to this ecosystem?
Answer:This lesson introduces and explains the ecological concept of a quaternary consumer. It discusses which organisms act as quaternary consumers and. ... If so, you've filled the role of primary consumer by eating lettuce (a producer). ... In which case it should be easy to understand that quaternary consumers are next in line
Explanation:
Multiple Choice Question:
Metabolizing proteins refers to breaking them down and changing them so that your body can use them. if you eat an egg, the proteins in the egg must be ______________ for use
A. metabolized
B. plagerized
C. synthesized
Answer:
A, metabolized
Explanation:
^^ Hopefully this helps!
savvas the details of photosynthesis chart
Answer: First, the plant has to take in water, sunlight, and oxygen. In turn, it produces carbon dioxide and glucose. Sunlight is the most necessary thing that a plant needs to complete this cycle.
HUMERO - DELTOIDES - COSTILLAS – TIBIA – CODO – BICEPS – ADUCTOR – MUÑECA – CUBITO – PECTORAL – CADERA – GEMELOS– VERTEBRAS – CLAVICULA – TOBILLO – DORSAL – CUADRICEPS – HOMBRO – ROTULA – FEMUR – ABDOMINAL- CRANEO- OMOPLATOS- FALANGES –IZQUIOTIBIAL – CORAZON Huesos: Músculos: articulaciones:
Answer:
Huesos: HUMERO, COSTILLAS, TIBIA, CUBITO, VERTEBRAS, CLAVICULA, ROTULA, FEMUR, OMOPLATOS, FALANGES.Músculos: DELTOIDES, BICEPS, ADUCTOR, PECTORAL, GEMELOS, DORSAL, CUADRICEPS, IZQUIOTIBIAL, CORAZON, ABDOMINAL.Articulaciones: CODO, MUÑECA, CADERA, TOBILLO, HOMBRO, CRANEO.Explanation:
Los huesos son órganos que tienen la función de dar estructura, protección y soporte al cuerpo. A los huesos se le unen los músculos, los cuales hacen que los huesos se muevan al contraerse estos. Las articulaciones unen los huesos entre sí y permiten junto con los músculos el movimiento del cuerpo y de sus diferentes partes.
The complexity of life has _____ throughout Maryland's 4.6 billion year history.
what is the right answer that should goin the blank
A. increased
B. decreased
C. stayed the same
Answer:
A. increased
Explanation:
In general, life has gotten more complex through history. However, there have been times when biodiversity as been substantially reduced. (We may be in one of those times at present.) We cannot say that the complexity of life has increased throughout the history of any particular place, but we can say the long term trend has been one of increase.
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What is the role of these bacteria in the nitrogen
cycle?
Answer:
The function of the bacteria is to break down the protein present in the plants and animals and convert them into ammonia which is again a very important end product.
Explanation: