Answer:
WDYM
Explanation:
A researcher is viewing a cell that has cell walls. Which question would BEST help the researcher to narrow down the taxonomic group to which the cell belongs ?
Answer:
Does it have a nucleus?
Explanation:
Bacteria and Archaea have cell walls but no nuclei
Plant cells (Eukarya) have cell walls and a nucleus.
But remember not all eukaryotes have cell walls
Which type of molecular model is represented in this image?
O=C=0
A. dot diagram
B. space-filling model
C. structural formula
D. ball-and-stick model
Answer:
C. structural formula
Explanation:
thats the structural formula for carbon dioxide C2O
Alexandra fleming was working with a bacteria called staphylococcus which looked like bunches of grapes under the microscope. He could grow colonies of these bacteria on petri dishes with a growth medium. If mold contains a substance that kills bacteria then...?
Answer:
In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present.
Fleming thought that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died. He also added the same type of broth that had not been exposed to the mold, to a culture of the same type of bacteria. Nothing happened to the bacteria.
Explanation:
n 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present.
Fleming thought that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died. He also added the same type of broth that had not been exposed to the mold, to a culture of the same type of bacteria. Nothing happened to the bacteria.
l will give you 15 pointsHELPPPPPPMEEEEEEEEEEE
The deep blue color of the starch and iodine solution disappears when it reacts with saliva. Which of the following best explains the rate of disappearance of the color when the substances in the test tubes were mixed?
Faster in Bath 1 as molecules collide more frequently in Bath 1 than Bath 2
Faster in Bath 2 as molecules collide more frequently in Bath 2 than Bath 1
Faster in Bath 1 as molecules move slower in Bath 1 than Bath 2
Faster in Bath 2 as molecules move slower in Bath 2 than Bath 1
Answer:
Faster in Bath 2 as molecules collide more frequently in Bath 2 that Bath 1 .
Explanation:
Answer:
B
Explanation:
Which kind of metamorphosis is depicted in figure A?
what kind of currents bring warm air to land?
Answer: A warm current is just the reverse. A warm current is moving away from the Equator toward the poles. The water in a warm current is warmer than the surrounding water.
Explanation: The surface water temperature varies considerably between the Equator and the poles. As the ocean water is distributed across the Earth's surface by drifts and currents (see the infrared satellite photo of the warm Gulf Stream moving north along the east coast of Florida), warm water from the lower latitudes is moved into the higher latitudes and cold water is moved Equatorward. If you will remember, we noted in the section on Latitude that this redistribution of heat by ocean water is one of the major ways excess energy is moved poleward (and cold water is moved Equatorward).
I hope this helps, good luck
Which stage in the cell cycle occurs only once in both mitosis and meiosis?
cytokinesis
interphase
prophase
telophase
Answer:
C - Prophrase
Explanation:
Even before modern observations provided evidence that supports the Theory of Plate Tectonics, people developed theories that the continents were once joined together. Using only maps, they observed that -
a
most of the larger land masses are in the Northern Hemisphere.
b
continents with the most moderate climates were located near the Equator.
c
the shapes of continents appeared to allow them to fit together.
d
the oceans have decreased in size throughout the history of Earth.
Answer:
C the shapes of continents appeared to allow them to fit together
Using only maps, people observed that the shapes of continents appeared to allow them to fit together (Option d).
What is continental drift?The continental drift theory is a model to explain why continents are separated and they seem to fit together.
According to this model (continental drift), continents are separated due to their progressive movement in geological time.In conclusion, using only maps, people observed that the shapes of continents appeared to allow them to fit together (Option d).
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WILL GIVE BRAINLEST 20POINTS PLS HURRY!!!!!!!!
Read the passage.
Never Say Never
Carlos slammed the door angrily. He flopped down on his bed and turned on his side, tears streaming down his face. He did not—no, could not— understand why his whole family was pressuring him. It was not like he was going to be a contestant on “Kids in Concert” or some other show that could win them money. It was a stupid school talent show.
In a fog, Carlos let his memories wash over him. He was just five- or six-years old, daring, and uninhibited. He sang tunes from his favorite cartoons and TV shows. He memorized lyrics effortlessly. The family karaoke machine was no match for Carlos. When he finished singing, the living room swelled with applause as family members requested encore after encore.
Carlos was ALWAYS singing. He sang in the car, in the shower, and in the backyard. His family was so used to hearing his serenading that they barely lifted their heads when he passed by. He sang for his closest friends as they walked to the mall, the pool, or the park. He even sang to the family dog, Boomer.
And Carlos had loved it—that is, until now. Last week, his lifetime of confidence collided with catastrophe, and his confidence vanished.
As he remembered he and his friends gathered at the mall, Carlos shuddered. On a dare, Carlos started singing—at first, just loud enough so his friends could hear, but then at their request, louder and louder, until . . . nothing came out.
A wave of panic seemed to overtake him, and suddenly, he froze. Beads of sweat formed on his face as he realized that his natural talent no longer seemed natural.
The look of shock on his face was matched only by the dumbfounded looks on his friends’ faces. At that moment, Carlos sincerely wished that the floor would just swallow him up. To make matters worse, Teresa Mendoza, head of the talent show committee, was there. She did not laugh, but still, she was a judge! As he ran out of the mall, he vowed to avoid her—and everyone else—for the rest of his life.
Now, at home and a week later, a perplexed Carlos had spent hours trying to figure out what had happened. It was as though some evil minion had entered his brain and begun criticizing him for having the foolish notion that he could sing. Having this kind of stage fright was embarrassing and something he had never experienced before. Carlos vowed to never sing in front of others again.
His mother brought him her trustworthy remedy—hot tea with honey. His father suggested that he was just in a “slump” and that, with time, he would again belt out popular songs.
Carlos did not care. They clearly did not comprehend the gravity of the situation. As Carlos continued to lie fuming on his bed, the doorbell rang.
The voice that carried upstairs sounded lively—and female. Who was it? As his curiosity prodded him to peer over the bannister, he heard his mother calling him, announcing the presence of Teresa Mendoza.
Carlos cringed as instinct took over, pleading with him to either dart back up to his room and crawl out the window onto the roof, or dash into the nearest closet. The choices were grim.
Mother’s voice grew closer as she explained that Teresa and Chelsea French, another talent show committee member, were stopping by to be sure that Carlos was planning to register to audition this year.
Huh?
Carlos gradually made his way downstairs as he could scarcely believe his ears. He heard phrases like “only that one time,” “incredible talent,” and “music instructor that would hold practice sessions” as well as a slew of other words that did not register in his brain.
After the women left, his mother smiled at him and said, “See?”
Carlos shook his head and frowned as he glanced at his mother, pride overruling his delight at what was taking place at that moment. But in his heart, he felt just the tiniest of possibilities that perhaps his singing days weren’t over after all.
In the story, "Never Say Never," which character is dynamic?
Chelsea French
Teresa Mendoza
Carlos
Carlos's mother
Which gas does not occur naturally in the atmosphere in any amount but was solely created by human activity? Support your answer with evidence from the chart.
Answer:
Carbon monoxide.
Explanation:
Carbon monoxide is a gas that consists of an oxygen and a carbon to be able to fulfill the complete molecule, it is a potentially dangerous gas for life on this earth.
On the other hand, what differentiates it from carbon dioxide is that it has two oxygens that are coupled with a carbon to fulfill the complete molecule.
Both gases are pollutants, and produced by man, it is considered that these in high partial pressures in the atmosphere generate a mortal potential for humans since they have more affinity with the hemoglobin protein that is the human gas transporter par excellence, the which oxygenates the tissues.
If the oxygen drops in partial pressure and these toxic gases increase, the hemoglobin having a higher affinity will bind to them and toxify the human body, preventing oxygenation.
What can biodiversity influence within an ecosystem?
Answer:
People depend on biodiversity in their daily lives, in ways that are not always apparent or appreciated. Human health ultimately depends upon ecosystem products and services (such as availability of fresh water, food and fuel sources) which are requisite for good human health and productive livelihoods. Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict. Additionally, biological diversity of microorganisms, flora and fauna provides extensive benefits for biological, health, and pharmacological sciences. Significant medical and pharmacological discoveries are made through greater understanding of the earth's biodiversity. Loss in biodiversity may limit discovery of potential treatments for many diseases and health problems. There is growing concern about the health consequences of biodiversity loss. Biodiversity changes affect ecosystem functioning and significant disruptions of ecosystems can result in life sustaining ecosystem goods and services. Biodiversity loss also means that we are losing, before discovery, many of nature's chemicals and genes, of the kind that have already provided humankind with enormous health benefits. Biodiversity plays a crucial role in human nutrition through its influence on world food production, as it ensures the sustainable productivity of soils and provides the genetic resources for all crops, livestock, and marine species harvested for food. Access to a sufficiency of a nutritious variety of food is a fundamental determinant of health..
Hope this Helps!
During night time hours, photosynthesis decreases due to the lack of sunlight. Which of answers BEST describes what may happen as a result.
-Water will cease to flow through the vascular tissue.
-Leaves will turn yellow and wilt.
-Guard cells will close off the stomata.
-Cambium will go through a period of accelerated mitosis.
Answer: the correct answer would be D) guard cells will close off the stomata
I chose the above answer and it was incorrect
The answer that best describes what may happen as a result is cambium will go through a period of accelerated mitosis. The correct option is d.
What is photosynthesis?Photosynthesis is the process by which green plants convert light energy from the sun and carbon dioxide into glucose and oxygen in the presence of chlorophyll.
As a result, the false assertion about photosynthesis is carbon dioxide is produced during photosynthesis. Photosynthesis is a process that takes place in the chloroplast organelle of plant cells.
The typical light reaction of photosynthesis occurs within the chloroplast's thylakoid membrane. Water and carbon dioxide are the primary reactants in the reaction. In the reaction, the water is oxidized, releasing oxygen as a byproduct. Carbon dioxide is reduced.
Therefore, the correct option is d, Cambium will go through a period of accelerated mitosis.
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Compare the appearance and pH of the unfiltered and
filtered polluted water. What conclusion can be made
based on these observations?
Answer:
The unfiltered polluted water is not clear and is yellowish in color. The filtered polluted water is clear with a little bit of yellow color. The pH readings are beyond the range in which organisms can grow. Based on these observations, I can conclude that even though water may look clean, it could actually not be clean or it can still be harmful to living things.
The undesirable products present in the water are known as pollution. The things which cause the pollution is called a pollutant.
The products are as follows:-
PlasticDebrisMudToxic waste from the industriesThe ph helps to check the concentration of the water. The ph of filtered water and unfiltered water is very different.
The ph of filter water is slightly acidic due to the presence of more H+ ions. while the ph of the unfiltered water is basic due to the presence of more nutrients.
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How do plants compensate for the constant loss of water by transpiration?
Answer:
Transpiration is the evaporation of water from the surface of leaf cells in actively growing plants. ... If water loss is greater than water uptake, air bubbles can form in the xylem. Plants reduce water loss by closing their stomata, developing thick cuticles, or by possessing leaf hairs to increase the boundary layer.
Big Question:How is energy/matter transferred throughout an ecosystem?
Answer:
Food webs can transfer energy because the proteins from an animal can go on, this benefits ecosystems.
Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water permeable. This waxy coating is considered which biomolecule?
a.
lipid
c.
nucleic acid
b.
carbohydrate
d.
protein
Lipids are ubiquitous in plants. They store metabolic energy, protect against dehydration and pathogens, carry electrons, absorb light. Lipids also contribute to the structure of membranes.
Answer:
A. lipid I guess that is the answer
Large molecules must first be broken down
into simpler molecules in the process
known as...
a. Digestion
b. Circulation
c. Excretion
d. Respiration
Respiration is the process whereby food substance is broken down in simpler molecules
Enzymes , last question pls help
Answer:
A
Explanation:
in the inner mitochondrial membrane, in contrast with most of the reactions of the citric acid cycle and fatty acid oxidation, which take place in the matrix.
Answer:A
Explanation:
How might designer children affect the population of humans on earth?
mass divided by volume
Answer:
It has both mass and volume. Mass measures the amount of matter in a substance or an object. The basic SI unit for mass is the kilogram (kg). Volume measures the amount of space that a substance or an object takes up. The basic SI unit for volume is the cubic meter (m3)
what are the names of wild animals
Bella
2. Coco
3. Max
4. Buddy
5. Daisy
6. Lola
7. Angel
8. Luna
9. Lucy
10. Harley
11. Charlie
12. Pepper
13. Shadow
14. Gracie
15. Jack
16. Milo
17. Rocky
18. Sadie
19. Stella
20. Nala
21. Oliver
22. Penny
23. Ruby
24. Chloe
25. Cleo
26. Duke
27. Ginger
28. Molly
29. Sophie
30. Baby
31. Bear
32. Bailey
33. Maggie
34. Marley
35. Oscar
36. Peanut
37. Lucky
38. Abby
39. Cooper
40. Dexter
41. Loki
42. Oreo
43. Sammy
44. Tucker
45. Belle
46. Leo
47. Louie
48. Romeo
49. Sam
50. Sasha
51. Bandit
52. Emma
53. Finn
54. Jake
55. Jasper
56. Kiwi
57. Mia
58. Scout
59. Sunny
60. Teddy
61. Toby
62. Willow
63. Ariel
64. Athena
65. Bruce
66. Dakota
67. Diesel
68. Gizmo
69. Honey
70. Jax
71. Lady
72. Minnie
73. Murphy
74. Piper
75. Rosie
76. Simba
77. Spike
78. Sunshine
79. Zeus
80. Ziggy
81. Ace
82. Apollo
83. Buster
84. Cookie
85. Frankie
86. George
87. Henry
88. Izzy
89. Jackson
90. Lulu
91. Riley
92. Thor
93. Zoe / Zoey
94. Barney
95. Bentley
96. Bruno
97. Dixie
98. Hank
99. Hazel
100. Jade
PLEASE PLS PLS PLS HELP ASAP!!! WILL GIVE BRAINLIEST IF RIGHT ANSWERS
Answer:
1.) Metamorphic rocks 2 .) Metamorphic rocks 3.) sedimentary,
Explanation:
Hope this help :)
Which organ of the digestive system does not directly contact food?
A. stomach
B. esophagus
C. pancreas
D. large intestine
pancreas
Explanation:
In addition to the GI tract, there are digestion accessory organs (salivary glands, pancreas, gallbladder, and liver) that play an integral role in digestion. The accessory organs do not come directly in contact with food or digestive content.
When the net force of opposite forces is zero, the forces are
A)not even
B)unequal
C)unbalanced
D)balanced
Answer:
d balanced
Explanation:
trust me
LOOK AT THE PICTURE!!
What colored shapes Gillian will NOT need for her model of the electron transport chain?
A. green oval
B. orange circle
C. small yellow circle
D. yellow star
Answer:
in my opinion I would say it would be letter C
The colored shape that Gillian will not need for her model of the electron transport chain is the orange circle. Thus, the correct option for this question is B.
What is Cellular respiration?Cellular respiration may be defined as a type of chemical process through which oxygen is utilized in order to make energy in form of ATP from carbohydrates mostly glucose that was synthesized during photosynthesis.
The electron transport chain receives electrons from NADH and FADH2 in the mitochondrial matrix. So, electrons, ATP, and NADH, FADH2 are involved in her model of the electron transport chain which is represented by a small yellow circle, yellow star, and green oval respectively.
Therefore, the orange circle is the colored shape that Gillian will not need for her model of the electron transport chain. Thus, the correct option for this question is B.
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gizmo photosynthesis need help with question 3 i looked up answer for it but there isn't or I have to pay for it
Answer:
answer no. 3
A limiting factor is a variable of a system that causes a noticeable change in output or another measure of a type of system. The limiting factor is in a pyramid shape of organisms going up from the producers to consumers and so on
Explanation:
1.Observe: SetTemperatureto 24°C,Light intensityto 50%, andCO2levelto 200 ppm.A.Move theTemperatureslider up and down. Were you able to increase oxygenproduction?a.No, I was not able to because oxygen production cannot increase more than24C.(Return the slider to 24°C when finished.)B.Move theLight intensityslider back and forth. Were you able to increase oxygenproduction?a.No, I was not able to increase oxygen production because it remained thesame from 27% to 100%.C.Move theCO2levelslider back and forth. Were you able to increase oxygenproduction?a.Yes, I was able to increase oxygen production because with a higher CO2level the production increased.(Return the slider to 200 ppm when finished.)2.Analyze: In this situation, what was the limiting factor? How do you know?a.The limiting factor was CO2 because when it was decreased or increased, itincreased oxygen production.3.Challenge: In each of the situations below, use the Gizmo to find the limiting factor.TemperatureLight intensityCO2levelLimiting factor25°C60%700 ppmLight intensity
15°C20%200 ppmTemperature30°C50%400 ppmTemperature4.
who many cups are in 1 ounce?
Answer:
how many cups are in 1 ounce
= 0.125
What are Examples of real life cell membraine
Answer:
brain to human
Explanation:
hope this helps
Could anyone answer this for me? thanks :)
Answer:
Your answers are:
1. Cerebrum
2. Thalamus
3. Brain Stem
4. Cerebellum
I will give the correct answer Brainliest answer.
The _____ secretes special enzymes that help the stomach digest fats.
1. stomach
2. esophagus
3. small intestine
4. liver
Answer:
Liver
Explanation:
The liver produces bile ,which digests fats, to help break down fats