Answers
Answer:
The correct answer is C.
Explanation:
Protein kinase A (PKA) is one of these proteins for which cAMP is an allosteric activator that binds to the corresponding regulatory center in the enzyme, inducing dissociation of regulatory and catalytic subunits; The latter are thus arranged for the binding of the corresponding substrate proteins, which it phosphorylates at the expense of ATP and consequently modifies their activity. The phosphorylation and activation of glycogen phosphorylase depends on glycogen phosphorylase kinase, the latter enzyme that is a substrate for PKA.
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Why are bacteria necessary to life?
A. because they move and make biologically important elements available to the organisms that need them.
B. because they are food for all organisms
C. because they generate heat which is necessary for life
D. because they provide oxygen which all living things need
Answers
Answer: D
Explanation: Bacteria are helpful because they produce oxygen, which our bodies need to breathe, and they help us to digest the food we eat.
3. Some organelles are present in both plant and animal cells. Each organelle performs a different
function. Which of the functions listed below are performed by organelles found in both plants
and animals?
Answers
Answer:
Organelles that are present in both forms of eukaryotic cells are the following :
Nucleus
Endoplasmic Reticulum
Ribosomal units
Golgi apparatus
Lysosomes
Perixosomes
Mitochondrion
Cytoskeleton/Cytosol
Vacuole
Nucleolus
Plasma membrane
Microtubules/Microfilaments
All celluar functions corresponding to the organelles can be found in both plant and animal cells
Explanation:
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Design and organise learning experiences according to your local circumstances when teaching Processing (including traditional processing of raw materials; metal processing; food processing)
Answers
When teaching Processing, it is essential to design and organize learning experiences that align with local circumstances and provide practical applications.
Here is a suggested approach for teaching Processing, including traditional processing of raw materials, metal processing, and food processing, considering local circumstances:
1. Introduction and Contextualization:
Start by introducing the concept of processing and its importance in various industries. Provide examples of local raw materials, metals, and food products that undergo processing. Discuss the significance of processing in the local economy and its impact on society.
2. Field Trips and Industry Visits:
Arrange field trips to local processing facilities such as factories, mills, or food processing plants. These visits offer students firsthand exposure to different processing techniques and machinery. Encourage students to observe and interact with professionals in the field, asking questions and understanding the practical aspects of processing.
3. Hands-on Workshops:
Organize hands-on workshops where students can engage in practical activities related to processing. For example, set up a metalworking workshop where students can learn basic metal processing techniques like cutting, shaping, and welding. Provide guidance on safety measures and proper tool usage.
4. Local Case Studies:
Explore local case studies of successful processing businesses or initiatives. This could involve inviting guest speakers from local processing companies or inviting entrepreneurs who have started their own processing ventures. Students can learn about the challenges, opportunities, and sustainable practices in the local processing industry.
5. Project-Based Learning:
Assign project-based tasks that allow students to apply their knowledge of processing. For example, students could design and develop a prototype for a food processing machine or propose innovative methods to improve traditional processing techniques using local resources. Encourage creativity, critical thinking, and problem-solving skills throughout the project.
6. Community Engagement:
Encourage students to engage with the local community by organizing outreach programs related to processing. This could involve organizing workshops for local artisans or collaborating with local farmers to develop value-added food products. Such activities foster a sense of social responsibility and provide students with real-world experiences.
7. Assessment and Reflection:
Regularly assess student understanding through quizzes, assignments, and presentations. Encourage reflective practices where students can evaluate their own learning journey and identify areas for improvement. Incorporate feedback mechanisms to continuously enhance the learning experiences.
By designing learning experiences that incorporate field trips, hands-on workshops, local case studies, project-based learning, community engagement, and reflective practices, students will develop a holistic understanding of processing and its significance in their local context. This approach will equip them with practical skills, foster creativity, and promote an entrepreneurial mindset, preparing them for future opportunities in the processing industry.
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Salmah suspects that she has been given a forged cheque. How can
the forgery be identified using one of the scientific processes?
Answers
Answer:
Paper Chromatography
Investigators use paper chromatography to distinguish the different brands of ink pens used by the suspects and compare it to the forged cheque.
this is responsible for providing shape to the cell
Answers
How is carbon
exchanged between
living and the
nonliving parts of the
environment?
Answers
Answer:
Carbon dioxide from the air is used to produce food for plant growth. Carbon moves from plants to animals when animals eat the plants. Also, Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere.
The burning of fossil fuels also releases carbon dioxide into the atmosphere.
Why are cells called the building blocks of an organism?
O They are visible to the naked eye.
O They are made from nonliving materials.
O They are the basic unit of life.
They are able to generate new cells.
Answers
Answer:
They are the basic unit of life
Explanation:
Everything is made of cells. Without them, all living things would not be able to function, survive, or exist. This is because cells are what separates living organisms from non-living objects.
Answer:
C
Explanation:
If a food has many calories relative to its physical size, it's considered to have a
A. high calorie density.
B. low calorie density.
C. high fat density.
D. low fat density.
Answers
Answer:A
Explanation: High-calorie density per its physical size
Answer:
A is the answer because it is high in calories density
How does plant with particulate matter affect the economy
Answers
Answer:
By the roots under the so I creating a stabilized climb
A crane has a sharp and pointed beak while the duck has a flat beak.Explain why
Answers
Answer:
The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.
On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.
The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.
Point mutations, such as silent, nonsense, and missense mutations, are caused by
A. The deletion of a single chromosome within the nucleus.
B. the deletion of a single nucleotide along the DNA strand.
C. the change in a single nucleotide along the DNA strand.
D. the addition of a single nucleotide along the DNA strand.
Answers
Point mutations, such as silent, nonsense, and missense mutations, are caused by C. the change in a single nucleotide along the DNA strand.
What is the source of missense mutations?Missense mutations occur when a single nucleotide base in a DNA sequence is replaced with another, resulting in a different codon and, therefore, a different amino acid. These mutations are relatively frequent, and in most situations, they have little effect on the protein's overall structure and function.
A silent mutation occurs when the mRNA codon codes for the same amino acid as the point mutation, a missense mutation occurs when the mRNA codon codes for a different amino acid, and a nonsense mutation occurs when the mRNA codon becomes a stop codon.
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Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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Please please help!
Answers
Answer:
should be 4
Explanation:
plants cant do photosynthesis without sunlight
writ any three features describing the open sea ecosystem
Answers
Answer:
1 Introduction; 2 Zonation; 3 Characteristics
Explanation:
7. A stem cutting of a rose plant was planted in a pot. Weeks later, the cutting grew roots and began to grow into a new rose plant. Which process led to the formation of the new rose plant? A. Asexual Reproduction B. Germination C. Pollination D. Sexual Reproduction
Answers
Bioluminescence is the emission of light by a living organism. It occurs naturally in many organisms. For example, one species ofjellyfish has a protein that causes it to glow in a bright, green color. Scientists have isolated the gene that produces thebioluminescence protein and inserted the gene into the embryos of tetra fish. This results in tetra fish that produce a green glow.Which statement explains why the tetra fish are able to produce a green glow?OA The protein that produces green light was taken from the jellyfish and injected into the tetra fish.OB. The genetic material of both the jellyfish and tetra fish were combined, which created a fish with all traits from bothspeciesC. The inserted gene gave the tetra fish the ability to make the protein that produces green light.ODThe tetra fish were bred with jellyfish, which produced offspring that can make the protein for green light
Answers
The best option would be the letter C. The inserted gene gave the tetra fish the ability to make the protein that produces green light.
Does the sun affect the tides???
Answers
Answer:
The most of the time tides are caused because if the moon but the sun also pulls on the tides, BUT depending on the positions of the sun, earth and moon, the ocean my experience a spring tides, neap tides, or even somewhere in between.
I took this exam and got a A
Answer:
yes the brighter the sun the hotter and lower the tide
Explanation:
50 POINTS!!!! Which result is a predicted result of the melting of the world's ice sheets?
A.) Sea levels around the world may rise.
B.)Greenland will become a subtropical zone.
C.)More drinking water will become available.
D.) Native Inuit peoples will become extinct.
Answers
The answer is A I took the k12 test
A predicted result of the melting of the world's ice sheets is option "A" that is Sea levels around the world may rise.
How does melting ice sheets affect climate change?When warming temperatures slowly liquefy sea ice over the period, more periodic bright covers are open to reflect sunlight back into the atmosphere.
More solar energy is soaked at the surface and ocean temperatures rise. This starts a process of warming and melting.
Thus, option "A" that is Sea levels around the world may rise.
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The return of water vapor to a liquid form is called: condensation A. rain B. dew point C. evaporation D.
Answers
Answer:
condensation
Explanation:
D
4) This diagram shows a food chain from a desert ecosystem in Arizona. The arrows show
how the matter eaten by organisms moves through the food chain.
western
diamondback
rattlesnake
Select each organism below that is a primary consumer in this food chain.
brittlebush
pallid-winged
grasshopper
ubmit
brittlebush
grasshopper mouse
red-tailed hawk
grasshopper
mouse
pallid-winged
grasshopper
red-talled
hawk
western diamondback
rattlesnake
Question
answere
28
Time
elapsed
PAUSE
Challeng
Stage 3 of
Get 5 corred
in a row
Answers
The primary consumers in the food chain are the organisms that eat the producers, which in this case are the brittlebushes. The primary consumers are the pallid-winged grasshoppers.
The other organisms in the food chain are secondary consumers (grasshopper mouse), tertiary consumers (red-tailed hawk), and apex predators (western diamondback rattlesnake).
Here is a diagram of the food chain with the primary consumers highlighted in green:
brittlebush (producer)
----------------------->
pallid-winged grasshopper (primary consumer)
----------------------->
grasshopper mouse (secondary consumer)
----------------------->
red-tailed hawk (tertiary consumer)
----------------------->
western diamondback rattlesnake (apex predator)
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Mary received a flu vaccine. Why didn't the vaccine make her sick?
Answers
Mary didn't get sick from the flu vaccine because it contains the smaller portion of the flu which isn't strong enough to infect you. Moreover, your white blood cells attack the portion of the flu while the memory cells take note of the flu, so when it comes next time, it won't affect your body because it knows how to fight the virus.
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What is true about any two normal gametes from a human male parent?
A. Each has a diploid number of chromosomes.
B. They can combine to form a new organism.
C. Their chromosomes are exactly the same.
D. They have the same number of chromosomes.
Answers
Answer:
B
Explanation:
A study was made of endangered birds to see if their populations were increasing by being protected from hunters. Scientists went out into the field every ten years and counted the number of Whooping Crane, California Condor, and Black Swans they found in their spring feeding grounds. What is the independent and dependent variables?
Answers
The independent variable influences and causes a change in the dependent variable. Hunting -independent variable- influences on the species population sizes -dependent variable-.
---------------------------------------------
Available data:
Question: Are endangered birds populations increasing by beingprotected from hunters?
Methodology: Counting the number of Whooping Crane, CaliforniaCondor, and Black Swans every ten years.
Before conducting the experiment, researchers need to identify the study groups –experimental and control groups- and the variables involved.
⇒ The study groups are the species Whooping Crane, California Condor, and Black Swans.
⇒ Variables
Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is modified to analyze its effects on another variable. The researcher changes on purpose the independent variable to observe the response of the dependent variable.In the exposed example, the independent variable is hunting. Hunting affects the previously mentioned species, moreover because they already are endangered species. So excessive hunting might cause species extinction. Reduced or controlled hunting might help the population sizes to remain constant. But no hunting at all might be closely related to an increase in their population sizes.
Dependent variable: Refers to the variable, which response depends on any change in the independent variable. Any change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable.
In the exposed example, the species population sizes are the dependent variables. Researchers measure every ten years how many animals of each species remain in the study area. These numbers depend on hunting, and their changes are inversely proportional to the change in hunting. An increase in hunting means a decrease in the species population size. a Decrease in hunting means an increase in the species population sizes.
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Which of the following is least likely to affect the metabolic flux of a metabolic pathway?Choose one:A. Steady-state substrate concentrationsB. Decoupling of a favorable and an unfavorable reactionC. Formation of a multienzyme complex by pathway enzymesD. Large influx of substrate
Answers
The steady-state substrate concentrations are least likely to affect the metabolic pathway.Thus, option a is correct.
The movement of a metabolite through a reaction system over time is known as metabolic flux, and flux analysis is the synthesis of time-course metabolomics methods with computer modelling of pathways.
The movement of a metabolite through a reaction system over time is known as metabolic flux, and flux analysis is the synthesis of time-course metabolomics methods with computer modelling of pathways.
In order to determine the rates at which metabolites are produced and consumed in a biological system, metabolic flux analysis (MFA), a fluxomics experimental technique, is utilised. It makes it possible to measure metabolic fluxes inside of cells, revealing information on the cell's primary metabolism.
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Skeleton features cladogram
Answers
The main skeletal features used to construct a cladogram include the presence or absence of specific bones/structures, bone shape/structure, dental characteristics, skeletal adaptations, and skull morphology.
Cladograms are phylogenetic trees that illustrate the evolutionary relationships between different organisms. When constructing a cladogram, various skeletal features can be used as characters to determine the branching patterns and common ancestry among organisms. Here are some main skeletal features used in cladistic analysis:
Presence or absence of specific bones or structures: The presence or absence of certain skeletal elements, such as wings or limbs, can provide insights into evolutionary relationships.
Bone shape and structure: Comparing the shapes, sizes, and structures of bones can help identify shared characteristics and infer common ancestry.
Dental characteristics: The structure and arrangement of teeth, including the type and number of teeth, can provide information about evolutionary relationships and dietary adaptations.
Skeletal adaptations: Features like the presence of a notochord, presence of a bony skeleton, or modifications for specialized locomotion (e.g., wings, fins, limbs) can be used to infer evolutionary relationships.
Skull morphology: Examination of the skull, including the shape of the cranium, presence and structure of specific cranial bones, and jaw structure, can help determine evolutionary relationships and functional adaptations.
By analyzing these skeletal features and comparing them across different organisms, cladistic analysis aims to identify shared derived characteristics (synapomorphies) that indicate common ancestry and to construct a branching pattern that represents the evolutionary relationships between the organisms being studied.
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What are the main skeletal features that can be used to construct a cladogram?
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Mr. Jones's prescription calls for 1.04 tablets per day. Based on this information, how many tablets should Mr. Jones take per day? a) 1.25 O b) 1.5 c) 1 O d) 2
Answers
El Ninos tend to result in cooler,wetter conditions across Texas.Which is likely to occur in Texas during El Ninos
Answers
El niño causes a drop in temperatures and increases in rainfall across Texas.
What is El niño?The unusual warming up of the surface of the water in the eastern tropical region of the Pacific ocean is termed El niño. El niño is a phase of the phenomenon called the El niño Southern Oscillation (ENSO).
El niño is the warmer phase of this phenomenon. The cool phase of the ENSO phenomenon is called the La niña. It results in the cooling of the regions of the water's surface.
El niño impacts the currents of the oceans starting from Australia to Southern America. It is an irregular event and can happen once from two to seven years.
Therefore, in texas, it results in a drop in temperatures and increases in rainfall.
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Where are the A, B and RH antigens located
Answers
Answer: The A, B, and Rh antigens are located on the surface of red blood cells.
Explanation:
Does the graph represent an endothermic or exothermic reaction
Answers
Answer:
Explanation:
The graph shows that the second straight line(products) is higher than the first(reactants). If the products have more energy, then it means that the substance ABSORBED energy, and that is ENDOTHERMIC.
Q1) Describe three ways food chains can be disrupted
Answers
Answer: one of the higher animals on the food chain die out, less water, heat waves
Explanation:
Answer:
Explanation:Overpopulation. Water pollution. Acid rain. Climate change. Air pollution. Illegal hunting