Answer:
Pro there is no picture provided : /
What are two ways scientists use evidence of past environments preserved in
rock?
A. To confirm whether an organism could have lived where its
fossils are found
B. To confirm that conditions in different places have changed
C. To confirm why each individual organism became a fossil
D. To confirm which organisms are most closely related to each
other
1. Mutations which arise from exposure to mutagenic agents are:
a. Agent mutations
b. Spontaneous mutations
c. Induced mutations
d. Point mutations
Answer:
Induced Mutations
Explanation:
Induced Mutations occur through exposure to a mutagen.During the relative refractory period, _______. During the relative refractory period, _______. another action potential can be generated provided the stimulus is relatively smaller than the original stimulus. another action potential can be generated provided the stimulus is large enough. the flow of potassium is also depolarizing the neuron. a second action potential cannot be generated, no matter how strong the stimulus.
Answer:
During the relative refractory period, another action potential can be generated provided the stimulus is large enough.
Explanation:
The relative refractory period is the time after an action potential where the sodium channels are transitioning from inactivated channels to closed ones. In other words, voltage-gated Na+ channels have two gates, an external one and an internal one. During repolarization, the outer gate is blocking the entrance, and the internal one is open. So the channel is inactivated. When the inner gate is closed, the Na+ channel is closed.
During the relative refractory period, a second action potential can happen, but the stimulus has to be large enough to do it since the membrane is hyperpolarized, that is to say, the membrane potential is more negative than the resting action potential. The cell needs more Na+ ions to produce the second action potential.
introduced species often take over an ecosystem because they usually _____.
Answer: lack of predators
Explanation: Introduced species often take over the ecosystem because of the lack of predators that usually feed on them and keep their numbers in check.
What is the name for the group of approximatley 100 cells that forms a fertilized egg
Answer:
blastocyst
Explanation:
it's blastocyst with 100 cells
amoeba sisters: nature of science
Answer:
The scientific mrthod is a process used by scientists to find answers to a question or to solve a problem. No there isn't just one because there are several versions of the scientific method. Some versions have more steps, while others may have only a few. Scientists can add steps, take out steps, revise, or make models.
The scientific method is a systematic approach used by scientists to investigate and understand the natural world.
It consists of a series of steps that guide the process of conducting scientific research and acquiring knowledge.
While there is a general framework for the scientific method, it is important to note that there is no single, universally accepted version of it.
The exact steps and emphasis may vary depending on the field of study, the specific research question, and the nature of the scientific inquiry.
Different branches of science may have their own specialized methodologies and techniques.
For example, the methods used in social sciences or qualitative research can differ significantly from those used in the natural sciences.
Thus, this is all about scientific methods.
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True or False:
Glycolysis joins glucose to other molecules to make pyruvate.
Answer:
False
Explanation:
Glycolysis is the breakdown of glucose by enzymes releasing energy and pyruvic acid.
Answer:
False it breaks down glucose
Explanation:
what are cells surrounded and protected by?
Answer:
cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments. The cell membrane is sometimes also referred to as the plasma membrane.
Answer:
The plasma membrane, or cell membrane
Explanation:
The survival of a living organism occurs when what?
Answer:
Every organism has a unique ecosystem within which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive.
Explanation:
I think this type of ans. u want bcoz apne mention nhi kra
2. The movement of tectonic plates and the cycling of Earth materials are
the direct result of which of the following *
Nuclear fisson
Solar radiation
Thermal convection
Magnetic attraction
Answer :
Thermal convection
Explanation :
The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.
Answer:
Thermal Convection
Explanation:
Just trust me, it was on my quiz for stemscopes.
What are the two types of basic current
Answer:
direct and alternating
Explanation:
Answer:
s and f
Explanation:
Match the following vocabulary with the definitions.
1. Occurring in the presence of oxygen
2. The stage of respiration that occurs in anaerobic condition In animal cells
3. The first step in the chemical breakdown of glucose
4. Occurring in the absence of oxygen
5. The stage of respiration that occurs in anaerobic conditions In less complex organisms
lactic acid fermentation
anaerobic
alcohol fermentation
glycolysis
aerobic
Answer:
aerobic- 1. Occurring in the presence of oxygen
lactic acid fermentation- 2. The stage of respiration that occurs in anaerobic condition In animal cells
glycolysis- 3. The first step in the chemical breakdown of glucose
anaerobic- 4. Occurring in the absence of oxygen
alcohol fermentation- 5. The stage of respiration that occurs in anaerobic conditions In less complex organisms
Explanation:
The picture below represents which
stage of photosynthesis?
A. Dark reactions
B. Calvin Cycle
C Glycolysis
D Light reactions
It represents Glycolysis, a key metabolic route that produces energy and generates precursors for the production of primary metabolites in plants. Thus, option (C) is correct.
Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis in green plants to change water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
The first method of breaking down glucose to release free energy is called glycolysis .Two molecules of pyruvate, two molecules of ATP, two molecules of NADH, and two molecules of water are produced during glycolysis.
Hence, the picture depicts the process of gylcolysis , stage of photosynthesis i.e option (c)
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Droughts occur due to climate change and elevated temperatures, which in turn may lead to other consequences as well. Imagine that a wildfire happened in the nature reserve. Predict what would happen if such an environmental shift that is so extreme and rapid
hits the nature reserve and the population of deer mice does not have time to adapt. Propose a possible solution for this problem.
Answer:
Research shows that changes in climate create warmer, drier conditions. Increased drought, and a longer fire season are boosting these increases in wildfire risk. ... Changes in climate add to these factors and are expected to continue to increase the area affected by wildfires in the United States.
What is the cause for a new trait this badger may exhibit?
A. DNA mutation
B. Natural selection
C. It's not possible to see a new trait if neither parent had it.
Calculate during one year, the birth rate in a country is 28 births per 1000 people, and the death rate is six deaths per 1000 people what is the population growth rate?
Answer:
27
Explanation:
Javier investigated what happens when Earth's plates meet. He found that as Earth's plates meet at plate boundaries and interact, they move in three different ways. The ways they interact produce changes on land and on the ocean floor. What are the kinds of boundaries that plates form? Label each plate boundary with the correct type from the choices below.
Answer:
I. Divergent
II. Convergent
III. Transforming
Explanation:
The crust is the outermost layer of the earth. It is divided into many plates that move over the mantle. Nowadays, there are six different bigger plates and twelve that are smaller. These plates are limited by three types of ridges or borders that differ in the movement they produce.
Boundaries types:
I. Divergent: New crust is created by the rising molten materials coming from the mantle. Two plates separate, and the stream of hot material creates a new seabed between them. It occurs an expansion of the sea bottom. As old plates get separated, the new and young crust instantaneously gets formed. The emerging mantle occupies the space left by the separation of the two plates. This process occurs along with an underwater mountain range, known as the mid-oceanic ridge or divergent ridge. An example of this is the ridge located in the middle of the Atlantic Ocean, extending from Greenlander to the southernmost point of South America.
II. Convergent. Collision area between two plates. Two oceanic plates might collide, or one oceanic plate with a continental one. In this last case, the oceanic crust sinks under the continental plate, and magma rises to the surface by crevices. The thicker and older plate subduces under the other plate. The Himalayas and Los Andes are examples of these collisions. Also, collisions create volcanic arches and continental arches.
III. Transforming. The plates slide laterally with each other, and they are usually called faults. It is associated, in general, with the oceanic ridge, although it might also occur in the continental plate. No rocky material is either destroyed or formed. When the plates move and produce a displacement of one transforming limits from side to side, earthquakes occur. The movement breaks the crust and originates pronounced fractures. The San Andrés fault is an example of this plate ridges.
The kinds of boundaries that plates form is the fact that seismic activity takes place at the three known types of plate boundaries called divergent, convergent, and transform.
What happens when Earth's plates meet?If two tectonic plates meet, they create a kind of convergent plate boundary.One converging plates often shift or move below the other, in an act known as subduction.
The new magma (molten rock) tend to increase and may erupt to create volcanoes.
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PLLLLLLLLLLLLLLLLLLLLLLLLLLLLLZ HELP!!
Which of the following is an important process that takes place in an ecosystem?
thermodynamic process
data processing
decomposition process
cognitive process
Answer:
decomposing process is more important in an ecosystem
Answer:
Decomposition process
Explanation:
Decomposition process because when things decompose, there becomes more room for things to grow.
Also, have a great day or night where your at.
Last thing: Do you have Discord? If so, can I have your Discord?
The reason it is called a Frameshift mutation is because it alters the "reading frame" of the bases. The bases are normally read as
A. codons, in groups of 3
B. nitrogen bases, in groups of 2
C. anti-codons, in groups of 4
Answer:
A. codons, in groups of 3
Explanation:
The reason it is called a Frameshift mutation is because it alters the "reading frame" of the bases. The bases are normally read as codons, in groups of 3.
codons, in groups of 3. The reason it is called a Frameshift mutation is because it alters the "reading frame" of the bases. The bases are normally read as codons, in groups of 3.
What are Codons?Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein synthesis (stop signals).
There are 64 distinct codons, of which 3 serve as stop signals and 61 identify amino acids.
The messenger RNA is made using the DNA as a template, which is subsequently used to create a particular protein. The bases that make up DNA and the associated messenger RNA are called bases. These nucleotides are frequently identified in RNA by the letters A, U, C, and G.
Therefore, Codons, in groups of 3. The reason it is called a Frameshift mutation is because it alters the "reading frame" of the bases. The bases are normally read as codons, in groups of 3.
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What would most likely happen in the nitrogen cycle if denitrifying bacteria did not perform their role?
O A. The major source of nitrates would be from lightning.
O B. Chemical fertilization would be needed to add more nitrates to the cycle.
O C. Nitrate-forming bacteria would take over the affected ecosystems.
OD. Too much nitrogen would be bound up in the form of nitrates.
Answer:
D. Too much nitrogen would be bound up in the form of nitrates.
Explanation:
denitrifying bacteria are microorganisms whose action results in the conversion of nitrates in the soil to free atmospheric nitrogen. If there are no functioning denitrifying bacteria, there will be excess nitrate in the soil.
Hope this helps :)
Coupled transcription/translation is found in domains where there is no membrane-enclosed nucleus (Bacteria and Archaea) because _____. [Choose two.] Multiple select question. in Eukarya, RNA polymerase transcribes mRNA within the nucleus, while ribosomes are located in the cytoplasm the conditions within the nucleus prevent formation of peptide bonds by the ribosomes present in Eukarya, ribosomes transcribe mRNA within the nucleus, while RNA polymerases are located in the cytoplasm RNA molecules are destroyed by ribonucleases within the nucleus the machinery for both systems are in the same location (cytoplasm) in such domains eukaryotic ribosomes are more complex than those found in other domains and can't work near RNA polymerases
What is respiration and the types of respiration
Answer:
Hey mate......
Explanation:
This is ur answer.....
Respiration is the process by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.
Three types of respiration include internal, external, and cellular respiration. External respiration is the breathing process. It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells....
Hope it helps!
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Select the correct layers.
Which two layers are approximately the same age?
core sample 1
core sample 2
Answer:
Core sample 1: Lowest Layer
Core sample 2: Highest Layer
Explanation:
Both layers have the same fossils and textures of soil/rock, so we can assume overturning happened. Also, I got it right on the test!! :)
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Answer:
lowest layer of sample one and highest layer of sample 2.
Explanation:
What other major body system is a DIGESTIVE system working with closely?
Answer:
circulatory system
Explanation:
Where do you think the nutrients from the food that you eat go after digestion? The entire point of eating is to get energy and nutrients tot he other parts of the body and to do that you need the circulatory system.
Which of the following is a subsystem of an organism? Please explain and I give you 5 stars.
A.cell
B.organ system
C.tissue
D.all of the above
Answer:
D
Explanation:
In multicellular organisms, the body is a system of multiple, interacting subsystems. Subsystems are groups of cells that work together to form tissues. Interactions are limited to the circulatory, excretory, digestive, respiratory, muscular, and nervous systems.
Describe the rock cycle. Discuss what can happen to rock material within the
cycle and the amount of time it might take for rocks to be transformed.
PLZZ HELP I WILL GIVE U A BRAN LEAST !!!!
Answer:
The rock cycle is a constant transformation of rocks between the three rock types of igneous, sedimentary, and metamorphic. If the sediments are buried behind other layers of sediment, they can lithify and form sedimentary rock. When rocks melt, magma is formed. Rocks form deep below the Earth, move and sometimes change, rise to the surface, and eventually return to their original location.
How do plants make their food?
A. Photosynthesis
B. Digestion
C. Decomposition
Answer:
A. Photosynthesis
Explanation:
Photosynthesis is a process almost every plant goes through. The goal of the process is the create glucose, a sugar that can be turned into energy. Photosynthesis consists of 2 cycles: light-dependent and light-independent (aka Calvin Cycle). Photosynthesis requires carbon dioxide, water, and sunlight. These reactants can then be transformed into glucose and oxygen. Photosynthesis is the basis of energy for all animals.
Answer:
A. Photosynthesis
Explanation:
Plants make their own food by the process know as photosynthesis.
I’m confused help me pls
Claim: This process uses expensive fertilizers and pesticides to grow pest free crops which may be produced in excess. Explain the reasons why people would go against growing wheat this way.
Your answer: Here are 3 reasons that go against growing wheat this way.
1. The fertilizers and pesticides are expensive and cost farmers a lot which takes away from the revenue that farmers make from growing the crops in the first place.
2. Other then fertilizers and Pesticides its a lot of work as you can see on the chart throughout the year there are many things you must do too keep crops bug free and pest free this reason I'm explaining says that taking and doing all of this work for not pests/bugs is too much and not needed.
3. Fungicide Is needed a lot and incredibly expensive when you used/spray it on crops that much and point goes a lot more for large crops too.
If these reasons don't work, find factors that or counterclaims that go against this method of harvesting wheat. (This is what your supposed too do)
Which of the following are the main components of an mRNA vaccine?
mRNA and B-Cells that recognize the coronavirus
mRNA and antibodies that can inactivate the coronavirus
mRNA and spike proteins from the coronavirus
mRNA only
Feeding relationship that exist among organisms
Explanation:
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