Answers
Answer:
The answer is the age of the rock.
Explanation:
Scientists can use their tools and DNA to figure out the age of rocks.
Related Questions
What happens when two
protons get close together?
A. They are attracted to each other.
B. They repel each other.
C. Nothing happens.
Answers
Answer:
they repel each other
Explanation:
in basic chemistry:
protons repel other protons
protons are attracted to electrons
electrons repel electrons
Answer:
B. they repel
Explanation:
I'm learning the same thing lol
Is energy used or not?
Answers
Answer:
Explanation:
energy is used, everything uses energy especially living organisms
Answer:
Yes energy is used, it can be used in certain ways, like when you are running or walking, guess why you are able to do those because you have energy to do that.
Explanation:
The _________________ is the hereditary material of the cell made up of sequences of four nucleotides arranged in linear strands called chromosomes.
Answers
Answer:
DNA
Explanation:
The answer is DNA. It belongs to a class of molecules called the nucleic acids, which are polynucleotides(long chains of nucleotides)
Hope this helped :)
How is earth like a system
Answers
Answer:
Earth is a dynamic planet; the continents, atmosphere, oceans, ice, and life ever-changing, ever interacting in myriad ways. These complex and interconnected processes comprise the Earth system, which forms the basis of the scientific research and space observation that we refer to as Earth system science.
Explanation:
Does anyone know how to do this????!
Answers
Answer:
Check from the internet
Do all rocks folow the same path through the rock cycle? Explain.
Answers
Answer:
There are three different types of rocks: sedimentary, igneous, and metamorphic. Each of these different kinds will have their own, distinct rock cycles. Thus, it's false to say that all rocks follow the same pathway.
heres ur answer<3
Plz help. WIll give brainliest.
Which describes a difference between a positive and a negative feedback loop?
a.) The output of a system signals the system to disregard the stimulus only in a negative feedback loop.
b.) The output of a system stimulates another cycle of the system only in a positive feedback loop.
c.) The output of a system maintains conditions around a set point only in a positive feedback loop.
d.) The output of a system keeps conditions within the body absolutely constant only in a negative feedback loop.
Answers
The positive is and negative
all the black widow spiders on a 5 acre farm
A. biotic factor
B. population
C. species
D. community
Answers
Species because they group that shares the same traits
Not all members of a species are the same. Every species exhibits (blank)
. For example, some beetles are green, while others are brown.
Not all individuals in a population will survive to reproduce. Those that do, pass their (blank)
to their offspring.
Answers
Answer:
Not all members of a species are the same. Every species exhibits
variation.
For example, some beetles are green, while others are brown.
Not all individuals in a population will survive to reproduce. Those that do, pass their traits, genes to their offspring.
Explanation:
Got it right. Hope it helps :)
Help please I need this I don’t understand
Answers
i dont understand too:(
Answer:
The first three boxes are Carbon dioxide (the 6th pic), water and sunlight, I cant figure out the middle box it could be nutrients, and one of the last box's is oxygen (the o)
Sorry im not much help im doing this too and like im literally stuck!
When the concentration of molecules are the SAME on both sides of the cell
membrane, the solution is *
A. Hypertonic
B. In equilibrium
C. Hypotonic
D. Kinetic
Answers
Answer:
isotonic: in equilibrium.
Explanation:
tonicity is the relative concentration of solutes dissolved in solution which determine the direction and extent of diffusion. if let's say sodium is the same both inside the cell membrane and outside the cell membrane then it is isotonic in equilibrium.
4 points
The inferred temperature and pressure of Earth's
interior at a depth of 3,000 kilometers are
approximately
(1) 1000°C and 0.5 million atmospheres
(2) 1000°C and 1.0 million atmospheres
(3) 5000°C and 1.5 million atmospheres
(4) 5000°C and 3.0 million atmospheres
Answers
Answer:
(4) 5000°C and 3.0 million atmospheres
Explanation:
The inferred temperature is 5000°C and pressure of Earth's interior is 3.0 million atmospheres at a depth of 3,000 kilometers. At the depth of 3000 kilometers, core of the earth is present which is very hot and it is mostly consist of iron. The inner core has a radius of about 1,220 kilometers while the outer core is about 1,400 miles thick which comprise of iron, Nickle, gold, platinum, and uranium elements.
I'll give you brainliest if you answer my question.
Identify some changes in genetic traits that have occurred over several generations in an agriculture crop.
(ignore my name)
Answers
Answer:
Environment: All external conditions and factors, living and nonliving (chemical and energy), that affect an organism or other specified system during its lifetime.Generation: our step in the line of descent of a family / all the people born and living about the same time.Phenotype: An organism's physical appearance, or visible traits.Genotype: An organism's genetic makeup, or allele combinations.The kind of changes with respect to the genetic traits that have occurred over several generations in an agriculture crop should be environment, generation, etc.
Changes in the genetic traits:Environment deals with the external conditions and factors, that should be lived or non-lived also it impact an organism at the life time period.
While on the other hand, the generation should be the step with respect to the line of the family descent
Therefore, in this way, the changes should be considered.
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Which of these are an important part of a scientific process?
Answers
Answer:
Is it multiple choice?? If it is, then show us the options
Explanation:
3. What is it called when water vapor is evaporated from plant surfaces? *
Transpiration
Respiration
Photosynthesis
All of the above
Answers
Describe the steps that your body takes when building immunity.
Please helpppp this is due today
Answers
Answer:
Explanition:
The immune system is made up of special organs, cells and chemicals that fight infection (microbes). The main parts of the immune system are: white blood cells, antibodies, the complement system, the lymphatic system, the spleen, the thymus, and the bone marrow.
Why do you think that some bacteria/diseases are harder to eradicate than others?
Answers
Anthophytes that live for only one year or less are called _____.
a.
annuals
c.
perennials
b.
biennials
d.
dicots
Answers
Answer:
annuals
Explanation: bc
Help Please I need the biology Terms
Define the following terms:
Purpose-
Research-
Avoiding Bias-
Hypothesis-
Experiment-
Independent Variable-
Dependent Variable-
Control-
Analysis-
Conclusion-
Answers
Answer:
Purpose- "the reason why something is done or used"
Research- An open access, peer reviewed Journal. Information about a topic that is gained by investigating prevous information gathered by someone else. systematic investigation. A systematic way of gathering data and harnessing curiosity.
Avoiding Bias- Avoiding Bias means to write info with curiosity and with research, not using personal opinion or preferance to write info.
Hypothesis- May be described as an educated guess based on research to describe and/or to explain the effect of a certain cause. Usually written in If....Then.... (A specific testable Prediction describing what you expect to happen in a certain circumstance)
Experiment-An emperical Procedure using scientific method to test and explain a certain circumstance.
Also, A trial or test, carried out under controlled conditions, to discover something unkown, to verify a hypothesis.
Independent Variable- The Variable that is changed during an experiment.
Dependent Variable- The Variable that you measure in response that is affected by the changes made.
Control- The Control variable is the Variable that remains Constant and does not change.
Analysis- The careful study of the data obtained from the experiment.
Conclusion-Short paragraph that discusses the overall results from the data obtained by the experiment and explains whether the hypothesis was right or wrong.
1+2+3+4-17(2) < 36 +23=?
Answers
Answer:
True
Explanation:
The question is incomplete. However, I'll treat it as a true/false question
Given
[tex]1+2+3+4-17(2) < 36 +23=?[/tex]
Required
True or false
[tex]1+2+3+4-17(2) < 36 +23[/tex]
Open bracket
[tex]1+2+3+4-17*2 < 36 +23[/tex]
[tex]1+2+3+4-34 < 36 +23[/tex]
Evaluate the expression on the left-hand side
[tex]-24 < 36 +23[/tex]
Evaluate the expression on the right-hand side
[tex]-24 < 59[/tex]
24 is truly less than 59.
Hence:
[tex]-24 < 59 = True[/tex]
Which of the three kinds of plants produce most of the foods that humans eat?
Answers
Answer: Fruit, seed, Leaf, Lant sperm, Vegetables
Explanation: Friend me and also It's any 3 of these
Once assembled, what is the key to a protein's unique function?
Answers
Answer:
Once assembled, what is the key to a protein's unique function? The manner in which proteins fold is the key to their function
The endoplasmic reticulum is an important region where protein folding occur. Because proteins need to be appropriately folded into distinct structures, this is an essential biological function.
What is importance of protein folding?Proteins that are misfolded or are unfolded improperly impart to the pathophysiology of many illnesses.
Protein folding is a highly delicate process that is regulated by a variety of external stimuli, such as temperature, pH, chemicals, molecule crowding, electric and magnetic fields, and temperature.
These elements affect a protein's capacity to fold into the appropriate functional forms.
Therefore, Protein folding give unique properties to protein functions.
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In a certain plant, yellow leaves are dominant (Y) and red leaves are recessive (y). Plant with genotype Yy and a plants with yy crust. If they have for offspring how many would you predict would have red leaves? (Hint: draw a punnett square to help you determine the answer)
Answers
Answer: 1
Explanation:
a p e x
Answer:
1
Explanation:
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What are you if your Mexican black Asian white Hawaiian
Answers
Answer:
A human
Explanation:
what would be the most beneficial towards maintaining equilibrium in an ecosystem over a long period of time?
a)organisms imported by humans from other environments
b)a sudden change in climate
c) a diversity of organisms
d)predators eliminated from the food chains
Answers
Answer:
c) a diversity of organisms
Explanation:
Biodiversity refers to the number of different species of animals,plants and microorganisms.Biodiversity increases ecological stability in changing environments.Biodiversity reduces competition ,provide more food resources,increases ecosystem productivity etc.
Jimmy explained on his biology test that organisms grow because their cells grow. Explain why his answer is either right or wrong and if he is
wrong explain how organisms actually grow.
Answers
Answer:
See the answer below
Explanation:
Jimmy was right to say organisms grow because their cells grow.
The growth of organisms can happen in terms of an increase in the number of cells they have (through mitotic cell division) or an increase in the volume of the cells with or without an increase in the number of cells.
A good example is found in plants, most of which undergo an increase in size without any increase in the number of cells in their bodies. The uptake and storage of water in the vacuole produces a pressure that pushes on the cell walls, causing an increase in length, girths, and other growth features of the cells of plants.
Maribel brings her backpack to the lab. She is also given a set of lab materials. What is the safest way for Maribel to organize these items in a lab?
Answers
Answer:
The personal items should be off the table, and the lab materials should be placed neatly away from the edge of the table.
Explanation:
It is given that Maribel goes to the lab with her backpack and she is given the lab materials to be used inside the lab to perform her experiment.
Now Maribel in the lab before doing her experiment must keep the personal items like her backpack off the working table and the lab materials are should be kept away from the edge of the table otherwise it might fall accidentally and hurt her.
One needs to be very careful while in the laboratory. One should follow the safety procedures to remain safe and also ensure safety of others. Being unsafe and disorganize can hurt others and can cause harm to others. There are various equipment and chemical in the lab. Therefore one should be careful while working in the lab.
Which of these is the form in which
igneous rock begins?
A. sediment
B. magma
C. carbon
D. soil
Answers
Answer:
B)Magma
Explanation:
Microfilaments are a component of a cell's cytoskeleton and are made of the protein actin. They are important for giving a cell its shape and also aid in _______.
A.) Protein synthesis
B.) Cellular movement
C.) DNA replication
D.) Energy conversion
Answers
Microfilaments are a component of the cell's cytoskeleton and these are made up of the actin protein. They are involved in the cellular movement. Thus, the correct option is B.
What are Microfilaments?Microfilaments are also called as actin filaments, as they consist of two intertwined strands of a globular protein, which is known as actin protein. In association with myosin, microfilaments help to generate forces that are used in cellular contraction and cellular movements. During cell division, these filaments results into dividing cell to pinch off into two daughter cells and are involved in amoeboid movements of certain types of cells.
Microfilaments assist with cellular movement due to the presence of actin filaments. Actin filament works with another protein called myosin to produce muscular movements, cell division, and cytoplasmic streaming during cell division. Microfilaments keep the organelles in place within the cell.
Therefore, the correct option is B.
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students observed several prepared slides of a process that occurs in a dividing onion cell. they observed haploid cells in one slide, centromeres that did not separate during anaphase in another slide, and two different cell divisions resulting in 4 daughter cells in other slides. Which statement is not true about the process that was observed?
1.) the slides were of an egg cell or sperm cell
2.) the process observed produce genetically different cells
3.) the number of chromosomes resulting from the process is reduced by half
4.) the observations suggest cellular reproduction and general growth and repair of the body.
Answers
Answer: pretty sure it could be “B”.
Explanation:
Meiosis produces 4 haploid cells -gametes- from a single diploid cell. The statement that is not true is 4). the observations suggest cellular reproduction and general growth and repair of the body.
Observed prepared slides:
haploid cells in one slide.centromeres that did not separate during anaphase in another slide.cell divisions resulting in 4 daughter cells in other slides.
According to this information, we can assume that the students are observing the occurrence of meiosis events.
MeiosisThrough Meiosis, a diploid cell (2n) produces four haploid daughter cells (n). Thes haploid cells are the gametes.
After DNA replication there are two meiotic phases.
The first one is a reductive phase, in which homologous chromosomes separate. In the second phase, the cell suffers a new, not reductive division.1. In the first phase, Meiosis I:
Prophase I: Chromosomes condensate and become visible. Occurs crossing-over between homologous chromosomes. Crossin-over makes the daughter cells to be genetically different from the original one. Metaphase I: Homologous chromosomes randomly align in the equatorial plane. Anaphase I: In this phase occurs the division and independent separation of homologous pairs. Each chromosome migrates to different poles. This separation generates different chromosomal combinations in the daughter cells. Telophase I: Chromosomes of homologous pairs are already in the corresponding poles, and the nuclear membrane forms again in each pole. Cytokinesis occurs.2. In the second phase, Meiosis II:
Prophase II: Chromosomes condensate again and become visible. Metaphase II: Chromosomes join the spindle apparatus and migrate to the equatorial plane, where they randomly line up. Sister chromatids are holden together until they reach the Anaphase. Anaphase II: Centromeres divide, chromatids get separated, and each of them goes forward an opposite cellular pole. Telophase II: Once in the poles, the chromosomes become lax again, and the nuclear membrane forms again. Cytokinesis occurs. Options1.) the slides were of an egg cell or sperm cell ⇒ Correct. It makes reference to gametes -haploid cells-.
2.) the process observed produce genetically different cells ⇒ Correct. After crossing over and independent segregation of chromosomes.
3.) the number of chromosomes resulting from the process is reduced by half ⇒ Correct. After the reductive phase.
4.) the observations suggest cellular reproduction and general growth and repair of the body. ⇒ INCORRECT. Mitosis is in charge of general growth and repair of the body, not meiosis.
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