Answer:
The three stimuli that cause the plants to exhibit tropism are:
1. Touch: This stimulus triggers thigmotropism, which is the turning or bending of the plant and tendrils in response to the touch.
2. Light: This stimulus triggers phototropism. It is how the plant reacts toward the direction of the light source. In this case, the stem may bend in response to the direction of the light.
3. Gravity: This stimulus triggers phototropism gravitropism, which is responsible for the downward growth of roots into the soil.
The three stimuli that cause the plants to exhibit tropism are: Touch, light and gravity.
What is Tropism?
Tropisms are biological occurrences that signify the expansion or rotation of a living thing, typically a plant, in response to environmental stimuli. Tropisms are frequently connected to plants (although not necessarily restricted to them).
Movement or activity in response to a particular stimulus is more likely to be viewed by an organism where it is capable of purposeful physical movement (motility).
1. Touch: This stimulus triggers thigmotropism, which is the turning or bending of the plant and tendrils in response to the touch.
2. Light: This stimulus triggers phototropism. It is how the plant reacts toward the direction of the light source. In this case, the stem may bend in response to the direction of the light. 3. Gravity: This stimulus triggers phototropism gravitropism, which is responsible for the downward growth of roots into the soil.
Therefore, The three stimuli that cause the plants to exhibit tropism are: Touch, light and gravity.
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An plant only requires the correct chemicals to make plant food
Please help. What safeguards are in place to protect Americans from unsafe food? Are these methods science-based?
Answer: The FDA and USDA cerate food safety programs, safeguards to protect Americans, to protect people from unsafe food. The FDA has monitoring programs for pathogens, naturaltoxins, pesticides, etc.; their methods are science-based.
The safeguards that are placed to protect Americans from unsafe food are FDA and USDA. FDA means food and drug administrator and USDA means U.S. department of agriculture.
What are FDA and USDA?FDA stands for food and drug administrator. It is a health and food department to ensure public health and to check the food items that the citizens are consuming.
USDA stands for The United States Department of Agriculture. The department is responsible for making the laws regarding food quality, and they also develop new qualities of fruits and vegetables.
These departments are based on scientific research and methods. Many scientists work under this to save people from having bad food.
Thus, The FDA and USDA are the safeguards set up to protect Americans from tainted food.
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Q1.
The process of Transcription is involved in the ?
(a) Conversation of RNA & DNA
(6) Movement of RNA from nucleus
(c) Formation of RNA & DNA
(d) None of these
Answer:
Transcription is DNA -> RNA
Explanation:
Transcription is DNA to RNA
Translation is RNA-> Proteins
(4pts) Drugs, medicines, and poisons often work by acting on endogenous proteins. They do this by looking similar to a signal molecule and binding to the endogenous protein. Look up these four examples to fill in this chart. Drug, medicine, or poison Looks similar to this endogenous molecule: Binds to this endogenous protein/receptor: Muscarine Acetylcholine muscarinic receptors Prozac Serotonin serotonin transporter protein Ketamine NMDA NMDA receptor Tamoxifen estrogen estrogen receptor
Answer:
Drug, medicine, or poison: Muscarine; Looks similar to this endogenous molecule: Acetylcholine; Binds to this endogenous protein/receptor: muscarinic receptors
Drug, medicine, or poison: Tamoxifen; Looks similar to this endogenous molecule: estrogen; Binds to this endogenous protein/receptor: estrogen receptor
Drug, medicine, or poison: Prozac; Looks similar to this endogenous molecule: Serotonin; Binds to this endogenous protein/receptor: serotonin transporter protein
Drug, medicine, or poison: Ketamine; Looks similar to this endogenous molecule: NMDA; Binds to this endogenous protein/receptor: NMDA receptor
Explanation:
Muscarine is a poisonous natural product found in certain mushrooms. It is similar to acetylcholine and competes with acetylcholine at its receptor binding sites.Signs of muscarine poisoning include salivation, lacrimation, vomiting, diarrhea, abdominal pain, bradycardia, etc.
Tamoxifen is a selective estrogen receptor modulator. It is similar to estrogen and acts by inhibiting the effects of estrogen in the breast tissue. It is used to prevent and treat breast cancer in men and women.
Prozac is an antidepressant which belongs to th class known as selective serotonin reuptake inhibitors. It looks similar to serotonin and inhibits its action by competing with serotonin for its binding site. It is used for the treatment of depression disorders.
Ketamine is an NMDA (N-Methyl-D-aspartate) receptor antagonist. NMDA receptor antagonists are a class of drugs that work by inhibiting the action of the NMDA receptor. They are commonly used as anesthetics for animals and humans to induce a state of anesthesia known as dissociative anesthesia.
LOTS OF POINTS!?!?!The amount of CO2 coming out of volcanoes is less than Type Here% of what goes into the atmosphere from burning fossil fuels.
FILL IN THE TYPE HERE PART!?!?!?!
Study this image. PLEASEE HELPP WILL GIVE BRAINLYEST
Which statement correctly explains what is happening?
A. Oceanic and continental plates are colliding.
B. Oceanic and continental plates are shifting past each other.
C. Two continental plates are forming a large mountain.
D. Two oceanic plates are creating several island chains.
Answer:
its B
Explanation:
becuse When oceanic or continental plates slide past each other in opposite directions, or move in the same direction but at different speeds, a transform fault boundary is formed. No new crust is created or subducted, and no volcanoes form, but earthquakes occur along the fault.
HURRY I NEED HELP QUICKLY. As part of an adventure challenge, you find yourself dropped into a unknown place. There are birds and wolves. The air is cold, and the ground is very hard. What biome have you landed in? Explain.
Answer:
You have landed in a tundra.
Explanation:
Birds as in penguins
Wolves as in Arctic wolves/foxes
The ground is hard because it is frozen
The air is cold
3. Your family is planning a picnic for the weekend. Would you want predictions of weather
or climate? Explain your answer.
(PLEASE HURRY)Strong winds blow sand to a new location, and some of the sand forms a sand dune. The first plant species to live in the new habitat of the sand dune is a type of grass. This grass stabilizes the sand dune. Over time, the sand dune grows larger and soil forms on the surface. As these changes occur, different plant species become dominant.
Why doesn't the original grass remain the dominant plant on the sand dune?
A.
The grass cannot reproduce fast enough to cover all of the growing dune.
B.
New plants are better suited to the new conditions in the sand dune habitat.
C.
The grass moves to new sand dunes to start the succession process again.
D.
New animals come to the new sand dune habitat and eat the grass.
Why do most of the marine species live at or near the surface of the ocean
Answer:
Most marine organisms live within the sunlit surface waters. Strong sunlight supports photosynthesis by marine algae. Algae either directly or indirectly provide food for the majority of organisms. ... Most marine animals also live near the surface because this is where they can find food.
Explanation:
Brainliest please?
Activity #1
Normal DNA Sequence
DNA:
TACCCCGTGCAT ATAT CATATAGCACT
mRNA:
Protein:
Mutated DNA Sequence
DNA:
TACCCCGTGCACATATCGTATAGCACT
mRNA:
Protein:
Describe the effects of the change(s) in the mutated DNA sequence. Did the protein change? Do you think
this protein can perform its normal function?
Stephanie Elkowitz
Help please!!!!
for the normal DNA sequence, since thymine (T) binds with adenine(A) and Adenine(A) binds with uracil(U) because there is no thymine is RNA guanine(G) pairs with cytosine(C) :
normal DNA:TACCCCGTGCAT ATAT CATATAGCACT
normal mRNA:AUG GGG CAC GUA UAU AGU- AUA UCG UGA
i grouped letters in threes as codons
normal Protein:methionine-glycine-histidine-valine-Tyrosine-Serine-Isoleucine-serine-stop
mutated DNA:TACCCCGTGCACATATCGTATAGCACT
mutated mRNA:AUG GGG CAC GUG UAU AGC AUA UCG UGA
mutated protein:methionine-glycine-histidine-leucine-Tyrosine-Serine-Isoleucine-Serine-stop
In the mutated protein valine is replaced with leucine. Those two amino acids have different radicals that perform different functions so the protein will have an altered function.
What substances are combined with sunlight in the process of photosynthesis?
A. carbon dioxide and water
B. water and simple sugar
C. carbon dioxide and oxygen
D. oxygen and simple sugar
Answer:
D is the answer
Explanation:
check it out
In the above diagram as the price for computer monitors decreases, the demand
A-stops
B-decreases
C-stays the same
D- increase
PLZ HELP I GIVE BRAINLIEST AND LIKE DUE PLZ PLZ
Answer:
D
Explanation:
Increase
Match the characteristics below to either gymnosperms or angiosperms.
____________nonflowering
_____________exposed seeds
____________garden flowers and tomatoes
______________seeds enclosed in fruit
______________pine or fir trees
______________flowering
*Choose from either Gymnosperms or Angiosperms*
Answer:
Gymnosperms:-
non-flowering, exposed seeds, pine, or fir fruit.
Angiosperms:-
flowering, seeds enclosed in fruit, garden flowers, and tomatoes
Explanation:
Gymnosperm
Nonflowering and exposed seed
Gymnosperms are the group of plants that do not possess or produce the egg in the enclosed seed which makes there seed naked or exposed
Pine or fir trees
Fir and pine are trees, and more specifically conifers, which belong to the family Pinaceae. of the gymnosperm
Angiosperms
Garden flowers and tomatoes
Tomato plants and garden flowers are the plants that belong to flowering plants or angiosperms.
Seeds enclosed in fruit
In angiosperms, there is a closed ovary that enclosed the egg to protect it. After fertilization ovary turns into a fruit.
Flowering
Angiosperms are the plants that also known as the flowering plant that means these plants are able to produce flowers that are sexual organs of the plant and help in reproduction.
Explain the interaction with another body system.
Answer:
Body systems are used throughout your body to help you move and to live like the heart for example.
PLEASE HURRY,(GIVING BRAINLIEST) (THE ACTUAL SUBJECT IS SCIENCE)After a major forest fire kills all of the plants in an area, the first plants to grow in the burned area are often types of grass. Because they are the first thing to grow in the new ecosystem, these types of grass are called pioneer species. What adaptations would help the grass be a successful pioneer species?
A.
slow reproduction and the ability to grow in sunny places
B.
rapid reproduction and the ability to grow in sunny places
C.
slow reproduction and the ability to grow in shady places
D.
rapid reproduction and the ability to grow in shady places
Answer: B
Explanation:
To help the pioneer species to grow, it needs to have rapid reproduction. But, it also needs the sun to grow very well. If it does not have the Sun, it will most certainly die and be endangered in the area. The answer is B, we need both rapid reproduction and the Sun.
Answer:
rapid reproduction and the ability to grow in sunny places
Explanation:
After a major fire, less sunlight is blocked by trees and other plants. Plants that can use the increased sunlight are more likely to thrive in the new environment. Rapid reproduction would help a plant species to spread more quickly to take advantage of the resources and lack of competition. Therefore, the adaptations that would help grass be a successful pioneer species are rapid reproduction and the ability to grow in sunny places.
Drag each label to correct location on the image
When a honey bee stings
Answer:
see explanation
Explanation:
please l can't see the image ♂️
Write a paragraph about the symbiotic association between algae and fungi
Answer:
if you need the answer then follow
Explanation:
me and I swear I will send the answer after you follow me
How do plate tectonics support evolution?
Where does warm water accumulate in the Pacific Ocean during El Niño
Answer:
east
Explanation:
Select the best answers from the drop-down menus.
regulate organ function.
control voluntary muscle movements.
control involuntary muscle movements.
Answer:
voluntary muscle movements
Answer: general visceral nerves
Somatic nerves
Special visceral nerves
Explanation:
Describe three roles of lipids
Answer:
-storing energy
-chemical messengers
-structure
Explanation:
Which of the following is not characteristic of a behavior?
Answer:
list
Explanation:
Answer:
exicted
Explanation:
URGENT!
__________ fabric wrinkles less than ____________ fabric.
Linen, synthetic
Jute, Synthetic
Cotton, synthetic
Synthetic, cotton
Answer:
Synthetic, cotton
Explanation:
Synthetic fabric wrinkles less than cotton fabric.
Wrinkle is known to be an unusual fold, ridge or crease in the cloth. Some cloth experience this type of wrinkle why some do not. The material of the cloth determines its ability to wrinkle. Synthetics are known to be more wrinkle resistant than cotton and even linens. 100% linen or a blend of cotton/linen. Even polyester clothes are more wrinkle resistant than cotton.
Below are models of two types of cells. Which of the following structures are common to both cell types?
A. mitochondria and vacuoles
B. mitochondria and cell wall
C. vacuoles and chloroplasts
D. cell wall and chloroplasts
Answer:
A.mitochondria and vacuoles
Explanation:
The one on the left is the animal cell and the one on the right is the plant cell.
Both of these contain mitochondria and vacuoles(are larger in plant cells).
Energy conversion in which sunlight, water and carbon dioxide is converted into oxygen
and glucose.
Answer:
Photosynthesis
Explanation:
Which statement did Virchow's work add to the cell theory?
A. Cells contain genetic material that consists of DNA.
O B. The cell is the basic structural and functional unit of life.
O C. All living things are made of one or more cells.
O D. All cells come from other living cells.
Answer:
D
Explanation:
The German doctor Rudolf Virchow proposed that all cells result from the division of previously existing cells, and this idea became a key piece of modern cell theory.
This results from cytokinesis when he observes cells splitting into two.
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What is the manipulated variable in this experiment?
O A. The distance the snails moved
OB. The size of the petri dishes
C. The temperature of the water
D. The number of snails observed HELP ME
The correct answer is C. The temperature of the water
Explanation:
In an experiment such as the one described about the speed of snails in water, the manipulated variable is the factor or element that is manipulated on purpose. This means the researcher or researchers slightly change this element to compare how this affects another variable. In this context, the manipulated variable is the temperature of the water because researchers used three different temperatures (cool, room-temperature, and warm), and therefore they manipulated or changed this factor. Moreover, it is expected temperature affects the distance nails move, which is the main variable.
a hypothesis for exercise 2 might state "if the five substances are distinct, then they will have unique characteristics that distinguish them from one another." Was this hypothesis supported or disproved?
how is the cell able to make the many different proteins it needs? In your answer, be sure to: identify where in the cell the information necessary to make a particular protein is located and the specific molecule that contains this information AND identify both the cellular structure that makes these proteins and the kinds of molecules that are used as the building blocks of the protein
Answer:
Explanation:
Most genes contain the information needed to make functional molecules called proteins. (A few genes produce other molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell.