Because in Mount St. Helen some seeds and species were left and some turned back on their time causing the ecosystem of the area develop again.
Explanation:
Succession is a process in which change in a population or ecological community occurs due to disturbances or new colonization at a new habitat occurs such as Mount St. Helen's volcanic eruption.
The Mount St Helen's volcanic witnessed the major geological changes in 20th century. The full-grown forest got destroyed because of this and causing loss to flora and fauna.
There were species which completely perished and others survived.
The hibernating burrowing nocturnal animals were hiding deep in the furrow and survived the volcano.
The spring arrived late, it was another advantage as the ice covered lake has fishes and salamanders in the which were saved.
Some plants as willow, vine maple, black cotton survived the volcano and re sprouted because they had their roots protected in the moist soil.
Also, the birds migrated after spring when affects were over their population also increased.
The increase in plants attracted insects, butterflies, mammoth etc.
In history there are examples when whole life has perished at the volcanic site but in Mount St. Helen species fought back and made most from the ecological disturbance caused.
Answer:
Because the environment changed and the animals adapted
Ground tissue is found in a plant’s.... A. Stems only B. Stems and leaves only C. Roots and stems only D. Roots, stems, and leaves
Answer:
Option D. Roots, stems, and leaves.
Explanation:
Ground tissue is a type of which are present in roots, stem, seed and leaves etc. Ground tissue is responsible for the production of food materials. These tissues also helps in the storage of food substance that are prepared in the leaves and gives support to the plant. Ground tissue is formed from parenchyma, collenchyma, and sclerenchyma.
In all cells,the renewable energy source is
The renewable energy source in all cells would be;
ATP (adenosine tri phosphate)
ATP is responsible for active transport, cellular respiration and many other cell activity. Cells would die without ATP and then so will the organism itself.
Powerful thigh extensor when climbing stairs it can also laterally rotate and abduct the thigh
Answer:
It is true that powerful thigh extensor when climbing stairs it can laterally rotate and abduct the thigh, due to the combined action of the muscles that form it.
Explanation:
Thigh extensors are a group of muscles located in the front of the thigh, needed for walking, running, jumping, climbing stairs, or bending.
Thigh extensors form a combined structure, called the quadriceps femoris:
Rectus femoris.Vast medial or internal muscle.Vast lateral or external muscle.Vast medial muscle.In addition, the longest muscle of the muscular system, the sartorius, is found within the thigh extensors.
When climbing stairs, one of the functions of the thigh extensors is to produce the external rotation and abduction - midline separation - of the thigh, a function specifically performed by the vastus laterale muscle.
A calcium bromide compound is represented by which formula?
Ca2Br
Ca2Br2
CaBr
CaBr2
Answer:
Calcium Bromide is represented by the formula CaBr2.
Answer:
CaBr2
Explanation:
i just got it right on usa test prep
What does the pancreas make that helps to neutralize the acid from the stomach as it goes into the small intestine?
Answer:
The pancreas makes Pancreatic juice.
Explanation:
Aside insulin that is produced by the pancreas when there is rise in body glucose, the pancreas makes Pancreatic juice contains bicarbonate ions (alkaline) to neutralize the hydrochloric(HCl) acid of chyme. The juice contains enzymes which complete the chemical digestion of large molecules that began in the mouth and stomach before they go into the small intestine.
a protein disk that attach two chromatids to each other in a chromosomes is called a
Answer:A protein disk that attach two chromatids to each other in chromosome is called CENTROMERE.
Explanation: it is the attaching point for two chromatids. centromere is responsible for guiding the movement of chromosome.
The particular combination of resources that a species is adapted to exploit is called its
Answer: Competition (Exploitation competition).
Explanation:
Competition is a relationship between different organisms in which one is harmed when they are trying to utilize a particular resource for the purpose of growth, reproduction and survival. The resources are limited.
Exploitation competition is type of competition where organisms of different species compete for resources by exploiting resources to limit the resources available to other organisms.
if the killer whale obtained 26,000 joules of energy by eating the crabeater seal, how many energy was available at each of the following trophic levels of the food chain?
Energy available to killer whale: 26,000 joules
Energy available to crabeater seal: 260,000 joules (assuming a 10% energy transfer efficiency between trophic levels)
In ecological systems, energy transfer between trophic levels follows the 10% rule, meaning that approximately 10% of the energy is passed on to the next trophic level. In this scenario, if the killer whale obtained 26,000 joules of energy from consuming the crabeater seal, it can be inferred that the crabeater seal initially possessed 10 times that amount, or 260,000 joules.
This estimation takes into account the energy lost as heat, metabolic processes, and other inefficiencies as energy moves through different trophic levels in the food chain. Therefore, each trophic level typically retains only about 10% of the energy from the level below it, illustrating the energy dynamics within the ecosystem.
What is the purpose of the part of the male reproductive system that is
highlighted below?
Answer:
D.
Explanation:
The highlighted part of the male reproductive system is the urethra.
One of its major functions is to serve as a conduit for semen and sperm during sexual acts.
A is wrong. The testes manufacture sperm cells.
B is wrong. The prostate gland, the seminal vesicles, and the bulbourethral glands create the fluid in semen.
C is wrong. The epididymis stores sperm cells until they mature.
The highlighted part in the given picture is the urethra which mixes the semen and sperm.
Other parts and their functions in the male reproductive system are,
The sperm cell is manufactured in the testis.The fluid of the semen is produced prostate gland, the seminal vesicles, and the bulbourethral glands.The sperm cells are stored in the epididymis until they mature.Therefore, the purpose of the urethra in the male reproductive system is to mix the sperm and semen.
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True or false
1.All volcanic eruptions are explosive
2.Volcanoes change the Earths surface constantly
3.Magma forms in the mantle
4.Volcanos are randomly located across the earth surface
5.Many volcanoes exist under the oceans
6.Volcanoes are only found in our solar system
Answer:
1. All volcanic eruptions are explosive
False
2. Volcanoes change the Earths surface constantly
True
3. Magma forms in the mantle
True
4. Volcanos are randomly located across the earth surface
False
5. Many volcanoes exist under the oceans
True
6. Volcanoes are only found in our solar system
False
Explanation:
1. Volancoes can also have effusive eruptions.
2. Volcanoes constantly change the Earth's surface in many ways.
3. The upper part of the mantle is where magma is formed.
4. Volcanoes are not randomly distributed over the Earth's surface.
5. There are many volcanoes under the ocean. Some rise half a mile above sea level.
6. There are volcanoes on the moons of Jupiter, Saturn, and Neptune.
Final answer:
1. False. Not all volcanic eruptions are explosive. Some eruptions can be relatively calm. 2. True. Volcanoes can change the Earth's surface constantly through the deposition of lava, ash, and other volcanic materials. 3. True. Magma forms in the mantle, which is the layer beneath the Earth's crust.
Explanation:
1. False. Not all volcanic eruptions are explosive. Some eruptions can be relatively calm, with lava flowing steadily out of the volcano without a violent explosion.
2. True. Volcanoes can change the Earth's surface constantly through the deposition of lava, ash, and other volcanic materials. Over time, this can reshape the landscape and create new landforms.
3. True. Magma forms in the mantle, which is the layer beneath the Earth's crust. It is then transported to the surface during volcanic eruptions.
4. False. Volcanoes are not randomly located across the Earth's surface. They are most likely to occur along tectonic plate boundaries where there is movement and interaction between plates.
5. True. Many volcanoes exist under the oceans. These underwater volcanoes are known as submarine volcanoes and can form new islands or contribute to the growth of existing landforms.
6. False. Volcanoes are not only found in our solar system. They can also be found on other planets and moons, such as Mars, Venus, and Jupiter's moon Io.
Wind energy is currently being used in the production of electricity. One way is through the use of windmills. What is the main advantage of using windmills?
A) They are quiet.
B) They are non polluting
C) They can be used anywhere.
D) They are 90 percent efficient.
B.)
i kown its right
Answer:
B.
Explanation:
Of these answer choices, which could be the cause of Down syndrome for an offspring?
A. The mother's egg contained 22 chromosomes.
B. The father's sperm contained 23 chromosomes.
C. The mother's egg and the father's sperm each contained 23 chromosomes.
D. The father's sperm contained 23 chromosomes and the mother's egg contained 24 chromosomes.
Answer: D). The father's sperm contained 23 chromosomes and the mother's egg contained 24 chromosomes.
Explanation: Down syndrome is a chromosomal disorder caused by an extra chromosome. Each gamete (sperm cells and egg cells) contains 23 chromosomes. During fertilization, a sperm cell with 23 chromosomes fuses with an egg with 23 chromosomes to form a zygote with 46 chromosomes. A normal child has 46 chromosomes but a child with down syndrome has 47 chromosomes. A child with down syndrome has an extra chromosome usually inherited from the mother, that is the mother's egg contains 24 chromosomes instead of 23 chromosomes.
Post - lab question
1. Which members of the Smith family can donate to John?
Answer: provide more info
Explanation:
I need more info
Which of these is a function of all cells. a.to produce oxygen through photosynthesis B. To combine with other cells to form tissues C. To subdivide to form cells to sexual reproduction D. To transfer genetic information from one generation to the next
Answer: d
Explanation:
Answer:
Which of these is a function of all cells?
To combine with other cells to form tissues
Explanation:
Cells comes together to form tissues in order to perform a specific function
I need help in bio it’s due tomorrow pleaseee
Answer:
1. A
2. I
3. Sorry I am not sure.
4. I
Explanation:
1. ATP has 3 phosphate groups, T = tri aka three.
2. ATP has 3 phosphate groups and turns into ADP which as two phosphate groups because when it loses one phosphate, it releases energy.
3.
4. Passive transport does not require energy because when it passes through the cell membrane it is going with the concentration, it goes from high to low concentration. Active Transport requires energy because it is going against the concentration, low to high, so it needs energy to go from low to high concentration.
Answer:
1) A
2) I
3) C
4) I
Explanation: ATP is adenosine triphosphate. It has three phosphate groups attached to the 5th carbon atom of the ribose sugar. ATP contains adenine (a base), a ribose sugar and three phosphate groups.
ATP break down is an exergonic reaction in which the terminal phosphate group of ATP is cleaved to produce ADP and inorganic phosphate group (Pi) with the concomitant release of energy.
Cellular respiration involves the break down of a glucose molecules in the presence of oxygen to produce carbon dioxide, water as by-products with release of energy in form of ATP. The chemical energy in form of ATP released in cellular respiration is used to drive other cellular functions.
Passive transport is a process by which polar compounds and ions move across membrane through an alternative path created by membrane proteins. In passive transport, the transported species always move down its electrochemical gradient and does not require ATP expenditure. This means that passive transport is not coupled to ATP breakdown or does not occur at the expense of ATP hence the name passive transport. It is different from active transport which is coupled to ATP breakdown.
Which system eliminates wastes from the body?
Answer:
Excretory system
Explanation:
Answer: The excretory system.
Explanation: Excretion is a process by which an organism removes or eliminates waste products of metabolism from its body. Excretory system is a group of organs in the body to bring about the removal of waste products from the body. Every organism needs to get rid of the waste products of metabolism from its body cells because if not removed, accumulates and in high concentrations waste products becomes toxic to the body. In humans, the excretory system involves the kidney, the bladder, the urethra, the liver, lungs and skin.
Which of the following best describes surface tension?
A. a measure of the amount of heat that can be absorbed by a substance
a measure of the ability of one substance to dissolve another to form a solution
B.
C.
a measure of the intermolecular forces that cause two identical substances to repel one another
D.
a measure of the intermolecular forces at the surface of a liquid that determines how easily the surface can be broker
E.
a measure of the intermolecular forces that cause two different substances to attract one another
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The statement best describes surface tension is a measure of the intermolecular forces that cause two different substances to attract one another.
What do you mean by surface tension?Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with a higher density than water such as razor blades and insects to float on a water surface without becoming even partly submerged.
The surface tension determines the behavior of liquids in a number of processes and phenomena: Wetting and wettability: The wetting of a solid by a liquid depends, among other things, on the surface tension.
An example of such an organism is the water strider, which can run across the surface of water, due to the intermolecular forces of the molecules, and the force of the strider which is distributed to its legs.
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Which are true of chlorophyll? select all correct answers
A) it absorbs mostly red and blue like to get energy for photosynthesis
B) it reflects greenlight that’s why it’s green
C) it’s found in chloroplasts
D) it’s a pigment
E) it absorbs Green Light
B, C, and D are correct. i think A is correct, but someone else should confirm.
what is the magnitude force and direction of the object
What is the most common and powerful agent of erosion?
A.) wind
B.) ice
C.) water
D.) animal behavior
C.) WATER IS THE ANSWER!!
Answer:
c water is the answer
Explanation:
yeah
Water is the most common and powerful agent of erosion. Therefore, option (C) is correct.
What is erosion?Erosion is the process by which natural forces such as wind, water, ice, and gravity wear away and shape the Earth's surface. Water is the most common and powerful agent of erosion, as it has the ability to erode and shape the landscape in a variety of ways. Water erosion can occur through the action of flowing water, such as in rivers and streams, or through the action of waves and tides in the ocean. Water can also cause erosion through the process of groundwater seepage, in which water flows underground and erodes the soil and rock below the surface.
Water erosion can have a significant impact on the landscape, shaping valleys, carving out canyons, and creating features such as waterfalls and gorges. It is also a major factor in soil erosion, which can have negative impacts on agriculture and the environment.
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Mia is an accomplished wedding photographer. Her career falls under the arts, A/V technology, and communication career center.
A) True
B) False
Answer:
A) True
Explanation:
In Canada, their job description would come under the classification
5 — Occupations in art 52 — Technical occupations in art 522 — PhotographersCommunication skills and personal skills are important for wedding photographers, because they must assess customer expectations before the event and interact with the couples and their families during a stressful time
The job description is appropriate.
Yes, Mia being a wedding photographer indeed falls under the arts, A/V technology, and communication career cluster. This cluster includes professions related to multimedia content, arts and design, journalism, and entertainment services.
Explanation:The statement in the question is true. Mia, as a wedding photographer, indeed falls under the arts, A/V technology, and communication career cluster. This career cluster deals with professions involving designing, producing, exhibiting, performing, writing, and publishing multimedia content including visual and performing arts and design, journalism, and entertainment services. Within this pathway, photography is a key component, making it a fitting place for a wedding photographer like Mia.
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Definition: This is the regular progression of species replacement that occurs after a disturbance, such as natural disaster, or during the establishment of a new habitat.
Example: primary and secondary
Answer:
Ecological succession
Explanation:
Ecological succession can be described as a series of processes by which a climax community arises gradually in an area where there was no form of life before or the previous ecosystem was destroyed bu disasters such as fire, flood etc.
Ecological succession is of two types:
Primary succession occurs on lands where there was no form of life before. On the other hand, secondary succession occurs in lands where there was an ecosystem before which was destroyed.
Which of the following occurs as water vapor cools in the atmosphere? transpiration condensation precipitation evaporation
Answer:
Condensation
Explanation:
Condensation is the change of water from gas form to liquid form. When water vapor in the atmosphere loses heat and cools down, condensation happens.
Condensation occurs as water vapor cools in the atmosphere.
Condensation refers to the natural phenomenon where water vapor becomes a liquid state. In others words, condensation refers to the change of the state in the matter from the gas state into the liquid state.Conversely, evaporation occurs when a substance in a liquid state becomes vapor.In conclusion, condensation occurs as water vapor cools in the atmosphere.
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How do protons contribute towards making ATP?...
Answer: Protons contribute towards making ATP by producing proton-motive force that provides energy for ATP synthesis.
Explanation: In the respiratory chain, the transfer of electrons from one complex to another is accompanied by pumping of protons out of the matrix. This creates a difference in proton concentration and separation of charge across the mitochondrial inner membrane. The electrochemical energy inherent in this difference in proton concentration called proton-motive force is used to drive ATP synthesis as protons flow back passively into the matrix through a proton pore.
-6. Place the following words into the illustration below: gametes, sporophyte, gametophyte,
and zygote. Explain each step in the cycle, and how the terms are related.
1. Gametophyte
2. Gametes
3. Zygote
4. Sporophyte
Explanation:The life cycle of plants are very interesting in nature. The plant body that we see is the sporophyte. The sporophyte plant has the flowers which contain the Pollen mother cell and embryo sac which are the gametophytes.
These gametophytes produce the cells that are gametes which are pollen and ovule respectively. These grains fuse to form fertilization and zygote. The zygote marks the starting of the sporophytic generation.
The sporophytic generation is diploid and the gametophytic generation is haploid in nature.
30 points Plzzzzz hurrrrryyyy test is in 5 minutes. Answer correctly too!!!! Will mark as brainliest Based on the map, IDENTIFY one human activity that could have a negative effect on the Nature Preserve.
Answer:
Housing development and shopping mall
Explanation:
housing development and shopping mall may cause wildlife habitats destroyed. also the land being destroyed is not unenvironmetally friendly
Part 3
1. What is the contour interval?
2. What are the elevations of lines A and B?
3. Provide an approximate elevation for points W (point is inside the circle), X, and Y (point is on the line).
1. The contour interval is 20.
Explanation:
On the map we can see a relief that is depicted with contour lines. The contour lines tend to be very close to each other in general so we can safely make the assumption that the relief is relatively steep, though in accordance to the elevations it is not a high one, but instead the highest points are actually hills.
From the numeric markings on the contour lines we can see the numbers 100, 200, 300, and in between them there are four contour lines. Since the difference in elevation in between every fifth contour line is 100, if we divide that number by the number of contour lines from one thicker contour line to another, which is five, than we get a value of 20, meaning that that is the contour interval.
2. and 3. A has an elevation of 80, B of 60, W between 301 and 319, X between 21 and 39, and Y of 400.
Explanation:
The contour interval is 20 on this map, so with the values we already have as marked on every fifth contour line, as well as the additional contour elements on the map or better reading of it, we can relatively easily establish the value of any point. We have five points in question, some being on the contour lines themselves, while some inside of them, meaning that for the ones on the contour lines we can give an exact value, while for the one inside we can give approximate value.
The points A, B, and Y are all marked on contour lines. A is on the contour line just below the one marked with 100, so minus 20 means that it has a value of 80. The point B is on the second contour line below the one marked 100, so minus 40 means it has a value of 60. Point Y is marked on a main contour line which is not marked, but it is the first thick one after the one marked with 300, so 100 plus means it has an elevation of 400.
Points W and X are marked inside the contour lines, so we can just give a range of value for them. Point W is marked above the contour line marked with 300 and there is no next contour line. Since the contour interval is 20, it means that this point can have value ranging from 301 to 319. Point X is marked below the contour line with a value of 40 and there is no other contour line below, meaning that the value can be in the range of 21 to 39.
What is the difference between a paleontologist and a geologist?
Answer:
its simple!
Explanation:A Geologist is someone that studies the earth! like rocks and dirt!
A Paleontologist is someone who studies old bones and fossiles that are IN the dirt!
A mushroom gains it’s energy by decomposing the tissues of dead organism. Should mushrooms be classified as autotrophs, heterotrophs in both groups, or in neither group and for what reason?
A. They are autotroph because they do not eat their food , as animal do
B. They are autotroph because decomposition is very similar to photo synthesis
C. They are heterotrophs because their food is made by other organisms
D. They are both autotrophs and heterotrophs, because they may grow in sunlight or darkness
Answer:
Because mushrooms require obtaining food from other sources, it should be considered that they are heterotrophs because their food is made by other organisms (option C).
Explanation:
Mushrooms are the sporocarps of multicellular eukaryotic organisms belonging to the Fungi kingdom. Unlike plants -which are able to synthesize their own nutrients- mushrooms must acquire nutrients from organic matter, so they are considered heterotrophic.
The nutrition of mushrooms depends on their affinity for living organic matter -in the form of parasites or symbionts- or dead organic matter, performing its digestion through enzymatic degradation. The sporocarp that characterizes the mushrooms, is the visible form of development that can acquire a fungus.
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determine which scientist made each contribution
Answer:
Pictures?
Explanation:
Answer:
If on Edg...
Robert Hooke
Observed cork cells
Was the first to use word "Cell"
Anton van Leeuwenhoek
observed "animalcules"
used polished lens
Explanation: