Please answer
After a glacier starts melting, the melted ice uncovers lifeless rock and gravel.
Which statement describes what usually happens next?
A. Shrubs that need direct sunlight begin to grow among the grasses
B. Grasses begin to grow in the rocky soil and add organic matter to it.
C. Bacteria on roots of seed plants use nitrogen from the air to make nutrients.
D. Lichens begin to grow in the bare rock and cause it to break down.
Answer: The answer is D. Lichens begin to grow in the bare rock and cause it to break down.
Explanation:
Hope it helps!
Giardia is a eukaryotic organism that can cause intestinal illness in dogs, cats, and humans.
Which of the following distinguishes Giardia from all prokaryotes?
Choose 1 answer:
A It has cytoplasm.
B It has a nucleus.
C It is single-celled.
D It can reproduce
Answer:
Option B.
It has nucleus.
Explanation:
Giardia is a microscopic single celled prokaryotic organism that causes giardiasis. Giardiasis is an intestinal Infection in humans and dogs which is caused by giardia. It is an eukaryotic organism that have nucleus and nuclear membrane but it lacks other ORGANELLES that are present in Eukaryotic organisms. It causes diarrhoea in humans and woman's can get infected from dogs.
Answer:
B. It has a nucleus
Explanation:
All living organisms were classified into a large group called DOMAIN. These organisms were classified into two domains viz EUKARYA and PROKARYA depending on whether or not they possess a nucleus. Organisms in the Eukarya domain called Eukaryotes possess a membrane-bound nucleus that houses their genetic material (DNA) while organisms in Prokarya domain called prokaryotes do not possess a membrane bound nucleus.
Based on this, Giardia organism that is described to be an eukaryotic organism that causes illness in cats, dogs and humans is distinguished from any prokaryote by its possession of a membrane-bound nucleus in the cytoplasm of its cell. Any organism referred to as EUKARYOTIC must possess a NUCLEUS.
The host states that it is easier to identify genes that cause illness in families. In order to do this they studied people in __________.
A. Iceland
B. India
C. America
Answer:
A. Iceland
Explanation:
Island is an island and it may lead to high rates of endogamy due to the availability of mates. Endogamy is the practice of having sexual relations only within a small group (in this case, the small group is represented by people living in the island). Endogamy is a reproductive behavior that is associated with the likelihood suffer genetic disorders because the recessive alleles are exposed to selection
6) Regarding the transport of substances through the membrane, osmosis is:
a) Diffusion of ions by chemical gradients
b) Diffusion of ions by electrical and chemical gradients
c) Simple diffusion of water through a membrane
d) An active transport mechanism
A cross between two pure parents for contrasting traits, e.g. tall and short , result in offspring trait are referred to as: (a) medium (b) short (c) hybrids (d) pure for both traits
Answer:
A
Explanation:
It is a mix of both
what are 3 steps of the scientific method storm chasers use
Which scenario would result in a decrease in population size, or a negative population growth? Use this formula: population growth = (birth rate + immigration) – (death rate + emigration) 0 individuals emigrate, 14 individuals die, 14 individuals are born, 14 individuals immigrate 40 individuals emigrate, 0 individuals die, 10 individuals are born, 28 individuals immigrate 12 individuals emigrate, 5 individuals die, 17 individuals are born, 0 individuals immigrate 19 individuals emigrate, 4 individuals die, 25 individuals are born, 0 individuals immigrate
Answer:
A
Explanation:
Approximately how many ATP molecules are produced per molecule of glucose?
10
22
36
50
Answer:
38 ATP molecules
Explanation:
Biology textbooks often say that 38 ATP molecules can be created per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle and also about 34 from the electron transport system therefore the answer is 36.
One scientific investigation may result in
A.
further investigations.
B.
the generation of new ideas or phenomena to study.
C.
the development of new methods or procedures for investigation.
D.
all of these
PLS HELP STUDY ISLAND
Answer:
D. all of these
Explain how human activity can affect the carbon cycle.
Answer:Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification.
Explanation:
Answer:
Burning of Fossil Fuels= When oil or coal is burned, carbon is released into the atmosphere at a faster rate than it is removed. As a result, the concentration of carbon dioxide in the atmosphere increases.
Carbon Sequestration= When plants remove carbon dioxide from the air and store it, the process is called carbon sequestration. Agricultural and forestry methods can affect how much carbon dioxide is removed from the atmosphere and stored by the plants.
Deforestation is the permanent removal of trees from forests. Permanent removal of the trees means new trees will not be replanted.
Human activity can affect the carbon cycle by capturing carbon dioxide and storing it underground rather than permitting it to be released into the atmosphere. This process is called geologic sequestration.
Explanation:
The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone. Along with the nitrogen cycle and the water cycle, the carbon cycle comprises a sequence of events that are key to make Earth capable of sustaining life. It describes the movement of carbon as it is recycled and reused throughout the biosphere, as well as long-term processes of carbon sequestration to and release from carbon sinks.
sry i wrote a lot, but its a lot info about how human activity can affect the carbon cycle
HELP 30 POINTS! Which statements describe the movement of blood through the heart? Select two options.
A.Blood from the veins enters the ventricles.
B.Atria and ventricles contract at the same time.
C.Atria push blood into the ventricles.
D.Valves allow for two-way blood flow.
E.Ventricles push blood out of the heart.
Answers:
✓[C] Atria push blood into the ventricles.
✓[E] Ventricles push blood out of the heart.
Explanation: ←
Using the data from the graph, explain the relationship between the population of snowshoe hares and the population of the lynx. Explain what the graph's lines mean about the relationship.
As you already know, lynx are predators of hares and a balance between the populations of these two animals is necessary, so that the populations have a stable growth.
As you can see in the chart above, when the lynx population is very low, the hare population is high. This is because, as there are few lynxes, predation is low and hares are able to maintain their birth rate higher than the mortality rate. However, there are many hares available for lynx to feed on, which allows the lynx's birth rate to also be higher than the mortality rate, which causes the lynx population to grow.
Also according to the graph, you can see that as the lynx population grows, the hare population decreases. This is because the greater number of lynx causes predatorism to increase and hares are hunted by lynx in greater quantities. This causes the mortality rate of hares to be higher than the birth rate, which decreases its population. On the other hand, the abundance of food allows the lynx population to grow to some extent. This is because, as you can see in the graph, when the hares population is very small, the lynx does not have enough food, which causes an increase in the mortality rate, also decreasing the lynx population.
When the lynx population is low, predatorism is lower, which allows hares to reproduce by increasing their population, which will result in an increase in the lynx population.
The graph shows how the population of snowshoe hares and lynx are related over time. When hare population is high, lynx population increases, and when hare population decreases, lynx population decreases.
Explanation:The graph shows the relationship between the population of snowshoe hares and the population of lynx over a period of time. The x-axis represents time, while the y-axis represents the population size. The lines on the graph indicate the trends in the population sizes of both species. When the snowshoe hare population is high, the lynx population tends to increase, as lynx feed primarily on hares. However, when the hare population decreases, the lynx population also decreases due to a lack of food.
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What is likely the greatest cause of species extinctions this century
Answer:
Habitat destruction and degradation, inflicted as humans expand our activity further into the last wild places, is a powerful engine for extinction.
Explanation:
In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur shown i
The question is incomplete. The complete question is as following:
In humans, the pelvis and the femur, or thighbone, are involved in walking. In whales, the pelvis and femur shown in this figure represent...
Answer:
vestigial structures
Explanation:
A "vestigial structure" or "vestigial organ" are defined as the organs that no longer have any function in the organisms' body but had an important role in past.
Pelvis and femur are thigh bones in humans which helps them in walking but in whale's pelvis and femur are considered as vestigial structures.
The pelvis and femur in whales, are the inherited structure from ancestors and shows evidence for evolution on the basis of natural selection.
Hence, the correct answer is vestigial structures.
which line of defense includes active immunity 1st 2nd 3rd 4th
Answer:
Second line
Explanation:
I did a test with this answer. Mark as brainliest if this is correct sorry if I'm too late :D.
An 80-meter sequoia tree is in the forest. What is most likely the age of the tree?
A.1 year
B.12 years
C.100 years
D.1,200 years
Answer:
The correct answer is option D. "1,200 years".
Explanation:
The giant sequoia (Sequoiadendron giganteum) are the most massive trees in the world, and the tallest is one sequoia called "General Sherman" with a height of 83.8 m. "General Sherman" is estimated to be 2,000 years old, and is estimated that a sequoia tree can live up to 3,500 years. Therefore, an 80-meter sequoia tree in the forest most likely will have more than 1,000 years.
What trait do all solar system models share?
All planets have epicycles.
The moon orbits Earth.
The stars rotate around the Sun.
The planets have a circular orbit around the Sun.
Answer:
The correct answer is B.) The moon orbits Earth.
Trust me, I got it right :)
The trait is that the planets have a circular orbit around the Sun. The Option B.
What is a common trait of all solar system models?In all solar system models, a common trait is that the planets have a circular orbit around the Sun. This means that the planets follow a path around the Sun that is roughly circular in shape.
This trait is based on the understanding that the gravitational pull of the Sun keeps the planets in orbit, and the circular orbit is the result of the balance between the gravitational force and the forward motion of the planets. While the orbits of some planets can deviate slightly from perfect circles, the overall pattern of circular orbits is a fundamental characteristic shared by all planets in the solar system.
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)
Global warming is most closely associated with
A)
increased use of solar panels
B)
increased industrialization
C)
reducing the rate of species extinction
D)
removal of environmental wastes
Answer:
B -> increased industrialization
Explanation:
pollution and fossil fuel burning
Answer:
B) increased industrialization
If you answer this correct I will mark you brainiest: Am I a boy or girl.
Answer:I guess a boy I think by your name
Explanation:
Arrange the inner layers of the Sun in order starting with the innermost layer.
a. Energy produced by nuclear reactions in the core travels to this zone through radiation.
b. The center of the Sun where all the Sun's energy is produced.
c. In this zone, hotter gases from the base travel to the top and cooler gases sink to the bottom due to the temperature difference.
d. This zone is visible from Earth.
Answer:
B, A, C, D
hOPE THIS HELPS:)
B, A, C, D
Have a good day! :)
Dr. Stauffer studies how preschoolers develop language skills. She is most
likely a:
A. personality psychologist.
B. social psychologist.
C. developmental psychologist
D. biopsychologist.
Answer:
Id say C. developmental psychologist
Explanation:
Answer:
C. developmental psychologist
Explanation:
which statement about nuclear fission is false?
a: nuclear fission takes place in the core of the stars
b: the fuel for nuclear fission is often uranium
c: nuclear fission releases large amount of energy
d: nuclear fission is used to generate electricity at nuclear power plants
Answer:
d: nuclear fission is used to generate electricity at nuclear power plants
Explanation:
Nuclear fission is obtained by radioactive decay or nuclear reaction in which nucleus of an atom split into two or more nuclie.
Nuclear energy in nuclear power planst is result of nuclear fission process. In nuclear power plants, uranium atoms undergo process of nuclear fission and split into several nuclie, which generates heat and produces steam. The steam is then used by the turbine to generate electricity.
Hence, the correct option is d.
The statement about nuclear fission which is false is it taking place in the
core of stars.
Nuclear fission is a type of reaction which involves the splitting of an atom
into different parts. This process involves a lot of energy and a common
fuel for it is Uranium. It has importance such as generation of electricity
and researches.
Nuclear fusion takes place in the core of stars and involve the fusion of two
hydrogen atoms to become a helium atom.
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What is meiosis?
what is meiosis
Answer:
All cells arise from other cells through the process of cell division. Meiosis is a specialized form of cell division that produces reproductive cells, such as plant and fungal spores and sperm and egg cells.
Explanation:
In general, this process involves a "parent" cell splitting into two or more "daughter" cells. In this way, the parent cell can pass on its genetic material from generation to generation.
Prisims separate _____ light, such as that form the sun, by wavelength.
Answer:
Prisims separate WHITE light, such as that form the sun, by wavelength.
Final answer:
Prisms disperse white light into a spectrum of colors through a process called dispersion, where light of different wavelengths is refracted by different amounts due to varying refractive indices. Instruments like spectrometers use prisms to separate and analyze these different wavelengths of light.
Explanation:
Prisms separate white light, such as that from the sun, by wavelength through a process called dispersion. Dispersion occurs because different frequencies of light have different refractive indices for a given material. When white light enters a prism—a piece of glass in the shape of a triangle with refracting surfaces—the path of the light is refracted (bent). However, not all colors are bent by the same amount; the bending of the beam depends on the wavelength of the light as well as the properties of the prism. Consequently, different wavelengths (or colors of light) are bent by different amounts and follow slightly different paths. The violet light is bent more than the red light, and, as such, when white light leaves the prism and is focused on a screen, the different colors line up side by side like a rainbow. This separation of colors is a key aspect of spectroscopy.
Additionally, instruments such as spectrometers are used to disperse light and form a spectrum for further analysis. In these devices, light enters through a small hole or narrow slit, is collimated by a lens into a parallel beam of rays, then passes through the prism. Different wavelengths leave the prism in different directions, and a second lens focuses these different images onto a detecting device, such as a CCD. This allows for careful examination of the spectrum created by the dispersion of light.
Question 12 (1 point)
Where do animals obtain the nitrogen they need?
plants they cat
bacteria living within them
Answer:
legumes
plants they eat
Explanation:
Legumes have bacteria attached to it to allow for nitrogen absorption
the bacteria provide the plant with nitrogen, then the plant is eaten (bacteria can no longer provide more nitrogen if eaten).
What part of the reproductive system is highlighted
What chemical in the igniting of the match causes the acid to be produced?
Answer:
When the match is struck a portion of the red phosphorus on the striking surface is converted into white phosphorus, which then ignites. The heat from this ignites the potassium chlorate, making the match head flame up.
Explanation:
Final answer:
The ignition of a match causes a combustion reaction involving P4S3 and KClO3, generating heat, light, and byproducts like carbon dioxide and water vapor.
Explanation:
The chemical responsible for the ignition of a match and subsequent acid production is a compound of phosphorus and sulfur, specifically P4S3 (tetraphosphorus trisulfide). When a strike-anywhere match is rubbed against a rough surface, friction generates enough heat to initiate a combustion reaction. The KClO3 (potassium chlorate) in the match head also plays a crucial role by providing the oxygen necessary for the phosphorus-sulfur compound to ignite.
Upon ignition, a series of reactions occur that result in the combustion of the match, using cellulose in the match and oxygen from the air to produce energy in the form of heat and light. The chemical reaction between these components forms carbon dioxide and water vapor as byproducts.
What are five common sources of a patient in residence stress
Answer:
The fact that stress is typical during the residency training period is well-documented in the literature, as are its many situational, professional, and personal sources, which the author reviews: heavy work-load, sleep deprivation, difficult patients, poor learning environments, relocation issues
Explanation:
Answer:
Heavy load of work to do, not sleeping well, patients that are difficult, poor learning environments, and isolation issues.
Explanation:
I'm sure i am right, but correct me if i'm wrong.
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WILL GIVE BRAINLEIST AND 15 POINTS Look at the following diagram of the carbon cycle.
An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory.
Which of the following facts is best represented by the arrow pointing from G to C?
A) The chemical energy present in fossil fuels is used to create new forms of energy used for photosynthesis.
B) Energy is conserved because the chemical energy present in fossil fuels is used up completely during burning.
C) The mechanical energy produced on burning fossil fuels is transformed into chemical energy stored in carbon dioxide.
D) Energy is conserved because the mechanical energy produced on burning fossil fuels is less than the chemical energy formed.
Answer:
c
Explanation:
Bone marrow,thymus,spleen and tonsils are organs of the what system
Answer: a organ
Explanation:
Answer: lymphatic system