What can a paleontologist learn from fossils
You could identify a sedimentary rock as a conglomerate because of which of the following?
A. the clastic nature of the rock
B. the amount of organic material in it
C. the calcium sulfate content of the rock
D. the small pebbles and rocks embedded in it
Proteins are mostly absorbed as A. fatty acids. B. disaccharides. C. amino acids.
What name is given to the process when a cell divides to produce Gametes??
What is the process of osmosis?
Osmosis is a special case of diffusion. Water, like other substances, moves from an area of higher concentration to one of lower concentration. ... In this example, the solute cannot diffuse through the membrane, but the water can. Water has a concentration gradient in this system.
a chemist is study the effects of minerals on plant growth. She knows that phosphorus stimulates pant growth. She decides to test the effects of various phosphorus concentration on plants every 5 days over a 20 day period what is the independent variable?
Which factor does not influence stream velocity?
A. stream discharge
B. stream gradient
C. stream elevation
D. channel size
Answer: C. Stream elevation
Stream velocity is the speed of water in a stream. It can be measured in meters per second or feet per second. Stream velocity is highest in the mid stream and lowest along the bottom of the stream. Stream discharge depicts the flow of water from it's source of origin. Stream gradient indicates difference in pressure levels between different water layers. Channel size is the width of water surface acquired by the water body. Stream elevation is the rise in the superficial layer of water. Stream discharge, stream gradient and channel size all influence the stream velocity as they are related to the flow of water. Stream elevation does not influence flow of water hence, does not influence stream velocity.
Answer:
answer is definitely stream elevation
What is the difference between integral and peripheral membrane proteins?
Which trait is determined by both genetics and the environment?
Answer:
intelligence
Explanation:
Both continuous and discontinuous variations are manifestations of the phenotype. They are variations that directly affect the individual's relationship with their environment.
An individual can inherit the genes to be tall, but if he suffers from malnutrition, he will not reach the height he would have reached if he had normally nourished.
A person will usually gain weight if he eats a lot and lose weight if he is on a diet, but another person can eat as much as the first and can stay thin because of his different constitution, the result of inheritance. For example, if an individual becomes ill or not, it seems that it could be attributed exclusively to his exposure to the agents of the disease, that is, to a purely environmental effect, and instead it has been shown that it is possible to inherit the predisposition or resistance For an infectious disease. If an individual has inherited the predisposition to an infectious disease, but is not exposed to infection, do not get sick. Just as the environment influences the phenotype, it has an action on individuals.
The environment has a significant influence on the development of plants. A fertilized soil and other conditions of light and temperature will accelerate the development of plants. A species of plant that grows in a valley will have, for example, wider leaves and longer stems than the same species they offer on the mountain. Similar experiments in man are possible, that is, to demonstrate whether our intelligence is mainly due to the genes we inherit or to environmental conditions.
There are cases in which for various reasons univiteline twins have been separated and raised in different environments. It has been proven that their genetic identity remains, but the development of their personality, culture and education that has been influenced by the different environment in which they have grown. But there are other characters on which the medium, whether internal or external, exerts a non-negligible influence. The pigmentation of the skin, for example, will be more or less dark in proportion to the intensity of the solar rays received. Height is another example that depends not only on hereditary factors but also on the type of food and the period of growth.
When sodium enters the neuron via chemically gated sodium channels, the membrane will depolarize. therefore, the membrane potential will become more?
How are nutrients transferred to the fetus from the maternal blood?
Two common metamorphic rocks that typically lack foliation are ________ and ________.
Two common metamorphic rocks that typically lack foliation are Phyllite and schist.
What are metamorphic rocks?
Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. The original rock is subjected to temperatures greater than 150 to 200 °C and, often, elevated pressure of 100 megapascals or more, causing profound physical or chemical changes.
Moreover, metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Hence, metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock.
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Which one has a cell membrane prokaryotic or eukaryotic cells?
Both prokaryotic and eukaryotic cells have a cell membrane. The cell membrane acts as a barrier that separates the cell's interior from its environment. It is a crucial component in maintaining the cell's integrity and function.
Both prokaryotic and eukaryotic cells have a cell membrane. The cell membrane, also known as the plasma membrane, is a common component in all types of cells. It acts as an outer covering that separates the cell's interior from its surrounding environment.
Prokaryotic cells, which include bacteria and archaea, and eukaryotic cells, which include animals, plants, fungi, and protists, both have cell membranes. The cell membrane is essential for maintaining the cell's integrity and regulating what enters and exits the cell.
Cryogens and dry ice produce an effect on the skin similar to a rash true or false
A maternity nurse is using a humanistic approach when teaching a new mother about breast-feeding. what question should the nurse use when implementing this approach?
The question will be "What is it that you'd most like to learn about breast-feeding?"
Humanistic Theory of Learning is in contrast to the behaviorist thought of operant molding (which contends that all conduct is the aftereffect of the application of consequences) and the psychological clinician conviction that the finding knowledge or building meaning is vital to learning.
Final answer:
A maternity nurse using a humanistic approach could ask the new mother about her feelings regarding breastfeeding and the type of support she believes will help her succeed, thereby focusing on her holistic well-being.
Explanation:
When implementing a humanistic approach to teaching a new mother about breastfeeding, a maternity nurse could ask, “How do you feel about breastfeeding and what support do you think will help you to successfully breastfeed your baby?” This question focuses on the mother's feelings and recognizes her individual needs, thereby facilitating a supportive and empowering environment that is central to humanistic care.
This approach aligns with the principles of humanism, which emphasize the importance of personal growth, self-fulfillment, and the acknowledgment of the individual as a whole person, rather than just focusing on the physical process of breastfeeding. It also encourages the expression of concerns, which could lead to a more personalized and effective teaching plan, supporting both the psychological well-being of the mother and the physical health of the baby.
The existence of Pangea is supported by evidence that similar fossils appear on differen continents. How does this observation support the existence of Pangea?
1) It shows that fossils can be relocated.
2) It shows that organisms can migrate across oceans.
3) It shows that similar animals can develop in different climates.
4) It shows that the continents used to be closer together.
Answer:
D
Explanation:
It shows that the continents used to be closer together.
Help!!! Someone Can someone please help me with this virtual lab this has to be done by Monday 10•16•17 anything helps please
Which is most necessary for specialization among producers to take place?
Which situation occurs when drugs cross the placenta during pregnancy?
Babies may be born with a drug dependency.
Explain which aquatic environment are more likely to have winter ice
The water in freshwater ecosystems like lakes, ponds, creeks, and rivers are more likely to freeze over in winter because it doesn't contain salt. The salt dissolved in marine environments prevents the water from freezing.
Gorging oneself after a period of starvation and then purging the body through induced vomiting and further fasting is a major sign of:
What single feature is primarily responsible from the variation of climates in different parts of the world?
I need help with these questions. I've taken this test twice and so I'm leaving out the answers I already chose. These are the ones I've missed and don't know.
5. Which statement is true of both active transport and facilitated diffusion?
c. Both only occur in one direction
d. Both involve proteins in the cell membrane
7. Osmosis involves which of the following processes?
a. movement of water across a cell membrane
d. moment of water up a concentration gradient
10. The inner membrane of mitochondria consists of many folds. What is the purpose of this membrane?
a. Increase the surface area to allow more space for ATP synthesis
d. Decrease the surface area so substances can't diffuse in
These three I just don't remember what my answer was since it was on Friday I think.
11. Which of the following is true of eukaryotes but not of prokaryotes?
(a. They do not have membrane-bound organelles)
b. They are always single-celled
d. They must contain a nucleus
12. Semipermeable cell membranes are made of phospholipids that form a bilayer. What major benefit does this arrangement of the membrane provide to the cell?
a. The cell is able to easily change size and shape
b. Both surfaces of the membrane are nonnpermeable
(c. Both surfaces of the membrane can interact with water and other molecules)
13. When a Pacific sea horse's body loses water to its environment, which process is responsible?
a. active transport
b. osmosis
(c. endocytosis)
Thanks in advance
• Active transport and facilitated diffusion both involve cell membrane protein.
• Osmosis involves the movement of water toward the higher concentration
• Mitochondria inner membrane consist of many folds to increase the surface to allow more space for ATP synthesis.
• Prokaryotes do not contain a nucleus
• Semipermeable cell membranes are made of phospholipids that form a bilayer through this cell have greater level of structural support
• Pacific sea horse s body loses water to its environment through osmosis.
Further Explanation:
The cell membrane has an ability to control the flux of ions, amino acid, and gases, through a lipid bilayer.
The lipid bilayer is made up of phospholipids and these membranes have hydrophobic interior, a layer is selectively permeable and allow only small, non-polar molecule. large and polar molecule like glucose cant cross plasma membrane easily they require energy and carrier protein to transport.
Types of transport:
• Passive transport
• Active transport
In passive transport, movement of ions or small molecule according to their concentration gradient from higher concentration to lower concentration.
But large polar molecule or charged molecule example glucose,Na+ require carrier protein to transport charged molecule across the membrane, do not require ATP or energy to transport.
Osmosis is a process by which diffusion of water takes place through cell membrane. To maintain the structure and function of cell it is important to maintain equal concentration of solute across the cell membrane.
These are the type of solutions
• Isotonic solution:The solution in which the concentration of solute is equal to the concentration inside the cell
• Hypertonic soluuution: The solution in which the concentration of solute is higher than the concentration inside the cell
• Hypotonic solution: The solution in which the concentrationnn of solute is lower than the concentration inside the cell
In active transport, they require ATP as well as carrier protein to transport molecule across the plasma membrane, an example of active transport is a sodium-potassium pump.
Mitochondria is present mostly in eukaryotes and not present in single celled organelle like RBC which lack nucleus.
Function of mitochondria
• Power house of cell
• TCA cycle occur in this
• Regulates membrane potential
Mitochondria is made up of two membrane outer layer and inner layer, space between the two membranes called intermembrane space,space enclosed by inner membrane is called matrix, inner membrane consists many folds to expand the surface area for ATP synthesis.
Learn More:
1. Learn more about cell membrane https://brainly.com/question/5923583
2. Learn more about cell cycle https://brainly.com/question/1600165
3. Learn more about diffusion https://brainly.com/question/1386629
Answer: Details:
Grade: High School
Subject: Biology
Chapter: Cell membrane
Keywords:
Active transport, passive transport, facilitated transport, diffusion, mitochondria, cell membrane, osmosis, hypertonic solution,hypotonic solution,isotonic solution, osmosis, molecule, glucose.
Which type of connective tissue is inflamed in cases of periostitis?
Which of the hallucinogens has never been used as a medical anesthetic?
A patient has been diagnosed with osteoporosis and asks the nurse practitioner, "what is osteoporosis?" the nurse practitioner knows that osteoporosis can be defined as:
Osteoporosis is a condition characterized by the loss of bone density and deterioration of bone tissue. It increases the risk of fractures and weakens bones. Management may involve lifestyle changes and medication.
Explanation:Osteoporosis is a medical condition characterized by the loss of bone density and the deterioration of bone tissue. It is most commonly associated with aging, particularly in postmenopausal women. The condition can increase the risk of fractures and result in weakened bones.
Osteoporosis occurs when the body loses more bone mass than it can replace. This leads to a decrease in bone density, making the bones more susceptible to fractures. Factors such as hormonal imbalances, lack of physical activity, and an inadequate intake of calcium and vitamin D can contribute to the development of osteoporosis.
To manage and prevent osteoporosis, healthcare professionals may recommend lifestyle changes, including regular exercise, a healthy diet, and the use of medications such as bisphosphonates or hormone therapy to slow down bone loss or promote bone formation.
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Which of the following is NOT part of aerobic cellular respiration?
A) electron transport
B) glycolysis
C) Calvin Cycle
D) Krebs Cycle
Randy is a nursing student. he has been asked to intravenously inject his patient with 10ml of an isotonic preparation. mistakenly, he injects his patient with 10ml of pure water. what is likely to happen to the red blood cells near the site of injection
The injection of the water would result in the dilution of the plasma. The dilution of the blood plasma would make it hypotonic as compared to the red blood cells present in the plasma.
In the hypotonic plasma, the red blood blood cell would cell. The red blood cell would allow the water molecules to come inside and as a result of inflow of the water, the cell will swell and probably burst. So, the red blood cells at the site of injection will swell and burst due to the injection of water.
If you have just eaten, your body secretes ______ to uptake glucose; if you have not eaten all day, your body secretes ______ to promote glycogen breakdown.
Scientific models must be able to generate ___________.