3. True or false: Science aims to answer TESTABLE claims.
Answer: True
Testable claims, or verifiable claims, are claims where we can prove them true or false. We do so by gathering/observing data, then afterward we see if the data fits the claim or not. If not, then we adjust the claim or we throw it out entirely.
What agent of deposition is this? Gravity,wind, waves, running water or glaciers.
Answer:
Sediment
Explanation
students have a mixture of small iron filings and grains of sand that are about the same size. how can the students most easily separate the parts of this mixture?
A. By dissolving the sand in water
B. By picking out the grains of sand by hand
C. By using a magnet to attract the iron filings
D. By using a screen to filter out the iron filings
Answer: c
Explanation:
In snapdragon the gene that affects flower color has two alleles: red (R) and white (W). In heterozygous individuals, the phenotype is pink. If two pink flowers were crossed what would be the probability of a pink offspring?
A. 25%
B. 50%
C. 75%
D. 100%
Answer:
The correct answer is - 50%
Explanation:
In the heterozygous condition, there is always one allele of dominant and one allele of recessive present together and during gamete formation, they assort independently. The probability of the pink flower that is RW can be found by punnet square:
R W
R RR RW
W RW WW
here, out of four two cases is of heterozygous or pink flower so the ration would be 2/4 or 1/2 or 50%
please help me answer!!
What cells combine to make the first eukaryotic cell?
Explanation:
Eu" means "true," and eukaryotes have DNA arranged in chromosomes and encased in a nucleus. Fossil evidence indicates that prokaryotic cells first existed on the earth, prior to the arrival of the eukaryotes.
How many hydroxl groups does psilocybin have?
Answer:
One
Explanation:
Someone answer plssss
Answer:
parent cell diploid cells
Explanation:
Answer:
1. mother cell
2. daughter cells
Explanation:
I hope that helps!
In the USA, many people want to cut their
body mass. Suggest why they
Suggest why they are advised to
avoid cheese.
Answer:
EATING CHEESE, BUTTER AND CREAM CAN HELP PROTECT YOU FROM HEART DISEASE, STUDY FINDS
Explanation:
The nitrogen bases down the center are held together by
Answer:
Hydrogen Bonds
Explanation:
The nitrogen bases are held together in the center of the molecule by Hydrogen Bonds. The type of sugar found in DNA is Deoxyribose.
Answer:
hydrogen bonds
PLEASE ANSWER THISSSSSSSD
Answer:
D. Carbon dioxide + waterExplanation:
I hope it helps ❤❤Where is the active site located on the enzyme?
Answer:
The active site located in a deep tunnel within the enzyme, or between the interfaces of multimeric enzymes.
Which is NOT a form of electromagnetic radiation?
A.
radio waves
B.
sound waves
C.
x-rays
D.
gamma waves
Answer:
Sound waves
Explanation:
Chemical reactions that happen in the __________ inside chloroplasts
Answer:
chemical bond
Explanation:
Name 3 sources of CO2.
Answer:
1. Natural Source
2. Human Source
3. Natural Gas
I don't know if the third one is correct...
Several factors determine the distribution of biomes on the planet. Which factor is considered most important?
A. weather
B. temperature
C. altitude
D. precipitation
Answer:
B
Explanation: i hope this is the answer
From the equator to the poles, the temperature of the Earth's surface normally drops. A biome's moisture content is influenced by both precipitation and evaporation, hence option B is correct.
What are biomes?Climate is the most important abiotic factor affecting the distribution of terrestrial biomes.
Temperature and precipitation are the primary determinants of plant growth. The plant will be discovered at that temperature and precipitation will be determined by the biome's temperature.
A biome's climate is mostly determined by the forms of life that exist there. Latitude, geographic characteristics, and atmospheric processes that disperse heat and moisture are only a few of the variables that affect climate. Scientists disagree on the number of distinct biomes that exist.
Therefore, temperature determines the distribution of biomes on the planet.
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PLEASE HELP WITH #2 complete sentences please I will mark brainliest
How many atoms of carbon, hydrogen, and oxygen are there in the reactants of photosynthesis?
Answer:
The reactants have one carbon atom, four hydrogen atoms, and four oxygen atoms. IN HYDROGEN ATOMS It takes six atoms of carbon (C) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6). These atoms come from carbon dioxide (CO2) and water (H2O). IN OXGYEN It takes six atoms of carbon (C), six atoms of oxygen (O) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6).
In photosynthesis, the reactants have one carbon atom, four hydrogen atoms, and four oxygen atoms.
What do you mean by photosynthesis?Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants. After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
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just do the first one and if you don’t know it don’t answer please this is due today
fungus needs water and minerals salts ro grow up ? is this true justify
i think it’s B but not sure need sum help plz!
Below is one of the food chains in an ocean ecosystem.
plankton
-
shrimp mackerel tuna
Which of these statements is a scientific question that might be asked about
this food chain?
A. Do tuna swim faster than mackerel when they are hunting food?
B. How would a loss of tuna from this ecosystem affect the amount
of plankton?
C. How many more tuna live in this ecosystem than mackerel?
D. Do shrimp eat more plankton or more mackerel in one day?
Which organism is defined as something that lives deep in the ocean in areas with very high temperatures and pressure?
Answer:
shark
Explanation:
Organisms living in the deep ocean must be adapted to survive under extreme pressure, limited light, cold temperatures, and other factors. Organisms living in the deep ocean must survive in a physical environment that is radically different from ocean habitats near the sea surface.
_____ is a molecule of oxygen with
_______oxygen atoms instead of 2.
Answer:
Ozone, 3.
Explanation:
Ozone is a molecule of oxygen with 3 oxygen atoms instead of 2 that is present in the atmosphere of the earth. It is a very important gas because this gas filter the solar radiation from ultra violet radiation which causes skin cancer disease. Ozone is present in the stratosphere layer of atmosphere that is present between 15 to 30 kilometer high from the earth surface.
Explain an example of how artificial selection can help solve human problems.
Answer:
Artificial selection can help solve human problems since humans can choose the desired traits of an organism to coordinate with their needs.
Explanation:
Since artificial selection is predictable, it is easier for humans to "customize" the traits of an organism to get a desired trait.
The kidneys remove waste products in a process called
Answer:
The kidneys remove waste products called urea from the blood through nephrons. Nephrons are tiny filtering units. There are about one million nephrons in each kidney.
Explanation:
Answer:
i believe the answer is urea
Explanation:
The kidneys remove waste products called urea from the blood through nephrons. Nephrons are tiny filtering units. There are about one million nephrons in each kidney. Each nephron consists of a ball formed of small blood capillaries, called a glomerulus, and a small tube called a renal tubule.
How is fitness related to genes?
a. Animals with higher fitness have a better chance of
passing their genes on to the next generation.
b Animals with higher fitness make better and more
useful genes.
c Animals with lower fitness have a better chance of
passing their genes on to the next generation.
Need a Hint?
d. Animals with higher fitness use their genes more
efficiently.
Answer:
b
Explanation:
Genes passing to the next and third generation
A DNA molecule with the base sequence A-G-C-T-C-A was used as a template for the synthesis of
a messenger RNA molecule. Which base sequence correctly represents the corresponding portion
of this RNA molecule?
Answer:
A-G-C-U-C-A
Explanation:
A-G-C-U-C-A is the base sequence correctly represents the corresponding portion of RNA molecule if DNA molecule with the base sequence A-G-C-T-C-A was used as a template. It is because the RNA molecule is formed from the same bases used in DNA except thymine. In RNA molecule, instead of thymine, uracil is attached with other nucleotide bases.
Adenine base pairs with thymine using _________ bonds, and guanine base pairs with cytosine using ________ bonds.
A) two hydrogen, three hydrogen
B) three hydrogen, two hydrogen
C) three phosphoester, two phosphoester
D) two phosphoester, three phosphoester
Adenine base pairs with thymine using two hydrogen and guanine base pairs with cytosine using three hydrogen bonds.
What is DNA?Deoxyribonucleic acid (DNA) is a molecule composed of two strands linked by hydrogen bonds.
In DNA Adenine (A) only pairs with Thymine (T), whereas Guanine (G) pairs with Cytosine (C).
In conclusion, adenine base pairs with thymine using two hydrogen and guanine base pairs with cytosine using three hydrogen bonds.
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Answer:
A) two hydrogen, three hydrogen
Explanation:
Skin color shows a gradation of colors. Is this is a qualitative or quantitative trait? Why?
What pattern of inheritance do we see in skin color?
Hello, can someone please help me with this!
Explanation:
Reconstruction was the period in the united states during which the Civil war took place and the laws were made to provide equity to the slaves ending slavery.
The problem arises due to the reunion of the 11 states of the South to the Union which seceded earlier. Slavery was more practised in the Southern states compared to Northern states.
The Republican party did corruption from 1869 to 1877 which allowed due to which they lost their election of 1877.
In 1877, a special electoral commission was established in favour of Hayes and Democrats took benefits of this condition.
When Hayes was selected, he withdrew the federal troops from the South which allowed the Democrats to gain their seats in South and ended Reconstruction.