Stages of mitosis and what happens in each stage.
Answers
Prophase:
It is the first phase in which the chromatin coil to become chromatids, and those chromatids pair up and the nuclear membrane surrounding them dissolves. The centrioles move to each end (pole) of the cell.
Metaphase:
Where the paired chromatids align in the centre of the cell and spindle fibres attach to them at the centromere.
Anaphase:
The centrioles act as anchors, tearing the paired chromatids away from each other using the spindle fibres. Each paired chromatid moves to either (the opposite) end of the cell.
Telophase:
Where the chromatids elongate to form chromatin, and a nuclear membrane begins to form around the chromatin at each end of the cell. Cytokinesis occurs in this stage as the cell separates into two daughter cells. In animal cells, there is cleavage as the two cells are starting to separate. In plant cells, a plate begins to form.
Related Questions
how are detritivores different from decomposers? provide an example of each
Answers
Decomposers would be something like worms
Detritivores would be something like dung beetles
Decomposers return nutrients to the ecosystem, while detrivores consume dead things. Bacteria and fungi are examples of decomposers, and vultures are examples of detritivores.
What is detritivores?Detritivores are heterotrophs that get their nutrients from detritus. Coprophagy is practiced by a wide range of invertebrates, vertebrates, and plants.
Detritivores, such as millipedes, earthworms, and termites, eat dead organisms and wastes while decomposers break down dead organic materials.
Detritivores are distinct from other decomposers in that they consume material in order to decompose it. Bacteria and fungi, for example, do not eat their food; instead, they decompose it externally.
Decomposers replenish the ecosystem's nutrients, whereas detrivores consume dead things. Decomposers include bacteria and fungi, while detritivores include vultures.
Detritivores feed on detritus particles, whereas decomposers "feed" by chemically breaking down organic matter.
Thus, detritivores are different from decomposers.
For more details regarding detritivores, visit:
https://brainly.com/question/28985325
#SPJ2
Which of the following limits the maximum size of a cell?
A. The stage of the cell cycle
B. The ratio of cell surface area to volume
C. The number of mitochondria in the cell
D. The size of the organism
Answers
A cell needs to import and export things according to its needs.
As a cell get's bigger, it needs to export and import more things.
However, the surface area to volume ratio gets smaller as a cell gets bigger.
In order for a large cell to import and export efficiently to meet its needs, it either cannot be large at all or must develop something that increases its surface area.
Have a nice day! :)
The ratio of cell surface area to volume limits the maximum size of a cell (Option B).
The plasma membrane that surrounds a cell controls the passage of materials (nutrients, waste products, etc) inside and outside the cell.The cell surface area is directly associated with the rate at which this passage occurs and cell volume.In consequence, as the cell surface increases, the cell volume then can increase in a faster manner.In conclusion, the ratio of cell surface area to volume limits the maximum size of a cell (Option B).
Learn more in:
https://brainly.com/question/1509324
What is the smallest lithostratigraphic rock unit? formation bed layer group
Answers
Answer: Option (1)
Explanation:
The basic lithostratigraphic unit of rock is formation. A formation is comprised of definite rock body whose rock characteristics can be compared to another rock strata, and can be mapped easily.
A bed is defined as the distinctive rock layer that can be differentiate from its upper layer and the lower layer, and are usually more than 1 cm in thickness.
A layer is defined as a distinct rock body, which has a particular rock materials and are distinguishable from one type to another and they are precisely traceable.
A group of rock is comprised of different rock units or layers, forming a division of the geological rock history.
Thus, the correct answer is option (1).
From the origins of the human species some 3 million years ago until about the year 1800, most people in the world lived in which type of societies
Answers
agrarian
hunting and gathering
horticultural and pastoral
GOOD LUCK!!
true or false : the endoplasmic reticulum is in charge of decoding the messenger RNA to produce proteins
Answers
True or false carbohydrates also make up part of the cell membrane
Answers
Human processes mainly contribute to the
Answers
what happens to food energy during photosynthesis
Answers
The nurse is caring for a client who has a multifetal pregnancy. what topic should the nurse prioritize during health education
Answers
What are the bonds that hold nucleotides together in a "base-pair"?
Answers
In any ecosystem, all incoming energy will eventually be
A. passed on to the decomposers when organisms die
B. released into the surrounding environment as heat
C. transferred up from one trophic level to the next
D. used by plants in the process of photosynthesis
A reaction in which the reactants have a greater amount of free energy than the products that are formed will be
A. endergonic, with a net release of free energy to the surroundings
B. endergonic, absorbing free energy from the surroundings
C. exergonic, with a net release of free energy to the surroundings
D. exergonic, absorbing free energy from the surroundings
Answers
The final product of ____ is 2 pyruvic acid molecules.
A). The Krebs cycle
B). Glycolysis
C). Aerobic respiration
D). None of the above
Answers
The final product of glycolysis is 2 pyruvic acid molecules, which is the first step in cellular respiration where glucose is broken down to produce energy.
Explanation:The final product of glycolysis is 2 pyruvic acid molecules. Glycolysis is the first step of cellular respiration, a process through which cells break down glucose to produce energy. During glycolysis, one molecule of glucose (a six-carbon compound) is transformed into two molecules of pyruvic acid (a three-carbon compound).
Learn more about Glycolysis here:https://brainly.com/question/14089531
#SPJ6
Of the 65 million americans living with an incurable sexually transmitted infection, most of them have
Answers
Of all the sixty five million americans living with an incurable sexually transmitted infection, most of the ones that have it are young people. As well as men with men, minority population and even certain racial groups as these are likely the factors or people who are most likely to acquire the infection.
the cells of unicellular organisms are A.) specialized to perform specific tasks B.) larger than those of multicellular organisms C.) able to carry out all of the functions necessary for life D.) unable to respond to changes in the environment
Answers
Your answer is most likely C
I hope this helps.
HAPPY HALLOWEEN
The cells of unicellular organisms are capable of performing all of life's essential functions and responding to their environment. Unlike multicellular organisms where cells are specialized for specific tasks, each unicellular organism carries out all functions within a single cell. However, multicellular organisms offer higher levels of organization and complexity.
Explanation:The cells of unicellular organisms, such as bacteria, can carry out all the functions necessary for life. Unlike the cells of multicellular organisms which are specialized, each cell of a unicellular organism can perform tasks essential for its survival, such as converting the energy in sugar molecules into energy in ATP. At the same time, these cells can also respond to their environment by turning on and off specific genes according to the demands of their surroundings.
Despite this adaptability, unicellular organisms do not have the level of complexity or organization seen in multicellular organisms. Organisms composed of multiple cells can coordinate between distantly located cells and have developed systems such as a circulatory system or an efficient respiratory system to bring nutrients and oxygen to their cells respectively. Furthermore, these cells become more efficient by becoming specialized, doing fewer tasks but doing them extremely well.
Learn more about Unicellular organisms here:https://brainly.com/question/18382350
#SPJ6
________ cells, which differentiate into osteoblasts, are located in the endosteum and inner cellular layer of the periosteum.
Answers
MSC are adult stem cells found in the bone marrow, but also can be found isolated in other tissues including cord blood, peripheral blood, fallopian tube, and fetal liver and lung.
1. In a population of 200 field mice, 98 mice are homozygous dominant for brown fur (FF), 84 mice are heterozygous (Ff), and 18 mice are homozygous recessive and have white fur (ff).
A. What are the genotype frequencies of this mice population?
FF =
Ff =
ff =
B. What are the allele frequencies of this population?
F allele =
f allele =
Answers
The genotype frequencies can be determined by dividing the number of individuals with a genotype by the total number all the individuals.
FF genotype frequency:
98÷200=0,49. There are approximately 5 homozygous dominant mice in 10.
Ff genotype frequency:
84÷200=0,42. There are approximately 4 heterozygous mice in 10.
ff genotype frequency:
18÷200=0,09. There are approximately 1 homozygous recessive mouse in 10.
B.
To determine the frequency of an allele we can divide the number of times that the allele appears by the total number of alleles.
F allele frequency:
[tex] \frac{(98*2)+84}{400} [/tex]=0.7
There are 7 F alleles in 10 random alleles.
f allele frequency:
[tex] \frac{84+(18*2)}{400} [/tex]=0.3
There are 3 f alleles in 10 random alleles.
When a doctor observes your symptoms and tells you that you have flu, she is reasoning?
Answers
When a doctor observes the symptom of a patient and tells that he or she is likely having a flu, the reasoning she or he used is likely from the effect to cause. The reasoning from effect to cause is having to check on the cause in order to produce or come out with the effect in which the symptoms is the cause of the flu, in which the flu is the effect.
Why algae in the ocean can have a very high NPP and a very low amount of stored biomass
Answers
Why is sandstone considered a rock and NOT a mineral? What characteristics of a mineral does it not meet? Answer in at least 2 sentences
Answers
Sandstone is not considered to be a mineral because, it did not meet all the criteria of mineral substances. Sandstone does not have a crystalline structure.
Final answer:
Sandstone is a rock because it lacks a consistent crystal structure and is made up of various minerals and particles, unlike a mineral which must have a unique crystalline structure and a specific chemical formula.
Explanation:
Sandstone is considered a rock and not a mineral because it does not have a consistent internal crystal structure and is not composed of a single substance. A mineral, by definition, is a naturally occurring, inorganic solid with a specific chemical formula and a unique crystalline structure. Sandstone fails to meet these criteria because it is a clastic sedimentary rock composed of sand-sized particles that can include a variety of minerals like quartz and feldspar, as well as rock fragments or organic material. Different parts of sandstone may have different compositions, making it heterogeneous. Furthermore, sandstone is often found in layers or beds, can be granular or gritty, and displays physical characteristics like color variation and potentially containing fossils, which are not features specific to minerals.
Why is a fat-free diet dangerous?
It can cause the body to break down muscle tissues.
It can result in a deficiency of essential carbohydrates.
It can result in a deficiency of essential fatty acids.
Answers
It can result in a deficiency of essential fatty acids.
Which of the following is an example of natural resources? (4 points)
Factories, good roads, and a large population
Rich soil, forests, and minerals
Automobiles, dairy farms, and governments
Stores, chemical companies, and clothing factories
Answers
hope this helps
It's B.
This is because forests are renewable; trees grow back over a small period of time. Minerals do as well, and rich soil can earn back its nutrients through time.
Automobiles are not renewable as they give off carbon dioxide, which would be referred to as a greenhouse gas. One that keeps heat in our atmosphere.
Chemical companies dispose of harmful gasses and chemicals that are harmful to our earth, as well as factories.
Which process brings energy to the biosphere?
Answers
Photosynthesis is the process by which energy from the sun is trapped and used to produce food by plants. During photosynthesis, carbon dioxide and water react together in the chloroplast in the presence of sunlight to form starch and oxygen. Oxygen is the by product of the reaction. The energy from the sun is stored inside the starch molecule in form of chemical energy and this energy is made available to the animals when they consume the produced starch. Thus, photosynthesis is the source of all energy in the biosphere.
Cellular respiration is the process by which: 1. energy from the chemical bonds of food molecules is captured by an organism. 2. oxygen is produced during metabolic activity. 3. light energy is converted into kinetic energy. 4. oxygen is used to transport chemical energy throughout the body. 5. atp molecules are converted into water and sugar.
Answers
A child recovering from a severe asthma attack is given oral prednisone 15 mg twice daily. what is the priority nursing intervention
Answers
The priority nursing intervention would avoiding exposure of the child to infection. The explanation behind this is prednisone decreases the child's resistance to definite infectious progressions and, as an anti-inflammatory drug, covers infection. The child will self-limit action contingent on respiratory status. The eosinophil count is frequently reliably improved in children with asthma. The child will need sufficient hydration to help release and eject mucus.
what types of carbohydrates are made of chains of alpha and beta glucose?
Answers
What is the primary storage form of carbohydrate in the body?
a. glucagon
b. glucose
c. starch
d. fiber
e. glycogen?
Answers
Glycogen is the primary storage form of carbohydrates in the body, stored in liver and muscle cells, and is broken down into glucose when needed.
Explanation:The primary storage form of carbohydrate in the body is e. glycogen. Glycogen is made up of glucose monomers and is a highly branched molecule, usually stored in liver and muscle cells. Glycogen functions as the animal equivalent of starch. When the blood glucose levels decrease, the body breaks down glycogen into glucose in a process called glycogenolysis, maintaining the homeostasis of glucose levels in the bloodstream.
Which type of memory allows you to have meaningful conversations?
Answers
The memory responsible for allowing us to have meaningful conversations is the echoic memory. This type of memory falls under the sensory memory in which they use the auditory information that enables an individual to retain and recall information with the use of his or her way of perceiving sound and for a person to be able to create meaningful conversations towards other people.
The ion needed to initiate the release of acetylcholine into the synaptic cleft is
Answers
The ion needed to initiate the release of acetylcholine into the synaptic cleft is the calcium ions.
What is a Synaptic cleft?A synaptic cleft may be defined as the type of tiny space after the axon terminal of the pre-synaptic neuron and initiation of the cell body or dendrites of the postsynaptic neuron. It is also known as the synaptic gap.
When the presynaptic membrane of an axon terminal is depolarized, it induces the opening of voltage-gated calcium ion channels. It allows the influx of calcium ions inside the cell.
This entry of calcium ions induces the fusion of synaptic vesicles with the membrane and finally the liberation of neurotransmitters such as acetylcholine molecules into the empty space which is known as the synaptic cleft.
Therefore, calcium ions are needed in order to initiate the release of acetylcholine into the synaptic cleft.
To learn more about Synaptic cleft, refer to the link:
https://brainly.com/question/12961699
#SPJ6
Which is a common complication of gonorrhea and chlamydia?
Answers
Pelvic inflammatory disease (PID) is the common complication of gonorrhea. PID is an infection of the organs of a women's reproductive system (uterus, ovaries, fallopian tubes, and cervix)
What is the breakdown of rocks and minerals into small particles without a change in composition called?
(a) Igneous Intrusion
(b) Chemical Precipitation
(c) Metamorphic Foliation
(d) Mechanical Weathering