Friction is a force exerted in the direction opposite to an object's motion, which means friction will cause an object's
velocity to decrease.
-true or false?
Answer:
true
Explanation:
think of a box, if you push it on a smooth floor without friction it would glide pretty easy
but put it on say carpet, the friction from the carpet would not allow the box to move very far
that's also how brakes work, they apply friction to the wheels in order to get them to reduce motion
What makes this an ideal location for a murderer to dump a body? Select ALL that apply
there is only one road in/out making it easy to see if someone else is comming
there is an abundance of wildlife
it is an urban area
its a remote area
Answer:
its remote
Explanation:
Which of these minerals and mineral resources is composed of the remains of plants that lived and died millions of years ago? A. Coal B. Aluminum C. Salt D. Petroleum
Answer:
Option A.
Explanation:
Coal is the correct answer because the coal is an organic sedimentary rock. These are formed from the dead remains of plants that were buried millions of years back.
2. In a classroom experiment, you ground up some spinach in distilled water and filtered the liquid onto a piece of filter paper. The isolated organelles absorbed carbon dioxide and released oxygen. Which cellular organelle was most likely on the filter paper, and what process was it performing?
Answer:
Mitochondria; cellular respiration.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Basically, mitochondria is one of the cell organelles found in all living organisms and it is known as the powerhouse. Therefore, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.
In a classroom experiment, you ground up some spinach in distilled water and filtered the liquid onto a piece of filter paper. The isolated organelles absorbed carbon dioxide and released oxygen. Thus, the cellular organelle which was most likely on the filter paper is mitochondria and the process it was performing is called cellular respiration.
Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP).
Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.
Which are ways virus software can affect a computer system? (Choose two)
оооо
Gather personal information and transfer it
Implicate a DoS attack
Erase or corrupt data
Fry the motherboard
Help
When referring to mitosis where do the Chromosomes from during metaphase
Answer:
During metaphase, the cell's chromosomes align themselves in the middle of the cell through a type of cellular "tug of war." The chromosomes, which have been replicated and remain joined at a central point called the centromere, are called sister chromatids.
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Answer:
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The initial step in the formation of an aminoacyl-tRNA is Group of answer choices esterification of the tRNA activation of the tRNA by reaction with ATP activation of the amino acid by reaction with ATP interaction of the mRNA with the tRNA
Answer:
The initial step in the formation of an aminoacyl-tRNA is activation of the amino acid by reaction with ATP
Explanation:
In protein synthesis, the first step involves the formation of an aminoacyl-tRNA. This reaction is catalyzed by the the Mg²⁺-dependent enzymes known as aminoacyl t-RNA synthetases and occurs in two steps.
The first step of the reaction of the formation of an aminoacyl-tRNA is the activation of the amino acid by the attachment of an AMP molecule formed from the hydrolysis of ATP to AMP and pyrophosphate. The aminoacyl adenylate intermediate is bound to the enzyme in this initial step. Subsequently, in the second step of the activation of the amino acid, the aminoacyl adenylate intermediate is then transferred to its specific tRNA. The pyrophosphate formed in the first step is hydrolyzed to 2 phosphate molecules by a pyrophosphatase.
The overall reaction step is illustrated below:
Amino acid + tRNA + ATP -----> aminoacyl-tRNA +AMP + 2Pi
Choose all the answers that apply. The atmosphere: is mostly made of nitrogen is weightless protects earth from harmful radiation contains water vapor is affected by events in the hydrosphere
Answer:
The atmosphere: is mostly made of nitrogen, protects the Earth from harmful radiation, and contains water vapor.
Explanation:
The atmosphere can be defined as the gassy wrapping covering a planet, in this case, the Earth.
The Earth´s atmosphere is composed of water vapor, N₂ (78.08%), O₂ (20.95%), Ar (0.93%), CO₂ (~0.03%), and Oz (0.01%). There are also other gases in reduced concentrations. Water vapor might reach 4% of the atmosphere near the Earth's surface. Water vapor and ozone absorb infrared radiation and are important in defining the terrestrial clime and keeping the environmental conditions needed for life. They protect the Earth from harmful radiation.
The atmosphere is composed of different layers: troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The troposphere is the most inferior layer, in contact with the Earth´s surface, composing almost 90% of the atmospheric mass.
Answer:
is mostly made of nitrogen, protects the Earth from harmful radiation, and contains water vapor
Explanation:
In the oxygen–carbon dioxide cycle,
a. animals produce oxygen used by plants for photosynthesis.
b. animals produce oxygen used by plants for respiration.
c. animals produce carbon dioxide used by plants for photosynthesis.
d. animals produce carbon dioxide used by plants for respiration.
Answer:
C
Explanation:
Animals produce carbon dioxide as a byproduct of cellular respiration. Plants use the carbon dioxide through photosynthesis to produce oxygen.
Animals produce carbon dioxide as a byproduct of cellular respiration. Plants use the carbon dioxide through photosynthesis to produce oxygen, thus, animals produce carbon dioxide used by plants for photosynthesis.
What is the oxygen and carbon dioxide cycle called?Photosynthesis is the method by which plants use sunlight, water, and carbon dioxide to make oxygen and energy in the form of sugar.
Thus, option "C" is correct, animals produce carbon dioxide used by plants for photosynthesis.
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Scientists are observing a population of insects living in a warm, dry climate over time. Which piece of evidence would not indicate evolution in the population has occurred?
Choose the correct answer.
The phenotypes of the population remain the same.
The distribution of traits in a population has shifted.
The population is better adapted to survive in its environment.
The allele frequency of a particular form of a gene has increased.
Answer:
1st One
Explanation:
1st One
Answer:
A
Explanation:
It would be A because the rest are all evolution
Which is the best example of a response to an external stimulus?
A.drinking water after a long run
B.avoiding the sun by looking for food at night
C.a hungry bear hunting for food
D.falling asleep in the treetops of a forest
Answer:
A
Explanation:
Tamika inflates and ties off a balloon in her classroom and then takes it outside on a cold, winter day. Immediately, she notices that the balloon has gotten a little bit smaller. Why does this occur?
A. because there are fewer molecules in the balloon outside
B. because the air pressure is significantly higher when it is colder
C. because the molecules in the balloon have slowed down with the temperature
D. because the molecules shrink in size when exposed to the colder, outside air
Answer:
Your is C. because the molecules in the balloon have slowed down with the temperature
Explanation:
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The volume of this fish tank is _____ Liters.
l=50 cm h=12 cm w=20 cm
Answer:
The volume of fish tank is 12 liters.
The volume of the fish tank is 12 Litres.
How to find volume?Volume of the fish tank is lengh×width×height
⇒50cm×12cm×20cm
⇒ 12000 cm³
How to convert cubic centimeters into litres?
1 cm³=1 ml
12000 cm³= 12000ml
1000 ml= 1 Litre
1 ml = 1/1000 Litres
∴ 12000 ml = (1/1000)×12000
⇒ 12 Litres
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A diagram of a wave is pictured below. What does the length from A to B represent?
Answer:
wavelength
Explanation:
the distance between two successive crests or troughs of a wave is called wavelength
The diagram shows the distance between two successive crests or troughs of a wave, and it is called wavelength.
What is wavelength?Typically, wavelength is measured from crest to crest or from trough to trough in transverse waves with points vibrating at right angles to the direction of their advance.
It is measured from compression in longitudinal waves with points vibrating in the same direction as their advance.
It is a property of both traveling waves and standing waves, as well as other spatial wave patterns.
Therefore, It is the distance between two successive corresponding locations of the same phase on the wave, such as two nearby crests, troughs, or zero crossings.
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Some soils are made mostly of loess. Loess is silt-sized sediment deposited by ________. *
1 point
wind
rivers
ocean waves
Answer:
Explanation:
Loess is a sediment that is formed from silt deposits due to wind. The composition of the silt is clay and sand. The components are cemented together by calcium carbonate. The silts are blown by wind and accumulate in a singular location.
what is hypoglacemia and what are the symptoms of its?
Answer:
Hypoglycemia is a condition where your blood sugar is lower than normal
Its symptoms are fatigue, irregular heartbeat, pale skin, shakiness, sweating, hunger, and anxiety
Explanation:
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Where do new alleles arise from?
Answer:
Gene mutations provide new alleles, making these mutations the ultimate source of variation. A gene mutation is an alteration in the DNA nucleotide sequence, producing an alternate sequence, termed an allele. Mutations occur at random, and can be beneficial, neutral, or harmful.
Explanation:
What is one of the outcomes of the death of a star? *
Answer:After puffing off its outer layers, the star collapses to form a very dense white dwarf. One teaspoon of material from a white dwarf would weigh up to 100 tonnes. Over billions of years, the white dwarf cools and becomes invisible.
Explanation: googel hope it helps
What is a real life situation that would cause the need for a power plant to increase the water?
Answer:
a drought...
Explanation:
Answer:
Not enough energy being produced/ not enough steam.
Explanation:
In human beings, the statistical probability of getting either a male or female child is 50:50. Give a suitable explanation.
Answer:
There is 50 chance because there are two chromosomes that are same and two which are difeerent . XX MEANs girl XY means boys .
➜ The sex of an infant is determined by the type of sex chromosome contributed by the male gamete. Since the ratio of male gametes containing X chromosome and those containing Y chromosome is 50:50, the statistical probability of male or a female infant is also 50:50.
PLEASE ANSWER QUICKLY
Which label belongs in the area marked Y?
Lungs
Jaws
Skeleton made of bones
Skeleton made of cartilage
Answer:
SKELETON MADE OF BONES
Explanation:
Answer:
Jaws
Explanation:
Just took this on EDGE NUITY : Fish.
picture has my notes
What is the main function of the nervous system?
A. regulating sleep
B. preventing accidental poisoning
C. Controlling the body's actions and reactions
Answer:Controlling the body's action's and reactions.
Explanation:When you get nervous, your body reacts to it.
Answer:
C. Controlling the body's actions and reactions
Explanation:
the nervous system is the center of all mental activity including thought, learning, and memory.
Which two structures are part of the cortisol pathway?
Each gland consists of two parts: an inner medulla, which produces epinephrine and norepinephrine (adrenaline and noradrenaline), and an outer cortex, which produces steroid hormones.
The structures that are part of the cortisol pathway are the hypothalamus and liver.
Cortisol is a glucocorticoid in the brain with the function of operation of Gluconeogenesis and stress. The pathway of cortisol in the body is termed as cortisol pathway.
What structures are in the Cortisol pathway?The cortisol pathway is started with the release from the brain, targeting the hypothalamus. The release of epinephrine and nor-epinephrine is controlled with the cortisol release.
The release of the hormones targets the pituitary and adrenal gland and controls the release of stress hormones.
The gluconeogenesis process is controlled by the cortisol hormone. The process takes place in the liver.
Thus, the structures that are part of the cortisol pathway are the hypothalamus and liver.
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Which of the following genotypes would you not expect to find among
the offspring of a DdFf x ddff cross?
Ddff
DDff
DdFf
ddff
Answer:
DDff
Explanation:
HELP ME!! Do you think we should build von Neumann Machines if we have the necessary capabilities? What instructions should we give them if we do?
Answer:
Explanation:
Control Unit retrieves data and instruction in the same manner from one memory. Design and development of the Control Unit is simplified, cheaper and faster. Data from input / output devices and from memory are retrieved in the same manner.
what is a point of view?
Answer:
point of view is a particular attitude or way of considering a matter.
Explanation:
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Answer
c ribose sugars
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Explanation:
Answer:
c)ribose sugars
Explanation:
After TELOPHASE II of meiosis, what is the chromosomal makeup of each daughter cell?
Diploid, and the chromosomes are each composed of two daughter cells
Diploid, and the chromosomes are each composed of a single daughter chromosome
Haploid, and the chromosomes are each composed of a single daughter chromosome
Haploid, and the chromosomes are each composed of two daughter chromosomes
plz remember its telophase 2 not 1
Answer:
Haploid, and the chromosomes are each composed of a single daughter chromosome
Explanation:
Meiosis is a type of cell division that reduces the chromosomal number of the daughter cells by half. Meiosis produces four daughter cells, which have half of the chromosomes of the parent cell. Meiotic process occurs in two division steps i.e. meiosis I and meiosis II, which each involves four stages namely: prophase, metaphase, anaphase and telophase.
- During meiosis I, homologous chromosomes (similar but non-identical chromosomes from parent), are separated into opposite poles while
- During meiosis II, sister chromatids (replicated chromosomes) separate into opposite poles.
Based on the above explanation, after TELOPHASE II of meiosis II, each daughter cell will be HAPLOID (n), and the chromosomes are each composed of a single daughter chromosome.