Answer:
a
Explanation:
a just trust me on this one
Some bacteria live in the roots of plants like soybeans and peas.
Bacteria growing on plant roots.
What is the role of these bacteria in the nitrogen cycle?
to absorb nitrogen-containing compounds from the soil
to release free nitrogen into the atmosphere
to break down nitrogen-containing compounds in dead organisms
to convert free nitrogen into usable nitrogen
Answer: The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.
Answer:
to conert free nitrogen into unstable nitrogen
___________ transport moves substances from an area of high concentration to an area of low concentration.
Answer:
Diffusion
Explanation:
Any single substance tends to move from an area of high concentration to an area of low concentration, until the concentration is equally divided in the space.
Answer:
diffusion
Explanation:
Why can’t certain blood types be combined?
Answer:
Because it causes complications with the person and the blood
Explanation:
Answer: I hope this helps you plz give me a brainiest
Explanation:
That means people with type A blood create antibodies against B antigens. A person with type A blood receiving a transfusion of type B or AB blood would have an ABO incompatibility reaction. In an ABO incompatibility reaction, your immune system attacks the new blood cells and destroys them.
Which of the following describes a joint?
a. connects bone to muscle
b. helps bones move in different directions
c. connects muscle to cartilage
d. connects bone to skin
HELP ASAP
Suppose a scientist discovers fossils of ancient horses in an area. The fossilized horses are much smaller than modern horses. They are found in the same layer as many fossilized tree trunks. Today, horses still live in the area, but it is now open grassland.
How do you think the environment has changed over time, and how could this change have led modern horses to be larger than ancient horses?
Answer:
Well maybe most of the ancient horses died becuse of how small they were and had to evolve to survive and live longer. Probably.
Explanation:
Answer:I think the environment has changed because there were fossilized tree trunks found with it so that means that there used to be trees in the grassland areas. Maybe the horses were too small so they died or they didn't have enough food to survive off of.
Explanation:
help me i suck at biology
1.Biological evolution is the change over time of populations of ______ organisms
2.Sometimes, sedimentary rocks are removed by road construction, volcanic eruptions or earthquakes. How might scientists determine the age of fossils found in these conditions?
3.Extinctions can be caused by gradual environmental changes, such as mountain formation, or_____ones, such as volcanic eruptions.
4.During what eon and era did the Silurian period occur? Use the words eon and era in your answer.
Check out this short video on Rosalind Franklin, a Jewish woman scientist, whose work never received credit during her lifetime, even though her research is credited to MULTIPLE Nobel Prizes.
Like Marie Curie, she conducted her research using radiation, which likely caused her death from cancer.
Watch the video and then write 1-2 sentences sharing your takeaway from the video- what did you learn or find interesting.
https://youtu.be/BIP0lYrdirI
Answer: Before DNA, she studied the holes in coal. She captured photograph 51. Franklin loved traveling and backpacking. After DNA, the discoveries continued with tobacco viruses. She worked until the last breath.
Explanation: 1. Before DNA, she studied the holes in coal.
Rosalind Franklin was born in the summer of 1920 in London into an affluent and educated family. From a young age, she showed exceptional talent and creativity that manifested in an early fascination with physics and chemistry. After college, she pursued a doctoral degree from Cambridge, and since this was during World War II, she worked on the porosity of coal for fuel purposes and other wartime devices. Her PhD thesis was titled, “The physical chemistry of solid organic colloids with special reference to coal.” After her PhD, she described herself while asking a friend about job openings as “a physical chemist who knows very little physical chemistry, but quite a lot about the holes in coal.”
2. She captured photograph 51.
You probably know that Watson and Crick published a paper in Nature in April 1953, proposing their model of DNA structure. You also know that they won the 1962 Nobel Prize for that paper. What you probably do not know is that in the same issue of Nature, there was a paper by Franklin and her doctoral trainee, Raymond Gosling. The paper was titled, “Molecular Configuration in Sodium Thymonucleate.”
The paper provided experimental evidence that supported some of Watson and Crick’s purely hypothetical arguments. Specifically, the famous photograph 51 shows that DNA is in fact helical. In the conclusion of the paper she wrote, “Thus our general ideas are not inconsistent with the model proposed by Watson and Crick in the preceding communication.”
Prior to the publication of this paper, photograph 51 was shown to Crick without Franklin’s consent, which is still the topic of a debate over ethics and the Nobel Prize, which is more broadly controversial for rarely recognizing women. However, Franklin was given due credit in Photograph 51, a 2015 play about her life, which starred Nicole Kidman.
3. Franklin loved traveling and backpacking.
Her love for science and discovery did not mean that she did not have hobbies. She traveled frequently to her favorite country, France, and backpacked through the French Alps.
She wrote to her mother in 1946,“I am quite sure I could wander happily in France forever. I love the people, the country and the food.” She also traveled to the US for work, where she had made many friends throughout the years.
4. After DNA, the discoveries continued with tobacco viruses.
Franklin’s colleagues at King’s College were getting more and more hostile towards her, calling her “Rosy” and “Dark lady” behind her back. In 1953, One of Franklin’s colleagues (and a Nobel laureate), Wilkins, wrote in a letter to Watson and Crick:
“I hope the smoke of witchcraft will soon be getting out of our eyes.”
The growing sexism she faced drove Franklin out of King’s college, and she moved to Birkbeck College the same year. At Birkbeck, she distanced herself from DNA and started to work on another fascinating molecule, RNA, a molecule that carries genetic information and just like DNA, is vital to life.
She used X-ray crystallography (a method to look at the shape of very small things like viruses) to explore the structure of the Tobacco Mosaic virus (TMV), an RNA virus that infects tobacco plants. Just a few years into this new arena of research, her team put together a clear model of TMV. Their model suggested that TMV is a barrel-shaped virus made up of proteins, with RNA molecules wrapped in the donut hole like a coiled rope. This work has since been extended to several other viruses, and has been fundamental to our understanding of viruses and RNA.
5. She worked until the last breath.
In 1956, Franklin was diagnosed with ovarian cancer and started chemotherapy. But nothing could stop DNA’s Dark Lady and her love for science. She published seven scientific papers in 1956, and went on to publish six more in 1957, all while she was undergoing chemotherapy. This is how the crystallography pioneer John D. Bernal described Franklin’s final months: “Her devotion to research showed itself at its finest in the last months of her life. Although stricken with an illness, which she knew would be fatal, she continued to work right up to the end.”
Franklin succumbed to cancer in April 1958, but her legacy continues to this day. Photograph 51 is in almost every biology textbook around the world. Perhaps she was not appreciated in her time, but the future won’t forget her.
Answer:
Si hay algo que sucedió entre ustedes raro o un comportamiento que tuviste con esa persona o que te vio hacer asi como le pudieron decir algo de ti que no le gustara a tu amigo hace que se comporte raro contigo
Explanation:
The diagram illustrates part of the carbon cycle.
A fawn eating grass.
Which best describes the diagram?
A consumer is obtaining carbon by breathing it in from the atmosphere.
A consumer is obtaining carbon by absorbing it from the soil.
A consumer is obtaining carbon by eating carbon-based molecules stored in a producer.
A consumer is obtaining carbon by eating carbon-based molecules stored in a decomposer.
Answer:
A consumer is obtaining carbon by eating carbon based molecules stored in a producer.
Explanation:
Plants take in Carbon and give off Oxegen. The carbon is stored and chemically used in the plant.
Answer:
A consumer is obtaining carbon by eating carbon based molecules stored in a producer.
Explanation:
make me brainly
Which human cells have 23 chromosomes? (Multi question)
1. somatic or body cells
2.egg cells
3.fertilized egg or zygote
4.sperm cells
2. Egg cells!
Hope this helped you out!
hey i did some of them will someone help by telling me the rest of the answers. thnx <3
Answer:
Explanation:
I dunno sorry
A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a .
Answer:
the generic effect most likely causes each leaf to lack a sufficient root system that can support the plant's growth
Answer:
A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a CUTICLE
Explanation:
The cuticle is the part of the cell (the waxy, water-repellant layer) that prevents injury and water loss
Anne applies a force on a toy car and makes it move forward. What can be said about the forces acting on the toy car at the moment Anne applies the force?
The forces acting on the toy car are ___
A. restricted
B. Balanced
C. Equal
D. Unbalanced
Answer:
D. Unbalanced.
Explanation:
If they were balanced or equal it would not be moving, and if it was restricted something would be stopping it making it unable to move.
The substance in the chart above that has the greatest number of atoms in each molecule is-
iron oxide
sodium chloride
calcium carbonate
magnesium silicate
Answer:
iron oxide
Explanation:
I relly don't know
What are two predator/prey interactions in a Wetland?
Answer:
The dominant predators in these wetlands are macroinvertebrates, mostly aquatic insects. ... two temporary wetlands located in northwest Patagonia,
Explanation:
hope this helps
Answer:
poinnntttsss
Explanation:
Please help me! Look at the pictures, answer the questions.
1. Which of the points on the graph is igneous rock?
A or B or C
2. Why does that point represent igneous rock?
A.Because igneous rocks need high temperature and pressure to form.
B.Because igneous rocks don't need any heat, they only need some pressure for sediments to get compacted.
C.Because igneous rocks are made by melted magma cooling, so it must have a high temperature in order for the rock to melt, and medium pressure.
B on the Graph: High temperature with Medium Pressure
C. Because igneous rocks are made by melted magma cooling, so it must have a high temperature in order for the rock to melt, and medium pressure.
Which structures are found only in plant cells, not in animal cells?
Answer:
B and C
Explanation:
Correct just took on edge 2021
Which statement best explains what happens to a leaf when it has lost much-needed water?
A. Its atmospheric pressure decreases.
B. Its rate of photosynthesis increases.
C. Its rate of transpiration increases.
D. Its turgor pressure decreases.
When a leaf loses much-needed water, its turgor pressure would decrease.
Turgor pressure is created in the cells of a leaf when there is enough water. The water stretches the cell membrane outward, creating a kind of pressure.
When the cells lose water, the cell membrane shrinks inward and loses the supporting pressure.
Thus, the turgor pressure created by the presence of water is lost by the absence of water.
The absence of water also affects the rate of photosynthesis and transpiration negatively and not positively. A leaf losing water has no bearing on the atmospheric pressure.
More on turgor pressure in cells can be found here: https://brainly.com/question/2727035
Of the following organisms, which is more likely to be very slow to respond to stimuli?
1. plant
2. animal
Stimuli are the event that elicits the response in the organisms. Plants are likely to respond very slowly to stimuli compared to animals. Thus, option 1 is correct.
What are stimuli?Stimuli are the factor that triggers the reaction and behavioral or physical changes in an organism. The stimulus can be external in the form of a drug or internal in the form of vital signs like breathing, blood pressure, etc.
The animals are fast to react to stimuli than the plants as the former have a nervous system and the muscular systems that are very fast to send a reaction against stimuli.
On the other hand, the plants lack these types of system that provides quick reaction instead have tropisms that have a slow rate of showing response towards any change.
Therefore, the plants react slowly to the stimulus.
Learn more about stimuli here:
https://brainly.com/question/11557304
#SPJ2
what is the elevation of point Z
1400 ft
1300ft
1200ft
1100ft
topographic maps
BEST ANSWER GETS BRAINLIEST
Which statement is true about a euglena, paramecium, and amoeba?
A. They use different structures to control cell activity.
B. They all make their own food by photosynthesis.
C. They all have eyespots to sense light.
D. They use different structures for movement.
Answer:
d
Explanation:
A growth toward or away from a stimulus in a plant is called: *
turgor pressure
a tropism
a stimulus
germination
Explain why Organic farming is more energy efficient.
Answer:
Organic farms tend to have more fertile soil, use less energy, and sequester more carbon. Research has shown that organic farms use 45 percent less energy,
Organic farming is often considered more energy efficient compared to conventional farming practices for several reasons:
Limited or no synthetic inputs: Organic farming avoids or restricts the use of synthetic fertilizers, pesticides, and genetically modified organisms (GMOs). Soil health and fertility: Organic farming focuses on building and maintaining healthy soils through practices like crop rotation, cover cropping, and the use of organic matter. Reduced reliance on fossil fuel-based machinery: Organic farms often rely more on manual labor, traditional farming techniques, and smaller-scale machinery compared to large-scale industrial operations. Biodiversity and ecological balance: Organic farming practices prioritize the conservation and enhancement of biodiversity by promoting habitat diversity, natural pest control, and pollinator-friendly practices.Carbon sequestration: Organic farming practices, such as cover cropping and the use of organic matter, can enhance carbon sequestration in the soil.Thus, Organic farming is more energy efficient.
For more details regarding organic farming, visit:
https://brainly.com/question/22698584
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What is the difference between stimulus and response? *
A---A stimulus is how an organism behaves and a response what makes an organism behave.
B---A stimulus is how an organism behaves and a response is how the organism behaves.
C---A stimulus is strictly how plants respond to their environment and a response is strictly how animals respond
D--A stimulus is strictly how animals respond to their environment and a response is strictly how plants respond
(Will give brainliest if correct) A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a
Answer:
Cuticle.
Explanation:
"A wax water repellent was made on the outside of the plant called a cuticle to help prevent water loss and injury by keeping the plant hydrated by not letting the water out." -Edge2020 instruction video
Hope this helps!
Which is NOT true of vent bacteria, they are
A.
primary producers
B.
chemosynthetic
C.
photosynthetic
D.
resistant to extreme conditions
A cat is walking down a sidewalk and spots a dog in a nearby yard. The cat starts to run in the opposite direction and then quickly climbs a tree. Which of the following changes most accurately describes the movement of the cat?
A. change in speed
B. change in distance
C. change in velocity
D. change in motion
(i think i know it, i just wanna be sure i have the right answer)
Answer:
I think A or B could be a possibility to your answer
I kinda think it would be a
.Which is true?
The highest cliffs in the world are in South Africa.
Coasts and beaches are always sandy.
People are not allowed to build resorts on beaches.
Oystercatchers use their beaks to pry open shellfish.
Answer:
D.
Explanation:
HELP!!!
The organism that does not have a nucleus is called a(n) ___.
A. Bacteria
B. Algae
C. Protazoa
Answer:
B is the best answer to your question!!!
Name one advantage and one disadvantage of using an electron microscope.
Answer:
cost, size, maintenance, researcher training and image artifactsExplanation:
what type of cell is a nucleus
Answer:
nucleus is a eukaryotic cell
