when a car climbs a hill, it has only potential energy
True or false
Answer:
False.
A car climbing a hill has both potential and kinetic energy,
Explanation:
Potential energy and Kinetic energy are two forms of mechanical energy.
Potential energy is the stored energy that a body posseses due to its state or position. For example, a piece of stone on a lying at a certain point above the ground has potential energy which can be used to do work on the ground when it is released from its height above the ground.
Kinetic energy is energy that a body posseses due to its motion. For a example, a bullet fired from a gun has kinetic energy due to its high velocity and can be used to do work like shattering windows and killing animals.
In some instances, a body will have a total mechanical energy which is equal to a combination of both potential and kinetic energy. For example, a car climbing a hill has kinetic energy due to its motion. It also gains in potential energy as its height above the ground continues to increase as it climbs the hill. The total kinetic energy of the car is the sum of its kinetic as well as potential energy.
Which is an example of refraction
All the following stages must occur for a woman to get pregnant. However, after which stage can a woman be described as pregnant?
Answer: The legislation repeatedly refers to that point as "20 weeks after fertilization." Medically, however, a pregnancy is generally "dated" from "gestation," defined as the time of the woman's last menstrual period, because that is a date most women can pinpoint.
n a simple food chain, wolves eat deer and deer eat shrubs. A pack of wolves has a total biomass of 1,000 kilograms. Approximately what biomass of shrubs must have been eaten by deer to support that wolf pack, assuming that only shrubs, deer, and wolves exist in the food chain
Answer: 100000 kg of biomass of shrubs must be eaten by deer.
Explanation:
According to the Lindeman 10% law :
When energy is transferred from one tropic level to another successive tropic level, only 10% of the energy gets transferred while the remaining is lost in the environment.
We are given:
Biomass of the pack of wolves = 1000 kg
This means that 10% of the biomass of deer is 1000 kg
Biomass of deer will be:
[tex]10=\frac{1000}{x}\times 100\\\\x=\frac{1000\times 100}{10}=10000kg[/tex]
Now, this biomass of deer is 10% of shrubs' biomass.
This means that 10% of the biomass of shrubs is 10000 kg
Biomass of shrubs will be:
[tex]10=\frac{10000}{y}\times 100\\\\y=\frac{10000\times 100}{10}=100000kg[/tex]
Hence, 100000 kg of biomass of shrubs must be eaten by deer.
Some species of algae grow on fungi. The algae makes sugars by the process of photosynthesis, which helps make food for the fungus as well.The fungus provides moisture for the algae. This is an example of:
A. commensalism
B. parasitism
C. mutualism
D. succession
If you grew up with a family pet, then you have surely noticed that they often seem to hear things that you don’t hear. Now that you’ve read this section, you probably have some insight as to why this may be. How would you explain this to a friend who never had the opportunity to take a class like this?
Answer:
force
Explanation:
you should force him so that he can hear or get the lesson you told him
According to the graph, which region's population is expected to approach 500 million in the year 2040?
Answer:
the United States, Canada and Greenlang
what are the role of enzymes in germination of seed
Answer:
Enzymes such as amylase, protease, and lipase are liable for solubilizing spare food material in the form of starch, protein and lipid correspondingly in seed and deliver energy and other fundamentals food material to germinating embryo.
Explanation:
hope this helps you
PLS ANSWER FAST WILL GIVE BRINLY!!!
explain how soil characteristics affect erosion and deposition
Answer:
Waves lead to the weathering of landforms, like sea arches. Snow and ice will be a common form of degradation and deposition. When snow batteries grow up, glaciers can form, which are great masses of ice that can move.
Explanation:
Waves lead to the weathering of landforms, like sea arches. Snow and ice will be a common form of degradation and deposition. When snow batteries grow up, glaciers can form, which are great masses of ice that can move.
A cell is
if it lacks a nucleus and membrane-bound organelles.
A. autotrophic
prokaryotic
eukaryotic
O D. heterotrophic
Answer:
A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.
This EdPuzzle will teach us about Co-Dominance.
In regular Mendelian genetics, which letter below
is dominant?
H
h
Answer:
H
Explanation:
H is the dominant allele while h is recessive.
What happens during meiosis II?
O A. A total of four daughter cells form.
B. DNA double to produce sister chromatids.
C. Tetrads form at the center of a cell.
D. Two diploid cells are produced.
During meiosis II, the process of cell division that follows meiosis I, a total of four daughter cells form that are haploid in form and present in option A as the daughter cells are called as gametes here.
What is meiosis?Meiosis is a type of cell division that results in the production of haploid cells from a diploid cell, and during meiosis, two rounds of cell division occur, referred to as meiosis I and meiosis II, and in meiosis I, the homologous chromosomes pair up and exchange genetic material in a process called crossing over. In meiosis II, each haploid daughter cell produced in meiosis I divides again, and the sister chromatids, which are identical copies of the same chromosome, separate from each other.
Hence, during meiosis II, the process of cell division that follows meiosis I, a total of four daughter cells form that are haploid in form and present in option A.
Learn more about meiosis here.
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As humans grow, their bodies change.” Which statement best explains how humans grow?
Answer: Cells undergo cell division
Explanation:
"As humans grow, their bodies change.” The statement that best explains how humans grow is that cells undergo cell division.
When cells divide, thus brings about the making of new cells. This is referred to as cell division or cell reproduction. In this case, a single cell divides and then brings about two cells, then these two cells later make four cells .... This is unique and vital for every living organisms.
Mitosis:
a. takes place only in brain tissue
b. creates cells that are different from each other
c. makes sex cells for sexual reproduction
d. creates identical cells for growth, repair, and asexual reproduction
Answer:
d. creates identical cells for growth, repair, and asexual reproduction
Explanation:
Mitosis is used by somatic, or body, cells; this is how they reproduce. Since the new cells are intended for the same job, they are made identical to the parent. Additionally, mitosis only includes one parent cell so it is asexual. Sexual reproduction occurs through meiosis. Mitosis begins with one parent cell and ends with two identical daughter cells.
the diagram shows the measurements of two fish. the difference in length between fish a and b is?
Answer:
2 cm
Explanation:
The difference in length between fish a and b is 2 cm. Thus, option A is correct.
What is measurement?
Distance is a physical quantity which is measured in meter. If a man travel then it is measured in meters that defines that how much he travel from one point to another point for all these type of things we use to measure distance.
Centimeter is also a physical quantity which is use to measure distance. 1 centimeter is equal to 0.01 meter and 1 centimeter is equal to 0.00001 kilometer.the kilometer is large quantity to measure distance while centimeter is smaller quantity to measure distance.
Kilometer is also a physical quantity which use to measure the distance 1 kilometer is equal to 1000 mtr and 1 kilometer is equal to 100000 centimeter.
For above conclusion, we easily states that the kilometer is large quantity to measure distance while centimeter is smaller quantity to measure distance. Centimeter is also a physical quantity which is use to measure distance. 1 centimeter is equal to 0.01 meter and 1 centimeter is equal to 0.00001 kilometer.
Therefore, The difference in length between fish a and b is 2 cm. Thus, option A is correct.
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Which of the following statements is false regarding epithelial tissue?
A. exhibits cellularity; a close-packing arrangement
B. has specialized contacts: tight junctions, desmosomes, gap junctions
C. exhibits polarity; has an apical and basal surface
D. epithelial tissue is innervated and avascular
E. has a low regenerative rate
Explanation:
C. exhibits polarity; has an apical and basal surface
#Carryonlearning
How do the moth larvae survive predators?
Answer:
Having a body that looks like a stick helps the larvae hide from predators. The larvae can even adjust their color from brown to green to best match the branches they are feeding on.
Hãy nêu tóm tắt vai trò của các RNA không mã hóa (non-coding
RNA) trong quá trình điều hòa phiên mã, cho ví dụ minh họa.
Answer:
Protein synthesis, RNA sequestration, RNA transport and to control transcriptional gene.
Explanation:
The role of non-coding RNAs in transcriptional regulation as well as proteins synthesis etc. Non-coding RNAs is responsible for controlling different processes like protein synthesis, RNA sequestration, RNA transport and to control transcriptional gene through epigenetic regulation and chromatin remodeling. By interacting with DNA, RNA and proteins, non-coding RNAs can regulate chromatin structure and function and the transcription of neighboring.
In an ecosystem, organisms compete against their own species, not against other species, for the same resources
True or false
when is the not used before a superlative degree ? some one help me now i have no time
Answer:
The is not used with superlatives in predicative position.
Explanation:
The is not used with superlatives in predicative position, when we compare the same person or thing in different situations. He is nicest in the evenings after he has had a few drinks. (NOT He is the nicest in the evenings …)
If oxygen is more concentrated outside a cell than inside
Answer:
What happens if the concentration of oxygen molecules outside the cell is lower than that inside the cell? Diffusion.....the oxygen molecules will move inside the cell until the concentration is equal inside and outside. Why do many cellular processes depend on osmosis?
Explanation:
Three common types of passive transport include simple diffusion, osmosis, and facilitated diffusion.
If oxygen is more concentrated outside a cell than inside diffusion will occur.
Oxygen is an element that is for cellular respiration which are metabolic processes that are essential for life.
A cell is the smallest and basic structure of organisms that is surrounded by a membrane.
Diffusion is the process by which molecules of a substance move from a region of where they are highly concentrated to a region where they are less concentrated.
Therefore when oxygen molecules is more concentrated outside a cell than inside, a concentration gradient exits between the inside and outside of the cell leading to diffusion of oxygen into the cell.
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You are on a task force to implement Warn-on-Forecast in a town prone to tornadoes. What would you do to lower the risks of using this technology?
Answer:
We can educate the residents on the changes that are occuring to the current forecasting plan. Then we can explain the steps that we can take during an emergency. To make sure residents understand more about the occurances, we should explain it more clearly and thoroughly. Then the residents would be prepared during a crisis.
Explanation:
Hope this helps
^_^
Answer:
The first step would be to educate the residents on the changes to the current forecasting plan. Then explain the steps they should take during an emergency. To make the residents understand more clearly, the task force should work with local media to provide clear directions to residents. Then the residents would know what to do in an emergency.
Explanation:
plato
leukocytes help to protect the body against disease because it because they produce?
Explanation:
leukocyte cells as neutrophils has the property of phagocytosis. and lymphocytes cells such as B & T lymphocytes in which b-lymphocytes produces antibodies against particular antigen and T Lymphocytes destroy infected cells.
Mosquitoes are classic examples of
A.commensalism
B.endoparasite
C.ectoparasite
D.mutualism
Answer:
B.
Explanation:
Endoparasites are parasites that live within the body of its host. Ectoparasites live outside the body of the host. A female mosquito would be an ectoparasite because it lives off of blood by sucking it up from the outside. Endoparasites – Yes, these are inside the host.
Which phenomena help form Earth’s magnetic field?
Answer:
The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.Answer:
b & f
Explanation:
Which scenario is an example of the transfer of thermal energy by
conduction?
O A. A person's hand gets warmer when they are holding a smart
phone.
O B. Air in that is on the opposite side of the heater in a room warms
up over time.
C. Water near the shore of a lake becomes warmer on a sunny day.
O D. Water at the top of pan becomes warmer as water from the
bottom of the pan rises.
SUBMIT
Answer:
A
Explanation:
Conduction is the exchange of energy as warmth or power starting with one iota then onto the next inside an article by direct contact. Conduction happens in solids, fluids, and gases. Nonetheless, solids move energy most proficiently since the atoms in solids are most firmly stuffed, and the particles are nearer together, as displayed in this figure. For fluids and gases, the thickness of the particles are by and large lower than those of solids and the particles are farther separated, so the energy move is less productive.
octopuses and squids are part of the phylum mollusca. they both have a large brain and highly developed eyes. What other characteristic is common to these two animals?
Explanation:
They both have 8 tentaclesThey also both have beaks which is their mouthAnswer:
They both have 8 tentacles and they also both have beaks which is their mouth
Explanation:
(meow) <3
Which evidence in the diagram above indicates that a gas was
produced as a result of the reaction?
Answer:
the balloon
Explanation:
elevated the prediction using the specific experimental procedure they collected the experimental by catching mice on the beach and releasing them in lines and by catching mice from Inland releasing them on beach it wash to see if they were eaten by predators predators true or false
Answer:
True
Explanation:
The mice captured from beach would find it difficult to move in lines as it has habit to move freely in any direction. The mice will move slowly. The second mice captured from inland and released on beach would first wait before moving and it will analyze the environment. There are high chances that it nay be eaten by predator such as crab.
compare the growth of mutated cells with and without growth factors
Answer:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it
Explanation:
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