Answer:
mole =
Explanation:
mole no. = mass in gram / molar mass
mole no. = 42/18
mole no. =2.33
Explain the difference between asexual and sexual reproduction
Answer:
Asexual reproduction is when a living thing reproduces with only a single parent. Sexual reproduction involves two parents and chromosome change.
Explanation:
Ex of Asexual reproduction: Ferns, bacteria, animals, etc.
Ex of Sexual reproduction: Animals, some plants, etc.
Meaning of chromatos
A. color writing
B. Color forming
C. Color spreading
D. None of these
chromato meaning
Chromato- is a combining form used like a prefix meaning “color.” It is used in many scientific and medical terms. In cell biology, chromato- specifically refers to chromatin, “the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division.”
Most living organisms are composed of whitch group of elements
Answer: In all living systems we can always find 4 basic elements: carbon, oxygen, nitrogen and hydrogen. Carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.4 %. Oxygen and hydrogen are present in almost all organic compounds which create living organisms.
Explanation:
11. (a) Define the following terms (i) Spermatogenesis (ii) Oogenesis
Answer:
A. answer
Spermatogenesis is a process farming of spermatoza from germ cell(spermatogonium/spermatogonial) that happened in seminiferous tubules of the testis.
B. answer
oogenesis is the formation of ovum or eggs,starts in the ovaries of the foetus before birth.
Describe the processes of metabolism and photosynthesis
Carbon dioxide is converted into sugars in a process called carbon fixation; photosynthesis captures energy from sunlight to convert carbon dioxide into carbohydrate. ... These nutrients are oxidized to produce carbon dioxide and water, and to release chemical energy to drive the organism's metabolism.
Answer:
Carbon dioxide is converted into sugars in a process called carbon fixation; photosynthesis captures energy from sunlight to convert carbon dioxide into carbohydrate. ... These nutrients are oxidized to produce carbon dioxide and water, and to release chemical energy to drive the organism's metabolism.
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(a)
2.
The diagrams below show the patterns produced on an oscilloscope by three
different sound waves.
M
А
B
с
(0)
Which two waves have the same loudness?
Write the letters.
and
In the diagram attached, the option that shows the two waves have the same loudness is option A and C.
What is the statement about?Note that in the diagram The letters may be in either order and both the letter and the correct explanation are need for the marking of the their amplitudes as they are the same.
Therefore, In the diagram attached, the option that shows the two waves have the same loudness is option A and C.
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What are the conditions for osmosis to occur in animal cells?
Describe polarity in your own words.
Answer:
Explanation:
polarity can mean different things based on how you use it but in chemical bonding its the distribution of the electric charge over the atoms in the bond and in chemistry its typically physical properties such as melting and freezing point but like i said it depends on how its used
Which of the following is true of a scientific theory
Answer:
please put the papers snapshot
Which of the following is true about science and technology?
A.
Advancements in science cannot lead to advancements in technology, and technological advancements cannot lead to scientific advancements.
B.
Advancements in science can lead to advancements in technology, and technological advancements can also lead to scientific advancements.
C.
Advancements in science can lead to advancements in technology, but technological advancements cannot lead to scientific advancements.
D.
Advancements in science cannot lead to advancements in technology, but technological advancements can lead to scientific advancements.
Compare types of models. Which model of the human digestive system is most detailed?
A. Photograph of digestive system
B. Dissected pig
C. Artist drawing
D. 2D computer-generated model
The model of the Human digestive system that is most detailed is ( B ) : Dissected Pig
Pigs and Human have similar internal organs and the locations of each organ in both mammals are similar as well, therefore from the options the closest model that is most detailed as regards to the Human digestive system is a dissected pig.
A photograph of the digestive system does not provide a detailed model, also an artist drawing cannot provide as much detail as needed. A 2d computer-generated model will only present the digestive system in 2 dimensions hence it is not detailed enough as well.
Hence the most detailed model is a Dissected pig model.
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Hi! help here thanks
Answer:
Observations are things that can be directly seen and talked about. Inferences are things that you believe correlate with each other. For instance, the dog wagging its tail must be happy because it is a guess, not a fact. An example of an observation is The girl is wearing a blue shirt with white straps because you can directly see it.
Explainhow carbon moves thoughout an ecosystem.
Answer:
Hi, Friend!
Carbon moves through Earth’s ecosystems in a cycle referred to as the carbon cycle. It is through carbon dioxide gas found in Earth’s atmosphere that carbon enters the living parts of an ecosystem.
Explanation:
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According to endosymbiosis, what is the best explanation about how eukaryotic cells evolved?
Bacteria that were capable of photosynthesis engulfed smaller, heterotrophic bacteria.
Cells that did not fully separate during cellular division fused, forming larger organisms.
Chloroplasts and mitochondria were once prokaryotes that began to live within larger cells.
Two or more prokaryotes fused to form larger, multicellular organisms.
Answer: C
Explanation:
1. Is it advisable to switch the microscope on while looking through the eyepiece?
Answer:
yes ithink its important to switch on
What describes how a large host cell and ingested bacteria could easily become dependent On one another for survival resulting in a permanent relationship
Answer:
The endosymbiotic theory describes how a large host cell and ingested bacteria could easily become dependent on one another for survival
Explanation:
Which phrase describes air pressure?
decreases with denser air
decreases as altitude decreases
equals mass divided by volume
decreases as a result of fewer air particles pushing down
The phrase which best describes air pressure is: decreases as a result of fewer air particles pushing down.
What is pressure?Pressure can be defined as a measure of the force exerted per unit area of an object or physical body. Thus, it is usually measured in Newton per meter square and calculated by using this formula:
[tex]P = \frac{F}{A}[/tex]
Where:
P is the pressure.F is the force.A is the area.The types of pressure.In Science, there are different types of pressure and these include the following:
Hydrostatic pressureOsmotic pressure Filtration pressureAtmospheric (air) pressureIn conclusion, air pressure is also referred to as atmospheric pressure and it generally decreases due to fewer air particles pushing down on the surface of planet Earth.
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A cell in the basal layer of the skin contains 46 chromosomes and divides by mitosis to produce new skin cells. After ten successive divisions, how many chromosomes will the basal cell have?
Answer:
2
Explanation:
after 10 successful division, the basal cell layer will remain two
What are some viable ways of lessening the effect that increased carbon has on global warming?
Answer:
reforestation
detoxification of harmfull gasses from industries and vehicles
Explanation:
Please select the correct answer
Answer:
2nd option is correct..100 points plus brainly!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Starch, glycogen, and cellulose are all made of chains of
A section of DNA called a __________ codes for the production of _____________.
The flow of genetic information in molecular biology follows the following path, A) DNA is translated into protein B) DNA is transcribed into RNA which is translated into protein C) DNA is translated into RNA which is transcribed into protein D) RNA is transcribed into protein
Answer:
The Correct answer is DNA is transcribed into RNA which is translated into protein
Explanation:
The genetic information is unidirectional, from DNA to proteins. First, DNA is transcribed into an intermediary RNA molecule is known as transcription (TC), a further messenger RNA molecule (mRNA) is translated into a corresponding sequence of amino acids (translation). This concept of information flow is known as the central dogma of molecular biology.
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NEED ANSWER ASAP PLEASE!!
describe the characteristics of life that carbon atoms have and any characteristics of life that it does not have. Be sure to explain how each of the 7 characteristics of life are either present or not present.
Characteristics of life:
1. homeostasis
2. organization based on cells
3. metabolism
4. growth
5. evolution and adaptation
6. response to stimuli
7. reproduction
Answer:
i don't know try e
Explanation:
What are some ways of reducing the effects of global warming
What are the total number of subatomic particles found in the electron cloud of an Aluminum atom?
Answer:
13 electrons pls pls mark me branilest
correctly identifies at least one item that produces each of the five percussive tones (resonance, hyperresonance, dullness, flatness, and tympany
medsim respiratory system
Answer:
• pulmonary resonance: lungs are 99% air
• percussion notes:
Resonance : low, hollow, lasts , long
Hyperrsensonance: higher, booming, lasts long
Flatness: or Dullness : soft short
Tympany: high, drum-like
Explanation:
hope this helps :))
Other kinds of white blood cell have a different way of killing
pathogens.Explain how they do this.
Answer:
White blood cells defend against pathogens in three ways. Firstly they release anti-toxins, which neutralize the effect of toxins produced by bacteria. The second way they destroy pathogens is by engulfing/ingesting them.
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What happens to your pupil in dim light and in bright light? Why does this happen?
I'll give brainliest :D
Answer:
your eyes adjust to the light sorce
Explanation:
Arrange the rock layers from oldest to youngest re-examine The rock outcrops if you need to. Record the order in the student guide.
Basalt
Limestone with unknown fossil
Sandstone with trilobite
Shale with ammonite
Answer:
Youngest to Oldest
Shale with ammonite
Limestone with unknown fossil
Basalt
Sandstone with trilobite
