The physical and chemical properties of elements change in predictable ways from one end of a period to another. Which of the following is true based on this feature of periodic table (p 312)?
Group of answer choices:
A : Potassium has more protons than Calcium
B : An atom of gold is smaller (atomic size) than an atom of platinum
C:The noble gases react with everything
D: Elements in Group 8 are more reactive than elements in Group 7
PLEASE AANYONE THIS IS MY LAST QUESTION ILL MARK BRAINLEST PLEASE!
Answer:
Are those your breast?
Explanation:
why this site
What is meant by the word "concentration"'?
Smalles to greatest
Answer: cells, tissues, organs, organ systems, organism
Explanation:
C) Explain why antibiotics can be used to treat bacterial infections, but not viral infections
Answer:
Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses.
Explanation:
You'll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.
Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses.
Explain how antibiotics can be used to treat bacterial infections?You'll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.
Thus, Antibiotics won't treat viral infections because they can't kill viruses.
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Which type of receptor binds to ligands that cannot enter the cell?
a. surface / membrane
b. intracellular
c. functional
d. cytoplasmic
Answer:
A membrane
Explanation:
GUYS HELP FAST THE SAM ONE
93
add the ones he got over 3 months to the ones he already had
The most basic definition of cellular respiration is that it is cells breaking down food to make energy. True or false?
Answer:
True
Explanation:
In cells, energy is obtained from food through the process of cellular respiration. In mitochondria, this occurs through aerobic respiration- here, cells breakdown sugars like glucose into carbon dioxide and water and energy in the form of ATP or adenosine triphosphate.
In cellular aerobic respiration:
C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
Which statement correctly describes the reason for the high specific heat of water?
A.) Water has unusually strong hydrogen bonding. These bonds require extra energy to break. Therefore, water has a high specific heat.
B.) The oxygen and hydrogen atoms in water molecules are bonded together with strong covalent bonds. The bonds require extra energy to break. Therefore, water has a high specific heat.
C.) Water is made of ions. The attraction between ions requires extra energy to break. Therefore, water has a high specific heat.
D.) The oxygen and hydrogen atoms in water molecules are bonded together with strong ionic bonds. The bonds require extra energy to break. Therefore, water has a high specific heat.
The answer is A.) Water has unusually strong hydrogen bonding. These bonds require extra energy to break. Therefore, water has a high specific heat.
if I ride my bike to school instead of walking, then I will get there faster what is the dependent variable
Answer:
you will get there faster.
Explanation:
this is all related to your rate of speed the faster you pedal the faster you reach school if you walk faster than ride it'll be the other way around.
Match the columns and chose the correct option. Column A Column B 1.The male reproductive part of a flower i) sepal 2. The female reproductive part of a flower ii) stamen 3. The part of the flower which protects it in bud stage iii) ovules 4. Part of a flower which develops into a seed iv) carpel
Explanation:
1.Stamen
2.carpel
3.sepal
4.ovules
Which process is similar to binary fission?
Answer: mitosis
Explanation: Binary fission is similar to mitosis in the way that the process ultimately leads to the production of two identical daughter cells. However, they differ in many aspects. While binary fission is for reproductive purposes mitosis is primarily for growth in multicellular organisms.
O Biology is the science of exception, Justify it with
examples
Answer:
Biology deals with living organisms which show enormous variations and, therefore, numerous exceptions are found.
There are two reasons:
Each organism evolved in a different way to adapt to their environments the best way possible.
It is not really so. There are common rules to biology as in physics, but the problem is we study much more complex systems. More complexity results in more emergent properties, thus they appear to be exceptions.
Biology deals with living organisms which show enormous variations and, therefore, numerous exceptions are found.
justifying it with examples:
1. All living cells have a nucleus except mature red blood cells of mammals.
2. Red blood cells of all mammals are without nucleus except those of camel.
3. Stem is the part of plant above the ground but potato, corm and ginger are underground stems.
4. Blood of all vertebrates is red due to the presence of hemoglobin but a shark, Carcharhinus, has colorless blood.
by the above examples you can see that biology the science of exception.
Explanation:
Does anyone have an answer for this???
Answer:
because the truck is moving
Explanation:
the force of the engine is bigger than the fractional force so the truck keep moving and do not stop.
Answer with Explanation:
The forces are unbalanced because the engine force (bigger force) and the friction force (smaller force) are not equal. Their difference in force is 40 N. This makes the truck move forward or in the direction of the bigger force. Its movement is being slowed down by the friction force.
Both of the forces are acting in opposite directions, but they are not equal in magnitude. Such occurrence can make an object either slow down or speed up. It could also change its direction. This is in accordance to "Newton's First Law of Motion."
In the Hershey-chase experiment, what happened to the bacteria that had been infected by viruses that had radioactive DNA, and to the bacteria that had been infected with viruses that had been marked with radioactive proteins?
Answer:
The bacteria infected with viruses that had radioactive DNA had become radioactive. The bacteria that had been infected with viruses marked with radioactive proteins were not radioactive.
Explanation:
The rest of the answers:
1.2
2.3
3.2
4.1
5.b
A student is comparing the cells of a prokaryote, an animal, and a plant.
Identifying which two cell parts would show that the cell was a plant cell, and not
a cell of a prokaryote or an animal?
a. nucleus and mitochondria
b. cell wall and chloroplast
c. cell wall and cell membrane
d. cell membrane and mitochondria
Answer: b. cell wall and chloroplast
Explanation:
Elisa feel tired because she has a condition
Answer:
I'm sorry to hear that.
Answer: Its because she has diabetes.
Explanation: Her cells are not getting enough glucose.
what adaptations facilitated movement of tetrapods to land - be sure to describe challenges that these adaptations helped them overcome.
Answer:
The second neck vertebra evolved to allow rotation of the neck for moving the head left and right. As tetrapod species continued to evolve on land, adaptations included seven or more vertebrae, allowing increasing neck mobility.
Explanation:
How does increasing carbon dioxide affect photosynthesis?
Answer:
An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor.
What is the process depicted in this figure and why is it important?
Answer:
The correct answer is - antigenic shift due to mutation.
Explanation:
In this image, there is a representation of the antigenic shift or change takes place to evolve to a new strain of influenza virus from the original virus that has a different antigen on the surface of the virus than the new strain. In this image it is shown that the surface H antigens went through a shift to form a new strain while N antigen remain the same.
This is important to adapt and evolve according the internal environment of the host show this type of mutation requires if moving from one host to another (human to pigs).
A single population is made of
A) multiple organisms of the same species.
B) multiple organisms of different species.
C) multiple communities.
D) multiple biomes.
Answer:
A) multiple organisms of the same species.
Explanation:
Answer:
A (multiple organisms of the same species.)
Explanation: hope this helps sorry if i'm wrong
Which of the following is NOT a threat to living ocean organisms?
A. evaporation
B. oil spills
C. pollution
D. over fishing
What is a disadvantage of asexual reproduction?
Answer:
Asexually reproduced offspring would have no genetic variation from the parent, being a perfect copy. This makes it so there is no genetic variation and disease would easily spread, since there would be no chance of an immunity gene showing up.
the principle of uniformitarianism states that ___.
a) a cross-cutting feature is younger than the rock layers through which it cuts
b) Rock layers at the bottom are older than Rock layers above them
c) sediment spreads out in flat, horizontal layers
d) geologic process that we observed today occurred the same way in the past
Answer:
D. Geologic process that we observed today occurred the same way in the past.
Explanation:
Hope this helped!Stand and let your hands hang next to your sides for a few minutes. Then, look at the backs of your hands. Do you see any bumps on the surface on top of your veins? What might those be, and what are their function?
When you stand and let your hands hang next to your sides for a few minutes, the bumps you see on your veins are the valves that help move blood to the larger veins.
What we know about vein valves.There are valves located throughout the veins in our bodies. Most of these are located in points where smaller venules fuse with the larger veins.
Their function is to prevent blood from flowing back into the smaller veins, thus helping with the normal blood flow of the body.
Given that the veins in our bodies are littered with small valves to help the blood return to the heart correctly, we can confirm that these are the small bumps that we can see when letting our hands down for a few mins, as they fill with the blood they try not to let flow back into the smaller veins.
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7. Imagine that all nations agreed to reduce greenhouse gas emissions by half in an effort to reduce global warming. In what ways could you revise this simulation, so it accounted for the influence of this solution on arctic habitat, and on the whale and seal populations?
If all nations agreed to reduce global warming then It would be good because the seals need icy conditions. So the less global warming then the more icy habitats there will be and the seals will have more places to live.
Hope this helps
The positive effect is that these greenhouse gases affect the arctic ecosystem, which also has a detrimental impact on the creatures that dwell there.
What is the effect of greenhouse gas?Because these greenhouse gases affect the arctic ecosystem, which also has a detrimental impact on the creatures that dwell there, having a positive effect.
This solution has a significant impact on the arctic habitat as well as the populations of whales and seals, accounting for the influence of this solution on arctic habitat.
Therefore, by limiting the emissions of these greenhouse gases, the arctic ecosystem benefits, and the number of whales and seals rises, all nations agreed to reduce greenhouse gas emissions
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what is science ? explain .
Answer:
well in my view science is a technology without it we hadn't be sucess
How is the 7th Street Public Market helping farmers to further develop their careers?
Answer:
By celebrating the food culture and promote local and regional farmers.
Explanation:
the 7th Street Public Market helping farmers to develop their careers because this market aim is to promote local and regional farmers, food artisans and entrepreneurs by celebrating the food culture of the Carolinas. 7th Street Public Market is an urban food destination located in the center of Charlotte's Center City. So by promoting local and regional farmers, the development of careers of farmers occurs.
Today, the common type of banana we eat is a Cavendish banana. They arose from chance mutants that were produced sexually from wild banana plants. The Cavendish banana is infertile and can only be produced by cloning root shoots. Large commercial growers worldwide now plant only the mutant type. Some information about both types of banana is recorded in the table.
Growers on large banana plantations that supply food commercially have chosen to limit their plantings exclusively to Cavendish banana plants. Why are scientists warning that exclusively growing this mutant type by asexual reproduction presents a serious disadvantage
1.The loss of an adequate Cavendish banana seed supply could result in extinction of both varieties of plants.
2. The changes in characteristics from a parent plant to a clone will produce inconsistent plants that are less healthy.
3.The lack of genetic variability among clones puts the whole species at increased risk of extinction through a catastrophic disease or pest.
4.The increasing number of homologous sets of chromosomes crossing over with each successive generation of clones will eventually result in widespread death of banana plants.
Answer:
The lack of genetic variability among clones puts the whole species at increased risk of extinction through a catastrophic disease or pest.
Explanation:
Every living organism, be it a plant or an animal, has its own way of reproduction and its own mechanisms of how to cope with dangers. In recent times though, we see that there are more and more organisms, mostly plants, that are not fertile, thus they can not reproduce on their own but need human assistance. This is the case with one of the most popular fruits in the world, the banana.
Virtually, all bananas that are produced commercially are not fertile, but they can only be reproduced by cloning them. While this may not seem like something that terrible, it actually is. Every single plant that is used for commercial production is exactly the same, thus the genetic variation is lacking totally. By having zero genetic variation, if only one plant gets diseased by a disease that spreads out easily and is fatal, it will affect every single banana plant, and by having no genetic variation, the effect will be the exact same at all of them. This kind of scenario can very easily lead to the rapid extinction of these bananas and the loss of one of the most consumed fruits in the world.
does photosynthesis occur in mushroom give a reason to support your answer
Answer:
No
Explanation:
Although mushrooms and fungi have a cell wall like plant cells, fungi are unable to make their own food and must feed on decaying matter to gain the energy needed for survival.
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If grasshoppers were removed from this food web, which organism would suffer the most, the bird or the baboon? Explain answer please!!!
Answer:
The bird, it is smaller and will suffer more quickly but if any organism was removed, the whole food web would be disrupted but the bird will probably suffer more than the baboon.
Explanation: