Answer:
Earth's primordial soup
Explanation:
Alexander Oparin was a Soviet biochemist who proposed theories for the origin of life through a book he called "The Origin of Life". He claimed that life on earth came about as a result of a gradual chemical evolution which is a mixture of carbon-based molecules that he called Earth's primordial soup (or sometimes called "organic soup").
The apicoplast is a potential target for the development of antimalarial drugs. If it is important for the creation of precursors for all classes of biomolecules, explain what you would expect to find within it.
Answer:
Answer is b
Explanation:
I took the test
Which of the following is an example of a direct observation?
A. collecting online surveys
В. viewing cell division
C. interviewing witnesses to an automobile accident
Use the drop-down menus to complete each statement.
During the
trimester, the fetus rapidly gains weight.
During the
trimester, the fetus’s sex organs develop.
The umbilical cord forms during the
trimester.
The lungs do not develop until the
trimester.
Answer:
Third, First, First, Third are your answers.
Explanation:
Cause they are.
According to the question the answer as follow:
The umbilical cord forms during the trimester.During the trimester, the fetus rapidly gains weight.The lungs do not develop until the trimester.During the trimester, the fetus’s organs develop.Is a fetus a baby?After the embryonic period has ended at the end of the 10th week of pregnancy, the embryo is now considered a fetus. A fetus is a developing baby beginning in the 11th week of pregnancy.
Thus, these are the answer.
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Choose all of the examples of balanced forces. This is for science
A chandelier has been hanging in the kitchen for years
A log floats on top of the lake
You place your book on the top of a flat table
Your wagon rolls down the hill
The wind blows and turns the turbines of a windmill.
Answer:
A log floats on top of the lake
You place your book on the top of a flat table
Explanation:
What is different about the left and right ventricles of the heart? Why are they different?
Answer:
I forgot the names of the ventricles but one of them goes through the body with oxygen and blood and the other goes inside the heart with blood.
Explanation:
correct me if i am wrong
how do you compare yourself now from before
The deforestation of a wooded area increases erosion, resulting in increased sediment at the bottom of a nearby river. This leads to increased flooding in the area. Which of the following terms best defines this chain of events? A) uniformitarianism B) a positive feedback loop C) a negative feedback loop D) environmental unity
Answer:
D
Explanation:
Environmental unity means that everything is connected to each other and affects each other. Here, the wooded area affects the river, which affects the flooding.
Changing the shape or morphology of the mitochondrial inner membrane can change the efficiency of mitochondrial function.
Which of the following outcomes will most likely result from a change in the shape of the mitochondrial inner membrane from a highly folded surface to a smooth, flat surface?
Since, the options have not been given the question is incomplete the complete question is as follows:
Changing the shape or morphology of the mitochondrial inner membrane can change the efficiency of mitochondrial function.
Which of the following outcomes will most likely result from a change in the shape of the mitochondrial inner membrane from a highly folded surface to a smooth, flat surface?
A. Mitochondria will become more efficient because the inner mitochondrial membrane will become more permeable to ions.
B. Mitochondria will become more efficient because the total volume of the mitochondria will increase.
C. Mitochondria will become less efficient because the inner mitochondrial membrane will become less permeable to large molecules.
D. Mitochondria will become less efficient because the surface area of the inner mitochondrial membranes will decrease.
Answer: D. Mitochondria will become less efficient because the surface area of the inner mitochondrial membranes will decrease.
Explanation:
Mitochondria is called the power house of the cell as it produces energy by the oxidation of food in the form of adenosine triphosphate or ATP. The inner mitochondrial membrane comprises of numerous folds which are called cristae which increases the surface area for the chemical reactions necessary for the production of energy. If the folding increases the surface area for energy production will decrease as the surface area for chemical reactions will decrease. Thus the efficiency of mitochondria will decrease.
If the mitochondrial inner membrane becomes flat or smooth surface then this also decreases the surface area for chemical respiration, thus in this case too the efficiency of mitochondria will decrease.
Is true or false forming a hypothesis is the first strip of the scientific method
Answer:
FALSE
Explanation:
bcz the first step is to recognise the question or a problem.
second is observation to the problem
and then the hypothesis formulation comes
hope it helps :)))
We are a carbon-based life form. List three properties of carbon that make it an ideal element
from which to construct a wide variety of complex molecules.
Answer:
Carbon can form four covalent bonds because it needs four electrons to fill its valence shell. Carbon-based molecules can vary in the number of carbon atoms.
Explanation:
If anyone can answer all of these, they deserve big thanx!
Last questions of the night, I also need these before 12am and it’s almost 12!
Answer:
#4 177.5
Explanation:
add all the numbers and divide by 6
Which of the following actions would you take to remain safe in the lab?
Check all of the boxes that apply.
A bottle of liquid looks like water; you taste it to be sure.
While cutting a screen for an aquarium top, you point the scissors away from your body.
You pipette a liquid using a bulb pipette.
You heat a liquid by placing it in a plastic beaker on a hot plate.
You arrange all lab items neatly and make sure they are away from the edge of the lab table.
You arrange all lab items neatly and make sure they are away from the edge of the lab table.
You pipette a liquid using a bulb pipette.
The following guidelines should be included in most safety policies because they apply to practically all laboratories. They go on emergency preparedness, appropriate signs, safety gear, how to use lab equipment properly, and fundamental common sense standards.
Make careful to read any safety and fire alarm signs, and in the event of an accident or emergency, heed the directions.Make sure you are completely informed of the evacuation protocols for your building or facility.Make sure you are familiar with the location and proper use of all of the safety supplies in your lab, including eye wash stations, fire extinguishers, first aid kits, and safety showers.Be aware of the emergency phone numbers to call for assistance.Lab spaces with lasers, radioisotopes, and other biohazards need to be adequately labeled with warning signs.When working in the lab, avoid eating, drinking, and chewing gum.Never use laboratory glassware as a container for food or drink.Make sure to inspect your glassware for chips and cracks before each usage. Glassware that is broken should be reported to your lab manager so it can be disposed of properly.Never utilize lab equipment that you have not been given permission or been taught to use by your supervisor.Inform a technician as soon as possible if an instrument or piece of equipment malfunctions while in use or isn't functioning properly. Never attempt to fix a piece of equipment by yourself.
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Your teacher drinks a glass of water in the front of the classroom and claims, "this water could have been frozen in a glacier on Greenland thousands of
years ago."
Construct a diagram or write a paragraph to support this claim that water could have moved from a glacieron Greenland to a local Baltimore
County Reservoir and into your school's water fountain
Your model must include the following processes:
Transpiration, Evaporation, Precipitation, Condensation and Infiltration
Answer:
technically all water has been recycled so she technically is correct if it is real water and not artificial.
Explanation:
How is petroleum formed ?
(SCIENCE)
Answer:
Petroleum is a fossil fuel, meaning that it has been created by the decomposition of organic matter over millions of years. Petroleum is formed when large quantities of dead organisms–primarily zooplankton and algae–underneath sedimentary rock are subjected to intense heat and pressure.
Answer:
Explanation:
petrolism is formed when large quantities of dead organism mostly algae are buried underneath sedimentary rock and subjected to both intense heat and pressure.
What is translocation???
Answer:
absorption of water and minerals in plants
Answer:
the movement of something from one place to another
Explanation:
Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. Chromosomal translocations can be detected by analyzing karyotypes of the affected cells.
Which structures do ALL cells have in common
Answer:
a plasma membrane, cytoplasm, DNA, and ribosomes
Explanation:
hope this helps
Answer:
The cell structures that are common to all cells include the DNA or the genetic material; the cytoplasm, which is the fluid where the organelles are suspended in it; plasma membrane, also referred to as the cell membrane that serves as the cell's barrier to the external environment; and the ribosomes, which are the organelles in charge of producing proteins
Explanation:
if you climbed up a hill,which of these statements would be true
Answer:
A. your weight would increase because you're farther away from Earth's center
Explanation:
honestly I'm guessing
let me know if this helps
What does Mutualism mean? (Give definition, example & explanation)
Deforestation causes an increase in the atmospheric concentration of which greenhouse gas?
A fluorine
B methane
C nitrous oxide
D carbon dioxide
Answer:
i think its carbon dioxide.but not sure
Explanation:
remembering from like 3 months ago
Answer:
D. Carbon Dioxide
Explanation:
It is D. because trees absorb carbon dioxide and release oxygen into the air. So with out the tree's the Carbon Dioxide levels increase because there is nothing to absorb it.
can i have a brainliest?
Energy Change: Explain your ideas about energy changes that are taking place inside the mealworms.
Remember:
• Materials that mealworms use (arrows going in) are reactants in chemical changes
• Materials that mealworm produce (arrows going out) are products of chemical changes
When mealworms eat, chemical changes take place inside the mealworms. Chemical changes rearrange atoms. Bonds are broken in reactants. And new bonds are formed in the products.
Evidence of a chemical reaction includes a color or temperature change. Evidence of a chemical reaction can also be a gas or solid product made.
I think when a mealworm takes in_____
Level 4 responses should show potato/food arrows entering the mealworm, feces (and possibly urine) arrows leaving the mealworm and CO2 arrows leaving the mealworm.
Level 2 or 3 responses may show a variety of forms of matter without focusing specifically on molecules containing carbon atoms.
Energy Change: Explain your ideas about energy changes that are taking place inside the mealworms.
Level 4 responses should describe chemical energy moving from the potato into the mealworm and possibly chemical energy in the feces leaving the mealworm.
Level 2 or 3 responses may show a variety of forms of energy without focusing specifically on molecules containing high energy carbon bonds.
What are the three levels of cellular organization. List and describe.
Answer: tissues, organs, and organ systems. Similar cells are grouped into tissues, groups of tissues make up organs, and organs with a similar function are grouped into an organ system.
40 POINTS -What is the purpose of cellular respiration? How does it occur?
Answer:Cellular respiration is the process through which cells convert sugars into energy. To create ATP and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form.
Which of the following is not a function of carbohydrates?
a structure
b genetic material
c storage
d energy
Carbohydrates are the primary source of energy in living organisms. It is a macromolecule and one of the primary nutrients required by the body.
The functions of the carbohydrates are:
Carbohydrates such as cellulose are the primary component of the cell wall of plants, bacteria, and algae. The compound provides structural support to the cells. Carbohydrates such as starch and glycogen are stored and can be used as a source of energy in time of need. Carbohydrate like glucose is the primary compound in several enzyme-catalyzed reactions to yield ATP.Thus, the correct answer is Option B.
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visible characteristics of snake
Answer:
The jaws of snakes are loosely jointed and extremely flexible. There are no ears or movable eyelids; the eyes are covered by transparent spectacles, or ocular scales.
Explanation:
Snakes have good vision.There are no ears or movable eyelids; the eyes are covered by transparent spectacles, or ocular scales.
An organism’s niche is
a
all the physical and biological factors in the organism’s environment.
b
a full description of the place an organism lives.
c
the way the organism uses the range of physical and biological conditions in which it lives.
d
the range of temperatures that the organism needs to survive.
Answer:
c
Explanation:
its how the organism uniquely use their capabilities to operate in their environment
Why would it be important to understand what controls the number and types of species in an ecosystem?
•THERE’S ALSO OTHER QUESTIONS IN THE PIC (if you could answer them it would be appreciated)
Answer:The short film Some Animals Are More Equal than Others: Trophic Cascades and Keystone Species opens by asking
two fundamental questions in ecology: “What determines how many species live in a given place? Or how large
can each population grow?” The film then describes the pioneering experiments by Robert Paine and James Estes,
in the 1960s and 1970s, which started to address them. Paine’s experiments on the coast of Washington state
showed that the starfish is a keystone species, having a disproportionately large impact on its ecosystem relative
to its abundance. Estes and colleague John Palmisano discovered that the kelp forests of the North Pacific are
indirectly regulated by sea otters, which feed on sea urchins that consume kelp. The presence or absence of sea
otters causes a cascade of direct and indirect effects down the food chain, which in turn affect the structure of
the ecosystem. These early experiments inspired countless others on keystone species and trophic cascades in
ecosystems throughout the world.
Explanation:
HAND TYPED!!
Which graph shows logistic growth of a population? *
(2 Points)
OA
OB
A and B
neither A or B
Answer:
OB
Explanation:
im preeeeety sure
Pleaseee hellpppppp!!!!
Answer:
C
Explanation:
hope this helped and yes im postitive
How do you think that Karl von
Frisch gathered information
about the honey bee's
behaviour?
Answer:
Karl von Frisch is best known for two major discoveries about honey bees. First, he demonstrated that honey bees have color vision, and published these findings in 191*. Second, in 193* he showed that honey bees use a dance language to communicate food locations to other bees.
Explanation:
Figure 1. Grids for the color vision test. The training color, marked with T, is blue in both cases; all other squares are shades of gray. The left box shows how the grid appears to an animal with color vision. The right box shows how the same grid may appear to an animal without color vision. The training square appears to be the same shade of gray as other squares in the grid. If the test animal cannot see in color, it will confuse the training square with other squares matching its shade of gray.
This clever test for color vision can be applied to any animal which can learn to recognize a feeding station using visual patterns.
The dance language
von Frisch observed that once one honey bee finds a feeding station, many other soon appear at the same station. This suggests that the first bee recruits other bees to the food. How might honey bees recruit help in collecting food? von Frisch¹s discovery of the dance language of the honey bee required careful determination of the correlations between movements of bees inside the hive and the locations of feeding stations. He found two types of dance. The round dance (Figure 2A) causes bees to look for food a short distance (up to about 50 meters) from the hive. The waggle dance (Figure 2B) tells bees the direction and distance to fly to find more distant food sources. Scout bees use these dances to recruit assistance in collecting food resources.
4. When a kangaroo jumps, the kangaroo's action force acts on the ground, what would be the
reaction force?
acts on the kangaroo
c. lesser than the action force
b. exerted by the ground
d. greater than the action force
a
Answer:
D
Explanation:
because after the jump it will gain force forst