Groundwater is susceptible to pollutants. Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use.
After an organism dies, it stops taking in radioactive carbon-14 from the environment. If the carbon-14:carbon-12 ratio ( / ) in a piece of petrified wood is one sixteenth of the ratio in living matter, how old is the rock
Answer:
Age of rock= 22920 years
Explanation:
Carbon-12 isotope is a stable isotope whereas carbon-14 isotope undergoes radioactive decay. The half-life of carbon-14 isotope = 5730 years
Since the ratio of carbon-14 to carbon-12 = 1/16 : 1; number of times carbon-14 isotope decayed n
(1/2)ⁿ = 1/16
(1/2)ⁿ = (1/2)⁴
n = 4 times
time(age) for decay = n * half-life
Therefore, age of fossil = 4 * 5730 years
Age of rock = 22920 years
Sensory System Knowledge Check
1. Which two senses are forms of chemoreception?
Answer:
taste and smell
Explanation:
there is ALSO more not only 2
Answer:
The senses and taste
Explanation:
A biologist is trying to understand the relationship between water and plant growth. She hypothesizes that if she were to give a plant too much water, it would not grow as much. She designs an experiment to test her hypothesis. She plants 2 same-sized plants in the same amount of soil and places them in the same room. She gives Plant A a normal 200 mL of water daily, and gives Plant B a larger 500 mL of water daily. After 1 week, she notices that Plant A grew more than Plant B.
Answer:
The plant A grew better because a water needs normal water but if we put more water to the plants then it will die
is kissingg the homies gae
Answer:
no
Explanation:
only if y’all have socks on
A man has blood group A and his wife has blood group B. Their first child has
blood group AB and the second child has blood group O. What can one conclude
about the blood groups of their future children?
(3)
I
(9)
Answer:
Their future children can have blood group AB, O, A or B
Explanation:
since the husband had blood group= Heterogeneous A means AO
and,
the wife's blood group= Heterogeneous B or BO
so by crossing between them, we get this result.What three changes in motion show that an object is accelerating? *
1 Force, Gravity, and Acceleration
2 It speeds up, it slows down, or changes direction
3 Turning left, right, or going straight
NEED ANSWER ASAP! Aside from safety, which of the following is an additional benefit of understanding animal behavior? A Reduced stress improves the health, fertility, and production of animals B Animals that feel understood are more likely to stifle aggressive tendencies C Well trained animals receive a higher market value than do untrained animals D Handling that have a strong connection to their animals often get breeding rights
Answer:
I think its A.........
Answer:
It's A
Explanation:
section of DNA that provibes instuctions for specific traits
Answer:
Genes.
Explanation:
Genes are small sections of DNA within the genome that code for proteins. They contain the instructions for our individual characteristics – like eye and hair color. A gene is a small section of DNA that contains the instructions for a specific molecule, usually a protein
Monotremes are pouches animals that live in Australia or New Zealand
Answer:
true
Explanation:
In a given strand of dna the number of thymines
A. Is same as the number of uracils
B. Is double the number of guanines
C. Is double the number cytosines
D. Is the same as the number of adenines
Plz answer ASAP
Answer:
D. same number as adenines
Explanation:
As mentioned, adenines match with thymines and cytosines match with guanines, so there will always be the same quantity of guanine and cytosine and the same quantity of adenine and thymine.
Answer:
D
Explanation:
The number as adenines
What part of the cell determines the type and order of the amino acids that make up a protein?
Answer:
The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene's coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.
How would the absence of an atmosphere on Earth affect meteors?
Answer:
Meteors would not cause visible streaks of light
Explanation:
I just got it right in my quiz:)
What is the structure shown in the figure?
Nucleic Acids
Carbohydrates
Proteins
Lipids
Answer:
lipids
Explanation:
Which products do not have scientific studies supporting their claims to be beneficial when used?
A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function
What is the structure shown in the figure?
Proteins
Nucleic acids
Carbohydrates
Lipids
Answer:
2nd to last one
Explanation:
Answer:
It is a protein.
Explanation:
It is an amino acid structure, which make up proteins.
Which products do not have scientific studies supporting their claims to be beneficial when used?
A. Cofactors and coenzymes to support enzyme function
B. Lactase enzymes used in milk sugar digestion
C. Enzyme that aids in the digestion of oligosaccharides
D. Enzymes to promote immune system function
Cofactors do not bind to the enzyme, whereas coenzymes frequently bind loosely to an enzyme's active site and help recruit substrates. Coenzymes are organic compounds. Thus, option A is correct.
What is the importance of Cofactors and coenzymes?Cofactors and coenzymes are substances that support the proper operation of an enzyme or protein.
Cofactors are organic and inorganic substances that help enzymes catalyze processes. The majority of coenzymes are vitamin derivatives that are soluble in water by phosphorylation.
Typically, cofactors are used to provide chemical groups or qualities that are absent from other chemical groups.
A cofactor like ATP, for instance, has a special capacity for transferring energy to power chemical reactions like the activity of enzymes and transport proteins.
Therefore, Cofactors and coenzymes to support enzyme function.
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If the mass of Earth were increased by a factor of 8.00 , by how many times would the force between Earth and the Sun increase?
Answer:They would increased a lot and cause problems.
Explanation:
Which of the following results in folded mountains
Answer:
Fold mountain are created where two or more of Earth tectonic plates are pushed together .
Explanation:
I hope this will help you
What is a map? How are maps used, and what is their purpose?
Answer:
Reference maps show the location of geographic boundaries, physical features of Earth, or cultural features such as places, cities, and roads.
Explanation:
Answer:
It is a representation of a place in which the relationship toward time and space is perceived. The purpose of maps are to provide visual representations of the physical features of the Earth to teach and guide. Maps are used to navigate from one place to another, to know the location of an area or region, and to measure distances from certain locations.
Explanation:
A series of two point crosses is carried out between genes for brown eyes (bw), and arc wings (a), vestigial wings (vg) , ebony body color (e), and curved wings (cv). The following number of nonrecombinant (NR) and recombinant progeny (R) were obtained from each cross.
Genes in cross Progeny (NR) Progeny (R)
a,bw 2224 117
a,cv 2609 823
a,e 3200 3200
a,vg 5172 2379
bw,cv 4614 1706
bw,e 4150 4150
bw,vg 2796 1434
cv,e 3116 3116
cv,vg 2102 305
vg,e 4559 4559
Required:
Using these data form two-point crosses, create a genetic map for these genes, providing the order of the genes and your best estimates of the distances between them.
Answer:
Order of genes: Vg---cv--a---bw---e
Distances among linked genes:
a/bw distance is 4.99 MU bw/cv distance is 26.99 MU a/cv distance is 23.98. a/vg distance is 31.5 MU bw/vg distance is 33.9 MU cv/vg distance is 12.62 MUGene e assorts independently. Its location is symbolical, meaning that it might be in the same chromosome but far away from the rest of the genes, or it might be located in another chromosome.
Explanation:
Due to technical problems, you will find the complete answer in the attached file
Why would lysosomes help a cell MORE THAN the Golgi Body? Think about the functions of the two organelles.
A.
lysosomes pack up proteins that the cells needs and transports them to different parts of the cell
B. lysosomes move throughout the cell and keeps the cell healthy by breaking down waste and toxins
Ο Ο Ο
C.
lysosomes control the activity of the rest of the cell
D. lysosomes storage water and nutrients that the cell needs in order to survive
Which of the following is TRUE about the fossil record? Group of answer choices It is sadly incomplete and lacking in all transitional forms. It gives useful information about environments and the ways past organisms lived. Only animals with hard skeletons are preserved. It is best in deep forests where dead organisms have not been disturbed.
Answer:
It gives useful information about environments and the ways past organisms lived
Explanation:
A fossil is basically any preserved remains or trace of any organism that once lived in the past. Bones, shells and exoskeletons are examples of fossils that can be studied through Paleontology.
From fossil studies, we can tell how long these lives existed on earth and how varying plants and animals are related to one another. We can often find out how and the places they lived and their environments as well.
two products of the krebs cycle are
Answer: The correct answer is NADH and FADH2.
Plz mark brainliest:)
Two products of the Krebs cycle are NADH and FADH2.
What is the Kreb's Cycle?The Krebs cycle is a form of chemical reaction that is meant to convert the energy stored in the body in the form of acetyl CoA to other constituents.
Some products of the Krebs Cycle also known as the Citric acid cycle are Nicotinamide adenine dinucleotide and Flavin adenine dinucleotide. The energy released is from carbohydrates and fat.
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What characteristic properly describes glycogen?
Answer: What are the characteristics of glycogen?
It has a structure similar to amylopectin (a component of starch), but is more extensively branched and compact than starch. Both are white powders in their dry state. Glycogen is found in the form of granules in the cytosol/cytoplasm in many cell types, and plays an important role in the glucose cycle.
Explanation:
Why subject bio is named as multidimensional subject
Answer:
Explanation:These studies generally explore how insights gained from traditional unidimensional biodiversity research differ from those derived when multidimensional approaches are taken
Does a chameleon eat a grasshopper?
Answer:
Explanation:
Chameleons are generally known as insectivores – carnivorous by nature. Depending upon the size and type of the chameleon the type of insects can be different. But, most of the chameleons eat grasshoppers, crickets, silkworms, flies, and cicadas.
Giving brainliest:)
which of the following is considered a condition of the nervous system and not a disease of the nervous system?
celebral palsy
epilepsy
multiple sclerosis
parkinson's
Where does gravity come from? How does an object's mass shape the fabric of
spacetime?
Answer:
Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.
Every object in the universe pulls on the space around it, drawing the fabric of space-time toward its center.
Answer:
gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body. That's what gives you weight.
Every object in the universe pulls on the space around it, drawing the fabric of space-time toward its center. The more massive the object, the more it pulls. ... The physicist John Wheeler captured these odd notions
What type of substance is sodium chloride?
Answer:
it is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.
Explanation:
Answer:
NaCl is an ionic substance, consisting of an ionic bond of the cation Na+ and Cl-. (both ions have charges that are attracted to its opposite)