the so-called fern allies (relatives of ferns) include several phyla of plants related to ferns. which of the following belongs to this group?
Answers
The phyla of plants related to ferns are called "fern allies" which is similar to a fern but is not a fern. The following belongs to this group: Lycopodium, Selaginella, Equisetum, and Psilotum are some of the groups of plants that belong to the fern allies.What are fern allies?Fern allies refer to the group of plants that are closely related to ferns.
Fern allies have many common characteristics with ferns, such as the production of spores and having a similar life cycle. Fern allies are vascular plants that reproduce via spores. They have sporophytes, which produce spores that are dispersed through the wind.
These spores are essential for their survival, and they can form gametophytes that are either male or female. Gametophytes produce sperm that fertilize eggs, forming sporophytes. In summary, Lycopodium, Selaginella, Equisetum, and Psilotum are some of the groups of plants that belong to the fern allies.
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Related Questions
the corpus luteum appears: group of answer choices after ovulation. prior to ovulation. only during pregnancy. in the prostate gland. in the uterine lining.
Answers
The corpus luteum appears (a) after ovulation. Ovulation is the process in which a mature egg is released from the ovary into the fallopian tube, marking the fertile period of a woman's menstrual cycle.
Following ovulation, the ruptured follicle in the ovary transforms into the corpus luteum. The corpus luteum is a temporary endocrine structure that secretes hormones, primarily progesterone, which is essential for the preparation and maintenance of the uterine lining in anticipation of pregnancy. If fertilization occurs, the corpus luteum continues to produce progesterone to support the early stages of pregnancy.
However, if fertilization does not occur, the corpus luteum undergoes regression, leading to a decrease in hormone production, and eventually becomes a scar-like tissue called the corpus albicans. Thus, the appearance of the corpus luteum is a critical event in the female reproductive system that occurs after ovulation and plays a vital role in fertility and early pregnancy.
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Arrange these steps in the nitrogen cycle in the correct order to explain how nitrogen from the atmosphere cycles through the other spheres on Earth.
biosphere
dead organic mater
nitrogen fixation
denitrification
ammonification
nitrification – yielding nitrate
nitrification – yielding nitrite
Answers
The correct order for the steps in the nitrogen cycle is:
Nitrogen fixation,Ammonification,Nitrification – yielding nitrite,Nitrification – yielding nitrate,Biosphere,dead organic matter, andDenitrification.What is the nitrogen cycle?The nitrogen cycle is a repeating cycle of processes during which nitrogen moves through both living and non-living things: the atmosphere, soil, water, plants, animals and bacteria.
In order to move through the different parts of the cycle, nitrogen must change forms.
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pleaseeee help im begging u. this is very hard. answer in complete sentences pleaseeee. i am crying i dont want to fail
Answers
Answer:
The map uses color to indicate where a country falls compared to the world average. Green shows that a country is below the average ecological footprint size, whilst red shows countries that are above it.
What genotypes would you expect in future offspring from this marriage? select all that apply. ii i a i i b i i a i a i b i b i a i b
Answers
The genotyoe of the offspring can be obtained from the genotype of the parents using a punnet square.
What is genotype?The term genotype refers to the sum total of the genes that an organism receieves from its parents. We have to note that genes often occur in pairs called alleles. The combination of gene alleles controls the expressed trait in the organism.
This question is incomplete. However, we do know that the genotyoe of the offspring can be obtained from the genotype of the parents using a punnet square.
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Two processes that take place within a cell are shown here. Which of these statements correctly identify the processes and their
outcomes? Select ALL that apply.
A)
Both processes increase genetic variation
B)
Both processes can produce new phenotypes in an organism
Process Il occurs randomly while process I is predictable.
D)
Process I is beneficial to the organism while process Il is detrimental
E)
Only process I can provide the basis for natural selection acting on
phenotypes.
Answers
Answer: A and B
Explanation:
Two processes that take place within a cell are shown here are Process I is beneficial to the organism while process Il is detrimental.
What is genetic variation?
The genetic variation is thje variation modified by the genes and cause changes by the hereditary variation.
In the above image it shows the cause of mutations and DNA fails to copy accurately thus it random, and common. The procces 1 is meiosis and process 2 is the mutation as that is the failure of DNA to copy.
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Found in both plant cells and animal cells, the________________surrounds and protects the cell, and allows certain chemicals to enter and exit the cell.
cell wall
cell membrane
cytoplasm
(This is 7th grade science).
Answers
Answer:
cell wall
Explanation:
The cell wall is the protective, semi-permeable outer layer of a plant cell
Answer:
cell membrane
Explanation:
cell membrane found in both plant cells and animal cells.
It is the outermost part of animalcell and second layer of plant cells.
Hope this answer help you
How does Leigh syndrome affect cellular respiration?
Answers
Leigh Syndrome is a rare genetic disorder that affects the central nervous system and its associated organs, including the brain, muscles, and heart.
Specifically, Leigh Syndrome impairs the ability of mitochondria to produce ATP, the energy source for most cells. This results in an energy deficit, leading to decreased energy production, which ultimately affects various cellular processes and can cause cell death.
It is caused by a malfunction in the cells responsible for energy production, such as those involved in cellular respiration.
It is caused by mutations in genes that are responsible for the production of proteins that are essential for cellular respiration. Cellular respiration is the process by which cells produce energy in the form of ATP (adenosine triphosphate) from the breakdown of glucose.
The mutations that cause Leigh syndrome disrupt the function of the mitochondria, the organelles that are responsible for cellular respiration. As a result, the cells are not able to produce enough ATP to meet their energy needs. This leads to a wide range of symptoms, including muscle weakness, movement disorders, and difficulty breathing.
In addition to affecting the central nervous system, Leigh syndrome can also affect other organs and tissues, such as the heart, liver, and kidneys. The severity of the disorder can vary from person to person, and there is currently no cure for Leigh syndrome.
Treatment typically focuses on managing the symptoms and providing supportive care to help improve the quality of life for those affected by the disorder.
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Which of the following explains why fracking is dangerous for natural ecosystems? *
1.It can lead to oil being destroyed so it cannot be used by humans.
2.It destroys habitats leading to loss of biodiversity.
3.It directly releases CFCs which destroy the ozone layer.
4.It is not dangerous for natural ecosystems.
Answers
Answer:99
Explanation:Magical Glowing Water
Last summer, my family and I took a trip to Jamaica. My favorite part of the trip was when we went to a place called the Luminous Lagoon. We ate dinner and waited for the sun to go down. Then we boarded a boat and went out into the lagoon. That’s when the magic started.
At first we could not see very much in the darkness except for the stars in the sky. After a few minutes, however, I noticed some fish swimming in the water. They didn’t look like ordinary fish. These fish were glowing! Our guide explained that the glow came from tiny creatures in the water called dinoflagellates. These little animals are not visible to us, but their bodies produce light using something called bioluminescence, just like fireflies. There are so many of these creatures in Luminous Lagoon that the water around them seems to glow.
After our guide explained these facts to us, he told us to put our hands in the water. I was not sure if it would work, but I tried it. When I did, my hand looked like it belonged to a superhero! It was glowing bright blue. I hope someday I get to return to the Luminous Lagoon. The lights in the water were much more entertaining than the ones in the sky.
Problem:
audio
The Greek prefix dinos- means “whirling” and the Latin root word flagellum means “whip”. What does dinoflagellate most likely mean as it is used in the passage?
audio
the production of light from an organism’s body
audio
the study of creatures that live in the ocean
audio
to move around underwater water like a fish
audio
an organism with a whip-like part it uses to move around in the water
help please
Determine whether the following species are extinct, endangered, or threatened.
The Tasmanian tiger, the largest known carnivorous marsupial, was wiped out of the wild due to constant hunting:
The Amur leopard is now gone from most of its original habitat due to human activity. Only twenty to thirty Amur leopards remain in the wild:
Western Lowland gorilla populations have dropped sixty percent in the past twenty-five years due to poaching, habitat loss, and, mainly, disease. Their numbers are expected to keep dropping, and the species could soon disappear:
The Eastern gemfish population has declined due to commercial fishing. New protection efforts seem to be helping the population slowly recover:
The golden toad was forced from its breeding sites when erratic weather caused pools to dry up. No frogs have been found in over two decades:
multiple choice answer options: extinct species, endangered species, threatened species
Please help me its for my ingenuity class
Answers
Answer:
Extinct
Endangered
Endangered
Threatened
Extinct
Explanation:
why does ecology need to study the biotic and abiotic elements?(1 point) responses it is studying a species. it is studying a species. it is studying the community. it is studying the community. it is studying a population. it is studying a population. it is studying the ecosystem.
Answers
Ecology needs to study the biotic and abiotic elements because it is studying the ecosystem.
Thus, the correct answer is It is studying the ecosystem (D).
Ecology is а brаnch of science, including humаn science, populаtion, community, ecosystem аnd biosphere. Ecology is the study of orgаnisms, the environment аnd how the orgаnisms interаct with eаch other аnd their environment. It is studied аt vаrious levels, such аs orgаnism, populаtion, community, biosphere аnd ecosystem.
Аn ecologist’s primаry goаl is to improve their understаnding of life processes, аdаptаtions аnd hаbitаts, interаctions аnd biodiversity of orgаnisms. The mаin аim of ecology is to understаnd the distribution of biotic аnd аbiotic fаctors of living things in the environment. The biotic аnd аbiotic fаctors include the living аnd non-living fаctors аnd their interаction with the environment.
Your options aren't well arranged, but most probably your options were
A. it is studying a species.
B. it is studying the community.
C. it is studying a population.
D it is studying the ecosystem.
Thus. D is the correct answer.
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Which molecules require active transport to enter or exit the cell?
Answers
Answer:
a
Explanation:
Which of the following is not a reason that analyzing and collecting weather records is important?
A: Weather data can be collected to make climate maps.
B: Predicting future climate events, such as droughts, can be easier.
C: Collecting weather records can help scientists see patterns in the weather.
D: Collecting weather data helps geologists locate land that has been weathered.
I couldn't find a subject to do so I chose biology.
Answers
Answer:
Collecting weather data helps geologists locate land that has been weathered is not a reason for analyzing and collecting weather maps.
Explanation:
A is not correct because the climate maps are based on the analyzing and collecting of weather records.
B is not correct because this is based on large scale and long term examination of weather patterns, especially ones that repeat themselves.
C is not correct because the analyzing and collecting of weather records is the best way in which scientists can see the weather patterns.
D is correct because the weather records don't help the geologists to locate weathered land, but instead, they need to go out on terrain and see that or can make rough predictions by examining the human actions and the topography of a place.
What is produced at divergent plate boundaries?
a. Mountains
b. Oceans
c. New seafloor
d. Earthquakes
Answers
Answer:
new seafloor
Explanation:
Why are viruses considered to be nonliving?
A)They cannot live outside a host
B)They do not respond to their environment
C)They cannot use energy
D) They have no genetic material
Answers
Answer:
it should be A if im correct.
b) State any four differences between animal and plant cells
Answers
Answer:
There are many differences between animals and plant cells. Some are structural to the way animals and plant cells function. Besides strucutre, what plant cells need as opposed to animal cells is different. Let me know what you come up with and I will gadly help you figure it out.
Explanation:
Answer:
Plant cells have a cell wall, but animals cells do not.Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food. Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.
Explanation:
list 5 factors that can change the flow of water through an ecosystem
Answers
Answer:
°Change in the Habitat
°Change in Climate
°Change in the structure of water sources
Increase in Pollution
°Change in temperature
Explanation:
Change in habitat is the change in the local environment conditions in which organisms lives. It may occur naturally or due to human actions. Though, it can affect food supply, migration patterns, stress, breeding cycles and diversity of wildlife population.
1. Define the term lichen.
2. State and explain the organisms that compose a Lichen.
3. Explain how Lichens are used to establish a community or an ecosystem.
Answers
Answer:
Lichens are bizarre organisms and no two are alike. Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies.
Explanation:
Hope it helps
which fatty acid is required for synthesis of phospholipids?
Answers
Answer:
The synthesis of membrane phospholipids begins with the phospholipid PA, which is produced from glycerol-3-phosphate or dihydroxyacetone phosphate after fatty acyl coenzyme A (CoA)-dependent reactions that are catalyzed by the SCT1- and GPT2-encoded glycerol-3-phosphate acyltransferases
Explanation:
Model Develop a shortlist of systems that you think biologists would want to model. Choose one system from your list and develop a plan for how you would model it.
Answers
Answer:
The mathematical model
Explanation:
it is because they will model the airplane the way they solve difficult tasks in math
2. What type of front is represented by the third symbol in the image?
O A. Cold front
OB Warm front
O C. Stationary front
OD. Occluded front
Answers
Hope this helped !
Which element below has properties of both metals and nonmetals? zinc aluminum copper boron
Answers
Answer:
Boron
Explanation:
The element that has properties of both metals and nonmetals is known as boron. Thus, the correct option for this question is D.
What are the properties of metals?The properties of metals are as follows:
Metals can be hammered into thin sheets. It means they possess the property of malleability.They are ductile.Metals are good conductors of heat and electricity.Metals are lustrous which means they have a shiny appearance.Metals have high tensile strength.Metals are sonorous.Metals are hard.The element "boron" is classified as a metalloid, i.e. they possess properties of both metals and nonmetals: it conducts electricity at high temperatures; but at room temperature, it is an insulator.
Metalloids are defined as elements that show properties of both metals and non-metals. There are 7 metalloids in the periodic table. They are Boron (B), Silicon (Si), Germanium (Ge), Arsenic (As), Antimony (Sb), Tellurium (Te), and Polonium (Po).
Therefore, the element that has properties of both metals and nonmetals is known as boron. Thus, the correct option for this question is D.
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how are ferns better adapted to terrestrial life than mosses
Answers
Ferns are better adapted to terrestrial life than mosses due to their well-developed vascular system, roots, efficient leaf structure for photosynthesis, and specialized spore production for effective dispersal and viability.
Ferns are better adapted to terrestrial life than mosses for several reasons:
1. Vascular system: Ferns have a well-developed vascular system with xylem and phloem, which allows them to transport water, minerals, and nutrients efficiently throughout the plant. This helps them grow taller and thrive in a variety of environments. Mosses, on the other hand, lack a vascular system, limiting their size and restricting them to moist environments.
2. Roots: Ferns have true roots that anchor them to the ground and absorb water and nutrients from the soil. Mosses lack true roots and instead have rhizoids, which are less efficient at absorbing nutrients.
3. Leaves: Ferns have true leaves, called fronds, that can photosynthesize more effectively, allowing them to harness more energy from the sun. Mosses have simple, small leaves that are less efficient at photosynthesis.
4. Reproduction: Ferns produce spores in specialized structures called sporangia, which are protected by a layer of cells. This helps their spores stay viable for longer periods and disperse more effectively. Mosses release their spores directly into the environment, making them more vulnerable to drying out or not reaching a suitable habitat.
These adaptations help ferns survive and thrive in terrestrial environments more successfully than mosses.
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Tonicity scenario biology
Answers
In the given scenario, the solution's Tonicity scenarios (6,9,13,14) are Hypertonic, (7,15) are Isotonic, and (8,10,11,12) are Hypotonic.
What are Hypertonic, Hypotonic, and Isotonic solutions?The concentration of a solution in relation to another solution is referred to as tonicity. The quantity of solutes dissolved in a solution is referred to as concentration.If the solute concentration is lower than that of another solution the solution is Hypotonic. Water molecules leave the cell from the outside in this solution.If the solute concentration is higher than that of another solution then the solution is Hypertonic. So, water molecules enter the cell from the outside in this solution.Isotonic solution is the one that has the same solute concentration as another solution.In a hypotonic solution, cells will expand, whereas, in a hypertonic one, they will shrink.6. Hypertonic
7. Isotonic
8. Hypotonic
9. Hypertonic
10. Hypotonic
11. Hypotonic
12. Hypotonic
13. Hypertonic
14. Hypertonic
15. Isotonic
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A population of plants contains individuals with flowers that are yellow or red.
Over time, the population changes so that most individuals have orange
flowers. Which term describes the process that has occurred in this
population?
OA. Directional selection
B. Stabilizing selection
OC. Genetic drift
D. Disruptive selection
Answers
Answer:
Explanation:
Yes, It can be happned
The population change so that most of the individuals have orange flowers is an example of directional selection. Thus, the correct option is A.
What is Directional stabilization?In population genetics, the directional selection is a mode of negative natural selection through which an extreme phenotype is favored over the other phenotypes in a population, that causes the allele frequency of that particular allele to shift over time in the direction of that particular phenotype.
A population which changes over time so that most of the individuals have orange flowers is an example of directional stabilization.
Therefore, the correct option is A.
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role of the respiratory system in acid-base balance of blood 13. define buffer. 14. what buffer system operates in blood plasma?
Answers
The respiratory system plays an important role in maintaining the acid-base balance/buffer of blood by regulating the levels of carbon dioxide (CO2) and bicarbonate (HCO3-) ions in the body.
When carbon dioxide is absorbed into the bloodstream, it combines with water to generate carbonic acid (H2CO3), which then breaks down into hydrogen ions (H+) and bicarbonate ions. (HCO3-). Because this reaction is reversible, it can change based on the body's concentrations of carbon dioxide and bicarbonate ions. The respiratory system assists in controlling the quantities of carbonic acid and bicarbonate ions in the body, which in turn aids in maintaining the pH of the blood within a specific range.
By absorbing or releasing hydrogen ions (H+) in reaction to variations in acidity, a buffer is a material that helps a solution resist pH changes.
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All animals need ______ to convert energy from food. We get this oxygen from the air that we breathe. In order to get the oxygen into the blood where it can be transported to the rest of the body, the air travels through a system of organs called the ______ system. When you _____, air enters the body through the _______. From there it passes through the ______, and then into the ______, where the ______ is located (which prevents food from entering this tube).
Answers
Answer:
oxygen, respiratory, breathe, nose, trachea, esophagus, anus
Explanation:
Examine the graph and choose which of the following analyses are correct (select all that are correct): A: More of Calix’s cells were added to the cytometer than the control cat’s cells B: The same number of cells from Calix and the control cat were added to the cytometer C: Calix’s cells have less DNA in them compared to the cells of the control cat D: Calix’s cells have more DNA in them compared to the cells of the control cat
Answers
Answer:
B. and D.
Explanation:
Answer: B: The same number of cells from Calix and the control cat were added to the cytometer.
D: Calix’s cells have more DNA in them compared to the cells of the control cat.
Explanation:
18-32% of normal skin cells have cancer driver mutations at a density of ~140 mutations per square meter
Answers
According to the given information, 18-32% of normal skin cells have cancer driver mutations. These mutations occur at a density of approximately 140 mutations per square meter.
This means that a significant portion of normal skin cells carry mutations that can drive the development of cancer. The range of 18-32% indicates that the percentage of cells with cancer driver mutations can vary within this range.
Additionally, the density of approximately 140 mutations per square meter implies that these mutations are relatively common within the affected area. This density measurement provides an understanding of how widespread these mutations are across a given area of skin.
It is important to note that cancer driver mutations are genetic changes that can promote the growth of cancer cells. They are different from random mutations that can occur naturally in cells.
In summary, the given information suggests that a substantial proportion of normal skin cells possess cancer driver mutations, with an approximate density of 140 mutations per square meter. These mutations play a role in the development and progression of cancer.
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Which of the following most directly influences a measurable outcome in an experiment. An independent variable A variable hypothesis A dependent variable Previous information
Answers
Answer:
An independent variable
Explanation:
An experiment consists of two variables viz: independent and dependent variable. Independent variable is the variable that the experimenter controls in order to influence or effect a change in the measurable variable called dependent variable. As the name suggests, the dependent variable is dependent on the independent variable.
For example, a scientist is trying to conduct an experiment on how the caffeine level in different types of drink affects the time of sleep in individuals. The independent variable in this experiment is the TYPE OF DRINKS because it is the variable controlled by the experimenter in order to influence the time of sleep (measurable outcome).
Answer:
B.
Explanation:
True or False?
BOTH food chains and food webs are used to track mass AND energy through an ecosystem.
Answers
Answer:
I think true
Explanation: