Compare and contrast Eubacteria and Archaebacteria.
Answer:
Archaea is a single-celled bacterium that thrives in severe circumstances, whereas Eubacteria lives and flourishes in normal settings. Archaea is the earliest bacterial species yet discovered, dating back to the formation of the world.
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1. Which choice shows functions of proteins in living organisms?
A.) Store the genetic code and give support
B.) Structure and support
C.) Immediate and stored energy
D.) Store energy and the genetic code
2. Which choice best describes a long chain of amino acids?
A.) Polypeptide
B.) Peptide
C.) Nucleic acid
D.) Disaccharide
3. What could cause a change in the shape of a red blood cell that would affect its function?
A.) A change in the quaternary structure of the protein hemoglobin
B.) A change in the primary structure of the protein hemoglobin
C.) A change in the secondary structure of the protein hemoglobin
D.) A change in the tertiary structure of the protein hemoglobin
Answer:
1.C. 2.A. 3.B
Explanation:
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Proteins help Store energy and the genetic code. The long chain of amino acids describes the long chain of polypeptides.
What is protein?
Proteins are among the most prevalent organic molecules in biological systems and have a much wider range of structural and functional variations. Many thousands of proteins, each serving a different purpose, can be found in a single cell.
All proteins are composed of one or more chains of amino acids, despite the fact that their structures and activities differ substantially from one another.
In biological reactions, enzymes function as catalysts, accelerating the reactions. Each enzyme may distinguish between one or more substrates, or the molecules that act as the catalysts for the reactions they catalyze.
Therefore, Proteins help Store energy and the genetic code. The long chain of amino acids describes the long chain of polypeptides.
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The volume (V) of a cylinder can be determined by using the formula
V = ar?h,
where r = the radius of the base, and h = the height of the cylinder. What is the result
of solving this equation for r?
Answer:
Explanation:
To solve for r, simply means to isolate the variable:
[tex]V = pi*r^2*h\\[/tex]
The inverse of multiplication is division, so divide both sides by pi and h
[tex]\frac{V}{pi*h} = r^2[/tex]
[tex]r = \sqrt\frac{V}{pi*h}[/tex]
During the winter, a homeowner places a heavy cloth curtain across the stairwell leading upstairs from the main rooms. Which is the best explanation of the reason she does this?
A.
She wishes to place a radiating surface across the stairwell to help keep the area warm.
B.
She wishes to prevent the stairwell walls from drawing thermal energy away from downstairs by conduction.
C.
She wishes to keep hot air from downstairs from flowing up the stairwell by convection.
D.
She wishes to keep hot air from upstairs from flowing down the stairwell by convection.
Answer:
D.
She wishes to keep hot air from upstairs from flowing down the stairwell by convection
TWO predator adaptations used to help them capture their prey are *
camouflage
outrunning prey
mimicry
fleeing
Answer:
Under the pressure of natural selection, predators have evolved a variety of physical adaptations for detecting, catching, killing, and digesting prey. These include speed, agility, stealth, sharp senses, claws, teeth, filters, and suitable digestive systems.
Explanation:
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List the following events in the order they occur: _____ a. The motor end plate is depolarized. _____ by. The sarcomeres contract. _____ c. Acetyl choline is released from the axon terminal into the synaptic cleft. _____ d. The depolarization triggers an action potential which propagates along the sarcolemma and the T tubules. _____ e. An action potential arrives at the axon terminal
The answer is what follows:
-An action potential arrives at the axon terminal.
-Acetyl choline is released from the axon terminal into the synaptic cleft.
-The motor end plate is depolarized.
-The depolarized triggers an action potential with propagates along the sarcolemma and the T tubules.
-The sarcomeres contract.
Which of the following organelles houses DNA in eukaryotic cells?
Question 12 options:
Nucleus
Mitochondria
Golgi apparatus
Endoplasmic reticulum
Answer:
The nucleus
Explanation:
The nucleus is the most conspicuous organelle found in a eukaryotic cell. It houses the cell's chromosomes and is the place where almost all DNA replication and RNA synthesis occurs. The nucleus is spheroid in shape and separated from the cytoplasm by a membrane called the nuclear envelope.
what’s the correct choice?
help pls
bio
Answer:
ig (to the genotype of an individual with a recessive phenotype) but in general its done to find the genotype of individual and check whether they are dominant or recessive
Answer:
i think first option please follow me we should help each other
Index fossils give us clues to_______________?
Question 5 options:
the history of the wooly mammoth
the diet of early man
species and paleoenvironments long ago
multicellular organisms
Answer:species and pale environments long ago
Explanation:
Summarize active transport In your answer consider the direction of transport and any external
energy or special structures that are needed in the process .
Answer:
an area of lower concentration to an area of higher concentration.
ATP
Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.
the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plant
membrane pumps (such as the sodium-potassium pump) and vesicle transport.
Primary Active Transport.
The Cycle of the Sodium-Potassium Pump.
Generation of a Membrane Potential from the Sodium-Potassium Pump.
Secondary Active Transport.
Sodium Potassium Pump.
Endocytosis.
Exocytosis.
Active Transport.
Explanation:
Moving substances across a cell membrane against their concentration gradient, from an area of lower concentration to a region of greater concentration, is a process known as active transport in cells.
Thus, Active transport uses external energy—typically in the form of ATP (adenosine triphosphate)—to move materials against the concentration gradient as opposed to passive transport, which depends on the natural movement of particles.
Active transport involves the movement of materials across the cell membrane by means of specific membrane proteins called carrier proteins or pumps.
Thus, Moving substances across a cell membrane against their concentration gradient, from an area of lower concentration to a region of greater concentration, is a process known as active transport in cells.
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when does crossing over occur? how many chromatids are involved? how many homologous chromosomes?
Answer:
The normal human karyotype is made up of 46 chromosomes: ... The 2 sister chromatids are linked mainly by a paracentric heterochromatin ...
Explanation:
Hi, I learned that an Knight anole is a invasive species in Florida. There is one on my humming bird feeder. Is it alright to leave it alone and let it drink the honey or are they too much of a threat to Florida?
Answer:
they pose a serious threat to the diversity of native lizards and birds.
Explanation:
the exchange of gases within the cells of the body is known as
Explanation:
The exchange of gases between the blood and tissue cells is internal respiration. Finally, the cells utilize the oxygen for their specific activities: this is called cellular metabolism, or cellular respiration. Together, these activities constitute respiration.
how does your body acquire the oxygen the cells in your body need to function?
Answer:
You take in oxygen and it goes to your lungs. It spreads through your body, going through your bloodstream, and going to your heart. The excess oxygen turns into carbon dioxide leaves through your mouth. When it leaves, the plants take the carbon dioxide and turn it back into oxygen, and repeating this process.
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Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
What are the functions of hemoglobin?Hemoglobin is a protein in your red blood cells that carries oxygen to your body's organs and tissues and transports carbon dioxide from your organs and tissues back to your lungs.
Hemoglobin, abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein present in red blood cells of almost all vertebrates as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the respiratory organs to the rest of the body.
Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues. Myoglobin, in muscle cells, accepts, stores, transports and releases oxygen.
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Known as the 'Pine Tree State; Maine's state tree is the Eastern white pine. Consider the model. Cärbon dioxide, water, and sunlight
are reactants of photosynthesis and are used to produce glucose and release water as a byproduct. What advantage does the pine tree
have in performing photosynthesis compared to deciduous trees such as oak or maple?
34)
A) Pine trees need less water to do photosynthesis.
B) Pine trees produce twice as much glucose as deciduous trees.
C) Pine trees do not lose their leaves and can photosynthesize all year.
D) Pine trees get more sunlight than oak trees due to their darker color.
Answer:
C) Pine trees do not lose their leaves and can photosynthesize all year.
Explanation:
In cold-temperate and Arctic regions, however, evergreens are typically cone-bearing shrubs or trees (conifers), such as pines and firs. Many tropical species of broad-leaved blooming plants are evergreen. Thus, option C is correct.
What are features of pine trees?Pine trees may photosynthesize in the winter because they retain their needles all year long! Compared to trees that lose their leaves, this is a significant advantage.
Their leaves therefore stay green and stay attached for a longer period of time than their deciduous counterparts because they can preserve more water.
However, because of their tiny surface area, needles are not as effective at absorbing the sun's energy.
Therefore, Pine trees do not lose their leaves and can photosynthesize all year.
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What is the charge for all of the elements in Group 1?
"Good science" is based on evidence, and results are able to be repeated. *
True
False
Answer:true
Explanation:
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Answer:
Image result for plastic wrap for sandwiches
All you'll need is parchment or waxed paper and, if you're working with a hot sandwich or planning to slice the sandwich Explanation:
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Answer:
24 sq meters
Explanation:
4 times 6 is 24
Answer: Try 24m^2 so just type in answer box “2”
Explanation:
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viruses are not considered living organisms because they are not composed of:
Answer:
Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things
Explanation:
Answer:Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.
Question 9
Which is a negative impact of destroying the rainforests?
The Animals woud be hurt
Explanation:
The environment would be bad to be destroyed for the animals in the rainforest.
All organisms interact with and depend upon each other and their environment to satisfy their basic needs. Relationships between organisms include predation, competition, and symbiosis. Consider the food web. Select ALL of the relationships that exhibit competition for resources.
Answer:
Explanation:
Relationships in the food web that show competition for resources include:
Herbivores competing for producers. Carnivores competing for herbivores. Carnivores competing for other carnivores. What are some examples of competition in the food web?Competition in the food web involves organisms of different species trying to use the same resource.
A herbivore such as a cow competing with another herbivore such as a goat, to eat grass (producer) shows competition.
Leopards and Cheetahs competing for a rabbit shows carnivores competing for herbivores.
Then carnivores and omnivores such as lions and humans can compete for other carnivores as well such as jackals.
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Which equation best models cellular respiration? (1 point)
o 6H20 + 6CO2- C6H12O6 + 602 + Energy
O C6H12O6 + 602 6H20 + 6CO2 + Energy
O 6H20 + 6CO2 + Energy – C6H12O6 + 602
O C6H12O6 + 602 +6CO2-6H20 + Energy
The equation best models cellular respiration is: C6H12O6 + 602 = 6H20 + 6CO2 + Energy
CELLULAR RESPIRATION:
Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules.Cellular respiration can occur in the presence of oxygen (aerobic) and this combines glucose molecule to form carbon dioxide (CO2) and water (H2O) and release energy for use. The general equation for cellular respiration is as follows:C6H12O6 + 602 = 6H20 + 6CO2 + Energy
Therefore, the equation best models cellular respiration is: C6H12O6 + 602 = 6H20 + 6CO2 + Energy (ATP).Learn more at: https://brainly.com/question/13721588?referrer=searchResults
Answer:
For connexus students: Cell Work Unit Test
Explanation:
1. 12
2. Chlorophyll breaks down because there's less sunlight.
3. The Calvin-Cycle is light independent (does not need sunlight)
4. light
5. C6 H12 O6 + 6O2 + 6H2O + energy
6. Pyruvic Acid+ NADH --> Lactic Acid+ NAD+
7. Acetyl-CoA joins with a large molecule called oxaloacetic acid
8.Electrolosis
9. ATP
10. Krebs Cycle
11. Oxygen
12. 12
13. Ectotherms cannot insulate- and can only control their body temperature by choice.
14. Shivering
Which statement is a hypothesis that would best address the question "Are rainbow trout eating all the macroinvertebrates in streams and starving out other fish species?" If rainbow trout are eating all the macroinvertebrates, then keeping rainbow trout out of new river habitats will allow native species to recover. If rainbow trout are eating all the macroinvertebrates, then introducing them to other streams will help native species recover. Rainbow trout will eat a variety of macroinvertebrates and native fish species. Rainbow trout hunt and prey upon native fish species.
A possible hypothesis here is; "If rainbow trout are eating all the macroinvertebrates, then keeping rainbow trout out of new river habitats will allow native species to recover."
A hypothesis is a statement that is tentatively put forward to explain an observation. Usually, a hypothesis is an if .... then statement. This is one of the first things that we must look out for when considering each of the statements.
Since we have observed that rainbow trout eating all the macroinvertebrates in streams and starving out other fish species, it follows that keeping rainbow trout out of new river habitats will allow native species to recover."
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The light-dependent reaction should happen before the Calvin cycle because ________.
Select one:
a. its products are important to the fixation of carbon dioxide.
b. plants are more active during the day than at night.
c. photosynthesis happens faster when there is sunlight.
d. more products are produced during the day than at night.
hazards to humans that come into contact with it,
4. Study the graphs in the stimulus. Order the events that occurred at the Bodega Bay study
site, where scientists used traps to catch and count samples of marine organisms, from
1to 5. Write a 1 by the first event to occur and a 5 by the last event.
5 The number of native clams per sample falls from 100 to 10.
1 Scientists find European Green Crabs in Bodega Bay.
4 Scientists find that the number of native clams per sample has risen to 40.
3 The number of native shore crabs per sample falls from 25 to 20.
2 The number of European Green Crabs per sample falls from 5 to 4.
what forms after the glycosidic linkage reaction between glucose and galactose is complete
What forms after the glycosidic linkage reaction between glucose and galactose is complete would be lactose.
Glucose and galactose are known as simple sugars or monosaccharides. Monosaccharides can combine together to form disaccharides or even polysaccharides.The combination of monosaccharides to form di or polysaccharides happens by a process known as condensation reaction.The condensation reaction results in the formation of glycosidic linkage or bond and elimination of water moleculesGlycosidic bond is a type of covalent bond th joins one sugar molecule to another sugar or non sugar molecule.Thus, lactose is a dissacharide consisting of one glucose and one galactose unit which combine together by condensation and formation of glycosidic bond with elimination of water.
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Answer:
Water and lactose.
Explanation:
Glucose and galactose combine via glycoside linkage, forming lactose and water. Lactose is a sugar mostly found in milk.
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The diagram below shows a cell placed in a solution.
A cell is shown placed inside a beaker. It is labeled Cell. The solution inside the beaker is labeled 2 percent salt solution and the solution inside the cell is labeled 4 percent salt solution.
What will most likely happen to the cell?
It will expand as water moves out of it.
It will shrink as water moves out of it.
It will expand as water moves into it.
It will shrink as water moves into it.
Answer:
It will expand as water moves into it.
Explanation:
Answer:
D.It shrink as water moves into it
Explanation:
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which area of the brain is responsible for many of our circadian rhythms including sleep?
Answer:
Hypothalamus
Explanation:
It is found in the forebrain
In single celled organisms what are the materials primarily stored in?
Answer:
In single-celled organisms, materials are stored primarily in. ribosomes.
Mistletoe is a plant that lives on the branches of trees. The mistletoe plant sends its roots in through the bark of trees and takes away water and minerals that the tree needs.
Explanation: