learn and observe air resistance by throwing objects from considerable height a; tissue paper b: plastic spoon c: stainless steel spoon take a record of your findings and observations and jot them down.
Answer:
Speed: Tissue fell slowest(lowest mass and large surface area acts as parachute)
Plastic spoon fell pretty quick
And the stainless steel spoon fell the fastest because of the weight and small mass
The tissue is the only item out of the 3 that makes 0 noise when it hits a surface.
Which part of the body contains enzymes that break down starch into simple sugars? A.mouth B.brain C.stomach D.liver
The part of the body that contains enzymes that break down starch into simple sugars is the mouth (option A).
What is digestion?Digestion is the process whereby ingested food is converted into substances that can be utilized by the body.
Digestion involves the breakdown of large molecules of chemical substances in food into simpler molecules that can be absorbed.
Enzymes are responsible for the chemical degradation of food substances. A specific enzyme in charge of breaking down starch is called amylase and it is present in the saliva of the mouth.
Therefore, the part of the body that contains enzymes that break down starch into simple sugars is the mouth
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How do plants use carbon dioxide? A. To build proteins. B. They store it as fuel in limestone deposits. C. To produce sugars. D. They release it as waste.
Answer:
C) To produce sugars
Explanation:
Through photosynthesis, plants convert carbon dioxide and water into sugar.
Have a nice day! ♡
Question 16 of 34
Which of the following terms means "a very large molecule made
smaller molecules joined together"?
up
of
many
A. Carbohydrate
B. Lipid
C. Macromolecule
D. Nucleic acid
Answer:
It should be macromolecule :)
Explanation:
Jika Kita ingin memasuki gua yang dalam ,Kita digalakkan untuk membawa obor api selain lampu suluh sebagai penunjuk kehadiran oksigen.Apakah kelebihan menggunakan obor di dalam gua?
ok so this to inform you that i have to get b points thank you
Which strand of mRNA would be made during transcription using the DNA
strand shown below?
CTG ATA
A. GỤC TUT
B. GAC UAU
C. GAC TAT
D. CTG ATA
Answer:
its GAC UAU give me some likes lol
Explanation:
What type of galaxy is the Milky Way pictured to the right? A. Irregular B. Elliptical C. Supernova D. Spiral
Answer:
D. spiral
Explanation:
Answer:
Spiral
Hope this helps ! <3
An example of mitosis at work is a leaf
a. turning yellow.
b. growing.
c. taking in carbon dioxide.
d. performing photosynthesis.
Answer:
The answer is B, Growing
Explanation:
Mitosis is the process of dividing a cell and its nucleus into two cells which each have their own nucleus. An example of mitosis is the way the skin cells covering a child's body all multiply while they are growing.
How is Gaucher disease treated?
Comparing and Contrasting Earth and Moon Orbits
Warm-Up
Use what you know about the orbits of Earth and the moon to sort the phrases into the correct category.
travels around the Sun
Earth's Orbit
Moon's Orbit
takes 365,25 days
takes 27.3 days
travels around Earth
Answer:
[tex]\begin{array}{lcl}Earth's \ Orbit&&Moon's \ Orbit\\Travels \ around \ the \ Sun &&Travels \ around \ Earth\\Takes \ 365.25 \ days&&Takes \ 27.3 \ days \end{array}\right][/tex]
Explanation:
The Earth is a planet which is a tern used to describe large bodies that revolves around a star.
The star around which the Earth revolves or travels around is the Sun, and the path of the Earth's motion is known as the Earth's orbit. The time it takes the Earth to travel round the Sun is 365 1/4 (365.25) days
The Moon is a natural satellite of the Earth, therefore, the Moon travels or revolves round the Earth. The Moon is about 27% the size of the Earth and it takes the Moon about 27.3 days to travel around the Earth.
Which of the following is a disadvantage of using solar energy?
A. Solar energy produces greenhouse gases.
B. Solar energy is available only in the summer
C. Solar panels do not work very well.
o
D. Solar panels are expensive.
Answer:
d. Solar panels are expensive.
Explanation:
All the other things are not right.
HELP
Which of the following does NOT incorporate phosphorus?
A. Phospholipids
B. Nucleotides
С. АТР
D. Carbohydrates
Answer:D
Explanation:
what are the 4 pairs of DNA bases that form in the double helix?
Answer:
Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by bonds between the bases, adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.
Answer:
Double Helix
Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by bonds between the bases, adenine forming a base pair with thymine, and cytosine forming a base pair with guanine..
A gene with the sequence ATTCATTCA underwent duplication after a few generations. Which sequence represents this gene after the mutation?
Answer:
The sequence would be ATTCATTCA.
Explanation:
Usually, when a sequence is duplicated, one of them becomes a non-coding. It's just like a computer. There can only be one specific file, or else a duplicated one will just replace the existing one, if you allow the file to do so. Same with DNA. This is why most of our DNA have no function and why we lost genetic abilities such as being able to produce our own Vitamin C.
So instead of the new gene being ATTCATTCAATTCATTCA, it's simply ATTCATTCA. You simply cannot have duplicates, just like computer files. I wish I could share an amazing video by PBS Eons giving a great explanation about genes and stuff, but sadly Brainly doesn't like such stuff, so just search up in ㄚㄖㄩㄒㄩ乃乇 (ebuTouY) "genes we lost along the way" and it should be the first video that pops out. Trust me, it's a great video, it's much better than my explanation.
An astronomer measures the distance to two stars using the parallax method. When comparing the placement of the stars six months apart, the star that is further away: A. Changes position the most B. Changes position the least C. Appears brighter D. Appears dimmer
Answer:
I would say A but im not 100% sure
Explanation:
The parallax method uses the angle to measure the distance of the objects in space. When the method is used 6 months after then, the star further away changes its position the most. Thus, option A is correct.
What is the parallax technique?The parallax method determines the displacement of the object in the space when viewed from the line of sight and is determined by the angle of the inclination of the shift.
It is used to measure the distance of the planet to the nearby stars and is measured again after six months. It is the change of the position of the object or the celestial body with respect to the observer's position.
Therefore, the star located farthest will change its position the most.
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what molecules provides the energy to make glucose through photosynthesis?
Answer:
Sugar molecules. What molecules create sugar you ask 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen
Explanation:
Plants convert energy from sunlight into sugar in a process called photosynthesis. Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen.
Cellular respiration is a mirror image of photosynthesis, meaning that the chemical reaction is the reverse. Below is the chemical reaction for photosynthesis. Which of the following would be the correct chemical reaction for cellular respiration?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
A. 6 CO2 + 6 H2O → C6H12O6 + 6 O2
B. 6 CO2 + 6 H2O → 6 CO2 + 6 H2O
C. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O
D. C6H12O6 + 6 O2 → C6H12O6 + 6 O2
Answer:
its (C)
Explanation:
C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration.pls mark me as branliest I would really appreciate that.hope it helped u
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type
of limiting factor causes this?
O density dependent
O density independent
O population dependent
O population independent
Answer:
Density independent is the correct answer
The type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.
What are density-independent factors?Density-independent factors are environmental factors that affect populations regardless of their size or density. These factors can include natural disasters such as forest fires, floods, hurricanes, droughts, and other extreme weather events. Other examples of density-independent factors include habitat destruction, pollution, and climate change. In the scenario described, a forest fire destroyed an area, which can lead to the decline of both tree and bird populations. The fire could kill the trees and destroy their habitats, making it difficult for the surviving trees to grow or reproduce.
Hence, the type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.
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Please help me, im on a pretest..
How are photosynthesis and cellular respiration related?
A. Photosynthesis releases energy, while cellular respiration stores energy.
B. Photosynthesis produces water molecules, while cellular respiration splits water molecules apart.
C. Cellular respiration is the process animals use to produce glucose, while photosynthesis is the process plants use to produce glucose.
D. Cellular respiration breaks down glucose, while photosynthe produces glucose.
Answer:
I would say C. but i don't think it will be
A sonar pulse has a wavelength of 3.2 cm and a speed of 1,500 m/s in water. What is the frequency of the pulse? (
Explanation:
The universal wave equation states that the velocity of a wave is the product of its wavelength and its frequency.
Mathematically speaking,
∣
∣
∣
∣
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
a
a
v
=
λ
f
a
a
∣
∣
−−−−−−−−−−−
where
−−−−−
:
v
=
velocity of wave (metres per second)
λ
=
wavelength (metres)
f
=
frequency (hertz or reciprocal seconds)
Step 1
Convert the given wavelength from centimetres into metres.
3.0
i
c
m
×
m
100
i
c
m
=
3.0
c
m
×
m
100
c
m
=
0.030
i
m
Step 2
Rearrange for frequency,
f
, in the universal wave equation.
v
=
λ
f
Becomes,
f
=
v
λ
Step 3
Substitute your known values to solve for the frequency of the pulse.
f
=
1500
i
m
s
0.030
i
m
f
=
50000
i
H
z
Rounding off the value to two significant figures,
f
=
∣
∣
∣
∣
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
a
a
5.0
×
10
4
i
H
z
a
a
∣
∣
−−−−−−−−−−−−−−−−
The frequency of the pulse is 4.6×[tex]10^4[/tex], when the wavelength of the sonar pulse is 3.2cm. and has a speed of 1,500 m/s in water.
What do you mean by Sonar?The sonar may be defined as a device that is used to find the distance, direction, and speed of underwater objects like water hills, valleys, icebergs, submarines, sunken ships, etc.
The universal wave equation states that the velocity of a wave is equal to the products of its wavelength and frequency.
v = λf
∴ f = v/λ
1500/0.032 = 46,875 Hz.
f = 4.6×[tex]10^4[/tex] Hz.
Therefore, the frequency of the pulse is 4.6×[tex]10^4[/tex], when the wavelength of the sonar pulse is 3.2cm. and has a speed of 1,500 m/s in water.
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.What do you think is the most unusual type of protist or the most unusual
Feature of protists? Why?
Answer:
Saprolegnia, type of water mold
Investigators interested in studying the activation of apoptosis inject cytochrome c into the cytosol of two types of mammalian cells: cells that are normal and cells in which Bak and Bax have been inactivated by mutation. How would these cells be predicted to respond? Question 3 options: The normal cells will undergo apoptosis and the mutant cells will continue to grow. The mutant cells will undergo apoptosis and the normal cells will continue to grow. Neither cell type will undergo apoptosis, so both will continue to grow. The normal cells will undergo apoptosis and the mutant cells will die by necrosis. Both cell types will undergo apoptosis.
Answer: Both cell types will undergo aptosis
Explanation:
cells lacking both Bax and Bak, but not cells lacking only one of these components, are completely resistant to tBID-induced cytochrome c release and apoptosis. Moreover, doubly deficient cells are resistant to multiple apoptotic stimuli that act through disruption of mitochondrial function: staurosporine, ultraviolet radiation, growth factor deprivation, etoposide, and the endoplasmic reticulum stress stimuli thapsigargin and tunicamycin. Thus, activation of a “multidomain” proapoptotic member, BAX or BAK, appears to be an essential gateway to mitochondrial dysfunction required for cell death in response to diverse stimuli.
Which of the following is TRUE about the law of independent assortment?
A.The homologous chromosomes are separated.
B.The maternal chromosomes are not separated in one pole.
C.The paternal
chromosomes are not separated in one pole.
D.All of the choices
Answer:
A
Explanation:
homologous chromosomes seperate during indeendent assortment. Its not D or C, since independent assortment occurs with seperation and B makes less sense
Nucleic acids are chains of ____ linked by peptide bonds
a. nucleotides
b. amino acids
c. proteins
d. nuclei
Answer:
option (c) protein is your answer ans..
Which factor can decrease the rate of a chemical reaction?
Cellular respiration is a mirror image of photosynthesis, meaning that the chemical reaction is the reverse. Below is the chemical reaction for photosynthesis.
Which of the following would be the correct chemical reaction for cellular respiration?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
A. 6 CO2 + 6 H2O → C6H12O6 + 6 O2
B. 6 CO2 + 6 H2O → 6 CO2 + 6 H2O
C. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O
D. C6H12O6 + 6 O2 → C6H12O6 + 6 O2
And if your kind enough would you mind marking me as branliest plz plz
The chemical reaction for cellular respiration will be C6H12O6 + 6 O2 → 6 CO2 + 6 H2O, the correct option is C.
What is cellular respiration?Cellular respiration is a succession of chemical reactions that break down glucose to produce ATP, which can then be used as energy to power a variety of reactions throughout the body.
Cellular respiration consists of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.
It is mirror image of photosynthesis, its chemical reaction is:
[tex]C_{6} H_{12}O_{6} + 6 O_{2}--------- > 6CO_{2}+6O_{2}[/tex]
Thus, the correct option is C.
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what formed the alps mountains
Answer:
The Alps arose as a result of the collision of the African and European tectonic plates, in which the western part of the Tethys Ocean, that was formerly in between these continents, disappeared.
Answer:
The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn.
Explanation:
Hemophilia is a serious bleeding disorder caused by a sex-linked recessive allele. What are the chances of a normal male and a female who is a carrier for hemophilia having a child with hemophilia?
0%
1/4 or 25%
1/2 or 50%
3/4 or 75%
Answer:
‼️A) 1/4 25% Chance‼️
Explanation:
If she gets the X chromosome with the hemophilia gene, she will have hemophilia. A man who has hemophilia and a woman who is a carrier have: a 25% (one in four) chance of having a son with hemophilia.
Answer:
50%
Explanation:
the sex linked trait is to the x chromosome but only one. that means the female would pass 50% the allele 50% of the time
Which of the following is NOT an importance of
cell division?
A. Repair
B. Reproduction
C. Temperature Regulation
D. Growth
Answer:
C
Explanation:
Have a nice day
Which of the following most accurately describes most scientists' current understanding of the evolution of humans?
A: Humans have not evolved.
B: Humans, chimpanzees, and other primates share a common ancestor.
C: Gorillas evolved from humans and chimpanzees.
D. Humans evolved from gorillas and other primates.
Answer:
B: Humans, chimpanzees, and other primates share a common ancestor.
Explanation:
According to the theory of evolution, organisms of a particular species change in their characteristics over several generations because of the process of natural selection. The idea of evolution derives from the fact that all species are related and gradually change over time.
Species which are somewhat related all share a common ancestor. Hence, humans, chimpanzees, and other primates all share a common ancestor.
