Answer:
b
Explanation:
Which of the following tools is the best for measuring 100mL of water
Answer:
there should be some options...right?
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
Beakers and Flasks.
Graduated Cylinders.
Burets.
Pipets.
What happens to the oxygen
that is formed when water molecules
are split during photolysis
Answer:
Since photolysis is the splitting of molecules by light, the oxygen that is formed mostly supplies the oxygen in our atmosphere.
what hormonal signal is important in the metamorphosis of amphibians?
Answer:
Thyroid hormone (TH) is the most important hormone in frog metamorphosis, a developmental process which will not occur in the absence of TH but can be induced precociously by exogenous TH.
part of the uterus which allows the females eggs move through the fallopian tubes is called ?
Answer: Your fimbriae are finger-like projections at the ends of each of your fallopian tubes. Each month, they sweep a newly released egg from your ovaries into your fallopian tubes.
Explanation: Hope this helps!
Answer:
fimbriae
Explanation:
The fimbriae are finger-like projections at the end of the fallopian tubes that help to "catch" the egg as it is released from the ovary and guide it into the fallopian tube where fertilization may occur.
ALLEN
Which of the following describes how both of these cellular division processes maintain genetic continuity?
А.Both processes involve the replication and division of identical genetic material.
B. Both processes creates cells with half the genetic material of the parent cells.
C. Both process involve the recombination and division of new genetic material.
D. Both processes create cells with twice the genetic material of the parent cells.
Answer: Both processes involve the replication and division of identical genetic material
Explanation:
During S phase interphase DNA is replicated and it is replicated as an exact copy
When a single cell divides into two cells through mitosis, genetic continuity occurs. One cell divides into two during the process of mitosis, and each of the two progeny cells has the same amount of DNA as the parent cell.
What is genetic continuity?The fact that when a cell divides, the resulting two daughter cells have the same number and type of genes as the original cell is referred to as genetic continuity. It also describes how when two sexually reproducing organisms mate, their offspring have the same number of genes as the parents. Nuclear division results in daughter cells with identical sets of chromosomes. Mitosis ensures the genetic continuity of the ancestral cells in the body's daughter cells. It consists of one fully equational division followed by a DNA synthetic phase. Because it creates a perfect copy of DNA for new cells, DNA replication helps to maintain species genetic continuity.To learn more about Genetic continuity refer to:
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Without helicase, predict what would happen during DNA replication
Answer:
Should be D since what the helicase does is unwind the dna and seperate it into the 2 strands
Explanation:
What is your observation in three bean seed experiment?
The observation which we get from the three bean seed experiment is that for germination to take place, oxygen, water and temperature are necessary in equal proportion.
The purpose of this study is to show that seeds require equal amounts of oxygen, water, and temperature.
A glass slide, a beaker, a thread, and bean seeds make up the apparatus.
Use a glass slide to bind three ripe bean seeds in three distinct places. Place the slide in the water-filled beaker with the top seed above the water, the middle seed at water level, and the third seed submerged in the water.
Observation: Because the top seed receives oxygen but not water, it does not germinate. As it receives both oxygen and water, the center seed begins to sprout. The seeds at the bottom do not germinate, but they do display the appearance of a little radical as a result of a small amount of dissolved oxygen in the water.
Therefore, a seed requires water, oxygen and temperature in equal proportion.
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Water travels from the roots of a plant to its stems and leaves through__________cells.
Answer:
xylem
Explanation:
8. How are animal and plant cells different?
Explanation:
a plant cell contains a large singular vacuole that is used for storage of water and nutrients. it also helps maintain the shape of the cell. in contrast animal cells have many smaller vacuoles, which also are used for storage of water and nutrients. surrounds the cell membrane.
i need help with this ASAP
Answer:
i would love to help you, but all of the answers are on the map...
Explanation:
:)
Assuming these are carbon dioxide molecules, which way do you think the molecules will move and why?
A. Out of the cell. They want to move from high to low concentration (DOWN the concentration gradient)
B. Into the cell. They want to move from low to high concentration (UP the concentration gradient).
Answer:
A. Out of the cell. They want to move from high to low concentration (DOWN the concentration gradient)
Explanation:
Although the cuticle provides important protection from excessive water loss, leaves cannot be impervious because they must also allow carbon dioxide in (to be used in photosynthesis), and oxygen out. These gases move into and out of the leaf through openings on the underside called stomata (Figure 3b).
Answer:
A. Out of the cell. They want to move from high to low concentration (DOWN the concentration gradient)
Explanation:
The option (A) is the correct answer. This statement is the required answer.
True or false
An object will accelerate in free fall because the only force acting on it is gravity.
Describe the type of movement as either facilitated diffusion, osmosis, or diffusion.
Answer:
1. Diffusion
2. Osmosis
3. Diffusion
4. Facilitated Diffusion
5. Osmosis
6. Diffusion
Explanation:
Facilitated Diffusion- Move molecules across the cell membrane in a passive transportation with membrane protein.
Osmosis- Move water molecules from high concentration to low concentration.
Diffusion- Evenly spread molecules from high concentration to low concentration.
1. Gases move across the room with ease without energy.
2. Water enter skin cells allowing cells to grow and wrinkle without energy.
3. Gases move with ease without energy.
4. Glucose requires energy to transfer.
5. Water leaves throat when concentration outside of throat is less that that inside the trough so water moves outwards.
6. Oxygen is uses passive diffusion does not require energy and will with ease move in and through a cell.
help me i will give you all 30 point
If a DNA strand consisted of 30% T, what percent A would it have?
If a DNA strand consisted of 30% T, what percent G would it have?
If a DNA strand consisted of 10% G, what percent T would it have?
If a DNA strand consisted of 15% A, what percent G would it have?
Why is DNA important in determining the uniqueness of an organism?
Answer:
30 Adenine
30 Thymine
20 Cystosine
20 Guanine
Explanation:
I HOPE THIS HELPS
what was the main reason for the observed change the total arterial oxygen content?
The main reason for the observed change in total arterial oxygen content is often due to variations in hemoglobin levels, oxygen saturation, or partial pressure of oxygen in the blood. These factors can be influenced by factors such as physical activity, altitude, or medical conditions that impact oxygen delivery or utilization.
If the decrease in PaO2 is the cause of the change in total arterial oxygen content, it may be a sign of respiratory problems or a reduction in the oxygen supply in the environment. Conditions like hypoventilation, lung illnesses, or high-altitude situations can cause this.
Alternately, if the change is brought on by a drop in haemoglobin concentration or oxygen saturation, it may indicate problems with hemoglobin's ability to carry or bind oxygen. This could happen if you have anaemia, a haemorrhage, or carbon monoxide poisoning.
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Using the information from the table, what is the surface-area-to-volume ratio for the spherical cell that removes waste via diffusion most efficiently?.
The cuboidal cell of cell A's surface-area to volume ratio, which eliminates waste via diffusion most effectively, is 24: 8.
Volume grows more quickly than surface area as cell size increases because volume is in the form of a cube while surface area is present as a square. If the surface area is less and the volume is large then diffusion rate via the cell is slow and inefficient. Therefore, we can draw the conclusion that diffusion is more effective when there is a bigger surface area than volume.
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the menstrual cycle starts on the 1st of a woman's period what hormone is produced during the first half of the month?
The hormone produced during the first half of the month is the estradiol.
Heather is doing an acid-base reaction. She has 25.00 mL of hydrochloric acid of unknown concentration in a flask. She wants to add a basic solution to the acid drop by drop, until all the acid has reacted.
Answer:
lwlwlelpepwpspsppa
Explanation:
ookeieorooroekrkrkrklrkdkdodkekiekeieie
what changes occur in height, weight, and body composition with ageing, what accounts for these changes and what affect do these changes have on oxygen uptake??
Age-related changes in body composition are largely due to a decrease in muscle mass and an increase in body fat. This process, known as sarcopenia and adiposity, respectively, can be exacerbated by factors such as physical inactivity, poor nutrition, and hormonal changes.
As people age, they tend to lose height and muscle mass while gaining fat. These changes in body composition can lead to a decrease in oxygen uptake, which may contribute to a decline in overall health and physical function.
As a result, older adults often experience a decrease in height, as well as a decrease in muscle mass and bone density, which can lead to an increased risk of falls and fractures. In addition, the accumulation of body fat can lead to a variety of health problems, including cardiovascular disease, type 2 diabetes, and certain types of cancer.
These changes in body composition can also have a negative impact on oxygen uptake, or the amount of oxygen that the body is able to use during exercise. This is because muscle tissue is more metabolically active than fat tissue, meaning that it requires more oxygen to function properly. As people age and lose muscle mass, their oxygen uptake capacity decreases, making it harder for them to perform physical tasks and maintain overall health. To combat these effects, it is important for older adults to engage in regular physical activity, consume a balanced diet, and consider supplementing with certain nutrients, such as protein and vitamin D, which can help support muscle and bone health.
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What device captures sound waves and transforms them into mechanical energy to make recordings?
a. Telephone
b. Phonograph
c. Harpsichord
d. Piano
Answer:
Phonograph
Explanation:
A phonograph, in its later forms also called a gramophone or since the 1940s called a record player, is a device for the mechanical recording and reproduction of sound
write an essay about how sunflower seeds can be used to create biofuel and the process.
Sunflower seeds can be used to create biofuel through a process called transesterification, which converts the seeds' oil content into biodiesel.
The process of creating biofuel from sunflower seeds involves several steps. First, the sunflower seeds are harvested and cleaned to remove any debris. Next, the seeds are mechanically pressed or chemically extracted to obtain sunflower oil. The oil is then refined to remove impurities and excess water content.
The refined sunflower oil undergoes a process called transesterification. In this step, the oil is mixed with an alcohol, typically methanol, and a catalyst, such as potassium or sodium hydroxide. The mixture is then heated and stirred to encourage the reaction. During the reaction, the triglycerides in the oil break down into glycerol and fatty acid methyl esters (FAME), which is the biodiesel. The biodiesel is then separated from the glycerol and any remaining alcohol and catalyst through a series of washing and drying steps. Finally, the biodiesel is tested for quality and can be blended with conventional diesel fuel or used as a standalone fuel source.
In conclusion, sunflower seeds can be used to create biofuel through a process involving extraction, refining, transesterification, and purification. This renewable energy source has the potential to reduce our reliance on fossil fuels and contribute to a more sustainable future.
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Paano naaapektuhan ng bawat katangian ang isat isa?
Answer:
naaapektuhan ang bawaf katangian ng isat isa dahil sa maaaring ito ay nakakaapekto ng sobra
Explanation:
sana makatulong
Is a Heterotroph a araebacteria or a eubacteria
How do fish stay alive when a lake or ocean freezes?
O The frozen ice sheets float on top of the water, providing insulation.
O The cohesive properties of water prevent the lake from freezing.
O The water molecules have adhesive properties.
O The ice sinks, giving the fish a way to escape the water.
The frozen ice sheets float on top of the water, providing insulation.
do fish stay alive when a lake or ocean freezes
How do fish endure in ice-covered water?Water does not freeze under the higher, ice-covered layer; it stays in its liquid state. In addition, oxygen is imprisoned beneath the ice. Fish and other aquatic creatures can thus dwell peacefully in the frozen lakes and ponds.
Only shallow water bodies will solidify because the ice acts as an insulator, delaying the cooling of the water below. Because there is constantly access to liquid water, even when it is quite cold, higher creatures like fish can thrive.
Fish in this resting condition move very little, their hearts slow down, and their requirements for food and oxygen diminish.
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Which of these are long strands of DNA?
A. Chromosomes
B. Fossils
C. Genes
D. Mutations
Answer:
Chromosomes
Explanation:
18. l
Describe an
example of when land reclamation may be
needed on a beach.
****
Land reclamation on a beach may be necessary for various reasons, including to combat erosion, create new land for development, or protect coastal areas from flooding. An example of when land reclamation may be needed on a beach is when the shoreline is eroding at a rapid pace, threatening the homes and infrastructure built along the coast.
In such a scenario, the beach can be reinforced with various methods such as building a seawall, planting vegetation, or placing large rocks along the shoreline. However, if the erosion continues to worsen, more drastic measures such as land reclamation may be necessary.
Land reclamation involves adding sand, sediment, or other materials to the beach to widen the shore and create a buffer zone between the water and infrastructure. This can involve pumping sand from offshore or trucking in sand from other locations. By creating a wider beach, the force of waves and storms can be absorbed, reducing the impact of erosion on the shoreline.
Overall, land reclamation on a beach is a technique used to protect coastal areas and their infrastructure from the damaging effects of erosion and rising sea levels.
Which statement is true of reproduction that
involves two parents?
O A. Offspring are exact copies of the parent.
O B. Each parent provides the offspring with
genetic material.
O C. Single cells reproduce in this way.
O D. Bacteria reproduce in this way.
PLS HELP MEZ if your good at SCIENCE iLL MARK Brainliest
Answer:
NY and PA
Explanation:
Its pretty self explanetory
What do cells have in common
Answer:
All cells have these four parts in common: a plasma membrane, cytoplasm, ribosomes, and DNA.
Explanation:
Answer:
All cells share four common components:
a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment
cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found
DNA, the genetic material of the cell
ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.
hi guys i need the answer to #19
If Spike has 36 chromosomes, we can infer that he inherited half of his chromosomes from his mother and half from his father.
How to explain the informationHumans typically have 23 pairs of chromosomes, with one set coming from the mother (maternal chromosomes) and the other set from the father (paternal chromosomes). So, in Spike's case, we would expect him to have received 18 chromosomes from his mother and 18 chromosomes from his father.
The process of inheriting chromosomes from parents is related to heredity. Chromosomes contain DNA, which carries genetic information. When a baby is conceived, they receive half of their chromosomes from their mother's egg and half from their father's sperm. This genetic material contains instructions for various traits, such as eye color, height, and susceptibility to certain diseases. The combination of chromosomes inherited from both parents contributes to the unique genetic makeup of an individual, determining their physical characteristics and predispositions to certain traits or conditions.
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