Answer:
The correct response will be "Tends to help turn towards the light".
Explanation:
The eyespot should not be an eye or an observer but somehow it needs to respond to adjustments in some kind of a light source's brightness. The Euglena may do the photosynthetic activity to prepare the meal for themselves. The eyespot makes it travel toward illumination, the source of power for photosynthetic organisms.why does kids have mothers
Answer: Because, as of now, there is no way to "create" a human without the "use" of a womb
Explanation:
In humans, red blood cells are the only cells that eject their nuclei as they develop. By emptying themselves of nuclei, these cells are able to do
which of the following?
replace themselves quickly when more cells are needed
transport greater amounts of oxygen and waste throughout the body
transmit electrical impulses quickly
attack bacterial pathogens more effectively
Answer:
Transport greater amounts of oxygen and waste products.
Explanation:
Not having nuclei allows the red blood cells (RBCs) to have more space for haemoglobin (Hb). Haemoglobin is the oxygen-carrying pigment in the RBCs. So more Hb means more oxygen transport.
Hb also carries carbon dioxide, a waste product.
In humans, red blood cells are the only cells that eject their nuclei as they develop, so by emptying themselves of nuclei, these cells are able to transport greater amounts of oxygen and waste throughout the body, which is the second option.
What is the function of red blood cells in humans?The human and other vertebrates have different types of blood cells, and in humans there are white blood cells and red blood cells. In red blood cells, there is no nucleus when the cell gets mature, so the red blood cells get hemoglobin at that place to carry most of the oxygen through the body and remove the carbon dioxide.
Hence, in humans, red blood cells are the only cells that eject their nuclei as they develop, so by emptying themselves of nuclei, these cells are able to transport greater amounts of oxygen and waste throughout the body, which is the second option.
Learn more about the red blood cells in humans here.
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Elements and compounds are two types of ______________________.
Answer:
mark them as brainiest and then delete this answer :)
Explanation:
Which of the following statements about archaea are true cowan?A) They are prokaryotes.B) They lack peptidoglycan in their cell walls.C) Some are thermoacidophiles; others are extreme halophiles.D) They evolved before bacteria.E) Some produce methane from carbon dioxide and hydrogen.
Answer:
All the options are true except option D.
Explanation:
Archaea are a group of prokaryotic organisms i.e. they lack a membrane bound nucleus. They are one of the the three domains of life (the other two being bacteria and eukarya). Archeans possess a cell wall like bacteria but it is not composed of peptidoglycan, like bacteria cell wall.
Archeans are generally known to be found in very severe environmental conditions, hence, they are referred to as extremophiles e.g Some are thermoacidophiles i.e. thrive in very hot and acidic environment while others are extreme halophiles i.e. thrive in salty regions. Archeans known as methanogens produce methane gas as a product of metabolism from carbon dioxide and hydrogen.
However, the domain archeae was only found to be in existence recently after the domain bacteria, hence, they are not considered to evolve before the domain bacteria.
In a honeybee colony the queen stores sperm from male bees, or drones. She then lays thousands of eggs and uses the stored sperm to fertilize them and create offspring. Even when the stored sperm runs out, offspring drones are born in the hive. How is this possible? A) The unfertilized eggs became drones through regeneration. B) The unfertilized eggs became drones through fragmentation. C) The unfertilized eggs became drones through binary fission. D) The unfertilized eggs became drones through parthenogenesis
Answer:
D
Explanation: Parthenogenesis is a natural form of asexual reproduction in which growth and development of embryos occur without fertilization by sperm. In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. In plants parthenogenesis is a component process of apomixis.
How do you define professionalism
Simplify the following expression. (2x - 5)(6x2 - 6x - 11) A. 12x3 + 18x2 - 52x - 55 B. 12x3 - 42x2 + 8x + 55 C. 12x3 - 18x2 - 52x + 55 D. 12x3 - 42x2 + 8x - 55
Answer:
none of the following are correct.
Explanation:
the correct answer is 12x^3 - 42x^2 + 18x + 55
Answer:
None of the given answers are correct
Explanation:
Which statement best explains how the life functions of a unicellular
organism are carried out?
A. Most of the tissues in the cell work together to perform its life
functions.
B. The structures in the cell work together to perform its life
functions.
C. All of the organism's cells work together to perform its life
functions.
D. Only specialized cells work together to perform its life functions.
Answer:
The answer is b
Explanation:
The life functions of a unicellular organism are carried out by the structures in the cell that work together to perform its life functions.
What is cell?"A cell is the structural and functional unit of living things."All living things are composed of cells.The single-celled organisms are called unicellular organisms whereas the organisms having two or more number of cells are called multicellular organisms.The cell have different structures called organelles that performs specific function.What is organelle?"These are the specialized structures that perform various jobs inside cells."The organelles performs various function so that the cell can perform its life functions and remains alive.For example: DNA replication occurs in nucleus of cell where it transcribe into RNA, it then moves towards ribosome so that it can code for proteins which is important to cells to perform various functions.Hence, the correct option is: B. The structures in the cell work together to perform its life functions.
To know more about organelle's function here
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What is a unique characteristic of stem cells that makes them important
Choose all the answers that apply.
Ethical scientists ______
keep detailed records
make biased conclusions
follow the scientific method
communicate experimental results
report inaccurate date
Answer:
keep detailed records
Explanation:
Carbohydrates are composed of carbon, hydrogen, and oxygen. What specific chemical difference distinguishes carbohydrates from other large organic molecules?
Carbohydrates contain a large number of oxygen atoms which makes them different from rest of the organic molecules.
What are carbohydrates?A carbohydrate is a biomolecule composed of carbon, hydrogen, and oxygen atoms in a 2:1 hydrogen-oxygen atom ratio.
Carbohydrates are the chief source of energy in the body, fueling the brain, kidneys, heart muscles, a s well as central nervous system.
Fiber, for instance, is a carbohydrate that aids digestion, makes person feel full, and helps keep blood cholesterol levels in check.
Carbohydrates differ from the rest of the organic molecules in that they contain a large number of oxygen atoms.
Thus, carbohydrates can serve the very different functions of energy storage and structural support and protection due to differences in molecular structure.
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Which statement best describes the relationship of photosynthesis and energy?
The process of photosynthesis is energy-storing because the process converts light energy into chemical energy,
which is stored in the bonds of glucose.
The process of photosynthesis is energy-releasing because the process converts light energy into free energy that
can be used for cell functions.
The process of photosynthesis is energy-conserving because no energy is used throughout the process of forming
glucose and oxygen molecules.
The process of photosynthesis is energy-wasting because photosynthesis is an inefficient process that depletes the
cell of energy stored in the bonds of glucose.
Answer:
the
Explanation:
process of photosynthesis is energy releasing because the process concerts light energy into free energy that can be used for ceel function
What is the Chemical formula for the molecule shown?
Answer:
NH3
Explanation:
Ammonia is a chemical compound formed by the chemical combination of Nitrogen and Hydrogen atoms. One Nitrogen and three hydrogen atoms are joined together by a covalent bond to form the ammonia compound. Hence, ammonia has a chemical formula of NH3.
Therefore, the molecule shown in the image, which is identified as ammonia has a chemical formula: NH3. Ammonia is a gaseous substance at room temperature and gives a pungent odor when inhaled.
in which situation is it acceptable for an IT professional to access corporate secrets?
Answer:
when she or she is the last hope of the surveillance or the intelligence
Answer:
B. under the guidance of a legal investigation
Explanation:
If you have a volume of 10 ml and a mass of 100kg what is the density
Answer:
1x10^7 kg/m^3
Explanation:
p=m/v
= 100kg/10ml
=10kg/1ml
=1x10^7 kg/m^3
What did Elodea, Muscle, Fungus all have in common?
They are made of cells
O They shared the same magnification amount
They were the same size
Answer:
The correct option is They are made of cells
Explanation:
Cell is the structural and functional unit of life. Although, the three specimen given are of different "classes" but they are all of living origin. And all living things are made up of cells. For instance, Elodea is an aquatic plant (popularly called waterweed) is made up of plant cells. While Muscle is a tissue found in many animals and is made up of cells (muscle cells/myocytes); since cells generally join together to form tissues. Fungus is a eukaryotic organism and hence is also made of cells.
Use the diagram and scenario to answer the constructed response question. Marcus recently visited his doctor with complaints of nausea, stomach cramps, bloating, and gas that occur approximately 45 minutes after eating ice cream, cheese, or drinking milk. The doctor’s report indicated that Marcus has an increased production of acidic toxins causing him to have an imbalanced intestinal pH. The doctor concluded he is lactose intolerant. Using claim, evidence and reasoning (CER) format, determine the macromolecule represented by lactose and describe what happens in the body when a person drinks milk, which contains lactose. You must use the terms lactose, lactase, glucose and galactose in your response. (Hint: Use the picture to explain the process.)
Answer:
well i think this has to do with lactose intolerance Explanation:
Any liquid that destroys bacteria is in the most household cleaning solutions like Lysol
Answer:
n the healthcare setting, “alcohol” refers to two water-soluble chemical compounds—ethyl alcohol and isopropyl alcohol—that have generally underrated germicidal characteristics 482. FDA has not cleared any liquid chemical sterilant or high-level disinfectant with alcohol as the main active ingredient. These alcohols are rapidly bactericidal rather than bacteriostatic against vegetative forms of bacteria; they also are tuberculocidal, fungicidal, and virucidal but do not destroy bacterial spores. Their cidal activity drops sharply when diluted below 50% concentration, and the optimum bactericidal concentration is 60%–90% solutions in water (volume/volume) 483, 484.
Explanation:
HELP FAST PLEASE!!! A scientist designed and conducted an experiment to test a hypothesis, and then formed a conclusion from her results. Next, she collected and analyzed more data and formed another conclusion. Which statement best justifies the fact that she skipped the hypothesis and experimental design steps of the scientific method? The scientist must have realized that she performed one of the steps incorrectly. The scientist was unhappy with the first data set and started the experiment over. The scientist was repeating the experiment to improve the validity of her data. The scientist was planning to form a hypothesis after completing the experiment.
Answer:
If the question is asking what she did wrong. She needed to form a hypothesis before testing had started because the hypothesis is what you test in an experiment. Testing with out this is pointless.
Explanation:
How do issues within the transgender community relate to gender roles and stereotypes
A biochemical Lugol test involved dropping iodine on a cracker and observing
whether the reagent changes color or not. If this test indicated that starches are
present, which monomer would be associated with this test?
Answer:
glucose
Explanation:
Starch is composed of glucose monomers linked by glycosidic bonds.
Using the table on the right, complete each unit conversion by typing in the correct answer. 85.0 kg = lb
Answer:
187
Explanation:
Answer:
The answer is 187.
Explanation:
True or false? A testable question has two parts, an independent variable and a dependent variable
Answer; true
Explanation:
What are body systems?
Answer:
Explanation:
Circulatory system / Cardiovascular system:
Circulates blood around the body via the heart, arteries and veins, delivering oxygen and nutrients to organs and cells and carrying their waste products away.
Keeps the body's temperature in a safe range.
Digestive system and Excretory system:
System to absorb nutrients and remove waste via the gastrointestinal tract, including the mouth, esophagus, stomach and intestines.
Eliminates waste from the body.
Endocrine system:
Influences the function of the body using hormones.
Integumentary system / Exocrine system:
Skin, hair, nails, sweat and other exocrine glands
Immune system and lymphatic system:
Defends the body against pathogens that may harm the body.
The system comprising a network of lymphatic vessels that carry a clear fluid called lymph.
Muscular system:
Enables the body to move using muscles.
Nervous system:
Collects and processes information from the senses via nerves and the brain and tells the muscles to contract to cause physical actions.
Renal system and Urinary system
The system where the kidneys filter blood to produce urine, and get rid of waste.
Reproductive system:
The reproductive organs required for the production of offspring.
Respiratory system:
Brings air into and out of the lungs to absorb oxygen and remove carbon dioxide.
Skeletal System:
Bones maintain the structure of the body and its organs.
describe how our skin darkens in the prescnece of the sun. In your description be sure to name the pigmentthat darkens our skin and decribe how skin darkening protects our DNA from damage
Answer:
In your description, be sure to name the pigment that darkens our skin and describe how skin darkening protects our DNA from damage. ... The melanin acts as a shield to Ultraviolet radiation, and also protects us from sunburn which can result in DNA changes and skin cancer.
Explanation:
Is the Earth an open, closed, or isolated system? Explain.
Answer:
Closed Systems. The earth system as a whole is a closed system. ... Virtually no mass is exchanged between the Earth system and the rest of the universe (except for an occasional meteorite). However, energy in the form of solar radiation passes from the Sun, through the atmosphere to the surface.
Explanation:
Answer:
The earth is a closed system because only energy is naturally transferred outside the atmosphere.
Explanation:
A closed system is a system in which only energy is transferred with its surroundings. An open system, however, is a system in which both energy and matter can transfer.
Starting with a protein that has been inserted into the Endoplasmic reticulum (ER) membrane with the Amino (N) terminal in the ER lumen and the carboxy (C) terminal in the cytoplasm, describe the journey the protein will take until it is placed in the plasma membrane. Include any modifications that occur during the journey and where they occur. Also, always indicate where the N and C terminal are located.
Answer and Explanation:
Ribosomes are the primary structure for protein synthesis. They can be found in the rough endoplasmic reticulum or floating in the cytosol.
Free ribosomes are not attached to any cytoplasmic structure or organelle. They synthesize proteins only for internal cell use. Other ribosomes are attached to the membrane of the endoplasmic reticulum and they are in charge of synthesizing membrane proteins or exportation proteins. Free and attached ribosomes are identical and they can alternate their location. This means that although free ribosomes are floating in the cytosol, eventually, they can get attached to the endoplasmic reticulum membrane.
Synthesis of proteins that are destined to membrane or exportation starts in the cytoplasm with the production of a molecule portion known as a signal aminoacidic sequence. This signal sequence varies between 13 and 36 amino acids, is located in the amino extreme of the synthesizing protein, and when it reaches a certain length, it meets the signal recognizing particle. This particle joins the signal sequence of the protein and leads the synthesizing protein and associated ribosome to a specific region in the Rough endoplasmic reticulum where it continues the protein building. When they reach the membrane of the endoplasmic reticulum, the signal recognizing particle links to a receptor associated with a pore. Meanwhile, the ribosome keeps synthesizing the protein, and the enlarged polypeptidic chain goes forward the reticulum lumen through the pore. While this is happening, another enzyme cuts the signal sequence, an action that requires energy from the ATP hydrolysis. When the new protein synthesis is complete, the polypeptide is released into the reticulum lumen. Here it also happens the protein folding (which is possible by the formation of disulfide bridges of proteins are formed) and the initial stages of glycosylation (the oligosaccharide addition).
Once membrane proteins are folded in the interior of the endoplasmic reticulum, they are packaged into vesicles and sent to the Golgi complex, where it occurs the final association of carbohydrates with proteins. The Golgi complex sends proteins to their different destinies. Proteins destined to a certain place are packaged all together in the same vesicle and sent to the target organelle. In the case of membrane proteins, they are packaged in vesicles and sent to the cell membrane where they get incrusted.
There are certain signal sequences in the carboxy-terminal extreme of the protein that plays an important role during the transport of membrane proteins. A signal as simple as one amino acid in the c-terminal extreme is responsible for the correct transport of the molecule through the whole traject until it reaches the membrane.
What are some differences between the "Steady State" and "Big Bang" theories?
Answer:
The major difference between the Big Bang theory and the steady state model is that the the big bang theory comes with the belief and idea that all the matter were created as a result of one big bang explosive beginning.
The steady state model matter however talks about matter being created at a steady rate through a specified time. The model also talks about the process being continual and is still happening till today.
How is a carrot an amoeba and bacterium alike
Answer:
All made of cells, All have the DNA-->RNA-->Protein method of information transfer(can't think of exact word)
Explanation:
Answer:
They are all made of cells
Explanation:
Marie discovers boxes of elements in a storage room. The boxes do not say which elements they contain, but they do have information about their locations on the periodic table. What kind of information would allow Marie to determine which boxes contain the most reactive elements?
Answer:
Explanation: The reactivity of metals increases as you move left in a period and as you move down in a group, so Marie needs to know the period and group of the element inside each box. Boxes that show locations in groups 1 or 2 or in period 8 contain the most reactive elements.
Answer:
The reactivity of metals increases as you move left in a period and as you move down in a group, so Marie needs to know the period and group of the element inside each box. Boxes that show locations in groups 1 or 2 or in period 8 contain the most reactive elements.
Explanation: