Which describes how scientific models are used? (2 points) Select one: a. They allow scientists to make predictions. b. They prevent scientists from performing experiments. c. They make it easier for scientists to avoid using data. d. They prevent people from criticizing the work of scientists.
Answer:
A-They allow scientists to make predictions
Explanation:
Scientific models aid scientists in performing experiments by allowing them to better understand their subject. This rules out B. C and D simply do not make sense, as all good experiments should generally use data to prove the validity of their points and there’s no real way to prevent criticism. Hope it helps :)
The study of heredity or how traits are passed from parent to offspring
Identify two features that a theory must have, to qualify as a scientific theory.
If there weren't alleles for different traits, but rather only one version of a gene for different traits, how would humans be different?
Answer:
Humans would look exactly alike
Explanation:
An allele which is a variation of a gene which expresses a particular trait(Phenotype).
For example, if humans have a gene for eye color but has different alleles for the color being black or brown for example, their phenotypes are different since the alleles are different.
But, if the alleles for the eye color are all the same, the eye color and every other phenotype would be the same. So, there would be no variations in eye color, height, color of skin etc. So, all humans would thus look alike having one set of genes for the different traits.
What role did you play in the production of the protein product?
Explanation:
Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.These proteins provide structure and support for cells. On a larger scale, they also allow the body to move.
The first step of DNA replication is helicase unzips the double stranded DNA. What is the second step?
Answer:
Elongation or primer binding
SCIENCE
Sandy made the following chart comparing the energy sources of the carbon cycle. What correction needs to be made?
A. Decomposition is driven by internal energy.
B. Seashell creation is driven by internal energy.
C. Formation of fossil fuels is driven by solar energy.
D. Rock formation is driven by solar energy.
Rock formation is driven by solar energy
Answer:
a.
Seashell creation is driven by internal energy
Explanation:
can y’all help me this one??
Question and answer are in there
Answer:
cold coastal area
Explanation:
since the hurricanes occur this often it must be in coastal area
Answer:
I believe it's warm coasted area, not entirely sure tho
Explanation:
what can cause rapid revolution?
Answer:
Although scholarly debate continues about the exact causes of the Revolution, the following reasons are commonly adduced: (1) the bourgeoisie resented its exclusion from political power and positions of honour; (2) the peasants were acutely aware of their situation and were less and less willing to support.
Explanation:
brainliest?
If DNA code consists of only four nitrogenous bases, how can it produce so much variety among
organisms of the same species?
Explanation:
I tnought this will help you
If DNA code consists of only four nitrogenous bases, still it produces so much variety among organisms of the same species with the help of Codons and amino acids sequences.
What do you mean by Nitrogenous bases?Nitrogenous bases may be defined as a molecule that contains nitrogen and possesses the chemical properties of a base. The nitrogenous bases that are found in DNA are Adenine (A), Guanine (G), Thymine (T). and Cytosine (C). Uracil (U) is present instead of Thymine in RNA.
There is a total of 4 nitrogenous bases that are found in DNA and RNA. Each codon codes with the help of three nitrogenous bases. So, total variations = [tex]4^3[/tex] = 64.
But there are only 20 amino acids that are commonly known. Some codons are stop codons, they do not code for any amino acids. While some codons code for the same amino acids.
Therefore, If DNA code consists of only four nitrogenous bases, still it produces so much variety among organisms of the same species with the help of Codons and amino acids sequences.
To learn more about DNA structure, refer to the link:
https://brainly.com/question/1328358
Which of the following statements is true about the Big Bang Theory?
1 point
Everything in the universe was created when the big bang occurred and the universe is
expanding
O
Everything in the universe was created when the big bang occurred and the universe is
staying in the same location.
O The sun is the center of our solar system.
The Earth is the center of out solar system.
Kk
Everything in the universe was created when the big bang occurred and the universe is expanding. So, the correct option is (A).
What is Big Bang Theory ?The Big Bang theory is an attempt to explain what happened at the beginning of our universe. Major discoveries in Astronomy and Physics have explained that our universe actually had a beginning. Before that moment there was nothing and after that jump there was something which is our universe.
According to the widely known theory, our universe sprang into existence as "singularity" which goes back around 13.7 billion years ago. Singularities are basically zones which flout our knowledge of physics. They are assumed to be present at the core of "black holes."
Black holes are regions of enormous gravitational pressure. The pressure is assumed to be so extreme that finite matter is actually squished into infinite density (a mathematical concept which truly boggles the mind). These zones of interminable density are called "singularities."
Thus, everything in the universe was created when the big bang occurred and the universe is expanding. So, the correct option is (A).
Learn more about Big Bang theory, here:
https://brainly.com/question/1160650
#SPJ6
PLEASE HELP DUE SOON!
Answer:
5. Plant Cells
6 a. Flagella
6 b. Cilia
7. Vacuole
8. ?
Cell Types
1. Eukaryote
2. Prokaryote
pls help asappppppppppp
Answer:
carbon and hydrogen
Explanation:
elements used in the photosintheses
Information specifying the traits of an organism is carried in DNA by
А .packing atoms loosely into the shape of a round globule
B. packing molecules loosely into the shape of a pleated sheet.
C. packing atoms tightly into the shape of a single spiral.
D. packing molecules tightly into the shape of a double helix.
Answer: c
Explanation:
In what ways can ecosystems be analyzed by the levels of organization within them?
Answer:
nniiii him jjijjjbjbhbijjhh oj
3. Describe three characteristics of cell membranes.
What should I describe First??
Explanation is in a file
bit.[tex]^{}[/tex]ly/3a8Nt8n
How does dna replication occur?
Answer:
Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.
what is the average precipitation of a swamp?
1750mm-2000mm
Explanation:
The average amount of rainfall in swamps and wetlands is 1750mm-2000mm of rain per year. Wetlands refer to areas where water is interrupted by small islands of land and a large number of plants.
the major purposes of Mitosis in living organisms includes, the ___ of organisms, ___ injuries,and maintenance of the organism, during ____ (a phase of cell division) the cell grows larger and replicates its DNA in order to prepare for cell division, known as _____. the original cell that divides is called the ____ while the two new cells are called ____
answers
mitosis, parent cell , daughter cell , growth , healing, and interphase
What mass of methane gas (CH4) is required in order to follow the Law
of Conservation of Mass?
Answer:
2.4g
Explanation:
i got the same question and got it right
In this Punnett square used to predict genetic crosses, RR represents the _________ of the organism.A) appearance B) chromosomes C) genotype D) phenotype
Answer:
Genotype
Explanation:
A genotype is represented by two letters, called alleles, and describes the genes of an organism. Phenotype means the physical characterisitics of an organism. Chromosomes and appearance are irrelevant to this question. Hope it helps :)
Answer:
C) genotype
Explanation: I took the test
1) The human population is currently over 7 billion and is continuing to
grow. Which of these is a benefit of a growing human population?
A)
more available resources
B)
decreased risk of disease
potential economic growth
D) less need for agriculture and agricultural tech
ogy
please help i am give brinliest
Which of the following correctly matches a property of an organic molecule with how that property helps the organic molecule function in living organisms?
A. Carbohydrates lower the activation energy of certain reactions. This allows metabolic processes to take place at a rate that can sustain life.
B. Proteins contain nucleotides that encode genetic material. This allows proteins to accurately pass genetic information from one cell to another.
C. Nucleic acids contain multiple carbon-hydrogen bonds. This allows nucleic acids to provide energy for living organisms by breaking these bonds.
D. Lipids are insoluble in water. This allows lipids that make up biological membranes to regulate the entry and exit of many substances.
No dam links
Answer:
D. Lipids are insoluble in water. This allows lipids that make up biological membranes to regulate the entry and exit of many substances.
Explanation:
A(n)\ is an area of the planet that shaves similar conditions of climate, fauna (animal life), flora (plant life) and geography .
1.biome
2.environment
3.habitat
4.ecosystem
Answer: A BIOME is an area of the planet that shaves similar conditions of climate, fauna (animal life), flora (plant life) and geography . The correct option is 1.
Explanation:
BIOME is defined as large natural terrestrial ecosystems which shares similar conditions of climate and consists of plants and animals that equally have common characteristics with their environment. The word terrestrial is used because plants form the bulk of the community in an ecosystem. The type of vegetation in a biome is largely determined by climatic factors, especially rainfall and temperature. Regions throughout the world which have similar climates have similar biomes. This causes zones of different biomes to occur from the equator to the Arctic and to the Antarctic. For example,
--> in equatorial and tropical areas where temperature is high all the year round tropical forests occur;
--> in temperate regions coniferous and deciduous forests occur;
--> while treeless plains (tundra) are found in the cold arctic regions.
Climates also changes with height above the sea level.
1. Which systems (2) are primarily responsible for movement of the body
Answer:
The correct answer is -muscular system and skeletal system.
Explanation:
The skeletal system and the muscular system work together to move the body or body parts. Different types of tissues form the muscular system that and their action on bones controls the movement of the body in vertebrates.
Tendons are tough muscles that attach with the bones and joints allow the movement by contraction of muscle that helps in moving bones from joint. Muscle normally acts by contracting and relaxing in pairs.
What is the best definition for Earth's atmosphere?
Answer:
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction.
Explanation:
Answer:
Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity.
Explanation:
Single celled organisms are part of the ____________________ group
Question 2 options:
Eukaryota
Bacteria
Archaea
All of the above
Answer:
bacteria and archaea
Explanation: Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes—pro means before and kary means nucleus
Which organisms represents a secondary consumer?
Answer:
Either small fish or zookplanton
Explanation:
A Ecosystem C Community
B Habitat D Population
Choose the most appropriate vocabulary term from the list above
1 ________ All the living and non living things in an area
2 ________ All the ants in an anthill
3 ________ An area that provides food and shelter
4 ________ Fish, frogs, turtles, lily pads and dragonflies are all members of the same what?
5 ________ All the blackbirds in your neighborhood
6 ________ A forest
7 ________ The damp soil within a forest in which a mushroom grows
8 ________ Different populations that live together in a particular area
9 ________ A prairie dog, a hawk, and a badger all members of the same what?
10 ________ The rainbow trout in a stream
Answer:
1: a
2: d
3: b
4: c
5: d
6: b
7: b
8: c
9: c
10: d
Answers proven from test book. :)
What is coal used for
Answer: Coal is primarily used as fuel to generate electric power in the United States. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.
Explanation: