Answer:
There are two primary scales used to measure earthquakes: the Richter scale and the Mercalli scale. The Richter scale is most common in the United States, while worldwide, scientists rely on the Mercalli scale. The moment magnitude scale is another earthquake measurement scale used by some seismologists.
Type of solution involved in osmosis where the concentration of water is higher on the outside of the cell than on the inside.
guys plsssss help me
Answer: A
Explanation:1 this is 4th grade work
If the sperm cell of a fruit fly has 4 chromosomes, then the number of chromosomes in each body cell is:
Answer:8
Explanation:
Number of chromosomes in each body cell is 8.
What do you mean by chromosomes?A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are the histones.
Moreover, chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
Therefore, passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
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minerals can be sorted into metals and___?
Plants
Powder
Gems
Rocks
what are the main jobs of 1. sweat glands 2. epidermis 3. iris 4. sensory neuron 5. optic nerve 6. lens
Answer:
Explanation:
1.regulates body temperature.
2.regulate fluid and protect the body from mechanical injury.
barrier that protects the body from ultraviolet (UV) radiation, harmful chemicals, and pathogens such as bacteria, viruses, and fungi.
3.responsible for regulating the amount of light that gets into the eye.
4.responsible for converting external stimuli from the environment into corresponding internal stimuli;send projections to other elements of the nervous system, ultimately conveying sensory information to the brain or spinal cord.
5.job of the optic nerve is to transfer visual information from the retina to the vision centers of the brain via electrical impulses.
6. lens focuses the light rays that pass through it in order to create clear images of objects that are positioned at various distances
11.
Which describes resolution?
A. how many lenses a microscope uses
B. how sharp an image is
C. how much light is needed to see an image
D. how big an image can be
Answer:
DDDDDDDDDDDDDD
Explanation:
Answer the prelab questions below with reference to the attached class slides.
1. What is a mutation? (A. change of DNA / B. copy of DNA / C. passing of DNA / D. all listed)
2. Describe the info flow of transcription. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D.
DNA --> protein)
3. Describe the info flow of translation. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
4. Describe the info flow of expression. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D. DNA
--> protein)
5. Describe the info flow of replication. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
Answer:
1 . mutation is in a change in a DNA sequence nutrition can visit of DNA copying mistake made during cell division exposure to radiation exposure to Chemicals called motor Jeans Aur infection by viruses
Most of the border of the state of Florida is where the land meets the ocean. What term is used for this?
Answer: Coast? Or peninsula
Explanation:
which is true in a covalent bond
Answer: A chemical bond that involves electron pairs being shared between atoms is called a covalent bond.
how do greenhouse effect allow for there to be life on earth? Explain
Answer:
A greenhouse effect is when a planets atmosphere gets thicker and warms
Explanation:
As a planet with water's parent star gets brighter every million years, The amount of evaporation increases. these are called greenhouse gasses. greenhouse gasses include water vapor and Carbon. This is why Venus is a burning hell. it was once like earth, but the sun kept getting brighter and brighter, causing clouds to form all over the rock, trapping in more heat, and making it far to hot for even metal. One day this will happen to earth, as well. this is why we have global warming. It can be caused by Co2 from earth's inhabitants and water vapor from it's vast oceans.
Can I have brainliest please thanks have a nice day!
Question 7 (1 point)
Which structure in the illustration contains the cell's genetic information?
Answer:
its the nucleus
Explanation:
Answer:
B
Explanation:
The chromatin in the nucleus of the cell contains DNA
Humans start off as a single fertilized cell. How does that one cell create multiple organs and organ systems to form a single human?
Answer:
It's called the multiplication process
Explanation:
Answer:
During the development of an organism, cells differentiate into many distinct cell types. How does a single fertilized egg cell develop into so many different types of specialized cells? They both cannot produce all cells. Multipotent- limited to replacing cells in the tissue where they are found.
Question 7 (2 points)
Which statement best completes the sentence below:
Skin, part of the integumentary system, is your body's -
A. organ that increases metabolism.
B. location for white blood cell production.
C. first line of defense against infection.
D.only way to protect from viruses.
Answer:I think the answer is c
Explanation:
Which of the following best explains why the Sun appears to move across the sky every day?
Group of answer choices
The Sun rotates on its axis
Earth rotates on its axis
The sun orbits around Earth
Earth orbits around the Sun
During Earth's early history, microbial life on land contributed to the formation of soil. Soil formation, in turn, led to the evolution of land plants. Which term describes this chain of events?
Answer:
The correct answer is - nitrogen fixation.
Explanation:
In soil formation microbes play an important role as they help in providing important compounds such as nitrogen by the process of nitrogen fixation that is used by the plants.
Nitrogen-fixing organisms mostly bacteria are free-living but some live in a symbiotic relationship with plants such as Azobacter or with other organisms such as Rhizobium.
Which evidence of evolution allows scientists to know what the physical features of an organism were ?
Cells of the amine system are able to respond to the presence of invading organisms because they recognize the
Answer:
Cells of the immune system are able to respond to the presence of invading organisms because they recognize the antibodies present in the invading pathogen
Explanation:
The mechanisms of human immunity can be grouped into two broad categories: the innate or nonspecific immune system, which provides a first and general defense against any element recognized as foreign, and the acquired or specific immune system that recognizes specific threatening agents and generates a response directed against those elements. When foreign substances enter our body (bacteria, viruses, parasites, proteins from other animal or plant species, cells from other organisms - including those of human origin - and a long etcetera, all of which are given the common name of antigens) and are brought into contact with cells that are members of the immune system, the foreign element or antigen is first captured by certain types of cells that are collectively known as antigen-presenting cells. These cells would correspond to the intelligence service and their mission is to take the antigens, introduce them inside, process them and present the antigens on their surface in a fragmentary way to other cells of the immune system. This results in the activation of lymphocytes that specifically recognize the antigen and ends in the development of mechanisms that mediate the physiological function of the response, that is, the elimination of the antigen. Thus, the immune response can be functionally divided into three phases: the antigen recognition phase, the activation phase of the response, and the effector phase.
Why do very few plants live in streams?
Answer: Very few plants Survive in deep water because concentration of oxygen is less therefore very few plants develop the ability to catch oxygen from water
Explanation:
The
of the cell direcs cell activity and ads like the control center.
Answer:
unable to understand ur question,,,
Explanation:
sry dear!
Answer:
The nucleolus✔ of the cell directs cell activity and acts like the control center.
Explanation:
Hope this helps you :D
Hey y'all I need help with this bio question: what are the pros and cons of different skin tones in different parts of the world?
Please help! I'm struggling! Will give out BRAINILIEST if CORRECT!
What is the difference between natural selection and artificial selection? Explain why?
Answer:
Natural selection is not decided by humans, but aritifical is. In natural selection, the organism that naturally survives will have their selection of characteristics carried onto the offspring. But in artifical, humans decide which characteristics they want from an offsrping for their sepcific need, e.g largest or colour and breed organisms for that characteristic- not to make them survive better.
How efficient are the normal commercial solar cells?
Saturn's rings:
1.) are smaller than Jupiter's
2.) are made of ice and dust
3.) do not have any space between them
4.) can only be seen when the sun is behind the planet
1. Write the complementary code for the following DNA transcription.
A T G C A T T G
Answer:
T A C G T A A C
Pls, help me I have a test today :(
Answer:
Frameshift mutation
Explanation:
i think that is the answer
Sam has a mutation in a gene that affects the function of a transfer RNA (tRNA). Human cells have 20 different types of tRNAs, and each adds a different amino acid to growing peptide chains, which form proteins. Based on what you know so far, would you expect this mutation to affect all proteins produced in Sam's cells? Explain your reasoning.
Answer:
No
Explanation:
The mutation is not expected to affect all the proteins produced in Sam's cells because each protein has a different structure and functions. Proteins are polymers of amino acids and the component amino acid for each protein diffesr. Hence only the proteins whose constituent amino acids include the amino acid being carried by the mutated tRNA would be affected. Others whose constituent amino acids do not include the amino acid being carried by the mutated tRNA would function normally.
Explain a wedge and give 3 examples.
Answer: A wedge is basically an incline plane. Often portable used for many purposes
Explanation: A wedge is a double inclined plane such that the two sloping surfaces taper to form either a sharp edge or a pointed edge. For example, a knife, an axe etc.
In a few cases, the number of inclined planes used can be more than two as well. In such cases, the sloping surfaces generally taper to form either a very sharp or a pointed edge to split or pierce materials. For example, pins, nails etc.
The front end of a boat is shaped like a wedge so that it can easily cut across the flowing water.
The wedge works on the principle of an inclined plane.
The Door Stop Is an example of one,
A Knife is a very thin wedge because it slices through objects
Chisels are used to dig into stone and chip away at it to create sculptures.
Hope this helps Have a awesome day❤️In 2006, an Ethiopian researcher announced the discovery of well-preserved 3.3 million-year-old fossil of a young female hominid. Refer to Figure (F) below. Considering the Hominid trend of evolution, choose which skull would most likely be that most primitive of the three.
Answer:
Skull three
Explanation:
the backlining is in more, and the jaw moves out more, resembeling that of a more gorilla like creature
It sounds like the description is referring to a hominid with a more pronounced facial structure, similar to that of a gorilla. This may indicate a more primitive stage of hominid evolution, as earlier hominids had more pronounced facial features and a more protruding jaw than later, more advanced hominids.
What is the basic evolutionary changes in the group mentioned ?As hominids evolved over time, their facial features became more refined, and their jaw became less protruding as they adapted to a diet that relied less on tough, fibrous vegetation and more on softer, cooked foods. This adaptation allowed for the development of a larger braincase and a more upright posture, both of which are hallmarks of later hominids such as Homo erectus and Homo sapiens.
It's worth noting that the evolution of hominids is a complex and ongoing area of research, and new discoveries and interpretations of existing evidence may change our understanding of the evolutionary timeline and the characteristics of different hominid species.
Over the course of hominid evolution, several important changes occurred that distinguish hominids from other primates. One of the earliest changes was the development of bipedalism, or the ability to walk on two legs. Bipedalism allowed hominids to free their hands for tool use and other tasks, and also facilitated the long-distance travel needed to explore new environments.
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precautions for soil sampling
Answer:
Explanation:
When collecting samples, avoid small areas where the soil conditions are obviously different from those in the rest of the field—for example, wet spots, old manure and urine spots, places where wood piles have been burned, severely eroded areas, old building sites, fencerows, spoil banks, and burn-row areas.
Use a sequence of at least four events to describe some of the ways
that water moves into, through, and then out of the atmosphere.
Please help
Explanation:
together evaporation transpiration sublimation plus volcanally emissions for almost all the water evaporate in the atmosphere that isn't inserted in human activities