Help please
What is the correct term for digging tunnels deep into the Earth to reach a desired mineral?
surface mining
sub-surface mining
mountaintop removal
extraction mining
Answer: surface mining
Explanation:
You rush through your lab activity and obtain a percent error of 50 percent. Why might your percent error be so high?
Explanation: Can you be more specific with that plz?
there are the same number of these two particules in an atom? What is it
your brain and neurons are in constant action, sending billions of ___________and________messages each day to keep everything, from deep recesses of the brain to the remote wilderness of your toes in touch
halp me ;-;
Answer:
Until recently, most neuroscientists thought we were born with all the neurons we were ever going to have. As children we might produce some new neurons to help build the pathways - called neural circuits - that act as information highways between different areas of the brain. But scientists believed that once a neural circuit was in place, adding any new neurons would disrupt the flow of information and disable the brain’s communication system.
In 1962, scientist Joseph Altman challenged this belief when he saw evidence of neurogenesis (the birth of neurons) in a region of the adult rat brain called the hippocampus. He later reported that newborn neurons migrated from their birthplace in the hippocampus to other parts of the brain. In 1979, another scientist, Michael Kaplan, confirmed Altman’s findings in the rat brain, and in 1983 he found neural precursor cells in the forebrain of an adult monkey.
These discoveries about neurogenesis in the adult brain were surprising to other researchers who didn’t think they could be true in humans. But in the early 1980s, a scientist trying to understand how birds learn to sing suggested that neuroscientists look again at neurogenesis in the adult brain and begin to see how it might make sense. In a series of experiments, Fernando Nottebohm and his research team showed that the numbers of neurons in the forebrains of male canaries dramatically increased during the mating season. This was the same time in which the birds had to learn new songs to attract females.
Why did these bird brains add neurons at such a critical time in learning? Nottebohm believed it was because fresh neurons helped store new song patterns within the neural circuits of the forebrain, the area of the brain that controls complex behaviors. These new neurons made learning possible. If birds made new neurons to help them remember and learn, Nottebohm thought the brains of mammals might too.
Other scientists believed these findings could not apply to mammals, but Elizabeth Gould later found evidence of newborn neurons in a distinct area of the brain in monkeys, and Fred Gage and Peter Eriksson showed that the adult human brain produced new neurons in a similar area.
For some neuroscientists, neurogenesis in the adult brain is still an unproven theory. But others think the evidence offers intriguing possibilities about the role of adult-generated neurons in learning and memory.
if wrong report me
Which ones are correct?
Answer:
25%
Explanation:
One out of 4 boxes will have a large B, 25 x 4 = 100, thus your answer is 25%.
What is toxic pollution?
Answer:
It is when things get contaminated like water, soil, and air and it can be harmful and poisonous.
In which cellular organelle is genetic information (DNA) held?
A. Mitochondria
B. Ribosomes
C. Cell membrane
D. Nucleus
Answer: d. nucleus
Explanation:
Is this statement true or false? Celia loves to download music from an illegal website. She uses the music in her documentary about saving the environment. She is behaving responsibly. true false
PLEASE HELP,
shadow lolbit
Answer:
False
Explanation:
It is not a responsible approach to getting the music you want by illegally downloading it.
Answer:
False
She is not behaving responsibly
Unscramble the words
Answer:
1. Bacteria
2. Blood
3. Biologist
4. Base
5. Bones
1. Bacteria∫™
2. Blood∫™
3. Biologist∫™
4. Base∫™
5. Bones∫™
Which of the following foods will digest most completely in this system?
What is subduction and what causes it?
Answer:
Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle. Regions where this process occurs are known as subduction zones.
Explanation:
2. Which of the following is NOT a necessary input for the process of photosynthesis?
A. CO2, (carbon dioxide)
B. Sunlight
C. H20 (water)
D. 02 (oxygen)
Cactus plants, which grow in deserts, have a thick waxy coating that helps prevent water loss. The plants' sharp
spines provide protection from predators. Which of the following statements best explains why cactus plants
evolved to have these traits?
Answer:
C
Explanation:
Survival of the fittest shows that plants/animals with traits better suited for survival in their environments usually pass those traits to their offspring to help them survive.
Cactus plant with these traits were better able then other cactus plant to survive and pass these traits on to their offspring.
How do cacti adapt to the desert?Stems that can store water. Widespread or very deep root systems that can collect water from a large area or from very deep underground.
Why are cactus found in desert region?Cactus is found in dry and hot areas where rainfall is minimal and the land is arid. Their leaves are evolved into thorns to prevent transpiration and they can store water inside them.
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Compare asexual and sexual reproduction. Place each statement into the correct box.
Answer:
Explanation:
asexual doesn't require a mate or another thing to reproduce. sexual requires another thing to reproduce like a male and female
Answer:
During asexual reproduction, the organism that is reproducing spits in two.
A sea anemone reproduces asexually.
During sexual reproduction, there are two organisms(male and female) that are part of the reproductive process.
Humans reproduce sexually.
Explanation:
Question 4
1 points)
A scientist warms a chemical to 385 K, and the chemical begins to boil. How much higher is this boiling point of the chemical
than the boiling point of water?
12K is the boiling point of the chemical .
The boiling point of any liquid changes to the applied pressure the normal boiling point is the temperature at which the vapor pressure is equal to the standard sea-level atmospheric pressure .At sea level, water boils at 100° C (212° F).The boiling point of a liquid is the temperature at which its vapor pressure is equivalent to the pressure of the gas above it.
Boiling point is used to identify and classify a given compound. A liquid boils when its vapour pressure is equal to the atmospheric pressure. Vapour pressure is also defined by the kinetic energy of a molecule. Kinetic energy is dependent on the temperature, mass and velocity of a molecule.
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Eukaryotic cells are somatic non-sex cells true or false
Answer:false
Explanation:somatic and non-sex is the same thing. Although Eukarytic cells can be sex cells, there are also some that are non-sex cells.
As you walk to physics class, you start out at a speed of 2 m/s, for a time of 120 seconds (you’re really excited to get to class). Then you see your friend and slow down to a speed of 0.5m/s for 30 seconds. You stop at your locker for 40 seconds (a speed of 0 m/s). You realize that you are about to be late so you hurry to class at a speed of 1 m/s and get to class just as the bell rings (4 minutes after your trip started). How far did you travel total?
Answer:
The total travelled distance is [tex]51065 \mathrm{~m}[/tex]
Explanation:
• Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.
• Calculate total speed;
[tex]\therefore \text { Total Speed }=2+0.5+0.0+1=3.5 \mathrm{~m} / \mathrm{sec}[/tex]
• Calculate total time taken;
[tex]\therefore \text { Total time taken }=120+30+40+14400=14590 \mathrm{sec}[/tex]
• To find total travelled distance, use the formula
[tex]\text { Distance }=\text { Speed } \times \text { Time }[/tex]
[tex]\mathrm{d} &=3.5 \times 14590 \\[/tex]
[tex]&=51065 \mathrm{~m}[/tex]
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how can the amino acid sequence determine the characteristics of an organism?
Answer:
\/(*^*)\/
Explanation:
In what ways are active transport and passive transport similar?
Answer:
Active Transport and Passive Transport are similar because then both have nutrients, oxygen, water, and other essential molecules to the cells along with the elimination of waste products.
Describe some of the properties of water and explain how the structure of water is responsible for these properties.
Answer:
The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. A water molecule is slightly charged on both ends. This is because oxygen is more electronegative than hydrogen. ... The stream of water bends due to the polarity of water molecules.
Explanation:
Complete the half reactions for the cell shown here, and show the shorthand notation for the cell by dragging labels to the correct position. the electrode on the left is the anode, and the one on the right is the cathode.
The question is incomplete, the complete question is;
complete the half reactions for the cell shown here and show the shorthand notation for the cell by dragging labels to the correct position. The electrode on the left is the anode, and the one on the right is the cathode.
in the left side there is a solution of Pbcl2(s) and it contains the elctrode pb and on the right side there is solution of AgCl(S) which contains the electrode Ag. There is inverted glass tube with Kcl (aq) on the left and and Kcl(aq) on the right.
Anode half-reaction:
Blank + 2Cl^- equilibrium arrow yields Blank + 2e^-
Cathode half reaction:
Blank +2e^- equlibriums arrow yields Blank + 2Cl^-
Shorthand notation: Please provide.
Answer:
Explanation:
Let us remember that oxidation occurs at the anode while reduction occurs at the cathode. This will guide our work here. The Pb(s)/Pb^2+(aq) is the anode while the Ag^+(aq)/Ag(s) is the cathode
Anode half-reaction:
Pb(s) + 2Cl^- ⇄ Pb^2+(aq) + 2e^-
Cathode half reaction:
2Ag^+(aq) + 2e^- ⇄ 2Ag(s) + 2Cl^-
Overall reaction equation;
Pb(s) + 2Ag^+(aq) ⇄ Pb^2+(aq) + 2Ag(s)
Shorthand notation;
Pb(s)/Pb^2+(aq)//Ag^+(aq)/Ag(s)
What type of cat is a house cat
Answer:
Explanation:Answer. Domesticated cats all come from wildcats called Felis silvestris lybica that originated in the Fertile Crescent in the Near East Neolithic period and in ancient Egypt in the Classical period.
Answer:
:)
Explanation:
Domesticated cats can be house cats
5. Name 3 things bacteria are "notorious" for?
Answer:
While pathogenic bacteria are notorious for such diseases as cholera, tuberculosis, and gonorrhea, such disease-causing species are a comparatively tiny fraction of the bacteria as a whole. Bacteria are so widespread that it is possible only to make the most general statements about their life history and ecology.
Explanation:
hope this helps.
any other questions ask me.
According to ___________________, processes occur today as they did in the past.
Answer:
Uniformitarianism
Explanation:
Match each body to its best description:
black hole
?
a collapsed star that does
not let light escape
white dwarf
?
T
a star that has expanded
and cooled
red giant
?
an old, very dense, hot star
that is cooling
nebula
?
may collapse to form a
star
Answer:
Here u go
Explanation:
black hole=a collapsed star that does not let light escape
white dwarf=an old, very dense, hot star that is cooling
nebula=may collapse to form a star
red giant=a star that has expanded and cooled
Matching of each body to its best descriptions is given below:
Blackhole ---- a collapsed star that does not let light escape.White dwarf ---- an old, very dense, hot star that is cooling.Red giant ---- a star that has expanded and cooled. Nebula ---- may collapse to form a star. What do you mean by a Star?A star may be defined as any huge self-luminous cosmic body of gas that shines by radiation emanated from its internal energy sources.
These celestial bodies may provide some of the foundations and understanding of the mythologies, the system of religion, derivation of the earth's surface, etc.
Therefore, the matching of each body to its best descriptions are described above.
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Explain what is ecological conservation and conservation of the environment. What can you do to conserve the environment? Why do you think it is important to conserve the environment.
WILL NAME BRAINLIST!
Answer:
Conservation ecology is the branch of ecology and evolutionary biology that deals with the preservation and management of biodiversity and natural resources. Its goal is to find ways to conserve species, habitats, landscapes, and ecosystems as quickly, as efficiently, and as economically as possible.
-These are some examples of how we can conserve the environment:
Recycle your rubbish and participate in or help organize recycling campaigns.
Avoid littering and participate in or help organize litter clean-ups (here you can link to a website for volunteering or starting your own beach clean-up).
Use less plastic by, for example, carrying a reusable water bottle, saying no to disposable straws and cutlery, avoiding plastic toys, and bringing your own shopping bags (for further ideas on a plastic-free life take a look here).
Swap toys, movies, and books instead of buying new ones.
Donate, recycle, and repair electronic devices (see how here).
Use less water when brushing teeth, taking a shower, or washing the dishes.
Use less electricity by turning off lights and electronic devices when not in use, using energy-saving light bulbs, and hanging clothes to dry.
Use public transport, share a journey with friends (e.g., car-sharing), cycle, or walk when possible.
Use less paper by not printing unnecessary things and reading e-books.
Turn down the air conditioning when it is hot and use fans if you are still hot-they use much less power.
Turn down the heat when it is cold and use sweaters, blankets, and socks to keep warm.
Do not waste food and try to buy food that is grown locally and in season.
Hope this helps:)
During the process of photosynthesis, energy from the Sun is converted into A) chemical energy in the bonds of inorganic molecules B) chemical energy in the bonds of organic molecules like glucose C) enzymes used to produce inorganic molecules D) enzymes used to produce organic molecules
Answer:
b
Explanation:
Photosynthesis is the process of preparing food in the presence of sunlight, water, and carbon dioxide to yield sugar and oxygen.
The correct option is:
Option B. chemical energy in the bonds of organic molecules like glucose
The process of photosynthesis involves:
Photosynthesis is carried out by plants. The leaves are the primary site for photosynthesis. The chloroplasts present in the plant cells are primarily involved in photosynthesis. Photosynthesis involves the capturing of light energy and storing it in the form of bonds of organic molecules like glucose and starch. The process involves carbon dioxide, water, sunlight, and green pigment chlorophyll to carry out photosynthesis. The products of the process are oxygen and sugar molecules holding the energy.
Thus, the correct answer is option B.
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Winter wheat is planted in the early autumn, grows over the winter when the weather
is colder, and is harvested in the spring. As the temperature drops, the composition of
the cell membrane of winter wheat changes. Unsaturated fatty acids replace saturated
fatty acids in the phospholipids of the membrane. Why is this a suitable adaptation?
Answer: It is the cell membrane will change and unsaturated fatty acids replace saturated.
Explanation:
Because unsaturated fatty acids have a kink, substituting unsaturated fatty acids for saturated fatty acids in the cell membrane of winter wheat is a suitable adaptation for the increased fluidity present in Option A.
What are unsaturated fatty acids?Cell membranes are composed of a lipid bilayer, which is made up of two layers of phospholipid molecules and consists of lipids such as saturated and unsaturated fatty acids that differ in their chemical structure, Saturated fatty acids have no double bonds between the carbon atoms in their hydrocarbon chains, while unsaturated fatty acids have one or more double bonds that provide fluidity to the plasma membrane.
Hence, substituting unsaturated fatty acids for saturated fatty acids in the cell membrane of winter wheat is a suitable adaptation for the increased fluidity present in Option A.
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The question is incomplete, complete question is below
Winter wheat is planted in the early autumn, grows over the winter when the weather
is colder, and is harvested in the spring. As the temperature drops, the composition of
the cell membrane of winter wheat changes. Unsaturated fatty acids replace saturated
fatty acids in the phospholipids of the membrane. Why is this a suitable adaptation?
A)increased fluidity
B)decreased fluidity
C)not increased fluidity
a regular solid has dimensions of 3.20 cm by 4.90 cm by 5.40 cm. the mass of the solid is 235g. what is its density in g/cm3
Answer:
2.775415722
Explanation:
density is Mass divided by volume
Animals have an advantage over plants with the ability to move. What structure does animals not possess that allows us to be mobile?
Large central vesicle
Mitochondria
Chloroplasts
Cell Wall
