Answer:
electron, carbon, protein, mitochondria, neurons, mass of neuron, nervous system, brain, man
A cell biologist carefully measures the quantity of DNA in grasshopper cells growing in cell culture. Cells examined during the G1 phase of the cell cycle contained 200 units of DNA. What would be the amount of DNA in one of the grasshopper daughter cells right after cytokinesis?
Answer:
200 units
Explanation:
Cell cycle refers to the series of events that occurs throughout the division of a cell. Mitosis is the division used during cell growth. Mitosis consists of the Interphase stage and the Mitotic phase. The interphase stage is made up of the G1, S and G2 phases in that order. The genetic material (DNA) of the cell replicates during the Synthesis (S) phase.
Hence, this means that the DNA of grasshopper cells in the culture observed during the G1 phase will enter the S phase and replicate i.e. 200 units will form 400 units.
The cell go ahead to undergo nuclear division during the anaphase of the mitotic phase. Hence, each pole of the cell will contain 200units of DNA each. During Cytokinesis, the cytoplasm of the cell divides and the contents of the opposite poles becomes a new daughter cell. Each daughter cell will therefore contain 200 units of DNA each.
What is classification? Why is it necessary to classify animals and plants?
Answer:
Explanation:
Scientists use Taxonomy, the science of classifying living things, in order to make sense of biodiversity and how living things are related. For example, the classification of species is important in light of a changing environment because it helps scientists keep track of endangered species and what new species were formed because of the environmental change.
What is the weight of pure composed atmos element combined in definite proportion
Answer:
2.9 : 4.35 = 2:3
Explanation:
the law of definite or constant or fixed proportions more compounds, then the weight of 1 element that combines with fixed ratio of M and O atoms in oxide B=2.9 : 4.35 = 2:3
Recreate the sequence that occurs in the carbon cycle beginning with carbon dioxide gas.
combustion, atmosphere, soil organic matter, fossil fuel, plant biomass.
The four phases of the carbon cycle, which is vitally important for both plants and animals, are as follows:
What is carbon cycle?A sequence of environmental processes known as the "carbon cycle" involve the absorption of carbon dioxide into living tissue through photosynthesis, its release back into the atmosphere through respiration, the decomposition of extinct creatures, and the burning of fossil fuels.
1. Carbon dioxide, a type of carbon, is released into the atmosphere. Examples include combustion and breathing.
2. Plants use the carbon dioxide in the air, and following photosynthesis, they release oxygen into the atmosphere.
3. Environment-present animals consume plants and transfer carbon up the food chain. They breathe out carbon dioxide into the atmosphere. Animals and plants pass away after a specific amount of time.
4. Unless fossils of plants and animals are developed, which also contain carbon, the body of plants and animals is eaten through decomposition, returning the carbon to the environment in the form of carbon dioxide.
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trong chương trình lớp 7 các em đã học các ngành động vật nào?
Answer:
what's this can u explain me in hindi pls
Complete urinary obstruction causes which of the following? (Select all that apply.) Increased urinary stasis Increased urinary frequency Decreased hydrostatic pressure Decreased glomerular filtration Increased predisposition to infection
Answer:
hydrostatic pressure increaes and decreased in glomerula filtration and increase in urinary stasis
Explanation:
From what sources did water arrive in Earth’s atmosphere?
However, in Earths First Billion years and over the past 4.5 billion years, the main source of water was from comets. We know that comets consist chiefly of chemical compounds that are either gases or liquids at earth-surface conditions: methane is one common component of comets and water is another.
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What effect does insulin have on the body? It raises blood-sugar levels. It lowers blood-sugar levels. It raises glucagon levels. It lowers glucagon levels.
it regulates blood sugar level.
Explanation:
Insulin helps control blood glucose ( sugar) levels by signaling the liver and muscle and fat cells to take in glucose ( sugar) from the blood. Insulin therefore helps cells to take in glucose (sugar) to be used for energy. If the body has sufficient energy, insulin signals the liver to take up glucose ( sugar) and store it as glycogen.
Which statement describes the genes within DNA?
Write the changes occurring in the passage through the alimentary canal as a person has ingested roti and dal as a part of his meal
Answer:
A person had roti and dal for his lunch. Trace the changes in those during its passage through the alimentary canal. Answer: ... The saliva contains an enzyme salivary amylase (ptyalin) which converts starch in roti into maltose, isomaltose and small dextrins called a-dextrin.
Explanation:
Arborviral diseases: Group of answer choices Refer to arthropod-borne viral diseases Can produce central nervous system illness Are most often spread by mosquitoes May produce acute self-limited fevers
Answer:
All of the options are correct.
Arboviral diseases are arthropod borne, they can produce central nervous system illnesses, transmitted by mosquito bites and also produce acute self limiting fevers.
Explanation: Arboviruses are viruses that are harboured by arthropods which includes mosquitoes, they have the capacity to cause illnesses which are acute and self limiting(it has the ability to resolve on its own without treatment). It has also been found to cause illnesses to the central nervous system(the brain and the spinal cord).
differentiate between kidneys and lungs
Kidneys are used to excrete urine and toxic wastes. They are very essential for keeping the body clean. Usually it excretes urea, sodium and some salts which are considered as waste in the body.
Lungs are used to breathe in and out air. It helps us to stay alive. We breathe in oxygen rich air and breathe out foul carbon dioxide air.
Describe and explain how temperature and light intensity affect the rate of photosynthesis?
Answer:
The rate of photosynthesis varies with light intensity and temperature.
Explanation:
The rate of photosynthesis varies with light intensity.it decreases as light intensity decreases and increase s as light intensity increases. However at much higher light intensity rate of photosynthesis becomes constant.
The rate of photosynthesis decreases with decrease in temperature.It increases as temperature is increased over a limit. But if light intensity is low increase of temperature has little influence on rate of photosynthesis.
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A. dark brown sea lions absorb too much heat from the sun during the day
B. dark brown sea lions blend in with the color of rocks and escape predators
C. light brown sea lions’ fish prey are attracted to the light color of their fur coat
D. light brown sea lions are able to compete with other organisms for resources
Answer:
B. dark brown sea lions blend in with the color of rocks and escape predators
Explanation:
The lighter sea lion population is going down while the darker sea lion population is going up. This means that dark brown sea lions have some kind of natural advantage over light brown sea lions.
which instrument is used to measure volume of liquid in laboratory?
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
Explanation:
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An area that used to be wet and rainy has now become a dry desert over time.
Which plant adaptations would be most favorable in the new environment?
Select one:
Large, widespread root systems.
Weak, thin stems.
Broad, flat leaves.
Big, colorful flowers.
Answer:
c
Explanation:
edmentum
I need help im not understanding what to do.
For this assignment, you'll be creating a document or project. Now that you have an idea of the organ systems in the human body, it’s time to choose one that interests you the most. Use the links below to find detailed information about the organ system you choose. You will use this information to create a poster in Glogster or PowerPoint that illustrates the major facts and details of the system you chose. To make it fun and interesting, create a “ Travel Guide” that takes the reader through the system, detailing the organs in that system and what they do for the body.
To complete this assignment follow these steps: Choose your organ system to profile. Research the following information about your organ system: Short description of the organ system: What does the “organ system” do? (IE: endocrine system) How is the system organized? What are the major organs in this system? What is the main or most important organ in the system? How do these organs work together to do what they do? What are the functions in the human body that are done by this organ system? What would happen to the body if this organ system “failed”, or didn’t work right? Use the links to websites to gather that information. Save any graphics you want to use in creating your Poster.
If you choose Glogster: Go to Glogster and follow their instructions in setting up an account. It’s easy and it’s free. Watch the tutorial and then get started!
Answer: Here's a power point on the endocrine system. I hope this helps.
Explanation:
How do mutations affect the production of proteins in our bodies?
Answer:
By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition.How are gymnosperms in category gnetophyta usually pollinated?
A. by wind
B. by hand
C. by insects
D. by water
Answer:
by insects
Explanation:
See the image below!
Answer:
it is cytosine part of deoxyribonucleic acid
Resources have an ethical value if A. They are used to produce goods. B. We have a right to take advantage of them. C. They are particularly beautiful. D. We have a duty to protect them.
Answer:
D.Explanation:
Ethical values mean that a resource is important to conserve, protect, and use responsibly.
I'm always happy to help :)The Peppered moth is white with black spots, which helps it blend in with the bark on beech trees. The burning of coal in Great Britain caused many beech trees to become black with soot. Over time, the Peppered moth became all black in order to blend in with the new bark color. What type of example is this? homeostasis metabolism organization adaptation
Answer:
adaptation
Explanation:
Adaptation in Biology refers to the process whereby an organism adjust to its natural environment in order to increase its chance of survival or in other words, the organism becomes better suited to its natural habitat by possession of some adaptive features.
In this example, a white peppered moth with black spots initially possess these color combination in order to blend to its natural environment, which is the bark on beech trees. However, due to the burning of coal in Great Britain which caused many of the beech trees to be black, the peppered moths had to ADAPT to this change in environmental color by becoming all black in order to blend in with the new bark color.
Therefore, this is an example of ADAPTATION.
Answer:
adaptation
Explanation:
Dr. Ignaz Semmelweis was a Hungarian doctor investigating the deaths of women in his
maternity ward from childbed fever. Which statement below is a valid hypothesis made by
Dr. Semmelweis?
O Doctors caused childbed fever.
Midwives caused childbed fever.
If doctors disinfect hands before delivering babies, then there will be less childbed fever.
o If a woman goes into the hospital then she will die of childbed lever.
The investigation for death of women in maternity ward is identified by scientific method of hypothesis testing.
The null hypothesis statements and alternative hypothesis statement can be as,
H0 : Doctors caused child bed fever.
Ha : Midwives caused child bed fever.
Child bed fever is the infection in some part of female reproductive organs usually ovary which causes the abortion of a child or premature child birth.
The hypothesis to check Dr.Ignaz have to make a null hypothesis statement against which there will be alternative hypothesis statement which will cause the observation and then reaching a conclusion.
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An investigation is an example of_____.
A. inquiry
B. pseudoscience
C. the scientific method
D. bias
Answer:
C) the scientific method / Maybe A) depending on teacher..
Explanation:
A) inquiry - an act of asking for information.
B) pseudoscience - a collection of beliefs or practices mistakenly regarded as being based on scientific method.
C) the scientific method - a method of investigation in which a problem is first identified and observations, experiments, or other relevant data are then used to construct or test hypotheses that purport to solve it.
D) bias - prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
Is there just one universal scientific method?
Answer:
There is no such unique standard method—scientific progress requires many methods—but students in introductory science courses are taught that `The Scientific Method' is a straightforward procedure, involving testing hypotheses derived from theories in order to test those theories.
Explanation:
mitosis cell division are required to form 64 cell for one cell?
a.4
b.6
c.16
d.32
Answer:
im not sure
Explanation:
what is the difference between animal and plant tissues
Answer:
1) Plant tissue has a stationary phase.
2) They do not necessitate a large amount of energy
3) They have more dead cells because mechanical energy is produced.
4) They are capable of preparing their own meals
5) They are divided into two categories: meristematic and permanent tissue.
Tissue from animals:
1) They're at the locamative stage.
2) They need a significant amount of energy
3) They have a higher number of live cells.
4) They are unable to produce their own food and must rely on other organisms.
5) They are classified into four types: epithelial, connective, muscular, and nervous tissue.
What is the function of the Xylem in a leaf?
The century cactus flowers every 100 years. A similar and nearby cactus flowers every 50 years. If the 50-year-cactus pollen has the correct characteristics to fertilize the century cactus, which reproductive barrier will most likely be working against that possibility
Answer:
Temporal isolation
Explanation:
Temporal isolation, a type of reproductive barrier caused by variations in the timing of mating receptivity, activity, or fertility, prohibits interbreeding between different but closely related species.
What is the temporal barrier in reproductive isolation?In biology, temporal isolation is a form of reproductive isolation mechanism that prevents members of closely related species from mating and creating hybrid offspring.
Temporal isolation refers to the situation where two or more species reproduce at various periods. For instance, three different types of orchids live in the same rain forest.
This mechanism arises from differences in the timing of crucial reproductive events.
Therefore, Temporal isolation reproductive barrier will most likely be working against that possibility.
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genesis high grade heat and pressure is steps in what
Answer:
Metamorphic rock.
Explanation:
This is the answer I hope this help you out. Enjoy your day!