When objects of two different temperature are in contact, what happens?
Answer:
The answer is C.
Explanation:
This is because the objects will exchange thermal energy, until thermal equilibrium is reached, i.e. until their temperatures are equal. We say that heat flows from the hotter to the cooler object.
Energy is transferred from a warmer to a cooler object through the phenomenon of heat. For instance, a large pan of lukewarm water will gain heat from a lit match (a higher temperature object) (lower temperature object). Thus, option C is correct.
What change in temperature when object are in contact?It feels warmer in your hands to hold a hot cup. The heat is moving from one object to another, which is what you are feeling. Your hands receive the hot chocolate's thermal energy.
Heat is exchanged when two objects are at different temperatures. Up until the two items are at the same temperature, the cooler object warms up. Always, heat energy moves from a hot object to a cooler one.
The colder end will get energy from the hot end as it passes through the rod. The temperature will eventually equalize across the entire rod. Wearing gloves is crucial when working with hot metal, for this reason.
Therefore, The warmer object transfer heat energy to the cooler object.
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choose one plant or animal and what are the 3 adaptions this organisms has
Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems,leaves,and roots.Reproduction occurs when adults produce sperm and eggs that fuse to form offspring.Each adult Caulerpa consists of just a single cell,however.Which of the following statements is true?
A) Caulerpa violate the pattern component of the cell theory that all organisms consist of cells.
B) Caulerpa violate the process component of the cell theory that all cells come from preexisting cells.
C) Caulerpa violate both the pattern and process components of the cell theory.
D) The existence of Caulerpa is consistent with the cell theory.
Answer:
D) The existence of Caulerpa is consistent with the cell theory.
Explanation:
This question describes species of algae in the genus, Caulerpa, which is a unicellular organism that possesses structures similar to leaves, stems and roots in plants. It also grows to a length of about 0.5metres. it reproduces sexually by fertilization of gametes (sperm and egg).
According to all these described characteristics of Caulerpa, it's existence is in conformity or accordance with the unified cell theory, which was proposed by three scientists namely: Matthias Scleiden, Theodor Schwann, and Rudolf Virchow in the 1830's. The three components of the cell theory states that:
1. Cell is the fundamental and basic unit of life existence.
2. All living organisms are composed of one (unicellular) or more cells (multicellular).
3. All cells come from already preexisting cells.
Hence, based on the components of the cell theory and the life pattern of Caulerpa i.e. Caulerpa is made up of one cell, it is made from the fusion of preexisting parental cells etc. It is consistent with the cell theory.
The immune response of a host against an invading bacterium is often triggered by surface components on the bacterium that are recognized as "non-self" or "foreign" by the host. These non-self components, often protein or polysaccharide in nature, are referred to as antigens. The host responds to these antigens by making antibodies that will react with invading bacteria and mark them or tag them for destruction by phagocytes.
Indicate the bacterial structures that are likely to be antigens, to which host antibodies bind, marking the invader for phagocytosis
a. fimbriae
b. ribosomes
c. cell wall
d. plasmids
e. flagella
f. capsule
g. nucleoid
Answer:
The correct answer is :
a. fimbriae
e. flagella
c. cell wall
f. capsule
Explanation:
There are several bacterial structures that are binds to the host cells and likely to be antigens to which specific antibodies attached to mark or destruct them by phagocytes.
These bacterial structures are common in the fact that all these structures have binding ability to the host cells and invading them some of these structures are : fimbriae, cell wall, flagella, and capsule that are attached to antibodies and cell of the host.
Thus, the correct answer is :
a. fimbriae
e. flagella
c. cell wall
f. capsule
Mr. B has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. But when he arrives, he is in severe respiratory distress. He says "I felt better before I came into the ER! Is this tube doing anything
The question is incomplete,below is the complete question.
Mr. B has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. But when he arrives, he is in severe respiratory distress. He says "I felt better before I came into the ER! Is this tube doing anything?"
You tell the Clinical Nurse Specialist (CNS). As the two of you move him into the bed, you notice that his chest tube bottle is lying on its side on the gurney, with air going into it. When you point this out to the CNS, she immediately grabs the bottle and sets it upright on the floor. You see air start bubbling through the fluid right away. "That was the problem!" she says. "They lost the water seal, and air was going into his chest from the bottle. You would not believe how many times that happens on transport." When you examine Mr. B, you have trouble detecting his lung sounds on the left. Even stranger, his apical heart sound is in the wrong place - it is over toward the right side of his chest. His respiration rate and heart rate are both increased, and he is struggling to breathe. "Let's give him a little oxygen. He'll be a lot better in a half-hour," says the CNS. "Check back on him."
QUESTION - Why would accumulation of air in his pleural space cause his heart sounds to be in the wrong place?
Accumulation of air in Mr B pleural space will cause his heart sound to be heard in the wrong place because the left side is his chest is being filled up with air making the organs in his chest to to be pushed over to the right side.
18. Pepsin is an enzyme produced by stomach cells
to help digest protein. Stomach cells package
and secrete pepsin in which of the organelles
Answer:
Golgi bodies /apparatus
Explanation:
this organelles are responsible in for packaging and transportation of glyco proteins therefore are the organelles mainly involved in secretion of synthesised proteins
Pepsin is an enzyme produced by stomach cells to help digest protein. Stomach cells package and secrete pepsin Golgi bodies.
What are Golgi bodies?The majority of eukaryotic cells contain the Golgi apparatus, sometimes referred to as the Golgi complex, Golgi body, or just the Golgi.
It packs proteins into membrane-bound vesicles inside the cell before the vesicles are delivered to their destination. It is a component of the endomembrane system in the cytoplasm.
It is situated close to the cell nucleus and the endoplasmic reticulum in the cytoplasm.
Pepsin is an enzyme that the stomach cells manufacture to aid in the breakdown of protein. Pepsin Golgi bodies are packaged and secreted by stomach cells.
Thus, the organelle is Golgi bodies.
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what new stuff can you think of that scientists have made?
Answer:
Hey there!
Recently, scientists have discovered many things. Some include: A new ink to detect fake passports, world's largest supercomputer, hyperloop technology, and even a potential vaccine for diarrhea.
Let me know if this helps :)
Select the correct image,
Identify the molecule that is not a compound,
H
H
H
H-Si-H
N
H
H
о
2020 Edimentum. All rights reserved.
Answer:ITS H
Explanation: BECAUSE I SAID SO
Which amino acid chain will be formed by the condons shown below?
Answer:
D. Gly Lys Cys
Explanation:
Match each hormone to its function
•luteinizing hormone
•testosterone
•oxytocin
•follicle-stimulating hormone
•estrogen
•gonadotropin-releasing hormone
Answer: Stimulates the contraction of the uterus during childbirth - OXYTOCIN
Stimulates sperm production and growth of ovarian follicles - FOLLICLE STIMULATING HORMONE
Initiates the Secretion of leutinizing hormone and follicle stimulating hormone - GONADOTROPIN RELEASING HORMONE
Initiates the development of secondary sex characteristics in females - ESTROGEN
Initiates the development of secondary sex characteristics in males - TESTOSTERONE
Initiates cell production of testosterone and estradiol by cells in the gonads - LUTEINIZING HORMONE.
The correct match for hormone and their functions are- 1- Oxytocin, 2- follicle-stimulating hormone, 3- a gonadotropin-releasing hormone, 4- estrogen, 5- testosterone, and 6- luteinizing hormone.
Oxytocin is a naturally occurring hormone that plays a vital role in the reproductive system of both men and women, including labor, delivery, and breastfeeding, as well as in human behavior.
FSH is produced by the pituitary, which is a small gland just below the brain. The pituitary plays a vital role in the development and regulation of sexual function.
Gonadotropin-releasing hormone stimulates the brain’s pituitary gland to produce and release the hormones LH and FSH.
Estrogen is a family of hormones that play a vital role in the reproductive and sexual development of women.
Testosterone is a male sex hormone. It is responsible for spermatogenesis and fertility in males.
Luteinizing hormones (LH) are hormones in the body that stimulate the reproductive system. Luteinizing hormone stimulates ovulation and stimulates the production of the hormones needed for pregnancy
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write one ecological importance of mucor.
mucor is a microorganism!
Answer:
I actually I understand but I can try I would give three importance I no
Explanation:
1)It can be used in producing ethanol
2) It has a large array of sugar and can be used as a food source
3) It is also used as fish feed and maybe a valuable tool to clean oil spills
Hoped it helped
In humans, the quadriceps muscle is a skeletal leg muscle under voluntary control. As such, it contracts in response to signals from the motor cortex in the cerebrum. If such a muscle contracts involuntarily, that indicates:
Answer:
The correct answer is - operation of reflex arc.
Explanation:
The reflex arc is a unique and special type of neural pathway that starts with a sensory neuron and ends with a motor neuron. In this operation sensory neuron acts as the receptor and motor neuron is effector. This type of neural circuit helps in faster response.
Voluntary muscles like quadriceps muscle are normally in control voluntarily however, such muscle may contract involuntary due to reflex arc. This type of contraction takes place before the signal has even reached the brain.
In this response the sensory neuron takes the signal to the spinal cord and then motor neuron to the effector muscle for faster response.
Thus, the correct answer is - operation of reflex arc.
Do you agree or disagree, why or why not, give examples. The knowledge produced by science builds on old ideas and is constantly changing.
Answer:
agree
Explanation:
people are never going to stop learning
things will evolve
what has been discovered in the past is still relevant
The knowledge produced by science builds on old ideas and is constantly changing agree.
What is Science?Science is a methodical process that creates and arranges knowledge in the form of universe-related explanations and predictions that can be put to the test.
Some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old, and science may be as old as the human species.
In the period between 3000 and 1200 BCE, Mesopotamia and Ancient Egypt produced the oldest written documents in the history of science. Greek natural philosophy of classical antiquity, where formal attempts.
Therefore, The knowledge produced by science builds on old ideas and is constantly changing agree.
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Scientists are able to reproduce certain plants and animals by cloning them in laboratories. The diagram shows the steps of cloning using tissue cultures. Do you think cloning is a form of asexual reproduction? Explain your answer using evidence from the diagram
Answer:
Yes.
Explanation:
Yes, cloning is a form of asexual reproduction because there is no fusion of sperm and eggs takes place. the animal which is formed from this process is identical of that organism because it is produced from the tissue of that single animal. in 1996, first mammal is produced from cloning was sheep named dolly at the Roslin Institute in Scotland. In cloning, the egg is taken from female organism and remove the nucleus from the egg then the desired organism cell is taken and fuse with the nucleus with the help of electricity. Then implant this embryo in the body of first organism from where egg is taken and after that the embryo turns into a baby, this process is called cloning.
Answer:
Yes, cloning is a form of asexual reproduction. The diagram shows that new plants form from a single parent plant, which means that the offspring are genetically identical to the parent.
Explanation:
Edmentum
How does the design of your experiment control for outside factors that may affect the results?
Answer:
It separate the inner environment from the outer environment.
Explanation:
The design provides the separation of the inner environment from the outer environment which is responsible to control the outside factors which directly affects the results of the experiment. The design provides control environment which is required for the experiment. In this control environment, the environmental factors will not affect the results of the experiment.
The hard outer covering of an animal is a(n) blank
Answer:
exoskeleton
Explanation: answering spree
Answer:
The hard outer covering of an animal is a(n) exoskeleton.
Explanation:
The definition of exoskeleton is "a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection."
Differentiate between sub-cellular and acellular particles with examples
Answer:
Explanation:
Sub-cellular particles are particles smaller than the living cell and are found suspended in the cytosol (of a cell) like the nucleus, golgi complex and the mitochondria.
While acellular particles/organisms are particles that do not have a cell like the virsues, viroids and prions. They are not alive/inactive outside a living environment but become active immediately they are inside a living environment (like a cell).
Sub-cellular particles are structures that are found within a cell. These structures perform specific functions and are essential for the cell to carry out its biological processes.
Examples of sub-cellular particles include organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and lysosomes. These structures are composed of both proteins and lipids and are enclosed by a membrane.
Acellular particles, on the other hand, are particles that do not possess a cellular structure and are not alive. These particles are much smaller than cells and are unable to carry out any metabolic processes.
Examples of acellular particles include viruses, prions, and viroids. These particles are composed of either DNA or RNA and can replicate themselves only within a host cell. They do not have their own metabolism and rely on the host cell for replication and survival.
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Always use the gross adjustment knob before using the fine adjustment knob when focusing on the microscope 1 2 False True
how do each of the following factors affect the productivity in this process of photosynthesis ? 1)Temperature 2) Water 3) carbondioxide
Answer:
without the right amount of temperature and water photosynthesis won't take place and without the presence of carbon dioxide...there is nothing like photosynthesis
Explanation:
1) Temperature- Above 28°C of temperature photosynthesis will not take place faster as necessary. At this temperature, the enzymes responsible for photosynthesis will not work efficient as needed . 2)Water and 3)Carbon Dioxide-Water and carbon dioxide are the reactants in Photosynthesis which means they are taken in to produce energy. Six molecules of water and six molecules of carbon dioxide are needed to break apart glucose and produce energy.
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Which of the following is composed of a population of a species plus populations of other species? A. Community B. Biotic Potential C. Abiotic community D. Ecosystem
A Community is composed of a population of a species plus populations of other species. Thus, the correct option is A.
What is Population?A Population may be defined as a group of individuals belonging to the same species living in the same area at a given time. Some demographic characteristics of a population are size, density, birth rate, death rate, population dispersal, etc.
A community may be defined as a group of individuals belonging to different species living in the same area at a given time.
An ecosystem may be defined as a place or area where individuals of different species along with abiotic factors live together and interact with one another for the purpose of food, shelter, and space.
The Abiotic community deals with the existence of abiotic factors like temperature, rainfall, fire, winds, mountains, hills, etc.
Therefore, a Community is composed of a population of a species plus populations of other species. Thus, the correct option is A.
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Only ------ percent of the food eaten is turned into its own body.
Answer:
10%
Explanation:
there is a the rule that only 10% of the energy is transferred from one trophic level to the other.
this means that only 10% of the food an organism eats is passed onto the next organism. eg only 10% of the energy in a plant is transferred to a rabbit that eats the plant. After that if a wolf eats the rabbit only 10% of the energy of food will pass on to the wolf.
At label ________, the cell is not hyperpolarized; however, repolarization is in progress, as the sodium channels are inactivated or becoming inactivated, and many potassium channels have opened.
Answer: C
Explanation:
When a neuron receives a stimulus, the sodium channels present in the membrane are opened, and therefore Na+ enters the cell in favour of the concentration gradient, so that the membrane potential changes to positive by means of ion exchange, producing depolarization. If this depolarization reaches a certain threshold value, an action potential is generated. The next step is the opening of the potassium channels and the inactivation of the sodium channels, so that the repolarization of the membrane takes place. The sodium channels, will return to the closed state in the hyperpolarization to continue in this state during all the rest potential achieving the action potential to return to -70 mV (repolarization).; until the arrival of a new action potential which produces the activation and opening of the sodium channels, repeating the cycle again and generating a new depolarizing action. This process is part of the synaptic transmission.
So, hyperpolarization is any change in the cell's membrane potential, which makes it more polarized. This means, hyperpolarization is an increase in the absolute value of the cell's membrane potential. Thus, changes in membrane voltage where the membrane potential is more distinctly positive or negative are hyperpolarizations.
During the repolarization period after an action potential, the membrane potential is more negative than when the cell is in "rest period". In the picture, this repolarization period is about 1-2 milliseconds. So, repolarization is the time in which the membrane potential is hyperpolarized with respect to the resting potential.
In the attached figure, part C indicates this repolarization period.
What is the function of the nucleus? A. Builds proteins B. Stores the cell's glucose C. Stores the cell's DNA D. Produces energy for the cell by respiration
[tex] \large{ \boxed{ \bf{ \pink{Stores \: the \: cell \: DNA(C)}}}}[/tex]
Nucleus is the control centre of the cell and manages all the cellular activities taking place inside the cell. It consists of four parts :-
Nuclear membrane, Nucleoplasm, Chromatin material and Nucleolus.The Chromatin material(Condensed - Chromosome) stores the cell's DNA which is transmitted to next generation.
Define:
(i) parasitism,
(iii) photosynthetic nutrition
Answer:
hey there !!!!
According to google your answer's are as follows
I} Parasitism means the relationship between two species of plants or animals in which one benefits at the expense of the other, sometimes without killing the host organism.
II} Photosynthesis is a biological process utilized by all green plants to synthesize their own nutrients. The process of photosynthesis requires solar energy, water and carbon dioxide.
HOPE U GOT ITPLZ MARK ME AS BRAINIEST IF IT HELPS !!!!!!!Match each statement to the type of behavior it describes. Jenna published the results of her latest experiment for the public to see. Malcolm altered an experiment to be able reach his desired conclusion. Elena keeps complete records of all her experiment results. Neal shared the results of his field study even though they didn’t support his hypothesis.
Answer:
See the answer below
Explanation:
It may seem that the question is incomplete. The complete question reads:
Match each statement to the type of behavior it describes. Jenna published the results of her latest experiment for the public to see. Malcolm altered an experiment to be able reach his desired conclusion. Elena keeps complete records of all her experiment results. Neal shared the results of his field study even though they didn’t support his hypothesis. Put each description to the group it belongs to. 1.Responsible 2.Irresponsible.
To answer the question:
Responsible behavior
Jenna published the results of her latest experiment for the public to see.Elena keeps complete records of all her experiment results.Neal shared the results of his field study even though they didn't support his hypothesis.Irresponsible behavior
Malcolm altered an experiment to be able to reach his desired conclusionResponsible behaviors are those that support responsible scientific practices and do not jeopardize the objective nature of research. Every data during experiments must be well kept and after thorough analysis, results must be published fro the public to see irrespective of whether it agrees or disagrees with the original hypothesis.
Altering an experiment in order to achieve the desired result is grossly irresponsible, as this eliminates the objectivity that should be the main goal of every experiment. Bias must be eliminated from every scientific experiment.
If a cell has 24 pairs of chromosomes in its diploid state, how many
chromosomes will it have after Meiosis 2?
A. 12
B. 24
C.48
D. 6
Answer:
option A is correct that is 12
Explanation:
meiosis occur in two phases in first phase DNA replication occur and amount of DNA become doubled without any change in the chromosome number and two daughter cell (each 2 n)are formed.
now in stage 2 each daughter cell undergoes mitosis with the formation of two cells with half chromosomes(n)
now 2n=24
n=24/2 =12
after meiosis stage 1...........two daughter cell each with 24 chromosomes
stage 2 .............each daughter cell form two grand daughter cell each with 12 chromosomes
net result.......4 daughter cell each with 12 chromosome(assuming cell as a diploid cell)
If a cell has 24 chromosomes before cell division then the daughter cell resulting from the mitotic division will have 24 chromosomes while the daughter cell resulting from the meiotic division will contain 12 chromosomes each.
The answer is option A.
What are meiotic and mitotic cell divisions?There are sorts of cell departments: mitosis and meiosis. most of the time whilst humans discuss “cellular division,” they suggest mitosis, the procedure of making new frame cells. Meiosis is the sort of cell division that creates egg and sperm cells. Mitosis is an essential technique for lifestyles.
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ANSWER ASAP PLEASEEEEEE!!!!!! ILL GIVE 100 POINTS!!
Answer:
d
Explanation:
Answer: D, I believe.
Explanation:
You find a new organism and are trying to determine what how it eats. You found it in a mud flat at the ocean and it has no teeth, but a very long alimentary canal. You see living examples moving through the mud very slowly. Based on all of this, you conclude that this animals is
Answer:
A Detritivore
Explanation:
A Detritivore is a heterotrophic organism that feeds on dead plant and animal materials. They could also feed through coprophagy which is nutrition obtained by feeding on feces. Worms that dwell on the soil, insects, and mollusks are examples of detritivores. Detritivores can also be found residing in aquatic environments. Crabs and Lobsters are examples of these organisms.
Detritivores have no teeth. So, they tend to suck in their food, and this food, through peristaltic actions, moves directly into the digestive tract where it is acted upon by digestive enzymes. From the observations, I made about the organism at the mudflat at the ocean, I can conclude that it is a detritivore.
what the parts of Earth's biosphere
Answer:
lithosphere, atmosphere and hydrosphere.
Explanation:
Answer:
the hydrosphere
the atmosphere
the lithosphere
Explanation:
The hydrosphere is all waters on the Earth's surface, such as lakes and seas, and sometimes including water over the Earth's surface, such as clouds.
The atmosphere is the Earth's layer of gases, commonly known as air, that is retained by Earth's gravity.
The lithosphere is the rigid part of the earth, consisting of the crust and upper mantle.
Which of the following is an organic molecule?
Answer:
glucose, water is found organisms but mixed with other substances
