Answer:
forest fires.
Explanation:
forest fires are human caused and can destruct the habitat and nutrition of the animals severely
Which of the following is one of the most abundant elements in all living
things?
O A. Calcium
O B. Aluminum
O C. Tin
O D. Gold
Calcium.
Hope this helps!
What happens when someone's brain has a low level of neurotransmitters?
A. Motor neurons aren't able to send messages to muscles,
O B. Action potentials can't form in the sensory neurons.
O C. The nervous system can't create hormones,
O D. Neurons aren't able to communicate with each other.
Answer:
Neurons aren't able to communicate with each other.
Answer: D
Explanation:
1. A _________ is formed when an _________ object blocks the path of light
2. A mirror works by __________the light that hits
Answer:
1.A _shadow_ is formed when an _ transparent _ object blocks the path of light
2. A mirror works by _reflecting_the light that hits
Explanation:
1. A shadow is made when an object blocks light. The object must be opaque or translucent to make a shadow. A transparent object will not make any shadow, as light will pass straight through it.
2.When photons — rays of light — coming from an object (your smiling face, for example) strike the smooth surface of a mirror, they bounce back at the same angle. Your eyes see these reflected photons as a mirror image.
Hope it helps you
What is a reaction center?
What is a pH in biology?
Answer:
pH is the measure of hydrogen ion concentration in a solution. It measures how acidic or how basic a solution is, on a scale of 0 to 14, where less than 7 is acidic, 7 is neutral, and greater than 7 is basic.
Answer:
A quantitative measure of an acid or basicity of aqueous or other liquid solutions. also stands for power of hydrogen
Which of the following did you include in your response?
predator-prey relationships
competition
new habitat
increased food source
new situations allow a variety of traits to be favorable
The main point of environmental habitual life depends on the area an organism lives in.
Answer:
environmental habitual life depends on the area an organism lives in.
Explanation:
When did people begin to notice that coastlines if continents fit together like a puzzle
a. when satellite begin taking pictures of earth from space
b. when Alfred Wegener propose the idea of continental drift
c. when early explorers traveled from Europe and Asia to the Americas
d. when geologists first started examining the fossil record of South America
Answer:
B. When Alfred Wegener propose the idea of continental drift
Explanation:
The first true explanation came from Alfred Wegener, who proposed the Plate Tectonic Theory. This theory stated, in a nutshell, that the continents different pieces that collided together at faults.
Technically, explorers found out this way back. If you consider this the answer choice, then C is your best answer.
Answer:
its c
your welcome
If you burn wood in a fireplace, which type of energy resource are you using?
Answer:
Potential energy
Explanation:
Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine.
Answer: Potential energy
Explanation:
What is the function of insulin?
Insulin is a hormone produced in the pancreas (gut) .
Function:
Insulin regulates the amount of glucose in the blood. The lack of insulin causes a form of diabetes.
Explanation:
Insulin is a hormone secreted by the beta- cells of Islets of Langerhans of pancreas.
Its function is to regulate blood sugar level in the body by decreasing it. If the sugar level of the blood increases, it is detected by the pancreatic cells and it releases insulin.
Hope it helps.
If you have any query, feel free to ask.
What would happen if sex cells underwent mitosis instead of meiosis
Answer:
If gametes (sperm and egg) were made by mitosis, then they would be diploid. ... A tetraploid zygote is not viable and will most likely miscarriage.
Explanation:
Some tools have various levels of graduations. For example, a ruler may have graduations for both millimeters and centimeters. When measuring the length of an earthworm, which graduations would allow for the most accurate measurement?
Answer:
I would say Millimeters
Explanation:
Millimeters are smaller than Centimeters and can measure the length of an earthworm most accurately.
Hope this helps.
Millimeters would allow for the most accurate measurement.
What is Measurement?Measurement is defined as the quantification of characteristics of an object or phenomenon which can be used to compare them with other objects or phenomena. It is a process of determining how large or small a physical quantity is compared to a basic reference quantity of the same type.
It helps us to compare unknown quantities with known quantities. This helps us make quantitative statements about how big, how long, how fast things are. Without measurements, the final product would be full of errors.
Example:- Speedometer is used to measure the speed of vehicles.
A ruler marked in millimeters is more unique than a ruler best marked in centimeters, a millimeter being a smaller unit than a centimeter.
Thus, Millimeters would allow for the most accurate measurement.
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Which piece of evidence supports the theory of continental drift? A. similar animal fossils found in South America and Africa B. transform boundaries found near tropical coastal regions C. large deposits of volcanic rocks found on the ocean floor D. fossils of plants that typically grew in Arctic climates found in Africa
Set up 1: Add a spoon of yeast+cold water leave for 10 minutes and observe the foam formation Set up 2: Add a spoon of sugar and a spoon of yeast add room temperature water leave for 10 minutes and observe the foam formation Set up 3: Add a spoon of sugar and a spoon of yeast add ice cold water and close the mouth with a plastic paper leave for 10 minutes and observe the foam formation. Measure the height of the foam formed in all the three set up. Under your finding. Give reason for your observation
Answer:
The foam was found higher where the water temperatures were higher, then continued the height of the foam where the water was cold and lastly the ice water.
Explanation:
Yeasts undergo alcoholic fermentation, and perform a chemical reaction consisting of the following conditions:
That there is a substrate, that is, some reagent that the yeast can metabolize to give ethanol as a product, in this case it is sugar.
That there is a relatively anaerobic medium, that is why it is closed with film.
That the sea temperature approximately 30 degrees Celsius so that the fermentation is favored.
The bubbling that we see is nothing more than the chemical reaction that the yeast fungus produces when metabolizing the carbohydrate, which in this case is type A sugar, to give ethanol as a product. This chemical reaction releases gaseous components as fermentation occurs, that is, the more bubbling, the faster the reaction and the better the fermentation.
In the situation where the water was freezing and the foam or bubbling was lower regardless of whether it was closed by a plastic, because the extremely low temperature in the water slowed down the reaction rate of alcoholic fermentation.
What type of data is recorded by the electrocardiograph?
Answer:
Electrical signals from your heart to check for conditions and illnesses that can be detected by this data.
You are comparing two samples of the octopus genome, one from an octopus that can make ink (sample 1), and one from an Octopus that can't
make ink (sample 2). You notice the one who can't make ink has a mutation Sample 1: ATTACAGTACTGGCA Sample 2: ATTACAATACTGGCA
Looking at the sequences carefully you determine it is a
mutation
A. Insertion
B. Substitution
C. Deletion
D. Inversion
What phase of mitosis is shown in the diagram below?
O A. Prophase
O B. Telophase
O C. Metaphase
O D. Anaphase
Answer:
B. "Telophase"
Explanation:
The chromosomes are at opposite poles, the nuclear envelope is reforming and the cell is getting ready to divide, the next phase is Cytokinesis.
Hope this helped.
Telophase is a phase of mitosis as shown in the diagram below. The correct option is (B).
Telophase is a stage of mitosis, the procedure by which eukaryotic cells divide. The splitting of the cytoplasm into two daughter cells during cytokinesis, the last stage of mitosis, follows it.
There are several significant events that occur during telophase:
Chromosome decondensation: The chromosomes that were tightly curled and compressed during metaphase and anaphase begin to uncoil. As a result, the genetic material is able to spread and become less obvious under a microscope.
Nuclear envelope formation: Around the divided sets of chromosomes, the nuclear envelope, which had fragmented during prophase and metaphase, starts to reconstruct.
Hence, telophase is a phase of mitosis as shown in the diagram below. The correct option is (B).
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There are 4 types of biomes.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation:
No Joke, this is an actual question have to answer for an assignment.
How much wood, would a wood chuck, chuck, if a wood chuck could chuck wood?
A) Infinite
B) I don't know, 5.
C) as much as they want.
D) This is a stupid question
Answer: c
Explanation:
Answer: C
Explanation: A wood chuck would chuck as much wood as a wood chuck would if a wood chuck could chuck wood.
. The negative charges of one water molecule is attracted to the positive in another, causing them to flock together. This property is known as _____________. Adhesion Repulsion Cohesion Revulsion
Answer:
Cohesion
Explanation:
The negative and positive sides of water molecules are attracted to each other and cause water to be attracted together and stick together.
This is called cohesion, when molecules of the same type stick together.
which of the following describes research that would be considered basic science
Answer:
B. A professor is studying fish
What do these characteristics all have in common?
These genetic traits can all be easily observed
Describe how mutations lead to genetic variations. Which appears to be more dangerous: the BRC1 or BRC2 mutation? Analyze a woman’s risk of dying of cancer if she carries a mutated BRC1 gene. How do heredity and inheritance relate to the data presented in these charts? What data would you need to see in order to draw conclusions about the effectiveness of preventive surgeries? What does the age at diagnosis tell you about the mutation? Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.
Answer:
an EKG technician does not see any duration fro. baseline on the monitor what type of Line is the technician observing
Growth media are used to grow microorganisms in a lab setting. Some media are liquids; others are more solid or gel-like. A growth medium provides nutrients, including water, various salts, a source of carbon (like glucose), and a source of nitrogen and amino acids (like yeast extract) so microorganisms can grow and reproduce. Ingredients in a growth medium can be modified to grow unique types of microorganisms. For example; _____is a general-purpose, non-selective growth media, _____is a non selective, enriched growth medium with red blood cells that have been lysed by heat, Columbia Nalidixic Acid (CNA) and _____are selective agar for Gram positive organisms and ______agar is a selective agar for Gram negative organisms, Mannitol salt agar MSA is a commonly used selective and differential growth medium that encourages the growth of bacteria that ferments mannitol, and _____is an example of a liquid that supports growth of a variety of organisms.
Answer:
Growth media are used to grow microorganisms in a lab setting. Some media are liquids; others are more solid or gel-like. A growth medium provides nutrients, including water, various salts, a source of carbon (like glucose), and a source of nitrogen and amino acids (like yeast extract) so microorganisms can grow and reproduce. Ingredients in a growth medium can be modified to grow unique types of microorganisms. For example; Nutrient agar is a general-purpose, non-selective growth media, Chocolate agar is a non selective, enriched growth medium with red blood cells that have been lysed by heat, Columbia Nalidixic Acid (CNA) and Mannitol Salt agar are selective agar for Gram positive organisms and MacConkey agar is a selective agar for Gram negative organisms, Mannitol salt agar MSA is a commonly used selective and differential growth medium that encourages the growth of bacteria that ferments mannitol, Nutrient broth is an example of a liquid that supports growth of a variety of organisms.
Explanation:
Growth media are classified based on their composition as:
1. General Purpose Media: These type of media support the growth of non-fastidious organisms, that do not require special nutrients for growth, and they also serve as a base for certain modified media. An example is the nutrient agar
2. enriched media: these media, like the name implies, is one that has been modified by the addition of special growth factors and nutrients called enrichment. An example is chocolate agar where lysed blood is added to nutrient base agar, when the blood cells are lysed slowly at 80°C, nicotinamide adenine dinucleotide (factor V or NAD) and hemin (factor X), are released into the medium, and these support growth of certain fastidious organisms like Haemophilus influenza bacteria.
3. Selective media: These kinds of media contain substances that support the growth of certain organisms while in turn preventing the growth of others due to the presence of certain inhibitory factors. Examples are: Mannitol Salt Agar, which supports growth of Gram-positive organisms and MacConkey agar, which supports the growth of Gram-positive organisms
4. Non Selective media: These type of media have no biases against the growth of certain organisms, that is, they do not contain certain inhibitory factors that impede the growth of certain organisms.
5. Differential media: These media contain chromogenic agents that change colour and helps to differentiate one organism from the other, making for ease of identification especially for organisms with similar properties.
Finally, a broth is a growth medium that fo not contain agar, hence, it is liquid and not solid.
what type of experiment is an obsevational study?
Answer:
onsider someone on the busy street of a New York neighborhood asking random people that pass by how many pets they have, then taking this data and using it to decide if there should be more pet food stores in that areac
Explanation:
I googled it!! (study.com)
Abdul put cress seeds on wet filter paper in dishes. He put 20 seeds in each dish. Every day he added 5 cm3 of water to each dish. He kept each dish at a different temperature. How many different temperatures did Abdul use?
Answer:
8 different temperatures
Explanation:
The annexed chart is required to answer this question and should have been provided.
From this chart, we can see that Abdul kept different dishes at 17, 18, 19, 20, 21, 22, 23 and 24 °C, and that at 22°C he experienced the highest number of germinated seeds.
Therefore, Abdul used 8 different temperatures.
Based on the information in the graph, what conclusions can be drawn about the rate of skin cancer in men
compared to that in women?
than in women
Answer:
The correct answer is - Skin cancer increased at a faster rate in men than in women.
Explanation:
Skin malignant growth is the most well-known disease in the entirety of mankind. Although white and albino skinned person individuals have a more possibility of building up this malignancy, consistent exposure to the sun with no skin security has caused an expansion in instances of skin disease regardless to the person's skin shading.
In spite of being a typical disease in ladies, skin malignancy has been developing exponentially among men as of late. This is primarily on the grounds that ladies will in general take more consideration of their skin and ensure it more regularly than men.
Thus, the correct answer is - Skin cancer increased at a faster rate in men than in women.
14. The first system to classify blood types is known as which of the following?
O A-S-R system
O B-D-G system
O A-B-O system
O C-O-V system
Sion
sion
Answer:
A-S-R system
Explanation:
A-S-R system
Answer:
a-s-r
Explanation:
a-s-r
Which of the following statements is true? Stem cells can only be obtained by destroying embryos. Stem cells can be obtained from the brain and other tissues in healthy adults. Stem cells are unobtainable because they can't be kept alive in lab conditions. Stem cells can be produced artificially.
Answer:
Stem cells can be obtained from the brain and other tissues in healthy adults.
Explanation:
Now research is showing that these stem cells can actually be obtained throughout the brain or other body tissues.
Stem cells can be obtained from the brain and other tissues of healthy adults by a mechanism of induced pluripotent stem cell (IPSC). The second statement is the correct one.
What is a stem cell?
Stem cells are present in the body and can form either a single type of cell or multiple kinds of cells. The zygote is an example of a stem cell because it divides to form various types of cells such as the heart cell, lung cell, nerve cell, and so on. This is called a totipotent stem cell, which can form all types of cells.
As the embryo grows, the totipotent nature of cells is lost, and they become pluripotent. Pluripotent stem cells can differentiate to form a wide range of organs such as the lungs, heart, etc.
These cells are further specified as being multipotent stem cells. These stem cells can only form a particular range of cells, such as hematopoietic stem cells. This stem cell can only form blood cells.
A mature cell from the body can be taken and chemically induced to be a pluripotent stem cell (IPSC). Stem cells can't completely form in a lab as they require a lot of signalling molecules.
Hence, stem cells can be obtained from the brain and other tissues of a healthy adult.
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Study the map. Which plate forms a boundary with the African Plate?
Answer:
down below
Explanation:
The western edge of the African Plate is a divergent boundary with the North American Plate to the north and the South American Plate to the south which forms the central and southern part of the Mid-Atlantic Ridge.
Answer:
south american
Explanation:
What are the factors that determine the level of harm an introduced chemical has on the environment? (Site 1)
Answer:
Following are the factors are given below:-
Explanation:
In general, the toxicity of a substance depends on the following factors.
Chemical type and inherent behavior. Dosage, in particular the link dose-time. Exposure route. Species. Stage in life, such as child, young adult, or an older adult. Gender. Fitness to drink. Metabolism. Allocation inside the organ. Excretion Human safety, including organ function and childbirth, requiring physical effects that can affect toxicity. Nutritional status Many chemicals are available. Circadian rhythms (the time of day caused by a medication or other substance)The major factors that determine the level of harm an introduced chemical have on the environment -
type of chemical concentration weather conditionssolubility in waterThe environment of the ecosystem and the health of organisms are affected by the use and the accumulation of persistent pollutants. The following are the factors that help in determining the level of harm of an introduced chemical:
type of chemical - types of chemicals determine the level of toxicity of a particular chemical.concentration - concentration of chemical dependency on the harm of the chemical.weather conditions - the chemical effect on weather also affects the level of harm.solubility in water - chemicals solubility in water affects harm on the organisms.Thus, The major factors that determine the level of harm an introduced chemical have on the environment -
type of chemical concentration weather conditionssolubility in waterLearn more:
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