Answer:
scientists have developed four different methods of determining the age of the earth. By using these methods, or a combination of them, the age of geological formations created by past events and even the fossilized bones of prehistoric animals can be determined.
Based on the research done by scientists, the Geologic Column, a graph that illustrates earth age, was developed. The Column, with its names for the epochs and eras of time, illustrates what scientists think was taking place in earth history. The three primary methods are:
Radiation Measurement
Stratigraphic Superposition
The Fossil Record
From these methods of dating, scientists have determined that the earth as we know it seems to be about 4.6 billion years old. It is theorized that the earth got its start as a result of what is called the "Big Bang nearly 6 billion years ago. The Big Bang theory holds that all the planets, stars, solar systems, galaxies, etc., are the result of a huge explosion that sent material speeding through space. As time passed, the gravitational force of larger chucks of material attracted the smaller chunks and formed the galaxies and solar systems we see today.
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We used a microscope marked ×10 on the eyepiece and ×25 on the objective to observe an object that is 0.5 mm long. How long will this object be when observed under the microscope?
Answer: 2500 i think don't count me on it though sorry if it is wrong.
Explanation:
what is cellular respiration
Answer: Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products.
Explanation:
Why did Paul Newman still feel concerned after the
study of the ozone?
Answer:
Inna Allah Yusmiyu Mayyashao”
After this Dua recites verse 22 from Surah Fatir which is mentioned below 111 times.
Wa maa yastawil ahyaaa’u wa lal amwaat; innal laaha yusmi’u mai yashaaa’u wa maaa anta bimusi’im man fil quboor
1 point
What is the difference between a solid, a liquid and a gas of the same substance?
O None of the above are true.
Answer:solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume.
Explanation:
What is the purpose of strand B?
a.) To act as a template for the synthesis of messenger RNA
b.) To carry the code from the DNA molecule in the nucleus to the ribosome
c.) Delivers specific amino acids to the ribosome to make proteins
d.) Transfers nucleic acids to the nucleus
Answer:
The answer is a)
Explanation:
Hope it is helpful for you ✌️
khái niệm, tác dụng ,cơ chế tác dụng của vi khuẩn sinh acid lactic
how plating trees can be a problem
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
There are even more serious issues, as trees have several ways of influencing the climate. The first problem is that trees are dark in comparison to other things that could cover the ground, such as grass or snow. Planting more trees, as a result, tends to make the terrain darker.
Tree planting on a large scale is becoming a more popular part of worldwide efforts to fulfil climate objectives. Forests, on the other hand, are complex ecosystems, and haphazard planting can actually raise carbon dioxide (CO2) levels in the atmosphere, contributing to global warming.
Fact: Trees grow slowly
Which of the following are true regarding ores?
I. Ores can be metallic.
II. Ores can be nonmetallic.
III. Ores consist of minerals.
IV. Materials removed from ores are useful.
A. I, II, III, and IV
ОВ.
II, III, and IV only
C. I, III, and IV only
D. I, II, and Ill only
Answer: its B: I, II, III, and IV
Explanation: i took the K12 test
please match these for me the last 2 are
-are uses a focused beam of electrons to see details inside small objects
-uses a probe to scan the surface of an object and create an image
Minerals are prone to destruction by elements such as oxygen, heat, and acid.
True or False
Answer:
True
Explanation:
Minerals are prone to destruction by different elements such as oxygen, heat, and acids treatment. The given statement is true. On treatment with these elements, minerals loose their properties.
What are minerals?
Minerals are the naturally occurring inorganic elements or compounds which posses an orderly internal structure and characteristics with the specific chemical composition, crystal form, and properties such as physical properties and chemical properties. Minerals differ from the rocks, which are the naturally occurring solids that are composed of one or more types of minerals.
Minerals show properties which can be lost by the treatment with different elements. Minerals have been found to be prone to destruction by the elements such as oxygen, heat, and acids. Minerals undergo chemical and physical change on treatment with these elements and form different products which show different characteristics than the parent minerals.
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History of Present Problem:
Frank was driving home after a long day at work. It was late and he was having problems driving in the dark with so
much traffic. He was forced to take a detour and felt tired, so he took another sip of soda. "What would I do without
sugar and caffeine?" he mumbled to himself. Frank realized that he should probably stop the car as he noticed his hands
begin to shake, but he continued anyway. Rounding a corner, he realized that he was having trouble focusing on the
road. He tried to blink away the blurriness and shook his head, but things did not change. In an instant, the car slipped
off the road and hit a tree. "What was that?" exclaimed Frank to the night air. He quickly got out of the car and checked
himself out. Other than the shock of the accident, Frank seemed to be okay. He pulled out his cell phone and called his
wife, Stacey, to come pick him up. He then called to report the accident to the police and his insurance agent. His wife
arrived about an hour later and looked very concerned when she saw Frank sitting in the police car. "Why aren't you
going to the hospital?" screamed Stacey. "Were you drinking again?" "I'm fine, and no I wasn't drinking. Check with
Sergeant Eversman if you do not believe me. I lost focus; it has been a long day and my vision is a little off. This is too
much stress. Please, I just want to go home." The emergency staff checked him out and recommended he go to the
hospital for evaluation but Frank declined. They drove home, but Stacey continued to badger Frank about going to the
hospital.
Answer:
Frank might have been an alcoholic.
Explanation:
Because his wife,Stacey,asked him if he had been drinking and he also didnt want to go to the hospital for evaluation.
What is a qualitative observation?
Answer:
A qualitative observation involves the use of five sensory organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value.
Explanation:
mark as a brainliest answer if it helps you
Answer:
A qualitative observation involves the use of five sensory organs , sight,smell ,taste,touch and hearing
Explanation:
A qualitative observation involves the use of five sensory organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value. organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value.
What is the best definition of sexual selection? Group of answer choices Selection that results in any type of difference between the sexes. Selection related to any aspect of offspring production. Selection on the form and structure of gametes. Selection that arises as a consequence of competition for access to mates.
Answer:
Selection that arises as a consequence of competition for access to mates
Explanation:
Sexual selection is how somenone will choose the best partner to breed, give birth and raise the next generation
a research about carnivorous plants consists of what information?
Answer: about how they grow and diet and how they do it by it I mean what they do for the process of eating it
Explanation:
Which of the following is NOT a function of the nervous system?
a. receives information about your body
c. signals a response to stimuli
b. maintains homeostasis
d all of these are nervous system functions
Answer:
d
Explanation:
all of these are nervous system function
Answer:
D
Explanation:
All of these are nervous system functions, your nervous system controls your whole body. Since your nervous system is comprised of your brain and other things like the brain stem, everything in your body you can imagine is from the nervous system.
What was the universe immediately before the Big Bang occurred?
a black hole
a singularity
a super spiral galaxy
a mass of antimatter
the answer is a black hole
The universe immediately before the Big Bang occurred as a black hole. Thus, the correct option is A.
What is the Big bang?The big bang may be defined as the cosmic explosion that significantly marked the initiation of the universe according to the big bang theory. The origin of the universe is explained by the Big Bang theory.
At initial, the whole universe appeared like a black hole where no life is present. It was all the dark around each and every corner. The universe was an infinite stretch of ultrahot, dense material and everything consisted of empty space.
Before the big bang, the universe was almost infinitely small, dark, and a size less than a trillionth of a second. It was a period of inflation which is followed by a more catastrophic event which was violent, and known as the period of expansion.
Therefore, the universe immediately before the Big Bang occurred as a black hole. Thus, the correct option is A.
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16. Which of the followings is the symptom of malaria? (a) Chills (b) Fevers (c) Recurring attacks (d) All
Answer:
fevers
Explanation:
sometimes parasites remain in the liver before multiplying.
The new parasites then enter the blood,multiply within the red blood cells and cause the following symptoms:Fever, Headache, shivering,Joint pain , Vomiting & convulsions
please answer fast please
Answer:
year 1800
Explanation:
I think this is the right answer, good luck dude :)
Answer:
i dont know thx for the point.s
Explanation:
What is the genotype?
A A trait that will not be seen in the next generation of offspring.
B A trait that is hidden by another trait.
C The makeup of genetic material.
D What the trait looks like.
Answer:
C. La composición del material genético.
Explanation:
Answer:
The makeup of genetic material.
The structure into which the filtrate first passes
A. Renal artery
B. Proximal tubule
C. Glomerulus
D. Bowman’s capsule
can anyone heelp me
pls pls
Answer: lotion- semi-solid
capsule- solid
suspension- liquid
Explanation:
A scientist who has isolated the green fluorescent protein (GFP) gene from a sample of jellyfish DNA would use which technology to make GFP protein from the GFP gene most effectively?
Gel electrophoresis
Polymerase chain reaction
Restriction enzyme digestion
Gene cloning
Answer:
Polymerase chain reaction
Explanation:
Please let me know if this is correct because I worked hard on it! Also, have a great day and PLEASE MARK BRAINLIEST!
Gene Cloning is referred to as producing similar or identical copies of the same recombinant molecule. So, the correct option is (D).
What is Gene Cloning?Gene cloning is defined as the process in which the gene of interest is copied from the extracted DNA and inserted into the host to replicate the same.
The steps of gene cloning are:
Isolation or extraction of genes of interest using restriction enzymes.Selection of a suitable vector or plasmid carrying the gene of interest.The DNA fragment is then introduced into the desired vector.Transformation of donor DNA into a suitable host cell.The final step is to isolate colonies of transformed cells.Thus, Gene Cloning is referred to as producing similar or identical copies of the same recombinant molecule. So, the correct option is (D).
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Scientists set up ___
and then record
to be tested during an experiment,
And then record ___ as they conduct the experiment
Answer:
1. a hypothesis
2. the results
Explanation:
What is the concept of genetic engineering? Cite its advantages and disadvantage (if there is any).
Answer:
Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism.
Disadvantages
The nutritional value of foods can be less. .
Pathogens adapt to the new genetic profiles
There can be negative side effects that are unexpected
The amount of diversity developed can be less favorable
Copyrighted genetic engineering can have costly consequences.
Advantages
More nutritious food.
Tastier food.
Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)
Less use of pesticides.
Increased supply of food with reduced cost and longer shelf life.
Faster growing plants and animals.
Does an enzyme change the reactants/products permanently? Explain.
Answer:
No, because the change of the equilibrium constant for a reaction. Keq depends only on the difference in energy level between reactants and products.
Explanation:
Every fall many people put leaves that have fallen from local trees on their gardens. By the following summer, many of these leaves seem to have disappeared.
What happened to them?
The himalayan mountains were formed baecause of a
a.convergent boundary
B.transform fault
c.hot spot
D.divergent boundary
Explanation:
because of convergent fault (B).
hope this helps you.
3-carbon-atom (3C) molecule produced in glycolysis is called______________________. Inside a eukaryotic cell, this molecule moves from ______________to ________________ and is oxidized into _____________. If oxygen is not present, it gets reduced into _____________ (in yeast) or ______________(in our muscle cells). Production of ATP in the absence of O2 is called____________________.
Answer:
PYRUVATECYTOPLASMMITROCHONDRIAACETYL COAETHANOL AND CO2LACTIC ACIDANAEROBIC RESPIRATION(FERMENTATION)phenol, strong acids and bases are examples of hazardous chemicals that are
Answer:
corrosive chemicals thank you
is a chemical substance that is produced in substantial quantities, and is reasonably expected to be released in to the environment in substantial quantities a risk trigger, standard trigger, or an exposer trigger?
Means that the EPA has made a determination that a chemical or biological agent may present an unreasonable risk both in toxicity and exposure.
a. exposer trigger
b. standard trigger
c. risk trigger
Answer:
c-risk trigger
Explanation:
The Risk Evaluation process is the second step, following Prioritization and before Risk Management, in EPA’s existing chemical process under TSCA. The purpose of risk evaluation is to determine whether a chemical substance presents an unreasonable risk to health or the environment, under the conditions of use, including an unreasonable risk to a relevant potentially exposed or susceptible subpopulation. As part of this process, EPA must evaluate both hazard and exposure, exclude consideration of costs or other non-risk factors, use scientific information and approaches in a manner that is consistent with the requirements in TSCA for the best available science, and ensure decisions are based on the weight-of-scientific-evidence.