Answer:
Ionic compounds are formed by the transfer of elecrons from highly electropositive element to highly electonegative element.
Covalent compounds are formed by the shairing of electrons between elements.
Explanation:
Where does respiration take place in the cell?
Answer:
The mitochondria is the location in the cell where most of cellular respiration takes place, although a small amount of cellular respiration does take place in the cytoplasm. The mitochondria is often called the power house of the cell because it is involved with making energy for the cell.
Answer:
aerobic respiration happens in the mitochondria.
What is the oxidation hall reaction for 2Mg+O 2 2MgO ?
Answer:
2Mg(s) → 2Mg2+ + 4e. On the other hand, O2 was reduced: its oxidation state goes from 0 to -2. Thus, a reduction half reaction can be written for the O2 as it gains 4 electrons: O2(g) + 4e− → 2O.
Explanation:
Cilia in the sinuses sweep away: air. carbon dioxide. irritants. water.
Answer:
air and carbon dioxide
Explanation:
Answer:
c
Explanation:
Neptune has a diameter of about 30,778 miles. Suppose you were making a
scale model of the solar system with a scale of 1 inch:1,000 miles. How wide
would Neptune be in your model?
A. 30,778 inches
B. 307.78 inches
C. 30.778 inches
0770
Answer:
The answer is C.
Explanation:
Given that the ratio of model to actual is 1 inch : 1000 miles. So in oder to find the wide of Neptune in the model, you have to divide it by 1000 :
[tex]1 \: inch:1000 \: miles[/tex]
[tex]let \: x \: be \: the \: length \: of \: model [/tex]
[tex]x \: inches:30778 \: miles[/tex]
[tex]x = 30778 \div 1000[/tex]
[tex]x = 30.778 \: inches[/tex]
Please Help ! Look at the diagram. What type of cell is shown by number 5?
Answer:
it will be a neuron
Explanation:
it will be unipolar neuron.it has a branch also
i have a request plzz mark this answer as brainliest
Neuron is that cell which indicates by diagram number 5 because the shape is just like the cell of neuron.
Neurons are the fundamental units of the nervous system. These neuron cells are responsible for receiving sensory messages from the external environment and send to nervous system and brain. The brain and nervous system sending commands to the muscles through motor neurons. This neuron cell is different from other types of cell so we can say that the diagram 5 represents neuron cell.
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The chart shows embryos of different animal phyla.
Based on the evidence of their embryos, which pair of phyla are most closely
related?
O A. Echinodermata and Annelida
O B. Mollusca and Arthropoda
O C. Mollusca and Echinodermata
O D. Annelida and Chordata
Answer: B
Explanation:
AP*X
Invertebrates with an exoskeleton, segmented bodies, and paired jointed appendages are known as arthropods.
Molluscan animals have soft bodies that are triploblastic, bilaterally symmetrical, and coelomate. Malacology is the study of Mollusks. They are slow-moving invertebrates with a thin fleshy envelope or mantle that protects the visceral organs.
What are the similarities between Mollusca and Arthropoda?They are triploblastic creatures.They are animals with bilateral symmetry.They're coelomates.They are organized at the organ system level.Thus, we can conclude that option B, Mollusca, and Arthropoda are correct.
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Describe some of the basic trends in hominid evolution (brain size, jaw size, language, and manufacture of tools) using at least five (5) sentences.
Answer:
Hominids refers to humans and its closest relatives such as the chimpanzee, gorilla etc.
The basic trends in hominid evolution include:
1. The use of the rear limbs or legs for walking instead of four.
2. There was also an increase in the abuse and discoveries of the terrestrial habitat.
3. Their brain was known to increase in size which made them more sophisticated in thinking and knowledge.
4. They started making tools and used it to hunt wild animals for food.
5. There was a change in their diet as it went from fruits, leaves and other staple foods to the inclusion of a large amount of meat as a source of protein.
While an important source of freshwater, groundwater is not as widely used as rivers and springs. Please select the best answer from the choices provided T F
Answer:
False
Explanation:
EDGE 2021
While an important source of freshwater, groundwater is not as widely used as rivers and springs. This is a false statement because groundwater is widely used.
What is the use of ground water?The fresh water is present in lakes, springs, rivers, and ponds, and some remains as groundwater. Apart from this, water is present in the ocean and sea, but that can't be used for drinking purposes. The fresh water can have a wide range of uses, such as drinking, using in industry, taking baths, etc.
The groundwater is heavily used for drinking purposes, as this is considered to be less polluted. River and spring water are getting polluted due to the discharge of polluted water from industries. Ground water is misused, and due to heavy water loss, the amount of water keeps on declining. People from different areas are facing the issue of getting drinking water.
Hence, groundwater is heavily used. The statement is false.
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Activity Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part A What are the student’s observations and inferences before he starts his investigation?
Answer:
OFFICIAL ANSWER (do not copy verbatim):
The student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.
Explanation:
How would you explain to an athlete why damaged joint ligaments and cartilages are so slow to heal following an injury?
Answer: They have little to no direct blood supply.
Explanation: “Ligaments and cartilage injuries are very common injuries for people who practice sports. Damaged joint ligaments and cartilage are slow to heal because these structures don't have a significant blood supply, which brings necessary fluid and nutrients to the injured place. These nutrients and fluids are essential for damage repairing. If ligaments and cartilage become injured, their limited blood and nerve supply result in a longer recovery and healing period.”
The reason why damaged joint ligaments and cartilages are so slow to heal
is as a result of little blood flow within them.
Cartilages and ligaments are connective tissues which help to connect
bones and other parts together. This part of the body has very little blood
flow and a result blood carrying nutrients aren't adequately supplied to the
region.
Different nutrients and compounds which promote healing and repair of
worn out tissues are found in the blood and failure to reach these regions is
why healing is slow.
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During replication, which enzyme works to join newly created DNA strands together along various sites of the DNA macromolecule? RNA ligase DNA polymerase DNA ligase RNA polymerase
Answer:
DNA ligase
Explanation:
please tell me if I'm wrong
What are DNA machines, according to Kraves?
Answer:
they are machines or devices build to find la DNA trace and copy it multiple times.
Explanation:
DNA machines are machines built to find a DNA line and copy it multiple times, so scientists can read, observe, and find information about the DNA strand. For example, DNA machines can determine if someone is related, if someone has cancer, and it can distinguish a person’s ancestry. Mainly this is how forensic science uses to determine when there's a suspect in a crime.
Answer:
Machines that can find any specific line of genetic information. They then copy the target gene until we are able to visualize it
Explanation: I watched the actual video
Which is one reason why hydrogen is considered a better fuel source for cars? It is nonrenewable. It produces carbon dioxide. It emits no harmful emissions. It combines with water to produce electricity.
Answer:
I’m pretty sure it’s .D
Explanation:
Hydrogen is considered a better fuel it emits no harmful emissions.
Hydrogen:Hydrogen is consider as clean fuel, when it is consumed with fuel cell produces only water. It is produced from variety of domestic sources such as natural source and renewable source such as solar and wind.
Hydrogen fuel can be used in:
Renewable liquid fuelsgasified biomassgasified coalDieselOnce hydrogen gas is generated it produces electrical power in a fuel cell, emitting water vapor and air. Hydrogen's energy content by volume is low.
Hydrogen storage is a challenge because it requires high pressures, low temperatures, or chemical processes to be stored compactly. Hydrogen fuel should now be feasible and easily available so that people can easily buy it.
Therefore, Hydrogen is considered a better fuel it emits no harmful emissions.
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PLEASE HELP I NEED IT TO BE RIGHT Which of these describes a method in studying plate movements? Select one: a. Observing absence of magnetic rocks in locations that do not match the poles Incorrect b. Match relief elements only on the western side of the Atlantic Ocean c. Recording the spread of the seafloor in the mid-Atlantic region d. Correlate the rotation of Earth to plate movement
Answer:
C. Recording the spread of the seafloor in the mid-Atlantic region
Explanation:
This seems to be the only logical answer. Since we are talking about a method in studying plate tectonics/movements, using evidence of it, seafloor spreading, would be the best idea out of the four.
Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other.
Hope this helped! :-)
Daniel’s doctor is trying to determine the cause of his recent onset of asthma symptoms. Of the information Daniel provided, which would his doctor find most helpful in determining a cause?
a.
Daniel had never experienced asthma symptoms until now.
b.
Daniel notices the asthma symptoms occurs more often during cross country practice.
c.
Daniel’s worst symptom is shortness of breath.
d.
Daniel’s sister was diagnosed with asthma at an early age.
Daniel worst symptom is shortness of breath.
That is also one of the emerging cause in asthma patients
Shortness of breath is the worst symptom which can help doctor determine his onset of asthma symptoms. Therefore, option (C) is correct answer.
What is asthma?A illness that affects your lungs is referred to as asthma. Although it is more prevalent in children than in adults, asthma is a chronic condition that can affect people of any age. In people who suffer from asthma, nighttime and early morning coughing, wheezing, shortness of breath, and chest tightness are common symptoms.
Even though there is no cure for asthma at this time, medication can help control the symptoms so that you can lead a normal, active life. The most common form of treatment involves the use of inhalers, which are handheld medical devices that deliver medication via inhalation. If your asthma is severe, you may also need to take tablets and participate in other therapies.
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Why can the more complex sugar cellulose store more energy than the sugar
glucose?
A. Cellulose is made by plants.
B. Cellulose is smaller than glucose.
C. Cellulose has more chemical bonds.
D. Cellulose contains hydrogen atoms.
Answer:
Cellulose has more chemical bonds
Explanation:
It is complex carbohydrates molecule and stores thosands of energy as in glucose
The statement (C) is correct. The cellulose has more chemical bonds.
What do you mean by cellulose?Cellulose is an organic compound with the formula ₙ, a polysaccharide consisting of a linear chain of several hundred to many thousands of β linked D-glucose units. Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes.
Moreover, cellulose, a tough, fibrous, and water-insoluble polysaccharide, plays an integral role in keeping the structure of plant cell walls stable. Cellulose chains are arranged in microfibrils or bundles of polysaccharide that are arranged in fibrils (bundles of microfibrils), which in turn make up the plant cell wall.
Hence, cellulose is an insoluble dietary fibre consisting of glucose polymers present in all cell walls of plants.
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What could a dog living now and a cat living thousands of years ago have in
common?
O A. They have some of the same matter.
O B. They have the exact same DNA.
O C. They have the same bone structure.
O D. They have the same amount of energy.
A dog living now and a cat living thousands of years ago have the same bone structure but now differs due to evolution.
What is evolution?"Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection."Despite the fact that each dog and cat is unique and has a few anatomical differences, they all have the same basic anatomy. The carnivorans separated into two main divisions some 50 million years ago, or earlier, in the Paleocene: caniforms (dog-like) and feliforms (cat-like) (cat-like).Some of the characteristics are changed due to adaptive radiation. What do you mean by bone structure?"The skeletal composition of a human or animal."Both cat and dog have four limbs and are furred.
Hence, the correct option is C. They have the same bone structure.
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why is the dominant allele called dominant.
A. There is always at least one dominant allele
b. there are always more dominant alleles in a genotype
c. it dominates the phenotype
d. the dominant alleles are the only kind that determine phenotype.
Answer:
It dominates the phenotype
Explanation:
Mechanisms of gene regulation
Mechanical weathering _____ change the composition of a rock, whereas chemical weather ______. Question 8 options: Does; does not Does not; does
Answer:
Mechanical weathering does not change the composition
Chemical weathering does change the composition
Explanation:
PLEASE HELP ME!! ASAP Why is it so difficult to tell the impact of pollution in the deep ocean region?
Explanation:
THE OCEANS ARE so vast and deep that until fairly recently, it was widely assumed that no matter how much trash and chemicals humans dumped into them, the effects would be negligible.
hope it helped
All forms of pollution eventually taint water. Air pollution contaminates lakes and oceans. An underground stream, a river, and ultimately the ocean could all become contaminated due to land contamination.
What is the impact of pollution in the deep ocean region?The consequences of the toxins aren't usually obvious or simple to spot. Only in the cases of marine debris, man-made noise, and acidification by atmospheric CO2 can cause and effect be clearly shown.
The unfavorable climate makes it difficult to study the ocean floor. Instruments like sonar can be used to pollution study the seafloor in an indirect manner.
In contrast to mapping the land, the sea floor can't be directly measured from space using radar, since the water there absorbs the radio signals.
Therefore, With the aid of unique vehicles, it may be directly researched. To the ocean floor, certain vehicles transport scientists and their equipment.
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The atmosphere is necessary for life on earth. Which one of the
following is not one of the life-supporting functions of the
atmosphere?
Select one:
a. Stores aerosol pollutants in the troposphere.
b. Contains gases necessary for cellular respiration.
c. Protects living organisms from harmful solar radiation.
d. Absorbs the sun's energy.
e. Plays an important part in the water cycle and many
nutrient cycles.
Answer:
A.
Explanation:
It is true that aerosol pollutants are present in the atmosphere, but they are usually harmful for life, so it doesn't support life functions. The other choices do help support life functions, so A is your answer.
Three students test the effect of fertilizer on bean plant
growth. Each student conducts one trial. They plant 10
bean seeds in each of three large pots of soil with different
amounts of fertilizer. After two weeks, they measure the
heights of the plants in each pot. Then they find the
average height for each amount of fertilizer. The table
summarizes the results of the experiment.
Effect of Fertilizer on Height of Bean Plants
Amount of fertilizer Average height after 2 weeks (cm)
Trial 1
Trial 2
Trial 3
None
18.9
21.5
40.2
A little
19.5
32.7
39.7
A lot
34.3
33.2
16.5
Which statement describes a pattern shown in the data?
Answer:
i think it b if it not i can look in too it more if you need
Explanation:
The the trend in the data for trial 3 shows that plants grow taller if given more fertilizer, the correct option is b.
What is fertilizer?A fertilizer, also known as a fertilizer, is any natural or synthetic material that is applied to soil or plant tissues to supply plant nutrients.
Fertilizers can be distinguished from liming materials or other non-nutritional soil amendments. There are numerous fertilizer sources, both natural and man-made.
Fertilizers are plant food. Fertilizers replenish the essential minerals lost by crops in the soil. Crop yields and agricultural productivity would be significantly reduced if fertilizers were not used.
It provides nutrients to the plants throughout the growing season. The base fertilizer, along with presowing fertilization and top dressing, forms the fertilizer system used in crop rotation.
The data from Trial 3 show that plants grow taller when given more fertilizer.
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Which is the immediate effect of being infected by last season's flu virus? A. get the last season's flu virus B. receive this season's flu vaccine C. Immune to last season's flu virus D. Produce antibodies that attach to this season's flu virus.
Answer:
probley
Explanation:
A. get the last season's flu virus
or
C. Immune to last season's flu virus
Which two statements describe organisms found in the kingdom Plantae?
O A. Their cells lack cell walls.
O B. They have prokaryotic cells.
O C. They are mostly autotrophic.
O D. They are multicellular.
SUBMIT
Answer:
C. They are mostly autotrophic.
D. They are multicellular.
Explanation:
I did this question on A P E X and it’s right hope this helps!!
Proof:
The statements that describe organisms found in the kingdom Plantae is that they are mostly autotrophic and they are multicellular. Thus, option C and D is correct.
What are Eukaryotes organisms?Eukaryotes organisms are organisms whose cells have a nucleus and membrane-bound organelles; whereas prokaryotic organisms are unicellular organisms that do not have membrane-bound structures and/or organelles. Eukaryotic organisms include animals (kingdom Animalia), plants (kingdom Plantae), fungi (kingdom Fungi), and protists (Kingdom Protista).
Multicellular organisms are organisms composed of two or more cells. Multicellular organisms include plants, animals and fungi. Photosynthetic organisms are organisms that make their own food from sunlight (e.g., plants).
Therefore, The statements that describe organisms found in the kingdom Plantae is that they are mostly autotrophic and they are multicellular. Thus, option C and D is correct.
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What plant physical structure or organ has a similar function to fish scales? Stem Stamen Bark Flower
Answer:
Bark
Explanation:
The scales on the fish serves as protection for the fish. And the tree bark serves as protection for the tree.
Bark has a similar function to fish scales and plant physical structure.
What is a fish scale?
"A fish scale is a small rigid plate that grows out of the skin."
What are the function of fish scales?
Fish scales primarily serve two purposes:
protection locomotionWhat is a bark?
"Bark is the outermost layers of stems and roots of woody plants."
What is the main function of a bark?
"The main function of bark is to protect the tree from the outside world."
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Select the right answer for each question.
7. The presence in the body of a disease is caused by.
a) germs
b) dead cell c) chemical unbalance
d) antibiotics
Answer:
A
Explanation:
The answer is A: germs.
Scientific explanations are the result of scientific reasoning. Whenever scientific reasoning is used,
takes place.
Answer:
The options are
A.) an active consideration of alternative explanations.
B.) a process to totally disprove alternative explanations.
C.) a process to prove a given explanation with logic.
D.) the collection of completely accurate observations.
The answer is D.) the collection of completely accurate observations.
Scientific reasoning results in a thoughtful process and consideration of several informations. This results in Scientific explanation as to the occurrence of such an event.
It is therefore imperative that whenever scientific reasoning is used there is the collection of completely accurate observations.
Match the type of rock with how it forms.
Sedimentary
?
Forms due to cooling
Igneous
?
Can form from decaying
animals
Metamorphic
?
Can only form
underground
Mainly three types of rocks are there namely igneous, sedimentary and metamorphic. Sedimentary rocks are formed by decaying animals, igneous by cooling and metamorphic from underground.
What are types of rocks?Rocks are the aggregates of minerals which have properties of all mineral traces. Each major rock can have different classification systems.
The major rocks can be of three types.
Igneous rocks: these are formed by cooling of magma or lava.Sedimentary rocks: these rocks are formed by dead and decaying animals.Metamorphic rocks: these are formed deep inside the Earth.Thus, the match will be like (i)b, (ii)a, (iii)c.
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What are the applications of Bioanalytical Service?
Explanation:
hope its wht u r searching for