The first trees to develop the nodule system were legume trees, specifically those belonging to the family Fabaceae.
The nodule system refers to the formation of root nodules, which are specialized structures that house nitrogen-fixing bacteria. This symbiotic relationship allows legume trees to convert atmospheric nitrogen into a usable form for plant growth.
The first trees to develop the nodule system were likely leguminous trees such as acacias, alders, and eucalyptus. These trees have a symbiotic relationship with nitrogen-fixing bacteria in their roots, which form nodules that provide the tree with a source of nitrogen. This adaptation allowed these trees to thrive in nutrient-poor soils and was a significant factor in the evolution of many modern ecosystems.
To know more about nodule system click here:
https://brainly.com/question/26848273
#SPJ11
Which of the statements are true about the eukaryotic cell cycle? Select all that apply. The M phase consists of two events: prophase and cytokinesis. Cells that have fully differentiated and no longer divide are said to be in G0 phase. There are two stages to the cell cycle: M phase and interphase. There are three phases of interphase called: G1 phase, S phase and G2 phase. Interphase is typically the shortest of the two stages of the cell cycle.
The statements that are true about the eukaryotic cell cycle are:
Cells that have fully differentiated and no longer divide are said to be in G0 phase.There are three phases of interphase called: G1 phase, S phase, and G2 phase.The eukaryotic cell cycle consists of various stages and events. Here are the correct statements:
Cells that have fully differentiated and no longer divide are said to be in G0 phase. G0 phase represents a non-dividing state where cells have exited the cell cycle and are in a quiescent stage.
There are three phases of interphase called: G1 phase, S phase, and G2 phase. Interphase is the longest stage of the cell cycle, where the cell prepares for division. G1 phase involves cell growth and preparation for DNA replication, S phase is the synthesis phase where DNA replication occurs, and G2 phase is the preparation for cell division.
To know more about eukaryotic cell cycle
brainly.com/question/1600289
#SPJ11
the concentration of carbon dioxide in the atmosphere has been increasing for many years, how might this increase affect photosynthesis
Answer:
the answer is
Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.Increasing the light intensity increases the rate of photosynthesis, until some other factor a limiting factor becomes in short supply. At very high light intensities,photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature.
Explanation:
This equation represents a biological process. In which organelle is this process completed?
C6H12O6 + O2 --> CO2 + H20 + ATP
Cell membranes
Mitochondria
Chloroplasts
Ribosomes
Answer:
Mitochondria
Explanation:
That equation is for Cellular Respiration and it takes place in the Mitochondria in the Cytoplasm
Which of the following is a way that new DNA can be introduced to bacteria?
A. It can be absorbed.
B. It can be injected by a virus.
C. It can be injected with a needle.
D. It can be injected into a food source and eaten by the bacteria.
Answer:2
Explanation:d
Explanation:
a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.
Which is the most accurate statement with regard to the relationship between the neutral stimulus and conditioned stimulus in classical conditioning? They are the same stimulus. They are distinguished by the different responses they produce. They both produce responses without learning occurring, They produce very different responses at different times.
The most accurate statement with regard to the relationship between the neutral stimulus and conditioned stimulus in classical conditioning is that they produce very different responses at different times.so option D is correct.
The neutral encouragement is a encouragement that doesn't naturally produce a particular response. The conditioned encouragement, on the other hand, is a encouragement that regularly produces a particular response. In classical exertion, the neutral encouragement is associated with the conditioned encouragement, which also produces the asked response.
The neutral encouragement doesn't naturally produce a response and doesn't evoke a response until it has been associated with the conditioned encouragement. The conditioned encouragement, still, produces a response as soon as it's presented, indeed before the organism has had a chance to learn the association,
To know more about neutral stimulus visit:
https://brainly.com/question/30051586
#SPJ4
What part of the reproductive system is highlighted below?
• A. Urethra
• B. Seminal vesicles
O c. Epididymus
• D. Vas deferens
How are humans impacting the carbon cycle positively?
You were looking at a cell under a microscope. It had a large central vacuole, a nucleus, a cell wall and mitochondria. You concluded that it is a:
Responses
Eukaryotic animal cell
Eukaryotic animal cell
Hybrid of a plant and animal cell
Hybrid of a plant and animal cell
Eukaryotic plant cell
Eukaryotic plant cell
Prokaryotic bacterial cell
On the presence of a large central vacuole, a nucleus, a cell wall, and mitochondria, the cell you were looking at is most likely a eukaryotic plant cell. Option C is correct.
Eukaryotic cells are more complex and larger than prokaryotic cells, which lack a nucleus and most organelles. Eukaryotic cells are found in animals, plants, fungi, and protists.
However, Eukaryotic cells have a nucleus, membrane-bound organelles such as mitochondria, and a cytoskeleton. Plant cells, in addition to these organelles, also have a cell wall, a large central vacuole, and chloroplasts for photosynthesis. The presence of a large central vacuole, a cell wall, and mitochondria in the cell you observed suggest that it is a plant cell.
Hence, C. is the correct option.
To know more about Eukaryotic cells here
https://brainly.com/question/7153285
#SPJ1
--The given question is incomplete, the complete question is
"You were looking at a cell under a microscope. It had a large central vacuole, a nucleus, a cell wall and mitochondria. You concluded that it is a: Responses A) Eukaryotic animal cell B) Hybrid of a plant and animal cell C) Eukaryotic plant cell D) Prokaryotic bacterial cell."--
After earthquakes, hot springs sometimes stop bubbling, and new hot springs form. Why might this be
Answer:
The magma moved. The crystaline water is no longer being heated by the magma so it stops being a hot spring.
Answer:
The magma melts
Explanation:
Why might a person who has skin cancer later
develop a tumour on her lungs?
Answer: The cancer of the skin metastasizes into the lymph joints (spreads), and they run everywhere in the body, dropping bad cells when they go. the lungs are super vascular (carry a lot of blood flow), and so is the organ. Therefore, they are favorite places for the cancer cells to end up and grow.
Explanation: hoped this helped:)) you can just search it up
The type of bone fracture characterized by the broken ends of the bone protruding through the skin is known as a(n)
a. closed (simple) fracture
b. open (compound) fracture
c. impacted fracture
d. Pott's fracture
e. greenstick fracture
The type of bone fracture characterized by the broken ends of the bone protruding through the skin is known as an open (compound) fracture, which is option b.
An open fracture occurs when the broken ends of the bone pierce through the skin, creating an external wound that communicates with the fracture. This can increase the risk of infection and requires urgent medical attention to prevent complications.
In contrast, a closed (simple) fracture is a type of bone fracture where the bone is broken but does not pierce through the skin. Instead, the broken bone ends remain beneath the skin.
An impacted fracture is a type of fracture where the broken ends of the bone are driven into each other, creating compression and shortening of the bone. This can occur when a bone is subjected to a high amount of force, such as in a car accident.
Pott's fracture is a specific type of ankle fracture that involves the distal fibula, which is the smaller bone in the lower leg. This type of fracture occurs when the ankle is forcefully twisted or turned, resulting in a break in the fibula bone.
Finally, a greenstick fracture is a type of fracture that occurs in children and is characterized by an incomplete break in the bone. In this type of fracture, the bone bends and partially breaks, rather than completely breaking.
So, the open (compound) fracture, is correct alternative. (option b)
To know more about Bone fracture here:
https://brainly.com/question/13577068#
#SPJ11
Which is a common practice for farmers to yield higher crop production?
A) overplowing mixes the nutrients in the soil
B) consistently plant the same crop every year
C) allow later-successional growth to replace nutrients
D) keep the area planted with early-successional species
Answer:
D) keep the area planted with early-successional species
Explanation:
Answer:
D) keep the area planted with early-successional species
Explanation:
got it right on edge
Of two stars of spectral class B5, one has broad hydrogen lines and the other has narrow hydrogen lines. How do these stars differ physically?
The physical difference between the two stars of spectral class B5 is that the star with broad hydrogen lines has a higher temperature and faster rotation compared to the star with narrow hydrogen lines.
The width of the hydrogen lines in a star's spectrum provides information about its physical properties. In this case, the star with broad hydrogen lines indicates a higher temperature and faster rotation compared to the star with narrow hydrogen lines.
The broadening of spectral lines is primarily caused by two factors: temperature and rotation. Higher temperatures lead to increased thermal motion of particles in the star, resulting in broader spectral lines. Therefore, the star with broad hydrogen lines has a higher temperature than the star with narrow hydrogen lines.
Additionally, the rotation of a star can also affect the broadening of spectral lines. A faster rotation produces a larger Doppler shift, which leads to broader lines in the spectrum. Therefore, the star with broad hydrogen lines is likely rotating at a higher speed than the star with narrow hydrogen lines.
Overall, the presence of broad and narrow hydrogen lines in the spectra of these B5 stars suggests differences in temperature and rotation, indicating variations in their physical characteristics.
Learn more about spectrum
https://brainly.com/question/4901067
#SPJ11
Please Answer These Math Questions LOT OF QUESTIONS LOTS OF POINTS (Questions in picture)
Answer:
this is not science questions it is of maths
Answer:
j
Explanation:
Erik, a forensic technician, is called to a crime scene to determine if there are any fingerprints. He uses the process of photoluminescence to find the evidence. Which scientific field did he use?.
Erik, a forensic technician, is called to a crime scene to determine if there are any fingerprints. He uses the process of photoluminescence to find the evidence. he did this by using Chemistry field.
Usually, a close visual inspection of the crime scene is used to check for the presence of blood. However, it's possible that there is blood present in levels that are too small to notice with the unassisted eye or that blood at the site has already been "cleaned up" before the crime scene team arrived.
Forensic techniques include DNA analysis, fingerprinting, voice recognition, handwriting analysis, ballistics, autopsy, and others to determine the cause of a crime or death. In forensic analytical techniques, the most significant fields of physical, life, and materials science are applied.
To know more about forensic science, click here,
brainly.com/question/3049628
#SPJ4
An insertion sequence contains a large deletion in its transposase gene. Under what circumstances would this insertion sequence be able to transpose?.
(3) "There is another transposable element of the same type present in the cell and it expresses a functional transposable enzyme." is the circumstance that this insertion sequence would be able to transpose.
Bacterial insertion sequence is a type of straightforward transposon. DNA segments known as transposons have the capacity to relocate throughout the genome. Only the genes necessary for their transposition are carried by insertion sequences.
The protein needed for the transposition of bacterial insertion sequences is called transposase. The binding sites for this protein are the brief repetitions found at both ends of the bacterial transposons.
Transposase's primary job is to make staggered incisions in the target DNA region where the insertion sequence will be put. The target DNA has a gap created by the transposase cut, which is where the bacterial transposons are placed.
It wouldn't be able to transpose if a deletion mutation eliminated the transposase gene from the insertion sequence.
Here is another question with an answer similar to this about insertion sequence: https://brainly.com/question/28945565
#SPJ4
Question correction:
An insertion sequence contains a large deletion in its transposase gene. Under what circumstances would this insertion sequence be able to transpose?
There is another transposable element that produces reverse transcriptase present in the cell.The transposable element is transcribed, and the host cell also expresses a functional reverse transcriptase that then makes a DNA copy.There is another transposable element of the same type present in the cell and it expresses a functional transposase enzyme.This transposable element can never transpose due to the deletion in its transposase gene.The insertion sequence will be able to transpose if it loses its inverted repeats.the energy plants gain through photosynthesis is stored in
The process is carried out by plants, algae, and some types of bacteria, which capture energy from sunlight to produce oxygen (O2) and chemical energy stored in glucose (a sugar
In a popular movie, a salt water fish jumped into a freshwater drain to be reunited with his father.
Using your knowledge of osmosis and solutions what would have really happened to the cells in the
fish?
А
The cells would have expanded and burst because of water entering the cells.
B
The cells would have shrunk as water left the cells.
с C
The cells would have remained the same as the freshwater is isotonic.
D
The cells would have become freshwater cells until reaching the ocean.
Answer:
A
Explanation:
fresh water is hypotonic to the fish cell,that means water will diffuse into fish cells by osmosis because a hypotonic solution contains low solute concentration.
In the development of C. elegans, an embryo of 1090 cells then loses 131 cells due to what process? o apoptosis O degradation O migration O inhibitio
The loss of 131 cells in the development of C. elegans is due to the process of apoptosis, a programmed cell death mechanism.
The process by which an embryo of C. elegans loses 131 cells is apoptosis. Apoptosis is a programmed cell death mechanism that occurs naturally during development to eliminate unnecessary or excess cells.
In the case of C. elegans, the removal of specific cells through apoptosis is a crucial part of its normal development and results in the precise formation of its adult body structure.
Learn more about the development of C. elegans at
https://brainly.com/question/30841288
#SPJ4
What is active transport?
A. an organism's way of getting materials to its
community
B. a cell's way of transporting materials
C. the nucleus's way of transporting genetic
information
D. when peroxisomes moving materials in a cell
Active transport is one type of transport used by cells to move molecules from one side to the other of the cell membrane. Option B. a cell's way of transporting materials
What is active transport?Active transport is one of the three cellular transmembrane transports. The other two are passive transport and simple diffussion.
Active transport acts against the electrochemical gradient, so it does need the energy to transport substances.
It carries molecules from a low concentration side of the membrane to a high concentration side.
The used energy comes from ATP (Na-K bomb) or the membrane's electric potential.
Carrier proteins are involved in active transport.
Option B. a cell's way of transporting materials
You can learn more about active transport at
https://brainly.com/question/29759743
#SPJ1
According to one anti-enhancement argument, genetic enhancements threaten to change human nature and that is a serious moral concern because it is:
Unnecessary.
Unnatural.
Unfair.
Undermining of our genetic redundancy.
Underwhelming.
According to one anti-enhancement argument, genetic enhancements are seen as a serious moral concern because they are considered "unnatural."
The argument suggests that altering human nature through genetic enhancements goes against the natural order of things and disrupts the inherent essence of what it means to be human.
Advocates of this argument contend that human nature is defined by a combination of genetic inheritance and environmental factors, and any intentional alteration of the genetic code undermines this delicate balance.
They argue that human beings should accept themselves as they are, embracing their inherent strengths and weaknesses, rather than seeking to artificially enhance certain traits or abilities.
This concern stems from the belief that genetic enhancements may lead to a future society where individuals are no longer equal, with disparities in physical and cognitive capabilities becoming more pronounced.
It is argued that this would create an unfair advantage for those who can afford or access genetic enhancements, perpetuating societal inequalities.
However, it is important to note that these arguments are not universally accepted, and there are alternative viewpoints that support the ethical use of genetic enhancements to improve the human condition. Therefore, the correct answer is Unnatural.
For more such answers on genetic engineering
https://brainly.com/question/2780091
#SPJ11
which of the following is not an important biological function of lipids? which of the following is not an important biological function of lipids? insulation regulation of growth and development energy storage protection of internal organs and tissues all of these choices are functions of lipids.
Option 5 is the correct answer. All the listed options are important biological functions of lipids.
Lipids are a type of organic molecule that is made up of fatty acids and glycerol. They are hydrophobic, meaning they do not mix with water and are an important part of cell membranes. Lipids also play a crucial role in storing energy, as they can be broken down and used as a source of energy when needed.
There are several different types of lipids, including triglycerides, phospholipids, and steroids. Each type has a different structure and function in the body. Triglycerides are the most common type of lipid and are used for energy storage. Phospholipids are a major component of cell membranes and help to regulate what can enter and exit the cell. Steroids, such as cholesterol, are important for maintaining the structure of cell membranes and are also used to produce hormones.
Your question seems to be formatted wrong. The correct format should be as follows:
Which of the following is not an important biological function of lipids?
insulation regulation of growth and development energy storage protection of internal organs and tissues all of these choices are functions of lipids.Learn more about lipids at https://brainly.com/question/28437379
#SPJ11
Warren is developing a model for tracking carbon atoms within an ecosystem and its environment. warren knows that plants perform both photosynthesis and cellular respiration. does the number of plants in the ecosystem change the effect of the ecosystem on carbon dioxide levels in the atmosphere?
a. no. photosynthesis and cellular respiration do not involve carbon dioxide.
b. no. in plants, photosynthesis adds as much carbon dioxide to the atmosphere as cellular respiration removes.
c. yes, because photosynthesis removes carbon dioxide from the atmosphere and stores the carbon in plant tissues.
d. yes, because photosynthesis releases more carbon dioxide into the atmosphere than cellular respiration removes.
e. yes, but only if large plants are included in the model, because algae and other small photosynthetic organisms do not take up carbon dioxide.
The correct answer is (C). Yes, because photosynthesis removes carbon dioxide from the atmosphere and stores the carbon in plant tissues.
The process by which green plants, algae, and some bacteria transform water, carbon dioxide, and sunlight into glucose (a type of sugar) and oxygen is known as photosynthesis. This essential organic cycle upholds life on the planet and assumes a significant part in Earth's environments. The pigments, basically chlorophylls found in chloroplasts of photosynthetic creatures, have been utilized by plants and others to pull energy from daylight during photosynthesis. This energy then turns carbon dioxide and water into glucose. This essential organic cycle upholds life on the planet and assumes a significant part in Earth's environments. The pigments, basically chlorophylls found in chloroplasts of photosynthetic creatures, have been utilized by plants and others to pull energy from daylight during photosynthesis. This energy then turns carbon dioxide and water into glucose.
The required chemical equation for the photosynthesis reaction is:
6 CO2 + sunlight + 6 H2O → C6H12O6 (glucose) + 6 O2
Learn more about chloroplasts:
https://brainly.com/question/1741612
#SPJ11
After the supernova in a star’s life cycle, what else is formed in addition to a nebula?
red giant or protostar
neutron star or red giant
protostar or black hole
black hole or neutron star
Answer:
D. Black Holes and Neutron Stars
Explanation:
The core of a star can survive a supernova. It can become something diffrent.
How many chromatids does a human somatic cell contain after interphase and just prior to mitosis?.
Answer:
Explanation:
92
examine the table, if a mutation occurred in the indicated region, which areas would you expect the Pitx1 gene.” check all that apply
Mutation result in changes in the nucleotides sequence in genes, so a mutation of the Pitx1 gene will change the nucleotide sequence in the gene.
What is a mutation?A mutation refers to a change that occurs in the sequence of nucleotides in DNA molecules.
Since gene are regions of a DNA molecule that codes for a protein or gene product, a mutation will affect the gene product.
Therefore, for the Pitx1 gene, a mutation will change the nucleotide sequence in the gene.
Learn more about mutations at: https://brainly.com/question/2570717
what is true of a population
Answer: all members live at the same time all members live in the same area and all members are the same species
Explanation: trust
help with this question 20pts
6 (A)=(x)sebaceous gland
help pleaseeeeeeee
i attached a image
Answer:
I think it is the grasshopper.
Answer:
Based on the food chain, we cannot tell for sure
Explanation:
You can only identify omnivores with a food web. In food chains it only shows one source of food for each animal, so we wouldn't know if one of the animals eats both autotrophs and heterotrophs.
Which is the correct ratio for SINE?
Answer:
opposite/hypotenuse
Explanation:
SOHCAHTOA method, shows that sine is Opposite Hypotenuse.