The answer should be:
Placenta
If you'd like to know why:
The gestational period of kangaroos and other marsupials is not very long. Although they do give birth to live young, they give birth early. The off-spring is essentially just an embryo when the mother gives birth and it just latches on the nipples and develops for weeks to months.
Note: Its not really that they do not have a placenta, but theirs are just very different. Placentas in other mammals provides nutrients and blood supply to the fetus internally, but in marsupials, the nutrients provided in the womb comes from the yolk of the ovum, which serves as the placenta.
the answer is placenta.
in 5 to 7 sentences why do cells need to go through asexual reproduction
What is the function of DNA polymerase 3 in DNA replication
Final answer:
DNA polymerase III is essential for adding nucleotides to the growing DNA strand during replication and also has proofreading abilities to correct errors, ensuring the accuracy and fidelity of the DNA synthesis process.
Explanation:
The function of DNA polymerase III (DNA pol III) in DNA replication is critical to the process of synthesizing a new DNA strand. DNA pol III adds nucleotides that are complementary to the template strand, ensuring the accurate duplication of the DNA molecule. This enzyme can only extend in the 5' to 3' direction, necessitating the use of primers to initiate the replication process.
During DNA replication, DNA polymerase III also displays proofreading abilities to correct any base-pairing errors, enhancing the fidelity of DNA synthesis. Overall, DNA pol III is responsible for the bulk of DNA synthesis during cell replication, working at impressive speeds and with high accuracy to replicate the organism's genetic material.
Furthermore, elongation during DNA replication happens at a rate of about 1000 nucleotides per second, with DNA polymerase III carrying out this meticulous process and ensuring that the leading and lagging strands are synthesized accordingly.
How did Watson and Crick's approach to figuring out the DNA molecular structure differ from Rosalind Franklin
Watson and Crick's approach to discovering the molecular structure of DNA, which differs from Rosalind Franklin's search for the experimental part of DNA.
Watson and CrickWatson and Crick had a definite scientific goal: to try to decipher the structure of DNA. For this, they seek empirical information at a seminar at King's College (held on November 21, 1951), in which Franklin presented some results of the investigation he was doing with his assistant Raymond Gosling.
FranklinFranklin had already made another fundamental discovery, which in a way explained why other researchers before him had not achieved better results with X-ray diffraction for DNA. Franklin discovered that DNA came in two forms: a "dry" form, which he called form A, and a more hydrated form, which he called form B.
With this information, we can conclude that Watson and Crick's approach to discovering the molecular structure of DNA was to discover the helical shape of DNA, which differs from Rosalind Franklin's search for the experimental part of DNA.
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help please. Grace wants to find out how many kinds of organisms live in tides pools on a certain Rocky shore. which of the following would be the best investigation for grace conduct?
A. survey
B. Field study
C.experiment
D.Laboratory study
B, Field study. This is because she wants to find a number in a certain location that cannot be replicated. She needs to observe the amount of species so an Experiment does not work. A survey is a questionnaire and wouldn't help because she needs to see it herself. A lab study wouldn't replicate the rocky shores she needs to investigate.
Grace should perform a field study to observe and record the different organisms living in natural tide pools. This observational study is the best method for understanding the biodiversity of such ecosystems without altering their natural state, option B is correct.
Grace is interested in finding out how many kinds of organisms live in tide pools on a certain rocky shore. Conducting a field study would be the most appropriate method for her to investigate the biodiversity of tide pools. This method involves observing organisms in their natural environment, which allows for real-world interactions and behaviors to be recorded and is best suited for studying ecosystems.
Option B, a field study, provides an observational study approach that would enable Grace to gather data on different organisms directly from the site. A survey could also be utilized as part of the field study to systematically record the presence and variety of organisms. This hands-on approach is more effective for ecological research than controlled experiments or laboratory studies because it does not manipulate variables but observes them as they occur naturally.
Other methods such as experiments or lab studies are less suitable because they often involve controlled conditions that do not accurately reflect the complex and dynamic interactions found in a tide pool ecosystem.
true or false as a wave approaches the shore friction causes the wavelength to grow longer?
enzymes are produced by groups of cells and tissues called
When a person steps from a shower on a cold morning, why does the tile floor seem so much more colder than the air.
Why is photosynthesis considered a
bridge between the nonliving and living
worlds?
Answer:
The process of photosynthesis is considered as a bridge between the non living and living world because the substrate which is used in this process is non living and the plants that convert this into useful product is a living thing.
The carbohydrates that is produced by the plants body is used by the plants and animals which is also living thing.
The oxygen which is produced as a by-product is also used by the plant and animals and they are also living components of life.
Hence, it acts as a bridge between the living and non living components of life.
What do glaciers leave behind when they retreat
The temperature at 6:00 a.m. was –12°F. By 3:00 p.m. the temperature had risen 21°F.
What was the temperature at 3:00 p.m.?
Answer:
I believe the answer is 9°F
Explanation:
I hope this helps you!
identify a scenario in which a model could be used in a scientific investigation o better understand a concept
In this equation for photosynthesis, where does the first product come from and what happens to it in the photosynthetic process?
6CO2 + 6H2O → C6H12O6 + 6O2
Glucose is formed right after the Calvin cycle.
Carbon dioxide comes from the air and is broken down in the Calvin cycle.
Oxygen is released as a gas after water is split.
Water is split to drive NADP to NADPH conversion, which is formed in the Calvin cycle.
Answer:
The correct answer would be Carbon dioxide comes from the air and is broken down in the Calvin cycle.
Photosynthesis can be divided into two steps namely light-dependent and light-independent reactions.
In light-dependent reaction, light energy of the sun is converted into chemical energy (ATP and NADPH). Photolysis of water takes place in this process which releases oxygen as the byproduct.
In light-independent reaction (also called as Calvin cycle), carbon-dioxide obtained from air is broken down and rearrange to fix carbon in the form of glucose. The reaction is catalyzed by the enzyme RuBisCO.
Answer:
b
Explanation:
the process of osmosis would explain the net movement of water into a cell if the percentage of
Osmosis involves the movement of water from a region of lower concentration to a region of higher concentration across a selectively permeable membrane.
The net movement of water into a cell would occur if the percentage of water was 90% inside the cell and 95% outside the cell.
The flow of water is in response to differences in solute concentration on either across a selectively permeable membrane. A net movement is then achieved if sufficient water has moved to equalize the solute concentration.Learn more about osmosis: https://brainly.com/question/19164620
True or false: oxygen passes through the walls of an artery into organs.
potential energy formally called the energy of
Final answer:
Potential energy is the energy stored in an object or system due to its position, composition, or condition, capable of being converted into kinetic energy. It largely stems from electrical and magnetic forces at the atomic level and underlies the principle of energy conservation in physics.
Explanation:
Potential energy is fundamentally the energy associated with the position, composition, or condition of a particle or system of particles. Distinguished from kinetic energy, which is the energy of motion, potential energy is the energy that is stored within an object or system. This stored energy can be converted into kinetic energy, thereby making it a crucial concept in understanding how energy is conserved and transformed within physical systems.
At the atomic level, potential energy often arises from the electrical and magnetic forces between atoms. These forces generate electrical and magnetic potential energies, which are integral in forming the structural and functional bases of matter. Every form of energy encountered in daily life, such as chemical energy in a battery or gravitational energy of an object placed at a height, can be traced back to potential energy at the atomic level.
Potential energy plays a pivotal role in various physical phenomena and technological applications. It is a key concept in mechanics, electromagnetism, and quantum physics, influencing how objects interact within their environments. The transformation of potential energy into kinetic energy and vice versa underpins the principles of energy conservation, which is a fundamental law of physics. Understanding this transformation is essential in predicting the motion of objects and the outcomes of physical processes.
Who named the Lily Pad and what does it mean?
Who named the cat and what does it mean?
Nymphaeaceae /ˌnɪmfiːˈeɪsiː/ is a family of flowering plants, commonly called water lilies. They live as rhizomatous aquatic herbs in temperate and tropical climates around the world. The family contains five genera with about 70 known species.[2] Water lilies are rooted in soil in bodies of water, with leaves and flowers floating on or emergent from the surface. Leaves are round, with a radial notch in Nymphaea and Nuphar, but fully circular in Victoria and Euryale. It is the national flower of Bangladesh.[citation needed]
Water lilies are a well studied clade of plants because their large flowers with multiple unspecialized parts were initially considered to represent the floral pattern of the earliest flowering plants, and later genetic studies confirmed their evolutionary position as basal angiosperms. Analyses of floral morphology and molecular characteristics and comparisons with a sister taxon, the family Cabombaceae, indicate, however, that the flowers of extant water lilies with the most floral parts are more derived than the genera with fewer floral parts.[clarification needed] Genera with more floral parts, Nuphar, Nymphaea, Victoria, have a beetle pollination syndrome, while genera with fewer parts are pollinated by flies or bees, or are self- or wind-pollinated.[3] Thus, the large number of relatively unspecialized floral organs in theNymphaeaceae is not an ancestral condition for the clade.
hope it helps sorry I do not know the cat one
Final answer:
The Lily Pad got its name from its round, flat leaves that resemble a pad or cushion. The word 'cat' has its origins in Old English and refers to the domesticated feline species.
Explanation:
The Lily Pad: The name 'lily pad' originated from the physical appearance of these aquatic plants. Their round, flat leaves resemble the shape of a pad or cushion, which is why they are called 'lily pads'. These plants are typically found in still or slow-moving water, such as ponds or lakes.
The Cat: The name 'cat' comes from the Old English word 'catt', which dates back to the late 8th century. It is believed to be derived from the Late Latin word 'cattus' and the African wildcat 'felis lybica'. 'Cat' refers to the domesticated feline species, commonly kept as pets.
how can i use prokaryote in a sentence with saying the deffenition
Crustal plates scrape and slide past each other along faults at their boundaries. For example, the Pacific and North American Plates slide past each other along the San Andreas Fault in northern California.
What natural hazard usually results when crustal plates scrape and slide past one another?
A.
hurricanes
B.
tsunamis
C.
tornadoes
D.
earthquakes
Answer:
Earthquaques
Explanation:
Crustal plates are extremely heavy and thus impose tremendous pressure on adjacent plates, however they don't immediately slide past each other. Rather, tension is built up as time progresses and the pressure continues, until it is released and the plates slide rather abruptly to find their new position. The process starts over again because the plates do not stop moving. The internal heat in the core of the planet fuels their movement.
1. Do the location of landforms (mountains, trenches, and volcanoes), earthquakes, and mineral deposits have anything in common?
A. No, their placement is scattered all over the globe
B. Yes, most appear to occur on the edges of plates
2. What is the ring of fire (besides a song by Jonny Cash)?
A. An area located in the Atlantic Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits
B. An area located in the Pacific Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits
C. An area located in the Indian Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits
D. An area located in the Arctic Ocean that is home to some of the world’s most active volcanoes, deepest ocean trenches, highest mountains, and richest mineral deposits
3. How does a trench occur?
A. When one plate is pushed underneath another plate
B.When one plate gets too thin and collapses under another plate
C. When a hot spot occurs at that location causing the lithosphere to weaken
D. When a transform boundary ends
4. What type of convergent boundaries make mountain ranges?
A. Oceanic – Oceanic
B. Continental – Continental
C. Continental – Oceanic
5. What type of boundaries make rift zones?
A. Convergent
B. Divergent
C. Transform
How are lakes and ponds similar?
What characteristic describes both amoebas and bacteria
Both amoebas and bacteria are single-celled, microscopic organisms that lack membrane-bound organelles and have a single circular chromosome of DNA. Amoebas are characterized by their pseudopodia used for locomotion and feeding, while bacteria can have flagella for movement.
One characteristic that describes both amoebas and bacteria is that they are both single-celled, microscopic organisms. Amoebas, or Amoebozoa, are eukaryotic organisms characterized by their ability to form pseudopodia, which are temporary, limb-like extensions of the cytoplasm that help in locomotion and feeding.
Bacteria, on the other hand, are prokaryotic organisms that also have a variety of shapes and can move using structures such as flagella. Both organisms lack membrane-bound organelles and have a single circular chromosome of DNA, although amoebas as eukaryotes do have a defined nucleus while bacteria as prokaryotes do not.
Amoebozoa can exist in freshwater, marine environments, and soil, and they utilize their pseudopodia for movement similarly to the way some other protists use organelle movements to navigate or distribute nutrients.
Amoebas, especially Dictyostelium discoideum, exhibit fascinating life cycles that include both solitary and aggregated social behaviors in response to environmental conditions.
The amoebas can even form multicellular 'slugs' during the social cycle phases of their life, representing their capacity for complex interactions and adaptability. Bacteria also display a variety of behaviors, including social interactions and complex colonies known as biofilms.
Suppose you are investigating how the diet of hamsters affects how much they run on their hamster wheel. In order to control the experiment, which of these should you do?
A.
Change only the diet of each hamster.
B.
Give all the hamsters the exact same diet.
C.
Only allow some hamsters to run on the wheel.
D.
Compare the behavior of hamsters and gerbils.
Answer:
A. Change only the diet of each hamster.
Explanation:
If you want to know the relationship between the hamsters' feed and the way they run in the wheel of their cages, you should give each hamster a different feed and evaluate the way they behave in the wheel, the speed they run, the time that run, among other factors.
You must offer a different food for each hamster to be able to compare the results, if you give the same food to all hamsters the results can be the same, so you will not be able to compare which food showed the best results and which showed the worst results.
how you can tell if the couple who is married had children?
The presence of children in a married couple's life can be indicated by societal norms and changes in the couple's lives. In ancient Rome, not having children could lead to divorce, whereas in modern society, stress and changes after the birth of the first child can affect the marriage. In the United States, the presence of children is often considered a key aspect of a family.
Explanation:The presence of children in a married couple's life can be determined through various factors and societal norms. For example, in ancient Rome, having children was considered important for being a good citizen. If a couple was unable to have children, they would sometimes have others step in to father the child for them. In modern society, the presence of children can be indicated by the stress and changes that occur after the birth of the first child, as well as by the decline in marital satisfaction over time. Additionally, in the United States, the presence of children is often seen as a key indicator of a family.
Paralysis and the Central Nervous System In this assignment, you will prepare a presentation about paralysis and its relation to the central nervous system. Your Report will answer questions such as, "What diseases cause paralysis?" "How does the disease damage the central nervous system?" and "what treatments can help reverse paralysis?" The presentation should be seven slides in length. The slides should include the following things: 1. Title 2. Introduction- an overview of the presentation 3. Causes- an overview of 1 to 2 treatments for paralysis 4. Causes and the nervous system- describes how the nervous system is affected, using scientific terms 5. Treatments- an overview of 1 to 2 treatments for paralysis 6. Effectiveness of treatments- describes how the treatments affect the parts of the nervous system to reverse paralysis 7. Conclusion Remember to make a list (bulleted, numbered, etc) on each slide. The slides should feature The highlights of the main idea. The bullet points should be short phrases (at most, one sentence) that highlight some key points.
1. Introduction: Paralysis is when your body looses its ability to move properly. In this presentation I will teach you about paralysis and the properties that make such an interesting disease.
2. What diseases cause paralysis?: Paralysis is usually caused by damage in the nervous system or spinal cord. Another thing that can cause paralysis are stroke, poliomyelitis, cerebral palsy, Parkinson's disease, and many more. These diseases are very harmful to the human body.
3. How does the disease damage the central nervous system?: Paralysis happens when communication between the brain and spinal cord is blocked. Usually by blood clots. When this happens a stroke can occur. But if it damages your spinal cord you could loose all feeling on the lower side of your body.
4. What treatments can help reverse paralysis?: So far there are no treatments that can fully reverse paralysis, but there are rehabilitation treatments. such as Physical therapy and Occupational therapy.
5. What do these treatments do?: Physical Therapy use massages, heat and exercise as a way to stimulate nerves and muscles. Sometimes this can help them get feeling back. Occupational Therapy helps people learn to do every day things again.
6. Conclusion: While I was reading about how paralysis works it occurred to me that so many people suffer not being able to move. I have you have learned a lot from my presentation.
I hope this help:D
What machine is used to record brain wave pattern?
which system is responsible for the transportation of nutrients throughout the system? A digestive system B endocrine system C circulatory system D respiratory system
Answer:
C. Circulatory system
Explanation:
I had the K12 test
How does Rosalind franklin deal with Watson and crick taking the credit for the structure of DNA
Rosalind Franklin, through her work with X-ray diffraction images, significantly contributed to the understanding of DNA structure. Watson and Crick used her data in their discovery, receiving a Nobel Prize which Franklin, already deceased, did not share.
Explanation:British chemist Rosalind Franklin made significant contributions to the discovery of the structure of DNA. Her work in measuring X-ray diffraction images of DNA provided crucial information, specifically the concept of 'A' and 'B' forms of DNA. However, the recognition she deserved was largely taken by James Watson and Francis Crick, who used her data to confirm that DNA forms a double helix.
James Watson, Francis Crick, and Maurice Wilkins were awarded the Nobel Prize in Physiology or Medicine in 1962 for this discovery. Unfortunately, Rosalind Franklin had died by then, and Nobel prizes were not awarded posthumously. Despite this, her contribution to the discovery remains invaluable and fundamental to our understanding of DNA structure.
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What happens when you inhale?
Answer quickly please!
what conditions are required for a hurricane to form
- The storm must be developing over warm water. The water must be at least 80 degrees Fahrenheit. The warm water provides the energy for increased evaporation of water from the ocean surface.
- The warm water must be at least 200 feet deep
- There should be very little wind shear in the area. Wind shear occurs when there is a difference in wind speed and direction over a short distance. Strong wind shear can stop the formation of hurricane eye walls.
The conditions are required for a hurricane to form are:
The storm must be developing over warm water. The water must be at least 80 degrees Fahrenheit. The warm water provides the energy for increased evaporation of water from the ocean surface. The warm water must be at least 200 feet deep There should be very little wind shear in the area. What is hurricane watch and conditions?Hurricane Watch means hurricane conditions are expected in a specified area. As defined by National Oceanic and Atmospheric Administration (NOAA), it means that hurricane conditions (sustained winds of 74 mph or greater) are possible within your area. WHILE,
Hurricane warnings mean hurricane conditions are expected in an area.
Thus, this could be the answer.
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Describe how the plant absorbs ingredients and gets rid of its waste