Answer:
A. Segmented worms
Explanation:
Generally, the flatworm avoids light. The nervous system of the earthworm is "segmented" just like the rest of the body. The "brain" is located above the pharynx and is connected to the first ventral ganglion.
Why can water have no net charge but have slight charges in different parts of the molecule?
A. The oxygen end is slightly negative and the hydrogen end is slightly positive.
B. The hydrogen end is slightly negative and the oxygen end is slightly positive.
C. The hydrogen and oxygen ends change in polarity.
D. Because it is hydrophobic.
Answer:
A
Explanation:
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
Water molecules have no net charge but have slight changes in different parts of the molecule because the oxygen end is slightly negative and the hydrogen end is slightly positive (Option A).
Water (H2O) molecules form covalent bonds between oxygen and hydrogen.In a water molecule, the oxygen (O) atom slightly attracts electrons more strongly than atoms of hydrogen (H), thereby oxygen is more electronegative than hydrogen.There is no net charge in a molecule of H2O, however, this molecule has polar properties and therefore can be used by biological systems as a universal solvent.In conclusion, water molecules have no net charge but have slight changes in different parts of the molecule because the oxygen end is slightly negative and the hydrogen end is slightly positive (Option A).
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Juan was visiting his friend Brandon’s ranch, where there were several grazing animals. Juan helped Brandon move the animals from one area to another periodically throughout his visit. When he asked Brandon why it was important to move the animals, Brandon said that it prevented overgrazing. Juan asked what problems were caused by overgrazing. Brandon replied that it could lead to desertification and wind erosion. Juan wasn’t completely sure how overgrazing causes desertification. What is the missing part of Brandon’s explanation?
A. Overgrazing kills off plants whose leaves attract insects.
B. Overgrazing kills off plants whose roots are necessary to hold soil in place.
C. Overgrazing often leads to uncovering new layers of rock that are then eroded into sediments.
D. Overgrazing often leads to animals digging in the ground, which changes the flow of water over Earth’s surface.
Answer: Overgrazing kills off plants whose roots are necessary to hold soil in place.
Explanation:
Biographies help us understand people's decisions and _____.
A.)Personalities
B.)Influence on others
C.)The time in which they lived
D.)All of the above
Answer: D
Explanation:all are true
Answer:
The answer is D
Explanation:
This is because a biography tells every important milestone/achievement in the persons life
Hope this helps :)
What do you think is happening to the temperature as the aquanauts go deeper and deeper into the ocean? Hint: There is less sunlight down there!
Answer:
The deeper you go in any body of water, the colder it is, since hot water always rises, and cold water sinks.
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Answer:
The water getts colder the deeper you go. The sun light warms up the warter but when its really deep the sun cant hit the deeper water.
Explanation:
Which of the following describes the Decca Navigator System?
compares longwave radio signals from different locations
uses low frequency radio signals to determine a ships location
provided navigation, location, and timing services for civil and military sea vessels
uses radar signals to locate moving vessels
Answer:
compare longwave radio signals from different locations
Explanation:
Which organism is a decomposer
A.
earth worm
B.
herbivore
C.
omnivore
D.
tertiary consumer
what do you observe happening to the amount of sunlight as the aquanauts go deeper and deeper into the ocean?
Answser:
If this is what you are looking for if not, tell me.
There is less and less sunligt. It gets darker and harder to see.
Explanation:
Which of the following statements about water is NOT TRUE?
a. Water molecules are able to hold strongly to other water molecules because of hydrogen bonding.
b. Water is a polar molecule and will dissolve most any solute it is exposed to.
c. Water is less dense in its solid state than it is in its liquid state.
d. Water cannot moderate its temperature and will absorb or release heat energy very quickly
Answer:
Explanation:
B is not true
how does deforestation affect droughts and floods?
Answer:
Sorry don't know the answer.
If you drop a metal paperclip into a cup of water, it will sink to the bottom, however with practice, you can gently place a metal paperclip on the surface and it will balance or appear to float. Why does this happen?
A. Water has strong hydrogen bonds that result in it having strong surface tension allowing the paperclip to float.
B. Due to the polarity of water, the positive hydrogens bond with the paperclip causing it to float on the waters’ surface.
C. The negative ions are attracted to the paper clip allowing it to float.
D. Water has weak hydrogen bonds that cause it to have poor surface tension allowing the paper clip to float.
Answer:
The answer is A because the water has strong surface tension, I didn't know why but I know it's surface tension holding it up so it has to be A
If a parent organism reproduces by budding, how will the offspring look?
a
The offspring will be diverse from the parent organism.
b
The offspring will be identical to the parent organism.
c
There will not be any offspring because budding is not a type of reproduction.
I'd say b
I hope I could help in some way! <3
Answer: b
Explanation: the offspring will look identical to the parent organism I am doing this right now also but I'm ahead and I did a unit test on this so I hope it's right!
6.
Which idea is supported by information throughout the selection?
The Olympic Games provide an opportunity for people to set aside their differences in order to celebrate a common interest in sports.
Pierre de Coubertin understood the importance of colorful symbols as a part of athletic competitions.
Selecting Greece as the location of the first modern Olympic Games was a difficult decision for the International Olympic Committee.
The International Olympic Committee has full authority to set and uphold rules for the modern Olympics.
The idea supported by information throughout the selection is "The Olympic Games provide an opportunity for people to set aside their differences in order to celebrate a common interest in sports."
What is the idea?The selection deals with the history and purpose of the Olympics, emphasizing the idea that the games are a way for people from different countries and cultures to come together and compete in good faith. and friendship.
Other options may be mentioned in the selection, but they are not supported by information throughout the text like the idea of the Olympics as a unifying force.
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I need help plz and thank you and asp this is for science
This section contained references to four outstanding men. Write a report on one of the three men who made an early contribution to ocean exploration. Choose one of these three men: Ben Franklin, Captain James Cook, or Matthew Maury.
can you guys do one about Captain James Cook
Answer:
Benjamin Franklin FRS FRSA FRSE (January 17, 1706 [O.S. January 6, 1705][Note 1] – April 17, 1790) was one of the Founding Fathers of the United States. A polymath, he was a leading writer, printer, political philosopher, politician, Freemason, postmaster, scientist, inventor, humorist, civic activist, statesman, and diplomat. As a scientist, he was a major figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity. As an inventor, he is known for the lightning rod, bifocals, and the Franklin stove, among other inventions.[1] He founded many civic organizations, including the Library Company, Philadelphia's first fire department,[2] and the University of Pennsylvania.[3]
In a population of 100 individuals allele frequency of the dominant allele is 0.7 so there are ______ individuals with the recessive phenotype
Answer:
.007 i just divided 0.7 into 100
Explanation:
explain the difference between an exotic species and an invasive exotic species
Answer:
The main difference between exotic and invasive species is that exotic species is harmless to the ecosystem whereas invasive species is harmful to the ecosystem.
Explanation:
Invasive species can be harmful the native habitats, natural areas such as lakes, forests, and rivers, agriculture, economy, and humans.
Distillation is a widely used method for separating mixtures based on differences in
boiling points as they change into the gas phase. The gas is then condensed back into
liquid form and collected. Which part of the equipment used below collects the
liquid with the highest boiling point.
A) the thermometer (labeledA)
B) the flask (labeled B)
C) The condenser (labeled C)
D) The test tube (labeled D)
———————————————
Look at the photo I attached to understand the choices more. I also think it’s either B or D but im really confused so somebody please help.
Answer:
its B it still holds the liquid so it is
Robert Hooke used a microscope to observe tiny spaces in dead cork bark.
What did his observations lead to the discovery of?
A.cell organelles
B.cell division
C.plant cells
D.Bacterial cells
Answer:
plant cells
Explanation:
please please please!! Hello me it due in half an hour!! ;-;
1. A friend says there are two new moons during any given lunar cycle. Explain why you agree or disagree.
2. Calculate the number of days during any given lunar cycle when a waning crescent is visible. Show your work.
3. If a full moon is approximately Day 14 of the lunar cycle, what would the angle measure be for Day 22? Use your angle measure for a full moon to set up a proportion, and show your work and all units.
Answer:1: Each lunar cycle we have one New Moon. Every 29.5 days we observe a New Moon from Earth. So I disagree. We never have two moons. Sorry I don’t understand the other two. :(
Explanation:
Which of the following is a long term consequence of mining on the earth?
A. Erosion
B. An open pit
C. Sedimentation
D. All of the above
PLEASE HURRY!!! God bless and merry Christmas and happy new year! :)
Stay safe! :) Have a great day and life! :)
Answer:
all of the above
Explanation:
everytime u see all of the above its most likely the answer
Help with this question, thanks!
Answer:
The kidneys, trust me
Sound waves travel fastest through what type of material?
a. solids
b. gases
c. empty space
d. liquids
Answer:
solids ... i hope this helps ; )
Explanation:
Put the number by which one you answer
Describe an example of an endothermic and exothermic reaction. For each of your reactions, identify whether it is a physical or chemical change and explain how the reaction supports the law of conservation of mass.
Answer:
he sum of the enthalpies of the reactants is greater than the products, the reaction will be exothermic.
Explanation:
The law of conservation of mass is obeyed by both endothermic and exothermic equations ,
What is endothermic reaction and exothermic reaction?An exothermic process releases heat, causing the temperature of the immediate surroundings to rise.
An endothermic process absorbs heat and cools the surroundings.
According to the question
An example of an endothermic reaction:
[tex]CaCO_{3}[/tex] + heat → CaO + [tex]CO_{2}[/tex]
An example of an exothermic reaction:
C(g) + [tex]O_{2}[/tex](g) → [tex]CO_{2}[/tex] (g) + Heat Energy
Chemical reaction:
Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the product
Physical reaction:
The physical reaction definition is a reaction in which molecules undergo molecular rearrangement but are not chemically altered. Physical reactions may include changes in texture, shape, temperature, and state, without a change in the composition.
Therefore,
both example of endothermic and exothermic example mentioned are chemical reaction as in both bonds are broken and formed
Now,
The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed and every balanced equation obeys the Law of Conservation of Mass.
In first endothermic :
[tex]CaCO_{3}[/tex] + heat → CaO + [tex]CO_{2}[/tex]
As the reaction is balanced , if we examine both the sides elements are in equal proportion
i.e mass is neither created nor destroyed
In second exothermic :
C(g) + [tex]O_{2}[/tex](g) → [tex]CO_{2}[/tex] (g) + Heat Energy
If 6 gm carbon combines with 16 gm of oxygen to form 22 gm of carbon dioxide.
I.e mass is neither created nor destroyed
Hence, The law of conservation of mass is obeyed by both endothermic and exothermic equations ,
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WILL MARK BRAINLIEST PLEASE HELP
Explain the theory of plate tectonics and how they have changed Earth’s surface over time. Include the role of plate tectonics in the creation of landforms in your own words.
Answer:
Each tectonic plate is free-floating and can move independently. Earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. The term fault is used to describe the boundary between tectonic plates. Most of the earthquakes and volcanoes around the Pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. Other observable results of short-term plate movement include the gradual widening of the Great Rift lakes in eastern Africa and the rising of the Himalayan Mountain range. The motion of plates can be described in four general patterns.
Use it to investigate the who, what, when, and where of Charles Darwin, the Galápagos Islands, and the theory of evolution by natural selection.
Answer:
During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but perfectly adapted to their environments which led him to ponder the origin of the islands' inhabitants. Among those that struck Darwin so greatly were the finches that are now named in his honor.
Explanation:
Areas near oceans or large lakes tend to have more moderate climates than do areas far from large bodies of water. Which of these statements best explains this observation?
a. Hydrogen and oxygen atoms share electrons in a water molecule.
b. Water has a very high specific heat.
c. Lakes and oceans contain dissolved solids.
d. Water produces buoyant forces.
Answer
B
Explanation:
Hope this helps
Which properties of water make it possible for water to move up the stems and trunks of tall trees?
a. Water’s high specific heat
b. Water’s lack of polarity
c. Water’s expansion upon freezing
d. Water’s adhesive and cohesive abilities.
2.
Which words from paragraph 1 help the reader understand the meaning of the word elite?
country’s finest examples
are ready to compete
enter the stadium
beam with pride
Hi .........................................
Hidden in Abuelita’s Soft Arms
by Daniel A. Olivas
Wrinkled and brown like an old paper bag,
Abuelita1 smiles with her too-perfect white teeth,
And she calls out as I run from Papa’s old, gray station wagon,
"Mi Cielo, come here! I need a big abrazo from you!”
5 And I bury myself deep, hidden in Abuelita’s soft arms,
Smelling like perfume and frijoles and coffee and candy.
A whole weekend with Abuelita!
I shout, “Bye, Papa!”
Papa smiles and drives off in a puff of white smoke.
10 I bury my face deeper into her,
Just me and Abuelita,
For the whole weekend.
We march happily into her house
Painted yellow-white like a forgotten Easter egg,
15 And cracked here and there like that same egg.
But it is her home,
Near the freeway and St. Agnes Church.
On the wall there are pictures of Mama and my two aunts.
And there’s one of Abuelita, so young and beautiful,
20 Standing close to Abuelito on their wedding day.
“Mi cielo,” Abuelita says holding my sweaty cheeks in her
Cool, smooth hands.
“You are so big! My big boy!”
And I laugh and stand on my toes to be even bigger.
25 And I bury myself deep, hidden in Abuelita’s soft arms,
Smelling like perfume and frijoles and coffee and candy.
From: LOVE TO MAMÁ A TRIBUTE TO MOTHERS. Poem by Daniel A. Olivas. Copyright © 2001 by Daniel Olivas. Permission arranged with LEE & LOW BOOKS, INC. New York, NY 10016. All rights not specifically granted herein are reserved.
h
Explanation:
wht a liehisbbw did hi on a reader and a friend of
