Answer:
e. bind to troponin which moves the tropomyosin.
Explanation:
Troponin (Tn) is a protein complex composed of three different proteins: troponin C (TnC), troponin I (TnI), and troponin T (TnT). This complex is found both in skeletal muscles and cardiac muscles, where TnC attaches calcium ions through four and three calcium ion-binding sites, respectively. When a muscle is relaxed, Tn attaches to tropomyosin to prevent muscle contraction. During muscle contraction, calcium channels open and cytosolic calcium ions bind to TnC, thereby Tn changes its conformation and moves the tropomyosin. This process relieves the inhibition of the interaction between actin and myosin filaments, which makes muscle contraction possible.
how many degrees in a triangle
Answer:
The internal degrees in a triangle add up to 180
Explanation:
Answer:
Three are three angles in a triangle which all add up to exactly 180 degrees
Explanation:
If a plant fall which way will the roots grow
Answer: The roots grow whichever way gravity will push them.
A salt marsh community includes egrets, gulls, and marsh crabs living together in a salt marsh. What does one female egret represent?
Answer:
It is a tool for keeping population in equilibrium state.
Explanation:
One female egret represents that she is a tool for the continuity of its breed or species because female egret lays eggs and reared their offspring in order to maintain its generation in that salt marsh area. These female egrets are the essential part of this salt marsh ecosystem due to the ability to control the population of other organisms through feeding behaviour. These female egrets helps in maintaining the equilibrium of the ecosystem by constantly producing baby egrets.
The genetic material of a bacterial cell is:
None of the above
DNA is present in chromosomes
Double stranded circular DNA
A single stranded DNA molecule
Answer:
DNA is present in chromosomes
Question 4
Which of the following is not considered hazardous waste?
A
dead batteries such as those used in flashlights and radios
B
rotting meat and other food waste
С
metals such as lead and mercury
D
b rotting meat and other food waste
How do elephants warn their family groups of a dangerous predator in their habitat?
A. They use their trunks to make loud sounds.
B. They stomp their feet to create noise.
C. They use their tusks to kick up dirt.
D. They flap their ears rapidly.
Answer:
How do elephants warn each other?
When they're excited, scared or happy, elephants make the trumpeting sounds you're probably familiar with. They vocalize in other, more complicated ways, too — low-pitched rumbles outside our range of hearing. At less than 20 hertz, these infrasonic calls are often used to alert each other to danger.
Explanation:
soo A
YALL PLEASE HELP 90 points ;(
Answer:
it is too small so i can't see it
Answer: Could you make it bigger because I don't have my glasses. Thx and will answer when problem is solved.
Explanation:
Which wavelength is reflected off plants stems and leaves
Proteins on the surface of a human cell and on a bird influenza virus are represented in the diagram below. Describe a change in the bird influenza virus that would allow it to infect this human cell.
Answer:
Viral proteins can modify the most superficial portion in such a way that it is complementary to the receptor of the human cell.
Generally this happens due to a genetic recombination between an avian virus and a human virus within the respiratory epithelium of the pig: this process underlies the emergence of new, more virulent strains of the influenza virus and underlies the emergence of influenza pandemics
Similarities between tridax plant and elephant grass
Answer:
ok so basically they just
GIVING BRAINLIEST ANSWER CORRECTLY FOR 40 POINTS
List 3 people from the history of biotechnology and write one sentence about each persons contribution
Answer:
Karl Ereky
Explanation:
He discovered it
Describe three ways in which economies are
likely to be affected by climate change
Answer:
1. Climate change affect the geography within which economy of the world operate
2. It changes the comfortability of human within the global industry
3. Growth Zone is affected
Explanation:
1. Climate change affect the geography within which economy of the world operate: economic of the world are affected by change in climatic condition in the since that there is shift in the usual period of seasons. For example, taken Nigeria as a region in West Africa, rainfall is expected to start around March in almost all part of the country, however, due to climate change, some part don't still have rain till May. This causes a shift in farmers plan and affect the supply of farm produce to the local market and to the global market, in turn affecting the gross domestic product of the country.
2. It changes the comfortability of human within the global industry. Take for example, fossil fuel, it is part of human being to address some unfavourable conditions among which is climate change which causes global warming, during this period, the way industries and people uses fossil fuel are been changed and it have direct effect to global economy.
3. Growth Zone is affected: change in climatic condition changes world economy growth zones. Thus could be seen in transportation sector, when the water level is affected, international movement of cargoes by ship are affect and hence, some trades agreements are altered thereby changing the growth zone.
Caenorhabditis elegans is a species of soil-dwelling nematode (roundworm) that feeds on soil bacteria, including Bacillus thuringiensis.
a. True
b. False
Answer:
b. False
Explanation:
Caenorhabditis elegans is a well-known species which is widely used in genetic experiments (i.e., it is a model organism). C. elegans is a soil nematode that eats bacteria, but its survival depends on the ability to distinguish toxic from non-toxic ones. C. elegans cannot feed Bacillus thuringiensis because this bacterium produces a toxin Bt protein that damages its gut, thereby producing the death of this nematode. Interestingly, it has been proposed that Bt toxin pathways might be exploited for the design of new generation nematicides.
Which three organ systems work together to take in oxygen and other
nutrients and deliver them to an animal's body cells?
A. Respiratory, because it takes in gases from the external
environment
B. Circulatory, because blood absorbs nutrients and carries them to
other cells
c. Nervous, because it controls the body functions and responses to
stimuli
D. Digestive, because it breaks down the nutrients in food into
substances that can be used by cells
Answer:A, B and D
Explanation:Respiratory takes in oxygen and digestive absorbs nutrients from the food while the circulatory deliver those through the entire body.
A B D im on the exam
Question:
The phenylketonuria occurs in 1 of 10,000 individuals in a population. It is
caused by an autosomal recessive allele. Calculate the frequency of heterozygotes
in the population.
Answer:
10000 divided by 1 and then that answer
A plant is wilting in response to internal stimuli. What action can you take to make the plant stand tall?
F. Place a towel over the plant.
G. Put it in a pot with another plant.
H. Place it in a dark closet.
J. Provide water for the plant.
Answer:
It is either J or G my answer would be G
~Tori
Do you think humans would be
as dominant if the dinosaurs
were still present?
Answer:
Probably not, as we might have evolved to become prey instead of predator
Answer:
i dont think so.
Explanation:
the dinosaurs would've already ate us, and crushed the cities. dinosaurs are too dangerous for us. especially the T-rex.
Bare rock
Colonised by
pioneer species
(e.g. moss)
Decomposition
creates a layer
of topsoil
Grasses grow
and displace the
pioneer species
More nutrients
in soil allows for
shrub growth
Increase in soil
depth allows for
growth of trees
What ecological process is shown above?
O migration
O primary succession
O secondary succession
O nitrification
Answer:
Primary Succession
Explanation:
Primary Succession is a barren area exposed by a retreating glacier
A drought decreases the water level in Lake Winnipeg. The carrying capacity of the lake decreases.
Limiting factor?
Explain
Answer:
Water, fish
Explanation:
The limiting factors are the water of course and the organisms living in the lake.
A drought decreases the water level in Lake Winnipeg and the carrying capacity of the lake decreases. This is because it is:
Density IndependentWhen something is said to be density Independent with respect to ecology, it means that an external force is able to influence the volume of a habitat, notwithstanding the density.
As a result of this, this particular principle is in place here as a drought which is an external factor is able to affect the size of the water.
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. Which of the following would you expect to have cells with a cell membrane? *
1 point
panda bears
pine trees
spiders
all of the above
Answer:
All of the above!
Explanation:
I'm just sure it's that.
Answer:
The answer is all of the above
Explanation:
Both plant and animal cells have a cell membrane.
What is the main job of the white blood cells?
Answer:
They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.
Check all of the following statements that represent an example of predation. Check All That Apply A deer eats the leaves of a tree.A deer eats the leaves of a tree. Barnacles grow on various marine animals.Barnacles grow on various marine animals. A snail eats a clam.A snail eats a clam. A fungus decomposes dead organic matter.A fungus decomposes dead organic matter. A tree absorbs inorganic nutrients from the soil.A tree absorbs inorganic nutrients from the soil.
Answer:
- A deer eats the leaves of a tree.
- A snail eats a clam
Explanation:
Predation is one of the mode of feedings used by certain organisms. It is a relationship between two organisms in which one of the organisms called PREDATOR kills/harms and feed on the other organism called PREY.
According to this question, the two examples that represent predation are as follows:
- A deer eats the leaves of a tree; the deer, which is the PREDATOR feeds on a tree plant, which is the PREY.
- A snail eats a clam; the snail is the PREDATOR in this case and it harms the clam (PREY) by killing and feeding on it.
Answer:
A deer eats the leaves of a tree.
A snail eats a clam
Explanation:
E2023
Which of the following are characteristics of
Ascomycota? Check all that apply.
flagellated spores
spores produced in the ascus
lack reproduction phase
important in the food industry
important in the digestion of animals
can cause disease in plants
can cause disease in animals
Answer:
can cause disease in animals/ important in the food industry/spores produced in the ascus
Can viruses live through mutation and natural selection
Answer:
sure why not
Explanation:
as the virus mutates, it may increase, or lessen the chance for the virus to survive a battle against its host. like your regular living organisms (though keep in mind viruses are not considered living), some survive and some die due to natural selection and mutation.
The function of the hepatic portal circulation is to ________. The function of the hepatic portal circulation is to ________. return glucose to the general circulation when blood sugar is low carry toxins to the kidney for disposal through the urinary tract distribute hormones throughout the body collect absorbed nutrients for metabolic processing in the liver
Answer:
The correct answer is ''collect absorbed nutrients for metabolic processing in the liver.''
Explanation:
Portal circulation is called that system that is between two large capillary beds, represented by the gastrointestinal organs, pancreas and spleen on the one hand, and the liver on the other. Hence, any venous system of the organism that is located between two capillary territories is called "portal system".The hepatic portal vein collects the deoxygenated blood from the gastrointestinal system, spleen and pancreas, this blood is venous and comes deoxygenated, in addition to being loaded with the nutrients absorbed in the digestive process, so it is a blood subjected to a high overload, but that quickly, thanks to its distribution through the liver, it will be bypassed to various chemical processes to extract a large part of the nutrients from it, and purify and eliminate toxins.
The function of the hepatic portal circulation is to collect absorbed nutrients for metabolic processing in the liver. Therefore, option D is correct.
The hepatic portal system is also known as the hepatic portal circulation or portal venous system. It is a specialized network of blood vessels that carries blood from the gastrointestinal tract, spleen, and pancreas to the liver. It plays a crucial role in directing nutrient-rich blood from the digestive organs to the liver for processing, storage, and detoxification before it is distributed throughout the rest of the body.
The hepatic portal system allows the liver to regulate the composition of blood coming from the digestive organs before it enters general circulation. Thus, option D is correct.
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what is an amino acid
Matter is passed from the living part of an ecosystem to the non-living part when which of the following takes
place?
A. Plants absorb gases
B. Plants decompose
C. Animals eat plants
D. Animals drink water
what is self-imcompatibilty???
Explanation:
Hope it will help you to solve your question.
Answer:
hiiiiiiiiiiiiiiiiiiii
Explanation:
understand
A weather map is shown for the southern United States. According to the map, tornadoes are most closely associated with which
weather event?
A)
blizzards
B)
cyclones
hurricanes
D)
thunderstorms
A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
What is the use of map in weather or garden?
Map is the distribution of flower in a garden. A diagram has been used to label an object so the parts can be recognised easily. A 3-D model has a xerox copy of the object in a three dimensional figure . An information a word so one can assume infographic . A map helps to represent the layout of the land or distribution of flower in garden.
Geographic information system (GIS) has been analyzed and visualize data for geographic positions on Earth's surface. GIS has computer - based tool that examines spatial relationships, pattern and trends. By connecting geography with data, GIS better understands data using a geographic context.
Therefore, A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
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CAN SOMEONE HELPP ME :(