The answer is C) hardness
the answer is hardness
water pollution as a result of fertilizer runoff from farms is harmful because it initially
Answer:
Water pollution as a result of fertilizer runoff from farms is harmful because it initially changes the chemical composition of nearby streams and lakes !
Explanation:
Water pollution as a result of fertilizer runoff from farms is harmful because it initially change the chemical composition and nutrient level of near by water bodies( streams and lakes).
Effect of fertilizer runoffFertilizer increases the level of nitrogen and phosphorous in the waterbodies that can cause eutrophication.
Eutrophication can cause algal boom, reduction of dissolved oxygen content, lowers the penetration of sunlight and affect the fish and aquatic life.
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what planet has a very hot surface and is most like earth in size
Venus is closest to earth in mass and size. It is also very hot. Lol
Answer:
Venus
Explanation:
Temperature- Venus has a thick atmosphere, which traps heat. It is the hottest planet in our solar system. The surface temperatures can melt sturdy substances, such as lead.
Size- This planet is the closest to Earth's inner structure (with the cores) and also most similar in size.
An organism that has an unusually large effect on an ecosystem is called
Answer:
biodiversity
variety of life within the area, keystone species is an organism that has a large effect on its ecosystem
Explanation:
An Organism that has an unusually large effect on an ecosystem is called a keystone species.
A keystone species helps in defining an entire ecosystem.
Keystone species have an unusually large effect on an ecosystem. It maintains the local biodiversity of an ecosystem. It influences other species in its habitat. It is an Organism that holds the entire system together. It has low functional redundancy. One of the best examples of keystone species is the sea otters.
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Insects are responsible for the destruction of a significant percentage of potential food harvests every year. Please select the best answer from the choices provided T F
Answer:
T (True)
Explanation:
The insects are very dangerous for the agricultural sector. Each year, the insects manage to cause enormous damage to the crops worldwide, thus causing both financial damage, and shortage of food on the market. In general, the damages done by the insects are in the developing and especially in the less developed countries. The reason for that is that the agriculture in these countries is still done in more primitive way, and the modern day chemicals for protection are either used little, or are totally absent. This leaves the door open for the pests like the insects to feast upon the crops and totally destroy them.
Answer: The answer is true
Explanation: because they destroy them and make them not usable
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities suc
as moving muscles. Explain the energy transformation in this process.
Answer:
organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP.
Explanation:
Which statement is the best summary of the model?
Chloroplast
Intermembrane
Space
Inner Membrane
Outer Membrane
- Light
Dependent
Reactions
Calvin
Cycle
Granum
(Stack of Thylakoids)
Thylakoid
Stroma
(Fluid)
The statement which is the best summary of the model is "Light energy is converted into stored chemical energy in plants". Thus, the correct option will be D.
What is Photosynthesis?Photosynthesis is the process of energy transformation which includes the conversion of light energy (solar energy) into chemical energy. Chemical energy is the energy which is present in the chemical bonds present in the carbohydrate (glucose) molecules.
The process of photosynthesis takes place in the chloroplast of the cell. The solar energy is trapped in the chloroplast of plant cell. Photosynthetic active radiation is the light wavelengths which are absorbed by the plant cells to produce glucose molecules.
The statement which best describes the summary of the model is "Light energy is converted into stored chemical energy in plants".
Therefore, the correct option will be D.
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Your question is incomplete, most probably the complete question is:
Which statement is the best summary of the model?Chloroplast
Outer Membrane
Intermembrane
A Space
Granum
(Stack of Thylakoids)
O
Thylakoid
B
CEN
D
Light
Dependent
Reactions
C
F
Calvin
Cycle
G
Inner Membrane
Stroma
(Fluid)
OA. The sun's energy moves through trophic levels in a food chain.
B. Food molecules are broken down in the cells of living things.
C. A series of aerobic and anaerobic reactions take place in cells
D. Light energy is converted into stored chemical energy in plants
Which of the following is not a characteristic of anaerobic species?
A. They do not have mitochondria.
B. They make ATP from glucose.
C. They use fermentation to make ATP.
D. They live in oxygen-rich settings.
Answer:D
Explanation:good guess
Answer:
The correct answer is option D.
Explanation:
Organisms or particularly species that survive in the absence of free oxygen are called anaerobes or anaerobic species. Some of the anaerobes grow only in the absence of free oxygen are called strict or obligate anaerobic species.
Anaerobic species only form 2 molecules of ATP for every 1 molecule of glucose, while aerobic cells produce 38.Fermentation metabolism permits these species to survive in some of the most extreme environments.
Thus, the correct answer is option D.
Earth’s ozone layer _____.
exists only over Antarctica
has been thickening over the past several years
traps carbon dioxide in the stratosphere
filters harmful ultraviolet radiation from the sun
Earth’s ozone layer filters harmful ultraviolet radiation from the sun.
These are specialized cells that can survive in harsh conditions. What are they called?
Answer:
If this is wrong im very sry, but i belive the answer is white blood cells
Explanation:
These are the cells that fight off infections and bactieria that is not sopposed to be in the human body, or any other living creature.
Mendel’s pea plants had either purple or white flowers. This means that the plants
The plants were expressing recessive or dominant traits through their flower colours
Answer:
The answer is that the plants have two alleles of the gene responsible for the color of flowers.
Explanation:
A gene is a part or section of a chromosome that has the genetic information or the code for a particular protein like flower color. Genes may have two or more forms of the particular gene, these forms are called alleles.
There are two alternative forms of the gene for flower color in the case of Mendel's pea plant. The presence of two alternative or distinct forms displays that there must be two alleles of the gene.
Thus, the correct answer that the plants have two alleles of the gene responsible for the color of flowers.
where is having brightly colored feathers that attract mates most clearly an adaptation for a bird
Answer:
My guess would have to be.. somewhere where the bright colors will stand out (hope this helps)
Explanation:
Which of these indicates equilibrium in the community? A. seral B. pioneer C. ultimate D. intermediate E. climax
Answer:
E. climax
Explanation:
The point of equilibrium in a community is not something that happens very often in nature, in fact it is relatively rare, but there are several examples that have shown how this works. When an equilibrium is reached in a community, it is basically a community consisted of dominant, prominent, small number of species that manage to create a stable community. The state of equilibrium is also known as a climax community. This type of community appears when there's a situation in which the web of biotic interactions between the organisms becomes so intricate that there's simply no way that another organisms can be admitted into the community.
1. What process reduces the level of carbon dioxide in the atmosphere.
2. List THREE unpleasant characteristics or qualities of waste.
3. Give TWO ways in which waste can be combatted.
4. Give TWO advantages of plastic.
5. Give TWO disadvantages of plastic.
Answer:
1. Plants and Decomposers
2. Pollution, lead in the air, poisons the soil.
3. Recycle and use more renewable resources
4. Strong and cheap
5. Does not decompose, kills animals
Explanation:
When your eyes feel tired from looking at close objects, it helps to look at distant objects for a few minutes. Why do you think this helps?
Answer:
When we look at close object, it utilizes energy for muscle contraction and some relation due to which eyes feel tired (muscle contraction helps the aye to focus various objects according to the distance). After that when we look at distant objects they seem to be clear because in doing so our muscles get relaxed that's why the objects at distant appears clear for a while.
describe the two types of root systems.compare and contrast
Answer:
Types of Roots : Roots are of two types viz. (a) Tap roots(normal or main) and
(b) Adventitious roots.
(a) TAP ROOT-Here the radicle prolongs directly to form a main primary roots when the primary root becomes stronger and persistent, it forms the tap root e.g. roots of dicotyledonous plants.
Primary root forms tap root, its lateral branches are secondary roots; branches of secondary roots in turn produce tertiary roots and so on. The tap root with its branches forms the tap root system.
Lightning strikes a tree and stars a forest fire. This is an example of the affecting the .
Lightning strikes a tree and stars a forest fire.This a is an example of the 'atmosphere' affecting the 'lithosphere'.
Answer:
atmosphere affecting the lithosphere
Explanation:
Bipedal walking is more energy efficient
A. than knuckle walking.
B. than quadrupedalism.
C. when running.
D. than arboreal locomotion.
Answer:
C. When running that is the answer
Answer:B.quadrupedalism
Explanation:
Studies today proves that bipedal locomotion evolved from quadrupedalism because it was more energy efficient.
In a research conducted by scientists
4 humans and 4 chimpanzees were made to run on a treadmill, the chimpanzees were trained to walk quadrupedally and bipedally on treadmill. When the results came out humans had used only one quarter of the energy the chimpanzees had used while knuckle walking.
Which pattern of evolution is seen in the relationship between algae and coral ?
Answer:
The mutually beneficial relationship between algae and modern corals ... In addition to confirming that symbiosis dates back to the Triassic, the study found that the corals ... Symbiotic corals exhibit banded growth patterns
Answer:
coevolution
Explanation:
plato
Keystone species are species that play a critical role in balancing an ecosystem. A classic keystone species is the gray wolf, which preys on large herbivores such as deer. The gray wolf was hunted nearly to extinction because it also killed farmers’ livestock. How would the local ecosystem by affected by removing the gray wolf?
Answer:
The population of herbivores would likely increase.
Explanation:
The keystone species - Gray Wolf - are especially useful because they essentially regulate the population of herbivores - like deer - they are a good predator to have to maintain a healthy ecosystem. Without them, the herbivore population would likely continue to grow and this would mean that greenery and the food that the deer eat ( as well as other animals ) would slowly be pushed to lower numbers. This would likely have an effect on the landscape in the area too.
Removing a keystone species like the gray wolf from an ecosystem causes significant imbalances, leading to overpopulation of herbivores, overgrazing, reduced vegetation, and a decrease in biodiversity. These changes can trigger a trophic cascade and potentially collapse ecosystem functioning. Reintroduction of such species can help restore ecological balance.
Impact of Removing a Keystone Species
As predators, gray wolves manage the populations of large herbivores, keeping the ecosystem in balance. Without wolves, populations of animals like deer may increase unchecked, leading to overgrazing. This excessive herbivory can reduce vegetation, particularly in riparian areas, which are crucial for biodiversity. The decline in plant life can lead to soil erosion and degradation of water quality, further impacting other species within the ecosystem. Keystone species also indirectly influence other animals in the ecosystem. For example, by controlling coyote populations, wolves allow smaller prey species which coyotes feed upon to thrive, and by reducing elk populations, they facilitate the re-vegetation of riparian habitats, encouraging the diversity of species in those areas. If a keystone species is removed, this can cause a trophic cascade, a domino effect where the absence of the top predator disrupts the entire food web. Over time, this can lead to a collapse in ecosystem diversity and functioning. Conversely, reintroduction of keystone species has been observed to have positive effects on the biodiversity and ecological balance within their environments, as shown in the Yellowstone wolf reintroduction project.
Which of Newton's laws explains why your hands get red when you press them hard against a wall?
O A.
Newton's law of gravity
OB. Newton's first law of motion
OC. Newton's second law of motion
D.
Newton's third law of motion
Answer:
The Newton's law that explains why the hands get red when you press them hard against a wall is Newton's third law.
Answer:
D. Newton's third law of motion
Explanation:
Which of the following correctly compares steroid and nonsteroid hormones
A. Nonsteroid hormones enter the nucleus and affect protein synthesis while steroidal hormones do not. B. Neither steroid nor nonsteroid hormones enter the cell membrane. C. Steroid hormones bind to receptors on the outside of the cell and rely on secondary messengers while nonsteroidal hormones do not. D. Steroid hormones enter the nucleus and affect protein synthesis, while nonsteroidal hormones do not.
Answer:
The correct answer is option D.
Explanation:
Steroid hormones are basically are lipid-soluble molecules and derived from cholesterol. Steroid hormones pass through cell membranes because they're lipid soluble, and attach to a receptor that is present inside the cell, entering the nucleus, binding to DNA, and beginning gene transcription and translation and produce protein.
Nonsteroid hormones are water soluble hormones that do not enter the cell membrane but bind to cell membrane receptors that produce a chemical signal inside the target cell.
Thus, the correct answer is option D.
The correct comparison between steroid and nonsteroid hormones is C. Steroid hormones bind to receptors on the outside of the cell and rely on secondary messengers while nonsteroidal hormones do not.
Explanation:Steroid hormones, which are derived from cholesterol, are lipid-soluble and can diffuse through the cell membrane to bind to intracellular receptors in the cytoplasm or nucleus. This binding triggers the movement of the hormone-receptor complex to the cell nucleus and the activation of specific genes, leading to the synthesis of proteins.
On the other hand, nonsteroid hormones, such as amino acid-derived and polypeptide hormones, are not lipid-soluble and cannot directly enter the cell. Instead, they bind to receptors on the outer surface of the plasma membrane, triggering signaling pathways and intracellular activity, but do not affect protein synthesis or enter the nucleus.
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Directions: Select ALL the correct answers,
Which of the following statements about genes and traits is true?
A single trait can be controlled by multiple genes,
A single gene can control a single trait.
A single trait can alter multiple genes.
A single gene can influence multiple traits,
A single trait can be controlled by multiple genes, and a single gene can control a single trait.
Explanation:A single trait can be controlled by multiple genes. For example, most human traits, such as height, skin color, and weight, are controlled by multiple genes. This is known as polygenic traits. Multiple genes can interact to confer a specific characteristic or feature.
On the other hand, a single gene can control a single trait. For instance, traits like cleft chin or blood type are controlled by a single gene with two or more alleles. In the case of blood type, there are three different alleles that encode ABO blood type.
Therefore, both statements that a single trait can be controlled by multiple genes and that a single gene can control a single trait are true.
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Neurons and muscle cells perform different functions. In the body, these cells have the same . The function of muscle cells is , while the function of neurons is to send nerve signals
Answer:
The neurons and muscle cells have the same DNA (genetic material) contained in them. The function of the muscle cells is mechanical (contract) to allow the body to move. The function of the nerves is sending and receiving signals in order to trigger or elicit a response to an event.
Explanation:
Answer:
The correct answer will be-
1. Same- genetic material (DNA)
2. Muscle cell- contraction which helps in locomotion.
3. Neurons- send and receive signals
Explanation:
The cell division produces cells with the same genetic material which differentiates to form different types of cells and attain different functions on the type of genes activated as well location of the cells.
The neuron cell and the muscle are derived from the same cells which differentiated to take the different functions like neurons cells help the organism by transmitting the signals from the CNS to the body organs and from organs to the CNS.
The muscle cell helps the organism by causing contraction and relaxation in the muscle as a result of the signals which leads to the mechanical locomotion of the organisms.
Which part of a flower grows into the fruit?
Answer:
Vernicia fordii
Explanation:
Answer:
The ovary
Explanation:
Which of the following describes the muscles?
A group of sensory organs.
A system made of bundles of long fibers.
Hard structures connected by cartilage.
Spongy material connected by bones.
A system made of bundles of long fibers
How do biomass and energy flow through an ecosystem?
Answer:
Productivity within an ecosystem can be defined as the percentage of energy entering the ecosystem incorporated into biomass in a particular trophic level. Biomass is the total mass, in a unit area at the time of measurement, of living or previously living organisms within a trophic level.
HOPE THIS HELPED!!!!!!!!!!!XDDD
Environmentalists are monitoring an area of tropical forest that is being deforested because of human activities. The graph here shows the scientists predictions based on the data they have collected. How is the ecosystem likely to change as a result? Select the two correct answers.
A) Species extinction - This is because animals will lose their homes and will eventually, slowly die out.
and
D) Reduced oxygen - Trees provide us with oxygen
I hope this helps you. ☺
Answer:
The letters A and D are correct.
Explanation:
As you can see from the chart above, due to the constant deforestation of the tropical forest the number of trees in this region is decreasing every year.
As a result of this deforestation, many species will be extinct. First, it will be possible to extinguish many species of plants, or with a reduced population number. In addition, many animals have plants as their natural habitat, when the plant is cut these animals are left without their habitat, exposed to predators and other problems that can cause their extinction.
We cannot forget that plants are one of the main providers of oxygen in our atmosphere, through photosynthesis. If the plant population decreases, the amount of photosynthesis performed decreases and, as a consequence, the amount of oxygen released into the atmosphere decreases.
Which of the following lists the layers of the Earth from hottest to coolest?
inner core, outer core, asthenosphere, lower mantle, lithosphere
outer core, inner core, lower mantle, lithosphere, asthenosphere
inner core, outer core, lower mantle, asthenosphere, lithosphere
lithosphere, asthenosphere, lower mantle, outer core, inner core
Answer:
The correct list is inner core, outer core, lower mantle, asthenosphere, lithosphere.
Explanation:
Based on Structural features and chemical composition earth surface is divided into different layers. The main layers can be described as,
1. Core
2. Mantle
3. Crust
Core:
The core is further divided into inner core and outer core. The inner core is extremely hot and solid. The outer core is in fluid form and surround the inner core.
Mantle:
The mantle layer is composed of rocks. The earth's mantle is also divided into two main layers Lower mantle and upper mantle. Asthenosphere is viscous and present just below the rigid lithosphere.
Crust:
Crust is the outermost layer of earth. It is composed of variety of elements. Lithosphere is the part of Crust.
Answer:
The answer is 1.inner core, 2.outer core,3. lower mantle, 4.asthenosphere, 5.lithosphere
do birds and insects share any structural similarities that would suggest they are closely related?
y/n and why?
Answer:
yes, bird have wings, and so do insects, as well as some birds communicate with each other, as do some insects, and although this may not be similar to each other, they are very interesting, that the birds feathers are actually heavier than there feathers, because their bones are hollow, and insects have an exoskeleton, so basically, they both have interesting bone features
Explanation:
Although birds and insects share some structural similarities like exoskeletons and compound eyes, these similarities are more often seen as examples of convergent evolution rather than proof of close relatedness.
Explanation:Yes, birds and insects do share some structural similarities, but this does not necessarily suggest they are closely related. They both have exoskeletons, although insects have a hard protective covering all over their bodies, while birds just have it on their wings (feathers). Additionally, both groups have compound eyes and they both have wings for flight, though they function and are structured differently. Birds have wings are developed as limbs with bones and muscles covered by feathers, whereas insects have their wings as an extension of their exoskeleton. These similarities are more often seen as examples of convergent evolution, where different species independently evolve similar traits, rather than evidence of close relatedness.
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_____ is a behavior in mating in which one male breeds with a female for a certain period of time and then finds a different mate the following mating season. Monogamy Serial monogamy Polygyny Polyandry
Answer:
Polygyny? i think i am not sure
it’d be serial monogamy! which is (When mates are monogamous for a single mating system and then will find more or different mates during the following seasons).