Answer:
In this scenario, the student applied the scientific method to solve her problem in that she first established there was a problem, then formulated some hypotheses about why there was a problem, and then did experiments to test the hypotheses.
Explanation:
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It's essential for students (and everyone) to stay adequately hydrated throughout the day to maintain overall well-being and cognitive function. Bringing a water bottle to class is a practical and healthy habit that can help the student remain focused and attentive during the class and other daily activities.
Hydration and Cognitive Function: Proper hydration is essential for optimal cognitive function. When the body is dehydrated, it can lead to feelings of fatigue and decreased mental alertness. Drinking water helps maintain the balance of body fluids, and the brain relies on adequate hydration to function at its best.
Blood Flow and Oxygenation: Staying hydrated supports proper blood circulation, including to the brain. Sipping water can help ensure that oxygen and nutrients are efficiently delivered to brain cells, enhancing cognitive performance.
Thirst as a Sign of Dehydration: Feeling sleepy or fatigued after eating lunch could be a sign of dehydration, especially if the lunch is salty or doesn't contain enough fluids. By sipping water during the mid-afternoon class, the student is addressing any potential dehydration and its associated effects on attention and alertness.
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____ is the green pigment in plants and algae that absorbs light
Answer:
Chloryphyll
Explanation:
which type of medium supports the growth of the widest range of bacteria
The medium that supports the growth of the widest range of bacteria is the enriched medium.
Agar plate mediums are used to promote the growth of certain bacterias needed for studies. Some bacteria respond well to one medium, but will not grow in another. For this reason, many kinds of mediums exist, including:
MinimalEnriched Selectivedifferentialand many others.
The Enriched medium supports the growth of the widest range of bacteria by containing a wide variety or nutrients and lacking in inhibitors like that of the enrichment medium which would not allow certain bacteria to grow.
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Really need help help
Answer:
The only way to tell the difference is the time of day -- the waxing crescent moon is seen in the evening and the waning crescent is seen in the morning. ... The moon takes 29.5 days to orbit the Earth (almost a month), meaning the waxing phases of the moon happen on different dates each month.
what is the single most common and characteristic feature of sedimentary rocks?
Answer:
horizontal stratification, or horizontal beds that are deposited as sediments blanket an area.
Explanation:
what organelle is critical for endocytosis and exocytosis to occur
Answer:
Endoplasmic Reticulum
Explanation:
The cell membrane, also known as the plasma membrane, is an organelle that is essential for both endocytosis and exocytosis to take place.
Thus, The cell membrane, which encloses the cell and separates its internal contents from the outside environment, is a barrier that is selectively permeable.
The process by which cells absorb materials from their surroundings is known as endocytosis. The cell membrane invaginates and creates a vesicle that encloses the substance being transported into the cell during endocytosis.
The vesicle is subsequently taken inside and moved into the cytoplasm of the cell. In this process, the cell membrane is essential because it helps the endocytic vesicle develop.
Thus, The cell membrane, also known as the plasma membrane, is an organelle that is essential for both endocytosis and exocytosis to take place.
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lipids are stored in an?
Answer:
adipose tissue
Explanation:
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please help!!!!!!!!!!!!!!!!!!
/ similiar chromosomes,one from each
parent
Why are sand dunes commonly found along the coast?(1 point) The salt in the water is needed to hold the sand together. The salt in the water is needed to hold the sand together. Moving water is needed to deposit the particles on the river bed. Moving water is needed to deposit the particles on the river bed. There is a lot of wind to carry the particles. There is a lot of wind to carry the particles. Heavy wave action is needed to move the sand.
it's the 2 one hope this help :)Answer:
Explanation:
what part of the femur articulates with the patella?
Answer:
The femur is the longest bone in the human skeleton. It functions in supporting the weight of the body and allowing motion of the leg. The femur articulates proximally with the acetabulum of the pelvis forming the hip joint, and distally with the tibia and patella to form the knee joint.
Explanation:
a biology teacher shows the class pictures taken while using different microscopes. the plant cells have visible chloroplasts, and a sample of human cheek cells shows a nucleus and a cell membrane. what type of microscope was used for these pictures?
If a biology teacher shows the class pictures where plant cells have visible chloroplasts human cheek cells show a nucleus and a cell membrane. then the type of microscope that was used is an optical microscope.
What is an optical microscope?An optical microscope is a device that contains different magnification lens that allows for increasing the size of the image. These lens include ocular and objective lens.
In conclusion, an optical microscope can be used to observe microscopic substructures such as chloroplasts in plant cells or the cell nucleus in human cells, which depend on the magnification of the image (cell nucleus: 1000 X).
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what can we infer if we see a large number of mitochondria in a cell?
Answer: It means the cell has a high metabolic demand.
Explanation:
A high metabolic demand means that the cell requires a large amount of energy released in the process called cellular respiration. The mitochondria are where most of the energy of the cell is made.
which structures are found in palisade cells and liver cells
Answer:
All cells contain a nucleus and a nuclear envelope and the liver cell is no exception. It has exactly the same control over the cell as the palisade nucleus does. To keep it all together, it is surrounded by a cell membrane.
Explanation:
Since a liver cell is an animal cell, it lacks chloroplast. Below the epidermis of the leaves is a palisade cell. It participates actively in photosynthesis, chloroplasts are present.
What structures are found in liver cells?Liver cells lack a cell wall but do have a nucleus and a cell membrane. It receives blood from two main sources: The Hepatic Portal Vein, which delivers blood from the digestive tract that is nutrient-rich.
The nucleus and nuclear envelope are components of every cell, including liver cells. The cell is under the exact same management that the palisade nucleus is. It is encased in a cell membrane, which serves to keep everything together.
Therefore, as an animal cell, the liver lacks the cell wall, chloroplast, and big vacuole that are often seen in plant cells.
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Moving materials through a cell membrane without using energy is called Blank transport
Answer:
passive
Explanation:
Because of mitosis, all cells, differentiated or not, except for sex cells have ______ DNA from the parent to daughters cells.
a.) identical
b.) different
c.) similar
Answer:
a.) identical
Explanation:
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cells.
What are “goblet cells” and in what type of epithelial tissue are they most commonly found
Answer:
a goblet cell is an epithelial cell that lines several mucosal
surfaces found in columnar epithelium tissue that secretes a protective mucus
The exoskeleton of an insect provides a stiff, protective armor. Despite the protection, How might an exoskeleton be a disadvantage for growth and movement?
Answer:
They can’t expand or stretch with out a synthesize a new exoskeleton underneath the old one and then sheds or molt the original covering.
An Exoskeleton be a disadvantage for growth and movement because exoskeleton Restricts the growth of the organism due to its rigidity.
what is an Exoskeleton?In contrast to the interior skeleton of a human, an exoskeleton is the external skeleton that supports and protects an animal's body. Some of the larger exoskeletons are referred to as "shells" in common language.
what are the advantages of Exoskeleton?Having a hard covering on the outside in the form of an exoskeleton is a great defense against predatorsit helps to support the body and it's like wearing a portable raincoat that keeps the creature from getting wet or drying outIt also protects the fragile interior organs and muscles of the animal from harmwhat are the disadvantages of Exoskeleton?An exoskeleton provides a significant restriction on growth. Arthropods must exfoliate, shedding their old shell and growing a new one, because their exoskeletons do not grow with them
thus exoskeleton may provide protection to the insect but ristricts the growth of arthropod.
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The human skeleton has 206 bones. The human skull has 22 bones. What percentage of human bones are skull bones?
Answer:
11% rounded
Explanation:
22/206 = .106796
Hope this helps, have a great day!!!!!
Answer:
10.6796116504854%
Explanation:
Identify the independent variable from the following hypothesis: If the temperature of the room is increased, then the assertiveness of the students will decrease.
Answer:
The temperature is the Independent Variable
Explanation:
account for the result obtained on the Strip when put in strong salt solution
Answer:
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Jeff conducted a simple experiment on the effect of rising temperature on food. He concluded that while heat is useful for cooking food, it can lead to food spoilage if food is left outside in hot weather. He presented his results to his science class. How should the teacher and students respond if they are skeptical?
A.
Accept Jeff's results as true.
B.
Reject Jeff's conclusion.
C.
Repeat the experiment themselves.
D.
Be indifferent to Jeff's conclusion.
E.
Ask Jeff to stop experimenting with food.
Answer:
Repeat the experiment themselves.
Explanation:
Answer:
C. repeat the experiment themselves
Explanation:
I need help please. I need help please I need help please
Answer: 1: bacteria, 2: cytoplasm
Explanation: that all I got I guess
Answer:
Prokaryotic
DNA floats in the cytoplasm (no nucleus)
Cell structures for movement
1. Flagella
2. Cilia
3. Pseudopod
Eukaryotic Cells
Have a nucleus that surrounds and holds their DNA
Have other membrane bound organelles
Eukaryotes
All multicellular organisms are eukaryotic.
Explanation:
This is all I have at the moment.
The reactants for a biochemical reaction are C6H12O6 + 6O2. What will be the products for this reaction, and where does the reaction take place?
Answer:
Glucose ( 6 carbon atoms) is split into 2 molecules of pyruvic acid (3 carbons each). This produces 2 ATP and 2 NADH. Glycolysis takes place in the cytoplasm. This breaks down the pyruvic acid to carbon dioxide.\
It takes place both in plants and animals.
Which type of molecule is least able to cross the membrane without transporters?
Answer:
Only small hydrophobic molecules can enter the cell without specialized transporters. Water enters the cell through aquaporins and bulky polar or charged molecules need a channel or carrier protein transporter.
Explanation:
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Which observation led Mendel to the idea that parents passed only part of their genes to offspring?
○ A tall plant could transfer alleles for a short plant to the offspring.
○ A short plant always transferred alleles for a tall plant to the offspring.
○A short plant could transfer alleles for a tall plant to the offspring.
○ A tall plant always transferred the alleles for a short plant to the offspring.
what major event leads to the release of neurotransmitters in the synapse?
explain how transport across the plasma membrane is related to the homeostasis of the cell.
Transport across the plasma membrane is fundamental for maintaining an equilibrium state in the cell.
The cells need to carry out different metabolic processes such as reproduction, growth, differentiation, etc.Many of these processes require the presence of certain substances as well as concentration gradients to be performed.Moreover, the cells also need to eliminate waste products that otherwise would be toxic for them.In conclusion, transport across the plasma membrane is fundamental for maintaining an equilibrium state in the cell.
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(b) Table 2.1 shows some processes that occur in a kidney.
In Table 2.1, write the letter of the part shown in Fig. 2.1 where each process occurs.
You must put one letter in each box. You may use the same letter more than once.
Table 2.1
process
letter
filtration of blood
reabsorption of most of the solutes from the filtrate
water is absorbed by osmosis to determine the
concentration of urine
unfiltered blood returns to the renal vein
River water carries:
Sandy soil
Alluvial soil
Loamy
Black soil
Answer:
Alluvial soil.............,.........
Answer:
sand soil and pebbles
Explanation:
sand soil , pebbles
How Dogs inherit traits? Make sure to include the terms traits and selective breeding.
Answer:
When conceived, a dog receives two copies of DNA—one from the father and one from the mother. Which pieces of DNA a dog inherits from each parent is completely random. Within each strand of DNA are genes. And these genes determine traits such as coat color, ear type, tail style and more
Researchers have identified and sequenced the genes encoding proteins associated with nuclear pores in both yeast and vertebrates. They have used these data to determine the amino acid sequences of these proteins and have applied molecular modeling techniques to predict the three-dimensional structures of the proteins. All contain nearly identical folding regions that may serve to hold lipid membranes in sharp curves. Because this finding has been demonstrated in both yeast and vertebrates (representing organisms that diverged long ago in evolutionary history), it provides evidence of a possible mechanism for the evolution of a subcellular structure. Which subcellular structure is this
Answer:
Endomembrane system
Explanation: