Answer:
A is the answer!
What prediction can you make about softness of potassium and vigor of its reaction with water?
Answer:
Chemical properties of the alkali metals
Atoms of group 1 elements all have one electron in their outer shell. This means that the alkali metals all have similar chemical properties.
Reactions with water
The alkali metals react with water to produce a metal hydroxide and hydrogen. For example, sodium reacts with water:
Sodium + water → sodium hydroxide + hydrogen
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Sodium hydroxide is an alkali. It is a base that dissolves in water to form an alkaline solution. This solution:
has a pH greater than 7
turns universal indicator solution blue or purple
Hydrogen gas is also produced. With very reactive metals such as potassium, the energy of the reaction causes the hydrogen to burn as the reaction takes place.
Explanation:
Answer:
potassium reacts rigorously with cold water. potassium is a soft metal. we can predict that potassium is a highly reactive metal.
Explanation:
hope this helps
In the human body, is every organ a part of only one organ system? Or are some organs a part of two or more organ systems? A. Every organ is a part of only one organ system, which is necessary because organ systems work independently of one another. B. Every organ is a part of only one organ system, although organ systems often interact with one another. C. Some organs are a part of two or more organ systems. For example, the heart is a part of the circulatory and digestive systems. D.
C
[From ck12.org] "An organ can be part of more than one organ system. For example, the ovaries produce hormones, which makes them a part of the endocrine system; the ovaries also make eggs, which makes them a part of the reproductive system as well."
what is binomial nomenclature
Answer:
binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages
Explanation:
good luck! hope this helps
What evidence did Mendel find that supported his law of independent assortment?
A. Some traits are controlled by several different genes.
B. Most traits have a dominant form and a recessive form.
C. A trait can be passed on from a parent to an offspring.
D. Different traits are passed on independently of each other.
Answer:
D
Explanation:
The evidence observed by Mendel supporting his law of independent assortment is that different traits are passed on independently of each other (Option D).
What is independent assortment?In genetics, independent assortment refers to the independent segregation of characters (genes) in offspring.
Independent assortment can be observed by crossing parental lines that exhibit different traits.In conclusion, the evidence observed by Mendel supporting his law of independent assortment is that different traits are passed on independently of each other (Option D).
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A student claims that a leaf is living, and a plastic leaf is nonliving. Which statement provides evidence to support the claim?
Answer:
The plastic leaf lacks cellular structure.
Explanation:
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1: ATP and photovoltaic cells are similar because?
A: they both produce chemical and electrical energy.
B: they are both key components of solar panels.
C: they are both key components of plant cells.
D: they both use energy from the sun to separate electrons from atoms.
2: Which molecule is a high-energy output of photosynthesis?
A: ADP
B: oxygen
C: hydrogen
D: glucose
3: In photosynthesis, light energy is?
A: captured as usable energy.
B: stored as chemical energy.
C: captured as thermal energy.
D: stored as short-term energy.
4: Which is a simplified equation for photosynthesis?
A: carbon dioxide + water + light → sugar + oxygen
B: water + oxygen → carbon dioxide + sugar + light
C: sugar + water → carbon dioxide + oxygen + light
D: carbon dioxide + oxygen + light → sugar + water
5: Starch is a carbohydrate formed by bonded glucose molecules. What type of reaction does this represent?
A: ATP
B: cellular respiration
C: photosynthesis
D: dehydration synthesis
The correct answers for these questions are option D, A, A, A, D.
ATP molecule and photovoltaic cells are similar to each other because both ATP and photovoltaic cells use energy of the sun that is used to separate electrons from atoms.ADP molecule is a high-energy output of photosynthesis that is used for different activities in the cell.In photosynthesis, light energy is captured as usable energy which is further used in the production of glucose molecules. The simplified equation for photosynthesis is carbon dioxide + water + light → sugar + oxygen. The sugar is stored in the body parts whereas oxygen is released in the atmosphere through stomata.Starch is a carbohydrate formed by bonded glucose molecules represents dehydration synthesis. Dehydration synthesis is the formation of larger molecules from smaller molecules with the release of water molecule.https://brainly.com/question/18743606
Answer:
1. They both produce chemical and electrical energy
2. ATP (ADP is a low-energy input)
3. Stored as chemical energy
4. Carbon Dioxide + Water + Light → Sugar + Oxygen
5. Dehydration Synthesis
Explanation:
Took the quick check (Although number two doesn't have ATP as a choice my check said it was ATP and not ADP)
With as much as detail as possible, give another example of an analogy for describing the difference between prokaryotic cells and eukaryotic cells
i have pdf of differences if you want i can send you
Which statement describes how the mantle is similar to Earth’s oceanic crust?
Answer:
c
Explanation:
The difference between the lower mantle and the oceanic crust is first their respective locations, pressure and temperature-- the pressure and temperature increases with depth in the earth this the mantle is more hot and under great pressure than the crust.
Answer:
It has varying degrees of thickness.
Explanation:
G1 – growth phase: Makes organelles and proteins needed for replication of DNA. Also contains a G1 checkpoint. If everything is correct, cell will proceed to S phase.
Answer:
correct.
Explanation:
cell will proceed to S phase for the duplication of chromosomes.
True or False: Diffusion requires energy input to occur.
Answer:
False
Explanation:
Diffusion does not require energy input from the cell. Diffusion transports water across the cell membrane.
Answer:
If you are talking about simple diffusion, the answer is false, but if you are talking about falicitated diffusion, the answer is True.
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Compare the data shown in the table. What reasonable conclusion can be made from the information given?
Identify the structures in the eukaryotic cell pictured on the right. Label A Label B Label C Label D Label E
A golfer collected data on the distance a gold cart traveled in a straight line and plotted it on a graph
Answer:
linear graph
Explanation:
PLS HELP : What is the purpose of apoptosis?
Check ALL that apply.
(4 Points)
to make sure it has enough water
eliminates unnecessary cells
removes unhealthy cells
takes out damaged cells
A worker who harvests vegetables would be susceptible to which of the following combinations of hazards?
-unsafe equipment and falls
-noise and vehicle injuries
-unclean conditions and respiratory risks
-heat and muscle injuries
Answer:
heat and muscle injuries
Explanation:
edge 2020
A student examining an unknown cell under a microscope notes it has a cell wall, cytoplasm, and genetic information contained within a nuclear membrane. Which inference would be correct?
Since the cell possesses a cell wall and genetic information, it has to be an animal cell.
Since the cell contains genetic information, it has to be a bacteria cell and prokaryotic.
Since it possesses a cell wall and DNA contained in a nuclear membrane, the cell must be eukaryotic.
Since the DNA is contained in a membrane and not in the cytoplasm, the cell must be a plant cell
Answer:
Since it possesses a cell wall and DNA contained in a nuclear membrane, the cell must be eukaryotic
Explanation:
Since the cell possesses a cell wall and genetic information, it has to be an animal cell.
-this is a plant cell because of the cell wall
Since the cell contains genetic information, it has to be a bacteria cell and prokaryotic.
-prokaryotes don't have DNA contained in a nuclear membrane
Since it possesses a cell wall and DNA contained in a nuclear membrane, the cell must be eukaryotic.
- DNA contained in a nuclear membrane --> eukaryototic
- cell wall --> plant cells, which are eukaryotic
Since the DNA is contained in a membrane and not in the cytoplasm, the cell must be a plant cell
-DNA is contained in a membrane should not lead to the conclusion that it's a plant cell, as it could be an animal cell too
The nuclues, ribosomes, ER, Golgi appartus, and vesicles are all involved in what process?
Answer: Protein synthesis
Explanation: The nucleus, ribosomes, ER, Golgi apparatus, and vesicles are all involved in protein synthesis.
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A plant has iron deficiency with dry, yellow leaves. How might yellow leaves affect a plant’s ability to photosynthesize?
Answer:
It will photosynthesize at a much slower rate
Explanation:
Chlorophyll is important in the process of photosynthesis. Leaves that aren't green are a physical sign of a lack of chlorophyll.
EXTRA POINTS* the particles in a ______ solid are arranged in a repeating pattern.
6. Name eight characteristics that all living things share.
Answer:
homeostasis reproduction sensitive cells grow adapt interact respiration consume energy
Answer:
respiration,digestion,exretion,circulation,reproduction,locomotion and movement,chemical coordination
Explanation:
All these characteristics are found in living things
The diagram below illustrates the movement of substances in a process the manufactures energy for many organisms. This process occurs within a plant cell
Answer:
can you insert the diagram please?
Which example uses collaboration to gain further knowledge?
A) A group of scientists working together to summarize results from prior experiments.
B) A group of scientists meeting and sharing results to determine who gets the credit for discoveries.
C) A group of scientists copyrighting their results to ensure other scientists do not plagiarize their work.
D) A group of scientists getting together to share the results of their experiments with each other and find a solution to a given problem.
Answer:
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Explanation:
In your textbook, read about chemical bonds.
Complete the table below by writing the type or types of chemical bond found in the type of matter
on the left. Use the following types of chemical bonds: covalent, ionic, metallic.
Matter
Type of Chemical Bond Present
13. Molecule
14. Hydrogen gas (H2)
15. Magnesium oxide (Mgo)
16. Metal
17. Table salt (NaCl)
18. Sodium monoxide (Na,0)
19. Water
Answer:
13.covalent,14.covalent bond 15.ionic 16 metallic 17.ionic bond 18.ionic 19. Covalent
Which molecules prevent cell membranes from dissolving in water?
O A. Nonpolar fatty acids
O B. Polar phosphate groups
C. Adenosine triphosphates
D. Large globular proteins
Explanation:
a nonpolar fatty acids
hope this help u
A non-polar fatty acids prevent cell membrane from dissolving in water. The correct option is A.
What is a cell membrane made of?The cell membrane, also known as the plasma membrane, is uncovered in all cells and serves to separate the cell's interior from the outside environment.
The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.
These are glycerophospholipids, which are molecules made up of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon compound that serves as the membrane lipids' backbone.
As, these non-polar fatty acids are insoluble in water, so it protect the cell membrane from water. It actually prevent the cell membrane to get dissolve in the water.
Thus, the correct option is A.
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Plants are made up of _________________, _______________________, ________________________, ________________________, and __________________.
Answer:
nucleus, chloroplasts, cell wall, cell membrane, mitochondria, cytoplasm and vacuole
Explanation:
I think this is right.
I hope this helps! :)
Answer: cell wall, rna, dna, glucose, ribosomes
Explanation:
1. What is the role of a receptor in helping an
organism maintain homeostasis?
A. receives messages sent by the control center
B. carries out a response to restore internal
conditions
C. detects stimuli and sends information to the
control center
D. compares current conditions with ideal values
for those conditions
Answer:
b
Explanation:
Homeostasis has been the tendency of the organism to maintain the equilibrium state. The stimuli are detected and transmitted to the control center by the receptors. Thus, option C is correct.
What is homeostasis?Homeostasis is the physiological process that monitors the internal environment of the body. This involves the feedback system that includes receptors that report and transfers the information to the control center of the body.
The receptor is involved in detecting the stimuli in order to generate the response through the feedback control system. The mechanism involves the effector that provides a response to the stimuli detected and transmitted by the receptors.
Therefore, in option C. the receptor sends information by detecting the stimuli.
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Which of the following best describes the flow of energy in the Everglades food web shown below? (4 points)
Diagram for an everglades food web. The food web contains the following organisms: American alligator, egret, raccoon, carp, Key deer, insects, Southern leopard frog, mangrove, and sawgrass. Mangrove is at the bottom of the food web, with arrows pointing to Key deer and insects. Sawgrass is also at the bottom of the web, with an arrow pointing to insects. Key deer, insects and Southern leopard frog are on the next level up. The Key deer has an arrow pointing to American alligator. The insects point to egret, carp, and Southern leopard frog. The Southern leopard frog points to the American alligator and the raccoon. The egret, carp and raccoon all points upward toward the American alligator. The carp also points to the egret. The American alligator is at the top of the food web.
a
Egret → insects → mangrove → key deer → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level.
b
Mangrove → insects → carp → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level.
c
Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
d
American alligator → carp → insects → mangrove; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Answer:
B
Explanation:
For B it simply had the table in order of words.
Energy will flow in this order . Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level. Hence, option B is correct.
What is a food web?All the food networks in a single ecosystem make up a food web. Each organism in an ecosystem is a link in a number of food chains. Energy and nutrients can go along different food chains as they move through the ecosystem.
The trophic levels are divisions into which organisms in food webs are categorized. These levels can be roughly categorized as producers (first trophic level), consumers, and decomposers (last trophic level).
Only 10 percent of energy transfers to the next level. Hence, option B is correct.
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What impact does an increase in temperature have on the rate of a chemical reaction?
A) Temperature has no effect on the rate of a chemical reaction
B) It decreases the rate of the reaction
C) It increases the rate of the reaction
Answer:
C) It increases the rate of the reaction
Explanation:
Hope this helps!
The respiratory system controls __________, and the circulatory systems controls __________. (5 points)
antibodies; digestion
breathing; blood flow
muscles; bones
nerves; senses
Answer:
respiratory- breathing
Circulatory- blood flow
Explanation:
Abiotic factors of an ecosystem can include ?
Answer:
Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature.