Which is true about distillation?
Answer: It may leave some chemicals such as herbicides and pesticides in the water.
Which of the following is NOT a way that industry can cause pollution?
A. putting smoke into the air
B. using chemicals that can wind up in the water supply
C. burning substances that put chemicals into the air
D. using detergents that put phosphates into the water
Answer:
A. putting smoke into air
Explanation:
Can't be B. because they are harming the water from dangerous chemicals. Not C. because they are harming the atmosphere from dangerous chemicals. Not D. because phospate is used in fertilisers and if that gets in water it will cause algae bloom a sudden growth in algae which will block light from coming in the river or lake and so hydrophytes(aquatic plants) will die and fish will not get any oxygen so will also die. The algae bloom creates toxic stuff because of competition and will make the river of lake dangerous to be in. We are only left with A. so that is the answer.
Answer:
Its D
Explanation:
Using detergents that put phosphates into water
What is thought to be the first sense that humans develop?.
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how do tears form and why do they have a salty taste?
Answer:
They are produced by the lacrimal glands above your eyes. They drain into tiny holes in the corners of your upper and lower eyelids before traveling through small channels, and down your tear ducts to your nose. Our tears taste salty because of electrolytes.
Which of the following is evidence of evolution?
-Fossil record
-DNA analysis
-Comparative Anatomy
-All of the above
Which is the principal means of delivering oxygen from the blood to other tissues in the body?.
The principal means of delivering oxygen from the blood to other tissues in the body is through the circulatory system.
What is Circulatory system?
This system comprises mainly of the heart and blood vessels such as arteries etc.
The lung delivers oxygen which is pumped by the heart in the form of oxygenated blood to other parts of the body.
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How does sickle cell anemia affect the digestive system?.
The diagram shows different fossil layers found in central Texas. Which other fossil would also most likely be found in layer C?
Why is it important to use plain, unsalted cracker in the cracker test .
Need help. 15pts.
1.) Do you think cell division stops after a new baby is born? Why or why not?
Answer:
No, as the growth into an adult requires the process called cell division and will continue on until your death
True or false Ozone is a gas made up of four oxygen atoms
Answer:
False, is it composed of only three atoms.
How do human activities affect the global ocean?
Answer:
positive affects and negative
Explanation:
Habitat Destruction. Virtually all Ocean habitats have been affected in some way via drilling or mining, dredging for aggregates for concrete and other building materials, destructive anchoring, removal of corals and land “reclamation”.
Why do the pocket mice in the dark lava environment have white underbellies?
Answer:
It is most likely an adaptation or trait they have inherited from their parents.
What is thought to be the first sense that humans develop?.
Answer:
Touch
Explanation:
Because your body will consist of skin at first which will have receptors and neurones to give you the feeling of feeling something when you touch it hence touch is what you develop as a first sense
If dna of a particular species was analyzed and it was found that it contains 27 percent a, what would be the percentage of c?.
DNA of that particular species contains 23 % of C
How can we calculate the percentage of DNA?Adenosine (A) is complimentary with Thymine (T), that means that there is 27% of A + 27 % of T = 54%
To calculate the percentage of Cytosine (C) we need to know that C and Guanine (G) are also complementary. That means that the remaining 46% is half C and half G.
Therefore, the percentage of C is 23%.
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What is the chemical formula for love hormone ?
Please help (punnet square with questions)
Answer:
1. The mothers genotype is tt and the fathers is TT, genotypes could be Tt and the phenotype would be tall
Ultraviolet (UV) radiation is damaging because it __________. View Available Hint(s)for Part A prevents DNA transcription prevents DNA translation causes mutations in DNA deactivates the enzymes needed for DNA replic
Which part of the leaf lets carbon dioxide into the leaf and oxygen and excess
water out of the leaf?
1 chloroplasts
2 epidermis
3 stomata
4 veins
5 none of the above
do stems anchor plants into the earth and draw water and nutrients from the soil?
Answer:
The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground, and carries the water and minerals to the leaves.
Explanation:
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What is the regulation of stable internal conditions inside an organism or a cell?
A. Responding to stimuli
B. Obtaining and using energy
C. Homeostasis
D. Cellular respiration
Answer:
The answer is (C)Homeostasis
which pollen grains are involved in insect pollination
What information would you need to
find a more precise age of dinosaurs
and plants?
QUICKLY PLEASE I NEED HELPPP THANK YOU
Answer:
Scientists determine the age of dinosaur bones by dating the fossils and the surrounding rocks. And plants they check the number of rings gives an overall age of the plant.
Please help meeeee!!!!!!!!
Answer:
b
Explanation:
big brain moment right here
Please use the space below to write a WELL THOUGHT OUT PARAGRAPH as to the question prompt! Question Prompt: Should the US and China be responsible for finding a peaceful solution to this modern day “space race”? Should it be whoever establishes dominance first, sets the rules? Support your answer with details!!!!
Answer:
Yes
Explanation:
The US and CHINA are known as the world power, they have what it takes for finding a peaceful solution to this morden day "space race".
How do plants and animals depend on the atmosphere differently?
because plants give oxygen, nitrogen, and other good gasses into the air. humans
and animals use the atmosphere's gasses like oxygen to breathe and survive.
Some scientists argue that Earth's hydrosphere, atmosphere and biosphere could
NOT exist with the geosphere. On the other hand, they argue Earth's geosphere
could exist without Earth's hydrosphere, atmosphere and biosphere. Do you agree
Answer:
u r right but photosynthesis in plant doesn't affect its respiration so it takes oxygen normally like us but with a pros over animals in common which is photosynthesis ability
help this jaw hard fr fr
Answer:
Explanation:
4. Which is an example of artificial selection?
-There are 4 different species of Hyena
-Red fox and Fennec Fox
-Fancy Pigeon breeds raised by Mike Tyson
-A Peacock and a Peahen
Answer: Fancy Pigeon breeds raised by Mike Tyson
Explanation:
Having 4 species of hyena and having a Red fox and Fennec fox are not artificial selection; they are natural species differences. Having a peacock and a peahen is an example of dimorphism. Fancy pigeon breeds are artificially selected for their most desirable characteristics - humans interfere with natural selection.
Answer:
Fancy Pigeon Breeds raised by Mike Tyson
Explanation:
This is because the selection is being performed by a human for artificial and cosmetic reasons and the pigeons are being bred for their "fanciness." Natural selection happens because an animal needs to adapt for survival reasons, whereas this artificial selection isn't happening "naturally" for survival reasons, only for looks, etc.
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what happens during translation?
a) each strand of DNA is used as a template to produce a complementary strand of DNA
b) each strand of DNA is used as a template to produce a strand of DNA with the same sequence as bases
c) each strand of DNA is used as a template to produce a complementary strand of mRNA
d) codons coded in the mRNA are used to produce a string of amino acids
During translation, codons coded in the mRNA are used to produce a string of amino acids. The correct answer is D.
Translation is the process in which the genetic information encoded in the mRNA molecule is used to synthesize a protein. It takes place in the ribosomes, where transfer RNA (tRNA) molecules carrying specific amino acids bind to the corresponding codons on the mRNA. The sequence of codons on the mRNA determines the sequence of amino acids in the resulting protein.
The process begins with the initiation stage, where the small ribosomal subunit binds to the mRNA and the initiator tRNA recognizes the start codon. Then, the large ribosomal subunit joins the complex, and the elongation stage begins.
During elongation, the ribosome moves along the mRNA molecule, reading each codon and bringing in the appropriate tRNA molecule with its attached amino acid.
The ribosome catalyzes the formation of peptide bonds between adjacent amino acids, forming a growing polypeptide chain. This process continues until a stop codon is reached, signaling the termination stage and the release of the completed protein.
In summary, translation involves the decoding of the mRNA sequence by ribosomes, using tRNA molecules and their associated amino acids to assemble a polypeptide chain according to the instructions carried by the codons on the mRNA. Therefore, the correct answer is D.
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Review the following characteristics for a population in a country:
Both birth and death rates are at extremely high levels
Population is increasing
Which stage of demographic transition does this describe?
a. Stage 1
b. Stage 2
c. Stage 3
d. Stage 4
Answer:
A) Stage 1
Explanation:
Demographic transition has to do with the changing pattern of factors that impact population such as birth rates, death rates as the population moves from regime to regime. The transition is in four stages:
Stage 1: which is characterized by high high birth and death rates. also known as pre-transition stage.Stage 2: Characterized by falling death rate but continued high death rate. Also known as early transition stage.Stage 3: characterized by a decline in birth rate and deceleration of population growth. It is also known as late transition period.Stage 4: Characterized by low birth and death rate. Negligible population growth. Also known as post-transitional period.