Answer:
the element is potassium
Conditions within an ecosystem are constantly changing.
What options do organisms in the ecosystem have to deal with these changes?
Select all correct answers.
Organisms can adapt to the changes.
Organisms may change the ecosystem back to the way it was.
Organisms may die as a result of the changes.
Organisms can move to a new ecosystem.
Answer:
Organisms may die as a result of the changes.
Organisms can move to a new ecosystem.
Organisms can adapt to the changes.
Explanation:
I look the quiz. Have a good day! hope this helps!
Why is DNA important?
It produces the energy a cell needs to survive.
lt is responsible for creating the food for photosynthesis.
It coordinates with the cell wall to determine what enters and leaves a cell.
It is what makes each type of living creature different.
Answer:
It is what makes each type of living creature different
Explanation:
DNA is basically our blueprint, how we were designed. It's almost impossible for someone's DNA to be exactly the same. Given the exclusion of twins, there is always going to be something different about creatures, even when it comes to doppelgangers!
Hope this helps!
DNA is important as it is what makes each type of living creature different. The correct option is D.
What is DNA?Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells.
Nucleotides are chemical building units that make up DNA. A phosphate group, a sugar group, and one of four different nitrogen bases make up these building components.
Nucleotides are joined together into chains, with the phosphate and sugar groups switching places, to create strands of DNA.
DNA is crucial for inheritance, protein coding, and supplying guidelines for life and its processes in all living organisms.
DNA controls a person's or an animal's growth, reproduction, and final demise. There are 46 chromosomes in total in each of a human cell's 23 pairs of chromosomes.
Thus, the correct option is D.
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Economic importance of tilapia fish
Answer:
Tilapia is one of the most productive and internationally traded food fish in the world. The production of farmed tilapia is among the fastest expanding food sectors in the world. Nile tilapia ( Oreochromis niloticus) is the most cultured freshwater species among the farmed tilapia and contributes about 71% of the world total tilapia production.
Tilapia is one of the most important farmed fish species worldwide (FAO 2018) and an important source of protein (Fitzsimmons 2000;Hai 2015). Due to its sequenced genome (Conte et al. 2017), easy reproduction, efficiency in adapting to diverse diets, high resistance to diseases and handling practices, and high tolerance of a wide variety of husbandry conditions, it is considered an ideal model in toxicological research.
Explanation:
I hope it helps
Explain further the idea that indicates that all of life is related and can be divided into three major clades, often referred to as the three domains. How does that relate to the common confusion indicating that "humans didn't come from monkeysLinks to an external site."?
All of life can be divided into three major clades because it is believed that all branches of the tree of life have the same evolutionary origin.
What is evolution?Evolution is descendence with modification, which generally is due to the process of natural selection.
Evolution indicates that all organisms derive from an ancestral organism (it is related to the cell theory).
In conclusion, all of life can be divided into three major clades because it is believed that all branches of the tree of life have the same evolutionary origin.
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Topic Test
Topic Review Activity
Active
8
Which of the following is not a component of soil?
a. organic material
b. minerals
C. gases
d. none of the above
at the bort answer from the choices provided
2
3
Answer:
D. None of the above
Explanation:
Soil contains rocks (minerals), leaves, decomposed material (organic material, as well as water and air (gas).
Solar energy is energy that Earth receives from the Sun. This type of energy can be used for many things. Using solar panels, it can be used to make energy, or it can reduce the amount of energy needed for things.
Which statement best describes the use of solar energy to heat water for a house?
Group of answer choices
Solar panels that heat water use the Sun's radiant energy to reduce the need for nonrenewable energy sources.
Solar panels that heat water use electricity from the home to reduce the need for nonrenewable energy sources.
Solar panels that heat water trap energy from the air to reduce the need for non-renewable energy sources.
Solar panels that heat water use the Sun's thermal energy to reduce the need for nonrenewable energy sources.
Solar panels that heat water use the Sun's thermal energy to reduce the need for nonrenewable energy sources and is denoted as option D.
What is Thermal energy?
This is also known as heat energy and is responsible for the temperature observed in different bodies.
Solar panels convert thermal energy from the sun to electrical energy through photovoltaic cells.
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An atom whose valence electrons conform to the octet rule is:
Answer:
less likely to form any bond with another atom
Explanation:
Why do plants contain the
greatest amount of energy in the
food pyramid?
Answer:
According to the pyramid of energy, the energy content is maximum in autotrophs or producers. Autotrophs are the plants which prepare their food by photosynthesis. They are the primary producers and primary source of food energy. The flow of energy is unidirectional from producer to consumer level.
Explanation:
According to the energy pyramid, autotrophs or producers have the highest energy content. Autotrophs are plants that prepare their nourishment through photosynthesis. They are the key producers and energy sources for food. Energy flows unidirectionally from producer to consumer.
What is an Energy pyramid?A trophic pyramid, also known as an ecological pyramid, is an illustration of the flow of nutrients through an ecosystem. It is a graphical representation of the proportions of energy available in an ecosystem at each trophic level, or feeding level.
The pyramid of energy is often divided into tiers, with primary producers, like power plants, at the bottom. Above the primary producers come the principal consumers, which include herbivores that eat plants. Then there are secondary consumers, like carnivores that eat herbivores, and so on.
Thus, according to the energy pyramid, autotrophs or producers have the highest energy content.
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The distractive of what cell function leads to deemitations that result in cancer
Answer:
DNA repair genes are involved in fixing damaged DNA. Cells with mutations in these genes tend to develop additional mutations in other genes and changes in their chromosomes, such as duplications and deletions of chromosome parts. Together, these mutations may cause the cells to become cancerous.
Explanation:
How dose the rock cycle transform rock from one type to another
Answer:because weathering the rocks get broken down and makes a new rock
Explanation:
You are provided with three liquids - Water, honey and oil. On pouring the three liquids simultaneously without disturbing. What will be the arrangement of these liquids from top to bottom and why? Conduct this experiment at home and paste the picture of it with proper labeling
Answer:
Honey would be on the bottom, water in the middle, and oil on the top.
Explanation:
Honey is on the bottom because it has a is greater density than water, and oil is on the top because it has less density than water.
It all depends on the viscosity of the materials. Honey on the bottom, oil floating on top and in the middle is water.
What kind of liquids float on water ?The liquids which are in lesser weight just floats over the surface of water.
In the attached image it can be seen clearly that the denser of all is honey which has the property of viscosity as well and it just settles down on the surface whereas the lighter of all is the oil which is seen floating on the surface.
Oil and Water is usually the most common type of example of the two types of immiscible liquids. In this no matter what quantity you mix the oil and water in that they do not mix up . The reason why this happens is as of the basic chemical nature of the oil and the water molecules.
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If you were to teach your friend about Sustainable Development Goals #14 Live Below Water, how would you explain it?
Answer: I would tell them about the water pressure temperatures and the sea life that would live in the sea.:)
Explanation:
Hunting in the area causes all of the shrews in the area to be
killed. How would this affect the rest of the organisms in the
food web?
Answer:
C: the number of crickets would increase
Explanation:
If less shrews were to exist than their prey would increase because they have less predators.
When a substance accumulates within a living organism, it is known as ____.
A: Bioaccumulation
B: Venomous
C: Non-persistent
D: Corresive
Answer:
A: Bioaccumulation
Explanation:
It accumulates (builds up) in you, its bioaccumualtion.
Which of the following is NOT approved for chemical sanitizing after washing and rinsing?
Quaternary ammonium
Chlorine
lodine
Detergent
the correct answer is detergent which is not approved
The chemical that is allowed for being used in hand sanitizing is quaternary ammonium, chlorine, and iodine. The one that is not included is detergent, i.e., option D.
What is a hand sanitizer?Hand sanitizers are the solution made up of some chemicals including quaternary ammonium, chlorine, and iodine.
Detergents are not approved during the formation of hand sanitizer.
Thus, the correct option for the given scenario is D.
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Name two types of evidence scientists use to support the theory of evolution.
5:18 science unit test part 2
100 POINTS TO WHOEVER ANSWERS!!!
In the Galapagos Island finches, the variation in the beak shape correspond to which finch characteristic?
Answer:
Their diet
Explanation:
Over time, all of the finches adapted to their food source. This caused the evolution of their beaks to begin.
The bicep muscle has an attachment point at the shoulder and one in the upper forearm. Look at these images of the bones of the arm. Imagine that the point of the arrow is where the force of the biceps muscle is applied to the bone.
4 images of the bones of the arm are shown. In image A, the bicep pulls the forearm upwards. In image B, the forearm pushes the bicep upwards. In image c, the forearm pulls to the right. In image D, the forearm pushes to the left.
Which image would result in the biceps muscle contracting and the forearm being lifted?
A
B
C
D
The contraction of the biceps muscle will make the forearm to be pushed forward hence the correct answer is option A.
What is the biceps muscle?The biceps muscle is a muscle that occurs at the upper arm. It is filled with connective tissue. The biceps muscle can be likened to a lever machine.
The contraction of the biceps muscle will make the forearm to be pushed forward hence the correct answer is option A.
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Describe a trophic cascade (at
least three organisms long)
that would occur if the orca
whale population were to decrease
Answer:
escribe a trophic cascade (at
least three organisms long)
that would occur if the orca
whale population were to decrease
Explanation:
Which type of renewable energy is seen by
engineers to be the most promising looking
toward the future?
Explain how a species can evolve through natural selection. What is natural selection in your own words?
Answer:
Natural selection is process that allow organism that has suitable attributes with its environment, to thrive (grow in population), to survive, and to pass its genetic information to the next generation (children, grand children).
Explanation:
For example: in an island, a male giraffe, and a female giraffe produce giraffe children with various attributes. Some giraffe children have short neck, and some have long neck.
Giraffe eats the leaves of Acacia tree, and Mimosa tree. Many acacia tree and tall mimosa tree in that island, are tall trees, so a giraffe that has long neck can reach that tall tree, eat the leaves, survive, and grow to adult stage.
A giraffe that has short neck, can only eat small quantity of leaves, then it suffers, can not grow, becomes skinny, and unable to compete with other giraffe finding its mate. It can't pass its genetic information to the next generation, and becomes extinct.
That's how natural selection, in above case, an island with a lot of tall acacia trees and mimosa trees selects giraffe with long neck to survive.
The next interesting follow up question would be how a male giraffe and a female giraffe produce various kind of giraffe children? The answer is a pair of chromosome become a single chromosome in giraffe sperm, and in a giraffe eggs. But that question and its answer are beyond the scope of the original question.
what is the most widely used method of gene editing?
CRISPR/Cas9 is the most widely used genome editor.
Genome editing, also called gene editing, is an area of research seeking to modify genes of living organisms to improve our understanding of gene function and develop ways to use it to treat genetic or acquired diseases.
Match the following terms and definitions.
1.
short-term hormonal influences on animal behavior usually
occurring late in life
2.
a technique that associates a natural response to a stimulus
to an unrelated stimulus; also called Pavlovian conditioning
3. the study of animal behavior in its natural environment
4, when an animal learns not to respond to a stimulus
5. finding a solution to a once unsolvable problem
6,
learning that has taken place but is dormant until a situation
requires it
100
classical conditioning
insightful learning
ethology
latent learning
habituation
activational effects
1. Short-term hormonal influences on animal behaviour usually occurring late in life - activational effects
2. A technique that associates a natural response to a stimulus to an unrelated stimulus; also called Pavlovian conditioning -- classical conditioning
3. The study of animal behaviour in its natural environment - ethology
4. When an animal learns not to respond to a stimulus - habituation
5. Finding a solution to a once unsolvable problem - insightful learning
6. Learning that has taken place but is dormant until a situation requires it - latent learning
How, explain your answer?
Activational effects are the sudden or immediate temporary transient effects of behavioural changes due to the influence of hormones, especially the gonadal or these hormones. The behaviour change in male animals due to an increase in male se hormonal activity can be referred as an activational effect.
Classical conditioning facilitates learning of a behaviour when a conditioned stimulus is associated with an unconditioned stimulus leading to a conditioned response. Animal training by pairing a new unconditioned stimulus with an already known conditioned stimulus, a new conditioned response of behaviour change can be observed.
Ethology refers to the scientific zoological study (includes both laboratories as well as natural field studies) of animals' behavior with relation to their natural environment. It studies and compares about animal behavioral processes changes under various disciplines like ecology, anatomy, evolution etc.
Habituation is an associative learning process that results when an animal learns to resist a stimulus and not to respond to it after repeated exposure.
Insightful learning occurs when various parts of a problem are analyzed and their relationship is understood to arrive at the solution suddenly. Animals must look at a situation as a whole, and observe and analyze it to solve the problem. Some animals like chimpanzees can learn through insightful learning
Latent learning occurs without any associated reinforcements. Animals learn new behaviour through latent learning.
Thus, this could be the answer.
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Which environment would you mostly find animals wuth chemosynthetic bacteria embedded in their tissue
hypothermal vent community.Chemosynthetic symbioses predominate in most deep-sea ecosystems, but they can also infrequently be found at near the surface vents and seeps.
Where would you anticipate to find a most aquatic life?The euphotic zone, which can be found up to 200 metres (656 feet) beneath the surface, is the uppermost portion of a marine ecosystem.Light levels are enough for routine photosynthetic activity at this depth.This area is home to most aquatic life.
Which habitat has water that is subject to tide changes?An ecosystem known as the intertidal zone can be found on sea shorelines, where a wide variety of creatures can tolerate changes in tide levels.
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How dose the cell wall protect a plant cell?
Answer:
It provides support and maintains the cells shape.
Explanation:
Condyloid joint definition
Answer:
"Medical Definition of condyloid joint
an articulation (as that between the metacarpals of the hand and the first phalanx of the fingers) in which an ovoid head is received into an elliptical cavity permitting all movements except axial rotation"
Explanation: "Condyloid joints, also known as ellipsoid joints, are composed of an egg-shaped bone known as a condyle that fits into a similarly shaped cavity. Although it sounds similar to a ball and socket joint, condyloid joints only allow for forward-backward and side to side movement and do not allow rotation."
simply looked this one up hope it helps
Look at the photographs in Figure 6.12 and Figure 6.13. One is taken using a scanning electron
microscope (and then artificially coloured), and one
with a light microscope. The magnification is almost
the same for each one.
What differences can you see in the type of image
two kinds of microscope produce?
A.
top to bottom
1. epidermis
2. palisade cells
3. meophyl layer
bottom left
4. stoma
epidermis is blue
epidermis is on the top and bottom
palisade cells are brown
palisade cells have chloroplasts
chloroplasts is where photosynthesis happens
meophyll layer is spongy
mesophyll layer has large spaces between the cells
Tea leaf. Light micrograph of a cross-section through a tea (Camellia sinensis) leaf. The upper and lower epidermis on the surfaces of the leaf are blue. Under the upper epidermis are palisade cells (brown), which contain chloroplasts, the site of photosynthesis. Beneath this a spongy mesophyll layer with large spaces between the cells. At bottom left, a stoma (pore) is seen. Stomata allow gases and water to enter and leave the plant. Magnification: x230 when printed 10 centimetres wide.
https://www.sciencephoto.com/media/99249/view/tea-leaf-light-micrograph
Question is the picture
7th grade science!
In a grassland ecosystem, praying mantises catch and eat grasshoppers. However, there has been a significant decrease in the praying mantis population in recent years.
How will this most likely affect the grasshopper population over time?
The population will decrease because grasshoppers are the competition.
The population will increase because grasshoppers are the prey.
The population will increase because grasshoppers are the competition.
The population will decrease because grasshoppers are the prey.
Answer:
The population will increase because grasshoppers are the prey.
Answer - B. The population will increase because grasshoppers are the prey.
Because this is a Unit Test you just have to trust me.. Hope this helps. Good luck!
Please tell me the following correct answers if I am wrong. Multiple Choice