What is the most common molecule in living things?
A. H2
B. CO
C. CO2
D. H20
Answer:
H20
Explanation:
because all living things need water(H20) in other to survive
The law of April 6 1830 signaled a major shift in
Answer:
This isn't biology LOL. But "the implementation of the American policy of westward expansion."
Explanation:
3. (4pts) A constraint is a limitation or condition that must be satisfied by a design. For example, you may onl
be able to use certain materials, or you might want the device to operate at a certain speed.
What was a constraint (a limitation or a condition) in this version?
Answer:
As seen in the question above, "constraint" is a word that indicates a limitation or condition. In this case, we can say that the "restriction" is an imposition to a limit under a given situation, and it can also mean an imposition of the free execution of an activity, skill and even limitation and a conditioning factor to a certain freedom.
Which of the following occurs
while homologous chromosomes
are paired up?
A. They create 2 haploid cells.
B. They contain 6 chromatids.
C. They exchange portions of their DNA.
D. They produce two diploid cells.
Answer:
Explanation:
the answer is c just answered
What macromolecules make up most of the structure that is shown?
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
Answer: B. Lipids
Explanation:
The macromolecules that make up most of the structure that is shown is lipids.
What are lipids?Lipids are organic compounds that consists of fatty acids or their derivatives and are insoluble in water but soluble in organic solvents.
From the given image we can conclude that, the macromolecules that make up most of the structure that is shown is lipids.
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please help Mark and Vikki live in two different areas of North America. The temperature in Mark’s town today is 30°F. The temperature in Vikki’s town is 82°F. In both towns, the relative humidity is 90%. Is the amount of water vapor in the air the same in Mark’s and Vikki’s towns? Explain your answer.
Answer:
I think that the amount of water vapor in the air will be different because in Mark's town, it is cold and water in the clouds might turn to ice and come down as snow. And in Vikki's town, it is very warm so the water vapor might come down as rain.
I hope this helped! I was in a rush but I'm positive that this is correct.
Describe the location of the kneecap to the knee joint
Answer:
superior
Explanation:
What is thought to be the main driving force behind plate movements?
A. Hot plumes
B. Simple convection cycles in the mantle
C. Slab-pull
D. Slab-push
Answer: b
Explanation: the convection currents in the mantle are what cause the movement of the plates
Answer:
slab pull
Explanation:
Which component of the earth’s atmosphere is decreased due to photosynthesis?
ozone
oxygen
hydrogen peroxide
carbon dioxide
Answer:
Carbon Dioxide
Explanation:
Let's see the reaction of Photosynthesis
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
Where carbon dioxide and water are reactants and glucose and oxygen are products which means CO₂ and H₂O are taken from the environment and glucose is supplied to plants while oxygen is supplied back to the environment.
How can you distinguish the dorsal and ventral sides of an earthworm?
Answer:
Yes
Explanation:
The earthworm has a rounded dorsal (back) surface and a flatter ventral (belly) surface. Usually the dorsal surface is darker than the ventral surface (though sometimes this is obscured in the preservation process).
Answer:
The ventral side is lighter than the dorsal side and more pale and kind of flattened unlike the dorsal side which is darker and round.
Explanation:
Which examples describe biotic factors interacting with the environment?
Answer:
Examples of biotic components:
animals, plants, bacteria etc...
Is this the answer you want?
Answer:
D: Butterflies resting on the flower of a plant
Explanation:
I hope this helps! i took the test if y'all needed to know
Which factor can cause secondary succession?
clear cutting
Oglacial melting
Answer:
Hey!
Your answer is CLEAR CUTTING...
Explanation:
Clear cutting is when people/ industries harvest and regenerate trees areas in which all trees are cleared from a site completely...
HOPE THIS HELPS!!
Clear cutting can cause secondary succession. So, the correct option is A.
What is Secondary succession?When a place is disturbed but not severely enough to completely clear it of all vegetation and soil, secondary succession happens. Secondary succession can be started by a variety of disturbances, including fire, flooding, high winds, and human activities (such as logging of forests).
After the primary succession has indeed been disrupted as well as some animals and plants are still there, the secondary succession occurs. For the reasons listed below, the secondary succession is typically quicker than the primary succession.
There is already earth in place.The soil may still contain seeds, roots, and subsurface vegetative organs.Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Which factor can cause secondary succession?
clear cutting
glacial melting
competition
predation
3
How does rain form?
Water rises, cools, evaporates, and then condenses.
Water cools, condenses, evaporates, and then rises.
Water evaporates, cools, rises, and condenses.
Water evaporates, rises, cools, and then condenses.
Answer:
D
Explanation:
The vaccine in a flu shot contains weakened flu viruses. How does a flu shot
work with the immune system?
O A. It delivers antibodies to the muscles.
B. It delivers antibiotics.
C. It activates macrophages.
D. It activates the production of memory cells.
The bond formed from electrons that are transferred is a(n) _____.
Answer:ionic bond
Explanation: Ionic bonds form when electrons are transferred, covalent bonds form when electrons are shared. polar covalent bonds form when electrons are shared unequally (basically).
Answer:
Ionic Bond
Explanation:
Ions:
Those atoms which lose or gain(transfer) electrons are called ions.
Ionic Bond:
Ionic bond is the bond formed between two oppositely charged ions due to the result of transferring of electrons.
A group of researchers at Stanford University developed software that can be used to distribute the processing of data to anyone who is willing to donate time on their idle personal computers. As a result, the researchers have been able to achieve protein-folding simulations that are far better than those other computing methods have done. Which statement best describes the work of these researchers?
Answer:
The first one sentence all of it because it describes the work they do
Explanation:
How does energy affect competition in a rainforest?
Answer:
Energy affects competition in the tropical rainforest due to the dense population of trees found in this region.
Trees are producers and they compete mainly for water, sunlight and nutrients. Sunlight provides the source of solar energy which is instrumental in its photosynthetic process.
The trees form canopies and create competition among the ones who have lower stems and branches while the ones with longer stems continue to grow taller due to the availability of sunlight.
Competition may also affect the organisms living in this region as they compete for food.
What best explains the relationship between photosynthesis and cellular respiration? A. The higher the rate of formation of products in respiration, the lower the rate of photosynthesis. B. Photosynthesis depends on the carbon dioxide released during cellular respiration. C. Cellular respiration depends on the water released during photosynthesis. D. They have the same set of product molecules.
Answer:
B.
Explanation:
Photosynthesis depend on the carbon dioxide and water released during cellular respiration because these two are the reactants of photosynthesis.
Answer:
Answer: Photosynthesis depends on the carbon dioxide released during cellular respiration.
Explanation:
Got it right on the test.
Which element is considered the most versatile element in living organisms and why?
Answer:
Carbon
Explanation:
Answer:
C: carbon, because it can bond with many elements to form complex molecules
Explanation:
I do not know if it's okay.
Which pedigree symbol is used to represent a female carrier of a recessive X-linked trait?
Answer:
B.
Explanation:
Answer:
Half-Circle
Explanation:
Question 7 (1 point)
What does not produce carbon dioxide?
a
b
oooo
Animal respiration
Photosynthesis
Plants decaying
Burning Fossil Fuels
d
Answer:
a
Explanation:
Is a benign tumor considered to be cancer?
Answer:
no. (more info below)
Explanation:
a benign tumor does not interfere or invade nearby tissue or spread to other parts of the body the way cancer can. a tumor is simply an abnormal growth of cells that serves no purpose
hope this helped!
The birds shown above have beaks with three different shapes and sizes. These genetic variations in the beak each appeared initially due to
Answer:
mutations
on edge
It was Charles Darwin who called the birds seen on the Galapagos islands as the finches. These birds show a remarkable diversification in their beak based on their chief food.
What are Darwin's Finches?Charles Darwin observed a group of small sparrow like black birds with strong, short beaks which are known today as Darwin's finches. These finches varied on different islands, but they were closely related to one another.
These finches evolved from a common ancestors to have different beaks well suited for different types of food they feed on. Generally long and pointed beaks are suitable for seed and cactus feeders. Even some short beaked finches tear up the base of the cactus and feed on its pulp.
The slender and sharp beaks are common in insect eating finches. The process by which they successfully evolved and radiated to different habitats is called the adaptive radiation.
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Your question is incomplete most probably your full question was:
Some birds have beaks with three different shapes and sizes. These genetic variations is the result of which theory?
What is the purpose of a control sample that is known to be from a given
species in an eDNA surveillance for that species?
A. To identify samples containing the target DNA
B. To produce multiple banding patterns in a gel
C. To amplify the DNA in small samples
D. To identify every species found
Answer:
B. To produce multiple banding patterns in a gel
Explanation:
Describe what would happen to the abiotic factors within the ecosystem if the bacteria were eradicated from the ecosystem.
Answer: If a abiotic factor was to be removed from the ecosystem it can affect the entire ecosystem and all of the organisms that live there
Explanation:
Abiotic means which does not have life for example air, water, soil. Absence of bacteria can influence the abiotic factors in adverse ways.
What are abiotic factors?Abiotic components plays a major role in ecosystem, while biotic components are dependent on abiotic factors for their survival.
Both abiotic and biotic factors are related to each other, if any of these factors changes, it will adversely affect the ecosystem.
For instance, if bacteria were eradicated from ecosystem, it will affect the functioning of abiotic components which can result in increased pH, decreased decomposition etc.
Thus, the abiotic factors will get affected adversely if bacteria were eradicated from the ecosystem.
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Animals cells have which of the following characteristics? Select all that apply
Answer:
Animal cells have the following characteristics: no cell wall, no large vacuole, only small ones, cleavage furrows.
Explanation:
hope this helps
How did the elements begin to stratify?
VERY EASY QUESTION. WILL MARK BRAINLIEST
The Ring of Fire is a string of volcanic sites in the Pacific Ocean that stretches between the Americas, Asia, and Australia. What is the most likely cause of this volcanic activity?
The Earth’s core pushes through tectonic plates here
There is a high number of convergent tectonic plate boundaries
The melting of tectonic plates by particularly hot parts of the Earth's crust
The explosion of energy as a result of a collision between two nearby tectonic plates
Answer:
The melting of tectonic plates by particularly hot parts of the Earth's crust
Explanation:
The bottom area of a pond or lake where very little sunlight reaches is the
O trophic zone
O plankton zone
littoral zone
O benthic zone
Answer:
benthic zone
Explanation:
Answer:
D: benthic zone
Which of the following best describes why polar bears are a sub-species of brown bears instead of a completely separate species? A. Because they both have thick fur and 4 legs, so they are very similar B. Because they both live on the same continent, so they can’t be two separate species C. Because they can still breed in the wild. Once they no longer mate with brown bears, they will be considered a separate species D. All of the above
Answer:
d
Explanation:
