Answer:
deep sea trench
Explanation:
help I don't get it what does this mean
so the first one is sodium chloride
second one is Magnesium oxide
Third one is Calcium hydroxide
You just have to write them in their word form;
1 - 3 molecules of sodium chloride.
2 - 4 molecules of magnesium oxide.
3 - [tex](OH)^{2}[/tex] stands for "hydroxide" and can be added to many different molecules.
Hope it helped,
BioTeacher101
In the body cells of most organisms, oxygen is used to release ________ for use by the cells. A) urea B) sugar C) energy D) carbon dioxide
Answer:
The answer is C. energy
Explanation:
Answer:
c) energy i took it on usatestprep
Select the correct answer. A girl sitting on a park bench hears a car horn honk. The noise startles her, causing her to jump. When she looks up, she sees her friend driving a car. She smiles and waves at her friend. Which statement is correct?
1. Being startled by a noise and waving to a friend are both reflexive actions.
2. Being startled by a noise and waving to a friend are both voluntary actions.
3.Being startled is a voluntary action, and waving to a friend is a reflexive action.
4.Being startled is a reflexive action, and waving to a friend is a voluntary action.
The correct answer is 4. Being startled is a reflexive action, and waving to a friend is a voluntary action.
Reflexive action occurs involuntarily in a response to a stimulus whereas, a voluntary action is consciously done by a person. The person has total control on the action. A voluntary action is controlled by the brain and involuntary action is controlled by the spinal cord.
Therefore, in the given question, being startled is a reflexive action, and waving to a friend is a voluntary action.
Answer:
Being startled is a reflexive action, and waving to a friend is a voluntary action.
Explanation:
Getting startled is a quick response that doesn’t require thinking. So, it’s a reflex action. On the other hand, waving is a voluntary action that requires thinking and coordination between the brain and the muscles.
Which kingdom includes only multi cellular heterotrophs whose cells lack a cell wall
The answer is Animalia.
I hope this helps!
Cheers, July.
Which of the following theories is supported by the discovery of magnetized rocks that do not match with Earth's poles?
HELP PLS!!!!!!!!!
You haven't included answer choices, so my answer may not match up with the answers you have to choose from. However, this has to do with the polar reversal theory, which was developed after the discovery of magnetic striations at the bottom of the Marianas Trench. According to this theory, Earth's magnetic poles reverse every 200,000-350,000 years due to the constant recycling of Earth's crust through subduction of tectonic plates.
Answer:
A
Explanation:
hope this helps
Species that reproduce sexually have greater genetic diversity than species that reproduce asexually. Why is this the case
Answer:
Sexual reproduction gives path to genetic variability, which is crucial for both evolution and survival of the species.
Explanation:
Mark has diabetes and needs to undergo dialysis twice a week . Dialysis purrifies the blood by removing waste and excess water from the blood . Which body system does dialysis perform a function for?
The procedure of dialysis maintains the body in balance by withdrawing waste, extra water, and salt by preventing them from accumulating up in the body when the kidneys fail. It helps in maintaining a safe level of some kinds of chemicals in the blood, like sodium, potassium, and bicarbonate. It helps in monitoring blood pressure.
Hence, dialysis helps in performing a function for the circulatory system of the body.
One effect of acid rain on the ecosystem is
A. Animal deaths
B.Algal blooms
C.Glacial melting
D. Holes in the ozone layer
Answer:
The answer is A. Animal deaths
Explanation:
Just got it right on my assignment hope this helps :)
1. Plasmodium is a ___________ which causes ____________ in humans.
2. _____________ changes nitrogen of air into ammonia.
3. A drug that kills bacteria._______________
Level 2
4. Why viruses lie in the borderline of living and non-living? 5. Streptococcus, Lactobacillus, Vibrio Cholerae
How are these microorganisms a) similar and b) different? 6. Find the odd one out and give a reason for your choice. a) amoeba, volvox, paramoecium, euglena
b) i. Mushrooms are eaten as food.
ii. Used in fermentation of alcohol
iii. Grows on leather footwear.
7. Why does milk take longer time to form curd in winter than in summer? 8. Why should buildings be painted before rainy season?
Level 3
9. Microorganisms are found in the intestine of certain animals.
Name the microorganisms. _________________
Which component of food is digested by them? ________________
10. We make pickles at home. Do we use any natural preservative in it? ______ Which are the preservatives used? ___________________________________ 11. Why do AIDS patients have low immunity?
12. My mother forgot to keep the extra idli dough in the refrigerator after use on a summer day. At noon she found that the dough was overflowing and had become very sour. How did this happen?
1. parasite - infections in red blood cells
2. The Haber process
3. Antibiotic
4. They do not share all characteristics of living things, however they have a genetic material.
5.
6)
a> Amoeba. A pseudopod that has no definite shape.
b> iii. Grows on leather footwear.
what are the two global wind currents that rise or sink slowly?
Warm air rises, creating a low pressure region, and cool air sinks, creating a high pressure zone. Air flowing from areas of high pressure to low pressure creates winds. Air moving at the bases of the three major convection cells in each hemisphere north and south of the equator creates the global wind belts.
Warm air rises, creating a low pressure region, and cool air sinks, creating a high pressure zone. Air flowing from areas of high pressure to low pressure creates winds. Air moving at the bases of the three major convection cells in each hemisphere north and south of the equator creates the global wind belts.?
Which molecule can diffuse from the digestive tract into human bloodstream without first being digested?
Glucose can diffuse from the digestive tract into human bloodstream without first being digested.
Explanation:
Glucose is a respiratory substance which is ready to undergo oxidation.
Answer:
Glucose.
Explanation:
Glucose can diffuse first from the digestive tract into human bloodstream without being digested. Glucose gets digested in both the stomach and small intestine. When the food gets digested in the stomach then the carbohydrate present in the food breaks into smaller molecules of sugar which is also known as glucose.
The stomach and small intestine both absorbs the glucose and release it into bloodstream. That's why our body needs to store glucose for energy.
Label each image as containing atoms only, molecules that are not compounds, or compounds.
Answer:
Images 1 and 4: atoms
Image 2 : compounds.
Image 3 (yellow doublets): molecules that are not compounds.
Explanation:
Atoms are the smallest entity and are made of three subatomic particles: protons, electrons and neutrons.
Two or more atoms are bonded together to form a molecule. A molecule can have atoms of same or different elements.
Compounds are the molecules that have atoms of different elements only.
Image 1 and 4 represent atoms while image 2 represents compounds. Image 3 (yellow doublets) represents molecules that are not compounds.
This map uses red arrows to show the direction and magnitude of tectonic plate movement. Predict which major plate will move the most over the next 500 years
b its b i know this question african
Answer:
Pacific
Explanation:
what takes place in the nucleus of a cell? replication, transcription, or translation?
The answer is transcription.
Trascription is the process in which the information in the cell's DNA is used as a template to create RNA.
as a cell becomes larger what happens to its surface area and volume
if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
As a cell becomes larger, its volume increases faster than its surface area. This difference in growth rate can limit the cell's size, as the surface area might not be able to meet the metabolic demands of the increased volume.
Explanation:As a cell becomes larger, its volume increases at a significantly higher rate compared to its surface area. This phenomenon is due to the mathematical principles of scaling. Essentially, volume, which is spatial and involves three dimensions (length, width, and height), increases exponentially (by the power of 3) whereas surface area, which only incorporates two dimensions (length and width), increases quadratically (by the power of 2).
This difference in growth rates could lead to a problem. When a cell's size increases, its metabolic demand also grows. Metabolic demands are met by the materials that enter the cell from its surface area (like oxygen and nutrients). So, if a cell becomes too large, the surface area might not be sufficient to support the increased volume, thereby limiting the cell's size.
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List three groups of macromolecules included in the label and describe at least one cellular function for each
Nucleic acids are made up of a sugar, a nitrogenous base, and a _________ group.
A.phosphate
B.cellulose
C.substrate
Answer:A phosphate
Explanation:
just got a 100 on the usa test prep for bio
please help!!!!!!!!! i need an answer to my Hw please!!!!!!! the diagram below represents a portion of a cell membrane Which structure may function in recognition of chemical signals?) A. (D) B. (C) C.(A) D. (B) please help me with hw
the answer is B
ok bye see yaa i hope this helps
The structure in the portion of a cell membrane attached below that recognizes chemical signals is ; ( D ) i.e. structure labelled B in the diagram
The structure in a cell that is responsible for recognizing chemical signals are known as receptors which are Large proteins and they can be located either inside a cell or outside a cell. while cell to cell signalling involves plasma membrane junctions interacting with surface proteins present in within cells .
Hence we can conclude that the structure that functions as chemical signal receptor is the structure labelled B in the diagram.
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The speed of sound is at 300 feet below the sea than at 200 feet.
slower
faster
the answer is faster
All matter is composed of atoms or molecules that have energy of motion, which is also known as _____. kinetic energy solar energy potential energy radiation
Answer:
kinetic energy
Explanation:
When the molecules or atoms of a substance have high kinetic energy, the atoms/molecules move rapidly and collide frequently and harder. Most collisions are inelastic meaning that some of the energy in the collision is lost mostly as heat. This is why increasing the kinetic energy of a substance’ atoms/molecules causes the temperatures of the substance to rise. This is how heating by magnetic induction works.
What cell process is directly responsible for Steve’s growth? A. respiration B. mitosis C. diffusion D. osmosis
HELP QUICK!!
A scientist observes debris added to a landform from a melting glacier. This is evidence for which type of natural process?
Physical weathering
Chemical Weathering
Erosion
Deposition
It may be deposition
Deposition is the answer
Which of the following diseases is not explained by germ theory? (1 point)
malaria
HIV
cancer
flu
Cancer is caused by unregulated cell division, and not by any type of germ. Cancer, therefore, could not be explained by the germ theory. Malaria is a protozoan, HIV and flu are both viruses.
How does a protein kinase cascade work? What does it do to the original signal?
Answer:
A protein kinase is an enzyme which catalysis the phosphorylation reaction.
The phosphorylation can either activate or deactivate other proteins or receptors.
A protein kinase cascade refers to the series of events in which a chain reaction of phosphorylation takes place by which thousands of proteins are phosphorylated.
It helps in signal transduction through which signals (usually hormone) from outside the cell are amplified and transferred to the target molecule present inside the cell.
For example, tyrosine kinase cascade.
A protein kinase cascade is a process in signal transduction where a protein kinase enzyme initiates a series of phosphorylation reactions, triggering cellular responses. It enhances the efficiency and speed of the hormonal response and leads to significant changes in the cell's environment. This process amplifies the original signal, leading to precise and quick cellular responses.
Explanation:A protein kinase cascade is a crucial biological process in signal transduction within a cell, contributing to cellular responses to external stimuli. This process gets triggered by the activation of a protein kinase enzyme which initiates a series of reactions. These reactions involve the phosphorylation of specific molecules by enzymes known as kinases. In other words, the kinases add phosphate groups to proteins, resulting in changes in the proteins' shape and hence activating or inactivating them. Second messengers, examples being cAMP and Ca²+, are often utilized to transmit signals within a cell.
This kinase cascade boosts the efficiency, speed, and specificity of the hormonal response. It can initiate thousands of signaling events almost instantly, even in response to a very low concentration of hormones in the bloodstream. Subsequent to the ligand binding to the cell surface receptor, this sets off a chain of events, leading to a reaction that causes changes in the cell's environment. These changes could include an increase in metabolism or specific gene expression amongst others. Ultimately, the original signal gets amplified and precise responses are generated rapidly.
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a women who is a carrier of hemophilia, marries a man who is not a carrier. what are the possible genotypes of their children?
The possible genotypes of the children could be "XX, XY, XX^h, Y^hX"
They could have 50% regular girls with one being a carrier. 25% of a male who does not have it, and 25% chane of male who does have it.
Explain the difference between the "leading strand" and the "lagging strand" in DNA Replication
One of these is called the leading strand, and it is replicated continuously in the 3' to 5' direction. The other strand is the lagging strand, and it is replicated discontinuously in short sections. These sections are called Okazaki fragments, and they are short lengths of DNA.
The leading strand in DNA replication is synthesized continuously in one direction, while the lagging strand is synthesized in segments due to their antiparallel structure, creating Okazaki fragments.
Explanation:The leading strand and the lagging strand are two terms used to describe the way in which DNA replication occurs. DNA replication is a process that is integral to the biological function of living organisms.
The leading strand is synthesized continuously in the 5' to 3' direction. DNA contains two strands which are antiparallel - meaning they run in opposite directions. Due to the nature of the DNA polymerase enzyme which can only add nucleotides in the 5' to 3' direction, one strand - the leading one, can be replicated continuously in the same direction as the replication fork advances.
The lagging strand, however, is replicated in segments known as Okazaki fragments due to the antiparallel directionality of the DNA strands. The creation of these short, separate Okazaki fragments is then later joined together to make the complete strand.
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Are humans the smartest animal on the planet?
Not necessarily. Monkeys have the same DNA as us
Hope that helps feel free to ask more questions
Brainliest??
Final answer:
Yes , Humans are considered the most intelligent species due to their cognitive abilities. Other animals like apes and dolphins also exhibit significant intelligence. Humans' unique ability to reflect on the universe sets them apart, although intelligence varies across species and comes with different adaptations and costs.
Explanation:
In the animal kingdom, humans are often considered the most intelligent species due to their large and complex brains, which allow for a remarkable capacity for abstract thought, language, introspection, problem-solving, and culture. This high intelligence enables humans to learn behaviors to an extent unmatched by any other species. However, other animals also showcase significant intelligence; for example, apes, such as chimpanzees and gorillas, are capable of learning behaviors and using tools. Additionally, other species like dolphins, octopuses, and ravens have demonstrated the ability to solve complex problems, indicating that intelligence has evolved in multiple forms across different branches of the animal kingdom.
While Homo sapiens may appraise themselves as the most intelligent beings, it's important to note that intelligence comes at an energy cost and evolves incrementally. Moreover, other animals may possess strengths and adaptations in different areas where humans may not be as competent, emphasizing the diverse spectrum of intelligence found in nature.
Our evolutionary cousins, such as orangutans, share human-like traits and behaviors, underpinning our shared genetic heritage. Regardless, humans' ability to understand and question the world and universe at large is a unique quality that sets our species apart. The continuous advancements in various fields through human intellect suggest that, at least for now, humans are the only known species with such a heightened level of cognitive complexity.
True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
I believe this is False because from c to d does not use mechanical energy.
Answer:
False
Explanation:
Water isn't mechanical energy
I'm sorry if it's wrong
Determine whether the characteristics describe DNA replication in prokaryotes only, eukaryotes only, or both prokaryotes and eukaryotes.
Explanation:
DNA replication is a process common to both prokaryotes and Eukaryotes with few differences and similarities.
Differences:
1. Origin of replication (ori) : is a sequence of the genome where initiation of replication takes place. Prokaryotes have only single ori while eukaryotes have multiple ori as the DNA is large in eukaryotes so require multiple or to replicate whole DNA.
2. Replication site: prokaryotes lack nucleus where DNA is present in the cytoplasm while eukaryotes posses nucleus which encloses DNA. Therefore, replication takes place in cytoplasm in prokaryotes while in the nucleus in eukaryotes.
Similarities:
1. Enzymes: both posses same enzymes for DNA replication like DNA helicase, primase, polymerase.
2. The direction of synthesis: the enzyme DNA polymerase synthesizes new strand of DNA in the same direction that is 5' to 3' direction.
Thus, marked answer in the table are correct answer.
Answer:
Explanation:
I took the test
Which of these four cells has the largest actual size?
I want to double check if my answer is wrong. I choose image B
The correct answer is B.