Answers
i think so :)
Related Questions
B. Suspension c. Solution
D. Saturated solution
5. Which is a solvent in a cup of coffee?
A. coffee
B. creamer
c. sugar
D. water
6. Why should you shake the liquid medicine before drinking?
A. To make it effective. C. To mix the suspended particles at the bottom.
B. To make it taste better. D. To make it clear.
7. What should be done in a liquid medicine before drinking it?
A. Drink right away after opening. C. Let it stand for 3 minutes
B. Shake well
D. All of these
8. Which of the following is called a universal solvent?
A. water 8. gasoline C. juice D. diesel
m-Directions: For items 1-5 What method are you going
Answers
Answer:
5.c 6.c 7.b 8.a
Explanation:
I hope it helps u :)
PLEASE HELP!!!!!!!!!!
Answers
Answer:
3 (dominant) 1 (recessive)
Explanation:
how do genes create traits in a organism
Answers
Answer:
Like chromosomes, genes also come in pairs. Each of your parents has two copies of each of their genes, and each parent passes along just one copy to make up the genes you have. Genes that are passed on to you determine many of your traits, such as your hair color and skin color.
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The hormone insulin is secreted by the pancreas. Which activity is MOST likely to
trigger an increase in the levels of insulin circulating in the blood?
O A. driving
B. eating
O C. jogging
OD. sleeping
Answers
Answer:
Eating
Hope this helps! <3
What are the nervous and endocrine systems controlling to maintain homeostasis?
O A. the body's nitrogen levels
B. the body's internal environment
OCthe body's external skin and hair
0
D. the body's support for movement
Answers
Answer:
B. the body's internal environment
Explanation:
Homeostasis is defined as the process of maintaining the internal environment of the body.
All the systems work together to maintain homeostasis. The nervous and endocrine systems are two important system that helps in maintaining homeostasis.
The nervous and endocrine systems are linked with hypothalamus that controls the internal environment of the body by releasing and inhibiting hormones. These hormones keep pH, temperature, and other internal conditions stable that support homeostasis.
Hence, the correct answer is "B. the body's internal environment".
Explain why the cell membrane is the brain of the cell, as opposed to the nucleus.
Answers
Answer:
because it holds the information needed to conduct most of the cell's functions.
Cell membrane controls the transport of molecules across the cell and its external environment, Thus, it is called as the brain of the cell.
Why is cell membrane important?Cell membrane regulates most of the cellular activities through the property of selective permeability.
It is responsible for maintaining the cellular equilibrium through influx and efflux of ions and molecules.
There are various receptors present on the cell membrane which regulates the vital biochemical processes taking place in the body.
Cell membrane functions in the cell-cell recognition and cell signalling through various receptors.
Cell membrane is important in regulating body homeostasis. It offers the protective environment to the cell.
Control and regulation of activities is processed through brain.
Therefore, cell membrane is considered as the brain of the cell.
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state two features of diffusion that do no apply to active transport
Answers
What does active transport require that diffusion does not? Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
What two features distinguish active transport from diffusion? An example of diffusion is oxygen moving from the airways to the lungs - there is very little oxygen in the lungs but lots in the air. Active transport is the movement of particles from an area of low concentration to an area of high concentration. This process requires energy (ATP)
What are the 2 key features of active transport? There are two types of active transport: primary active transport that uses adenosine triphosphate (ATP), and secondary active transport that uses an electrochemical gradient. An example of active transport in human physiology is the uptake of glucose in the intestines.
Of the parts of the electromagnetic spectrum listed below, which has the shortest wavelength?
A.
visible light
B.
infrared radiation
C.
radio waves
D.
X-rays
Answers
The stage in the mentrual cycle usually lasting from 3to five days when fertilization does not occur.
A.ovulation
B.stimulation
C.menustration
D.reproduction
Answers
Hope this helps!
Good luck!
6. If a DNA sequence reads TCCA, a deletion mutation would look like...
a. TCTA
b. TCA
C. TCCCA
d. UCCA
I
I
Answers
Explanation: It would be C because a deletion mutation involves the loss of genetic material, therefore C is the only option that fits the definition.
Hope this helps
Why is earth considered an open system and a closed system? (Site 1)
O
Answers
Answer:
Open system: has the transfer and exchange of matter and energy in the system's surroundings.
Closed system: has a limit to how much matter is exchanged.
All of Earth's systems are considered open systems, but as a whole, they are closed.
Explanation:
What is the main reason to put a telescope in space?
A.
It is much closer to the stars.
B.
It can receive star light that cannot reach Earth.
C.
Light reaching it is not affected by the movement of air.
D.
It can detect objects behind the moon.
Answers
Answer: D
Explanation:
The main reason we put telescopes into space is to get around the Earth's atmosphere so that we can get a clearer view of the planets, stars, and galaxies that we are studying. Our atmosphere acts like a protective blanket letting only some light through while blocking others.
Which of the following tropisms are the
same as geotropism?
a. thigmotropism
b. hydrotropism
c. phototropism
d. gravitropism
Answers
Answer:
d
Explanation:
d.gravitropism as it's both going downwards
HELP!!!!!!!!!
Which kind of molecule provides building blocks for tissues, transports
other molecules, and helps regulate certain reactions in the human body?
A. carbohydrates
B.lipids
C. proteins
D. nucleic acids
Answers
Answer:
C : Proteins
Explanation:
(Can I get brainlest?)
Proteins are the molecules that provide building blocks for tissues, transports other molecules, and helps regulate certain reactions in the human body. The correct option is C.
What are proteins?A protein is a found naturally, extremely complex substance composed of amino acid residues linked together by peptide bonds.
Proteins are found in all living life forms and contain a variety of important biological compounds such as enzymes, hormones, and antibodies.
Proteins are massive complex molecules that perform numerous important functions in the body.
They are essential for the structure, function, and regulation of the body's tissues and organs and do the majority of the work in cells.
Proteins are molecules that serve as foundation for tissues, transport other molecules, and aid in the regulation of certain bodily reactions.
Thus, the correct option is C.
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Which statement best explains the ideas of phyletic gradualism and punctuated equilibrium?
A. Phyletic gradualism isn't supported by the fossil record, but punctuated equilibrium is
B. Phyletic gradualism states that many species evolve rapidly at specific points in time, and punctuated equilibrium states that speciation occurs constantly over time
C. Phyletic gradualism states that speciation occurs constantly over time, and punctuated equilibrium states that many species evolve rapidly at specific points in time
D. Phyletic gradualism is supported by the fossil record, but punctuated equilibrium isn't
Answers
A. Phyletic gradualism isn't supported by the fossil record, but punctuated equilibrium is
Punctuated equilibrium and phyletic gradualism are two opposing evolutionary tendencies that can be seen in the geological record. Species in punctuated equilibrium tend to demonstrate morphological stasis between rapid speciation episodes, whereas species in phyletic gradualism change more frequently. "Phyletic gradualism isn't supported by the fossil record, but punctuated equilibrium is," says the statement that best summarizes the ideas of phyletic gradualism and punctuated equilibrium.
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A piece of alien DNA cannot multiply itself in the progeny cells of the organism because:
a. It has no the sequence called Origin of replication (ori) needed for starting replication.
b. A piece of DNA will be denatured and damaged soon as it has no stability.
c. A piece of DNA is easily unwound and the H bonds between nitrogen bases are broken.
d. Both A & B.
Answers
I will mark brainiest for correct answer
A pelican has a dip netting beak. How does it eat?
A. It traps fish between its upper and lower mandible much like a scissor,
B. It takes a big gulp of water with fish and filters the water off of the fish before swallowing,
C. It opens holes in trees and eats insects beneath the surface of the wood,
D. It burrows in the mud to find insects and other small invertebrates beneath the surface
Answers
Answer:
b is correct
Explanation:
Answer:
b they scoop them and then drain the water a swallow all remaining animals
What is the primary mechanism associated with the role of fluoride in prevention of dental caries? a. Fluoride increases calcium absorption, which increases crystal formation of teeth b. Fluoride increases salivation which aids in the removal of bacteria and the foods needed to sustain bacterial growth c. Decay is reduced due to the inhibitory effects of fluoride on growth of bacteria on the teeth d. Fluoride becomes incorporated into the crystalline structure of teeth, making them less susceptible to decay e. Decay is inhibited due to neutralization of organic acids produced by bacteria on the teeth
Answers
Answer:
d. Fluoride becomes incorporated into the crystalline structure of teeth, making them less susceptible to decay
Explanation:
Dental caries results when cariogenic (caries-causing) bacteria metabolize carbohydrates or sugars present in the mouth for their energy needs, producing organic acids as byproducts, thus lowering the pH of the plaque biofilm.
The hydroxyapatite of tooth enamel is composed mainly of phosphate ions (PO₄³⁻) and calcium ions (Ca⁺). Under normal conditions, there is a stable equilibrium between the calcium and phosphate ions in saliva and the crystalline hydroxyapatite. At low pH (acidic conditions), there is a shift in equilibrium resulting in the dissolution of hydroxyapatite from tooth enamel, a process known as demineralization. A reverse process called remineralization (the process of incorporation of minerals in tooth enamel) occurs when the saliva, acting as a buffer elevates pH. When equilibrium is shifted to favor continued demineralization, dental caries results.
However, when fluoride is present in saliva, fluorapatite, rather than hydroxyapatite, forms during the remineralization process as fluoride ions replace hydroxyl groups in the formation of the apatite crystal lattice.
Fluorapatite is less soluble than hydroxyapatite making it more resistant to demineralization, even under conditions of low pH. Thus, fluoride acts as an effective anticaries agent.
8.
Waste products that are easily broken down by nature are
hazardous
toxic
biodegradable
recyclable
Answers
How many electrons are transferred in one ionic bond between sodium and chlorine?
a. 3
b. 2
c. 4
d. 1
Answers
Answer:
c i think so if is not correct i am sorry
which of the following does not affect the rate of photosynthesis a) temperature b) light intensity c) soil d ) water intake
Answers
Answer:
a) temperature
Explanation:
took test and got right
light intensity does not affect the rate of photosynthesis .
what is photosynthesis ?The process in which plants, algae and certain bacteria use light energy of sunlight, water, carbon dioxide and convert light them into chemical energy and starch. called as photosynthesis.
Photosynthesis occur in special organelles named chloroplast which has its own DNA, genes and hence can synthesize their own proteins.
Chloroplasts have stroma, fluid, and stack of thylakoids known as grana, three types of chlorophyll such as chlorophyll a, chlorophyll b, and carotenoids.
Oxygenic photosynthesis is commonly observed in plants, algae and cyanobacteria where electrons are transferred from water to carbon dioxide by using light energy, to produce energy, oxygen is produced along with carbohydrates.
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A group of students used this diagram to classify three organisms into different kingdoms which table identifies the three kingdoms
Answers
Answer:
Answer is c. fungi, protista and plantea
which one contains many organelles with different functions prokaryotic cell eukaryotic cell
Answers
Answer:
Eukaryotic Cell
Explanation:
Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.
Is hydrogen an atom or molecule
Answers
y= 4/3x -8
4x-3y=24
Answers
Answer:
(x,y)= (x, 4/3x-8)
Explanation:
How did the crickets lose their ability to chirp?
Answers
Answer:
By a mutation that altered the shape of their wings, making them incapable of producing the chirping noise. The feat was achieved over less than 20 generations, a mere evolutionary blink of an eye, and, with the crickets living just a few weeks, a very rapid process.
Explanation:
Answer:
The change seems to have been caused by a mutation that altered the shape of their wings.
Explanation:
Makes them incapable of producing the chirping noise. The feat was achieved over less than 20 generations, a mere evolutionary blink of an eye, and, with the crickets living just a few weeks, a very rapid process.
Plant growth is the result of cells dividing during _____.
plss help
Answers
Answer:
Plant growth is the result of cells dividing during mitosis.
Explanation:
Mitosis is the process in which cells divide for cell growth or repair. All the cells, as a result of mitosis will have the same number of chromosomes as of the cell at the start.
Answer:
mitosis
Explanation:
Hope this helps
Because it's most resistant to deterioration, which type of molecule is most often found in molecular fossils?
A. RNA molecules
B. Protein molecules
C. DNA molecules
D. Lipid molecules
Answers
Answer:
Of the four main groups of organic molecules, Lipids are the most resistant to decay. They are also highly insoluble in water. All cells produce this type of organic compound to be used in their membranes and in energy storage. These type of organic molecules are found in kerogens
Che healthy way to lose weight is to...
Drink a lot of water
O Take in slightly less calories than you use daily
O Eat no fats
O Eat no carbohydrates
1 point
Answers
Answer:
O Take in slightly less calories than you use daily
Explanation:
It has been shown that the healthiest diets to lose weight are those where individuals consume fewer calories than normal and simultaneously by taking care of consuming all essential nutrients in adequate quantities.
The essential nutrients to be consumed in a healthy diet include:
1- macronutrients, especially proteins (amino acids) to avoid muscle loss as well as normal metabolic functions, and fats, which are required to absorb some micronutrients (i.e., liposoluble vitamins)
2- micronutrients, which include vitamins (e.g., vitamin D, vitamin C, etc) and minerals (e.g., iron, calcium, etc).
Protein synthesis consumes four high-energy phosphate bonds per added amino acid. Transcription consumes two high energy phosphate bonds per added nucleotide. Calculate how many protein molecules will have been made from an individual mRNA at the point when the energy cost of translation is equal to the energy cost of transcription. Assume that the nucleotides in the coding portion of the mRNA constitute 5% of the total that are transcribed.
Answers
Answer:
30 protein molecules per mRNA molecule
Explanation:
In this problem, it is necessary to have into account that the transcriptional process requires six (6) phosphate bonds to synthesize one (1) codon (i.e, each three nucleotides), and also discards 95% more energy to make mRNA, it means 19 times this amount of energy >> 6 x 19 = 114 bonds. In consequence, transcription requires 120 phosphate bonds (6 + 114 = 120), while translation requires four (4) phosphate bonds per codon. From this deduction, it is possible to find the number of protein molecules synthesized with regard to the energy cost of the translation process and the transcriptional process >>> 120 bonds (transcription) /4 bonds (translation) = 30 protein molecules.