Answer:
For effect #1, the mutation will become more common (A). This is because with the organism having more children, the trait will be passed around much faster and will spread to surrounding groups of animals.
For effect #2, the mutation will become more common (A). This is because the disease will kill the animals who do not carry the gene leaving only the animals with the trait, making it much more common
For effet #3, the mutation will disappear (B). This is because the animal carrying the gene will slowly die off. After all, they will not be able to reproduce and pass the gene to their children.
For effect #4, the mutation will remain at a low level (C). This happens because since it procures no change there will be no reason to transfer it so it will become a recessive trait in the animals.
Explanation:
Hope this helps. . . <3
49. Shoot the Plasma Cell Membrane. The cell membrane is the ___________________________ of all cells. It regulates what ____________________and _____________________ the cell to help maintain homeostasis. The cell membrane is _____________________________ which means it allows substances to pass through, but not others.
Answer:
The cell membrane is one of the great multi-taskers of biology. It provides structure for the cell, protects cytosolic contents from the environment, and allows cells to act as specialized units. A membrane is the cell’s interface with the rest of the world - it’s gatekeeper, if you will. This phospholipid bilayer determines what molecules can move into or out of the cell, and so is in large part responsible for maintaining the delicate homeostasis of each cell.
Explanation:
Cell membranes are semipermeable, meaning they have control over what molecules can or cannot pass through. Some molecules can just drift in and out, others require special structures to get in and out of a cell, while some molecules even need an energy boost to get across a cell membrane. Each cell’s membrane contains the right mix of these structures to help that cell keep its internal environment just right.
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A wet-mount slide of red onion cells is studied using a compound light microscope. A drawing of one of the cells as seen under high power is shown below.
Part A: In the space below, identify the name of each structure, A, B, and C. Use the terms listed as a word bank. (2 points)
Part B: A highly concentrated salt solution has been added to the slide that this plant cell is on. Explain, in detail, what you would expect to see happening to the plant cell as a result. (2 points)
Answer:
b
Explanation:
It is rectangular and it is outside
I had this lab where I had to blow bubbles and measure their diameter. It in wasn’t a controlled environment at all. It was in an enclosed room but that’s pretty much it. What are some factors that could’ve led to experimental error or messed with the bubble sizes?
Answer:
if there is wind - can make it go in different direction
amount of solution
how hard you blew
Explanation:
The earth's differentiation and size were significant factors for life on Earth because Earth's composition and gravitational attraction
a.. keep the moon and sun in orbit
b. keep people grounded
c.. helped to create and retain Earth's atmosphere
d.create and retain internal heat
Answer:
C
Explanation:
Based on the productivity data provided to you, as well as data you collected on algal standing crops and number of catfish at Bat Rocks and Cess, construct an explanation based on evidence for how sunlight regulates the productivity of algae, the number of catfish in a pool, and the resulting standing crop of each. (exploring biomass pyramids interactive simulation)
The biomass of producer is higher than the population of catfish.
Sunlight regulates the productivity of algae by allowing the algae to make their own food through the process of photosynthesis. This algae better the quality of water, provide oxygen for the aquatic organism and food for many herbivore aquatic organism.
Algae needs sunlight, carbondioxide and water for the process of photosynthesis. Catfish population in the pool increases as the biomass of algae increases because more food is available for the catfish which allows them to grow and increase their population.
In pyramid or trophic levels, the biomass of algae and other plants are the largest which is present at the bottom whereas as we go in the trophic level, population of organisms increases so we can conclude that biomass of producer is higher than the population of catfish.
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Which of the following causes the myosin head to become cocked, or energized?
Answer:
a. ATP adenosine triphosphate
Explanation: correct/post protected.
which organelle gives the plant cell strength and protection?
Answer:
cell wall
Explanation:
The cephalic veins are used for which of the following?
Answer:
a. As an insertion point for I.V. lines
Explanation: is incredibly correct
sometimes I brush my teeth with peanut butter instead of toothpaste mmm
Which step should you take before you begin a scientific investigation
Answer:
Before you begin to plan a scientific investigation you first a Perform background research to learn what is already known about the question you are trying to answer. You Create the data that will support your hypothesis.
Explanation:
Step 1: Record your observations.
These should be objective rather than subjective observations. In other words, the findings should be able to be independently verified by other scientists. Subjective observations based on personal views and opinions are not considered scientific. Here's an example of an objective statement: The temperature in this room is 58 degrees Fahrenheit. Here's an example of a subjective statement: This room has a pleasant temperature.
Making objective observations is the first stage in the Scientific Method. These assertions are based on specific events that have occurred and can be verified as true or incorrect by others.
Step 2: Come up with a hypothesis.
Our observations provide information about the past or present. We want to be able to forecast future events as scientists. As a result, we must rely on our reasoning abilities.
Scientists use historical data to establish a general principle or explanation that may be used to anticipate future events. A hypothesis is the term for the general principle. Inductive reasoning is the type of reasoning involved (deriving a generalization from specific details).
Step 3: Make an educated guess.
Step 2 resulted in a tentative hypothesis that may or may not be correct. How will we know whether our hypothesis is correct?
Our theory should be broad in scope and apply consistently over time and space. Scientists are rarely able to test every possible scenario in which a hypothesis could be valid. Consider the following hypothesis: A nucleus can be found in all plant cells. We can't test this idea by looking at every living plant and every plant that has ever lived. Instead, we use deductive reasoning to make a prediction. We can make the following prediction based on our hypothesis: Each cell in a blade of grass will contain a nucleus if I inspect it.
4. Carry out an experiment.
To gather information, we once again rely on our sensory sense. Based on our prediction, we devise an experiment.
The following is a possible scenario for our experiment: A total of 1000 patients aged 50 to 70 will be randomly allocated to one of two 500-person groups. The experimental group will receive Celebra four times daily, whereas the control group will receive a starch placebo four times daily. Patients will not be able to tell if their tablets are Celebra or placebo. The medications would be taken for two months by the patients. Medical exams will be performed at the end of the two-month period to see if the flexibility of the arms and fingers has changed.
Step 5. Analyze the results of the experiment.
The experiment produced the following results: 350 of the 500 people who took Celebra reported diminished arthritis as the end of the period. 65 of the 500 people who took the placebo reported improvement.
Step 6. Draw a conclusion.
From our analysis of the experiment, we have two possible outcomes: the results agree with the prediction or they disagree with the prediction. In our case, we can reject our prediction of no effect of Celebra. Because the prediction is wrong, we must also reject the hypothesis it was based on.
Step 7. Report your results.
Scientists publish their findings in scientific journals and books, in talks at national and international meetings and in seminars at colleges and universities. Disseminating results is an essential part of the scientific method. It allows other people to verify your results, develop new tests of your hypothesis or apply the knowledge you have gained to solve other problems.
Someone plz help me :(
Answer:
B
Explanation:
rna processing converts the rna transcript into _____.
Answer:
It converts RNA transcript into mRNA!
Explanation:
If you follow the steps of the Protein Synthesis, this will make sense (this is just a brief overview of it). So, you want to go from DNA --> RNA --> Protein. First, we start out with DNA that is inside the nucleus. From there, the DNA gets transcribed (transcription) into RNA (still in the nucleus). Next, the RNA gets spliced and synthesized into mRNA. mRNA gets exported from inside the nucleus to the outside of it through a nuclear pore and is now residing in the cytoplasm. Then, it gets translated (translation) into an amino acid chain. Finally, the a.a. chain will be synthesized into a protein.
Que es la atmosfera?
la envoltura de gases que rodea la tierra u otro planeta. ¿Es esto lo que quieres decir?
Urgentttt
Which of these choices is the main threat to the survival of polar bears?
A. Climate change
B. Illegal poaching
C. Demand for pelts
D. Loss of shelter
Answer:
A
Explanation:
Answer:
A
Explanation:
Hope this helps
which type of protein domain do transcription factors contain?
Answer:
DNA-binding domain
homeodomain proteins, which are encoded by homeobox genes, are transcription factors.
Who first recognized the cell as the universal unit of life
Answer:
Credit for developing cell theory is usually given to three scientists: Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow. In 1839, Schwann and Schleiden suggested that cells were the basic unit of life.
Pesticides are often used by farmers to kill or control certain forms of animal life that are harming the crops. Some of the chemicals used can be biologically magnified and affect endangered species. One of the best laws we have to control pesticide use in the environment is the Endangered Species Act.
Which is the most likely result of enacting legislation to restrict the use of pesticides?
A.
Increasing the mutation rate in endangered species
B.
Reducing biodiversity in various ecosystems
C.
Decreasing the space and resources available
D.
Causing pesticides to become more toxic to insects
Answer:yo
Explanation:
The global causes that drive those processes in Box 2
Global Causes
2
Sun
Ocean Currents
Gravity
Answer:Earth is constantly changing as energy flows through the system. Geologic, fossil, and ice records provide evidence of significant changes throughout Earth's history. These changes are always associated with changes in the flow of energy through the Earth system. Both living and non- living processes have contributed to this change.
Explanation:that will help you
Match each cranial nerve with the correct label.
Answer:
yes. the photo is correct
Explanation: post protected
A bacterium has just been introduced into a cup of coffee that contains copious amounts of sucrose but no other types of sugar. In this environment, what form of gene metabolism would be seen in the bacterium
Answer:
sucrose
Explanation:
Why does groundwater's level in the water table remain unchanged after use
Answer:
The level of the water table can naturally change over time due to changes in weather cycles and precipitation patterns, streamflow and geologic changes, and even human-induced changes, such as the increase in impervious surfaces, such as roads and paved areas, on the landscape.
what usually happens to most of the energy that is not passed to the next trophic level or used tp carry out cellular processes in an organism
True or False: Blood contains red blood cells, white blood cells, platelets, and plasma.
Answer:
TRUE
Explanation: is correct
How do I decrease the production of human growth hormone?
Answer:
1.Lose body fat. ...
2.Fast intermittently. ...
3.Try an arginine supplement. ...
4.Reduce your sugar intake. ...
5.Don't eat a lot before bedtime. ...
6.Take a GABA supplement. ...
7.Exercise at a high intensity. ...
8.Take beta-alanine and/or a sports drink around your workouts.
Explanation:
How do you think heredity and environment affect or connect to defects?
Answer:
Like gender and temperature, influence gene expression. Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.
cell membranes contain a central bilayer formed by:
Answer:
Lipids
Explanation:
The cell membranes are primarily made up of two layers. The central bilayer is formed by the lipids in the cell membrane. Lipids surround the cytoplasm of cells to help the cell control substances that go in and out of the cell. This helps to protect the cell from a harmful substance that may potentially enter the cell.
(Some information from "StaceeLichtenstein" on Brainly)
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Which of the following options correctly depicts the schematic pathway of a reflex action?
stimulus, motor neuron, brain, sensory neuron, muscles/glands, response
stimulus, sensory neuron, spinal cord, motor neuron, muscles/glands, response
stimulus, sensory neuron, brain, motor neuron, muscles/glands, response
stimulus, motor neuron, spinal cord, sensory neuron, muscles/glands, response
In order to use this DNA technique, the research team first collected DNA from 400 plant species that grow on the African savanna and entered the sequence data into a database. Explain why this was a necessary first step.
Answer:
a. It is important to isolate the undigested plant material since the digested plant material cannot be used since the cell wall will be broken and the enzymes like DNases and other digestive enzymes will break down the organelle membranes and the DNA will be degraded.
If it is not isolated properly the other contaminants and the other enzymes, proteins and debris will interfere with the quality of the DNA. The isolation of undigested ensures that intact DNA can be isolated with the minimum amount of unwanted contaminants.
b. Metabarcoding is the technique through which several DNA/RNA samples are isolated and sequenced from a small or section of the sequence from a common sample to identify the different species present. This is done by isolation, amplification (PCR), and sequencing using a sequencer by comparing to the database. The database is formed by sequencing the known species in the area and then comparing the sequence data obtained from the sample to the database and when it matches the database sequence we can conclude that this species is present in the sample. Hence DNA from 400 plant species that grow on the African savanna and entry of the sequence data into a database was important.
Explanation:
Collecting DNA from 400 plant species on the African savanna and entering their sequence data into a database was crucial as an initial step to enable comprehensive genetic analysis.
An important first step was collecting DNA samples from 400 different plant species found on the African savanna and entering their genetic sequences into a database. This vast genomic database serves as a starting point for subsequent comparative study.
Researchers can use this information to identify the genes that are in charge of features essential for agricultural and pharmaceutical uses, such as disease tolerance, drought resistance, and medicinal qualities. This DNA database also advances our knowledge of the complex biodiversity of the savanna, aiding in conservation efforts and more comprehensive ecological research.
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A developer proposes building a new geothermal power plant in a city located on the
interior of the North American Plate to provide electricity for a new housing development.
Make a claim using evidence that supports or opposes this proposal.
Based solely on scientific evidence, we can make a claim that supports the idea of a geothermal power plant due to its stability, environmental safety, and high potential.
A geothermal power plant involves hot water being pulled from underground reservoirs located near thermal vents. Once the water reaches the surface, the immediate decrease in pressure causes the water to become steam, this steam, in turn, causes a turbine to spin, which generates an electric current through a generator.
This source of energy is environmentally safe considering its waste product produced is water vapor, making it a great option for modern-day energy requirements. This source of energy also has huge future potential and is very stable due to its being a renewable resource.
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which step of scientific inquiry involves testing the hypothesis and collecting data?
The answer for this question would be letter A. Experimentation takes in by experimenting with your hypothesis, knowing what will happen and then gathering data from the outcome of the experiment. For your data, you create your analysis of what had happened then conclude.
Explain why mirages occur.
Answer:
Mirages happen when the ground is very hot and the air is cool. The hot ground warms a layer of air just above the ground. When the light moves through the cold air and into the layer of hot air it is refracted (bent). A layer of very warm air near the ground refracts the light from the sky nearly into a U-shaped bend.
