Answer:Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes
Explanation:
2. Wolves have genes that give them a very powerful sense of smell much more
powerful than humans, this is an adaptation by natural selection. The wolves that
reproduced more offspring with a better sense of smell thereby increasing the
frequency of those genes in the population that survived longer. Give an example of
adaptations in other organisms that may have resulted from variations that were
favored by natural selection.
Answer:
A good example may be represented by different shapes and sizes of beaks in finches living on different Galapagos islands
Explanation:
According to the evolutionary theory proposed by Darwin, natural selection is a mechanism that acts on heritable phenotypic variation among individuals within a population. Genetic variation can be considered as the primary source of heritable phenotypic variation. Those organisms that are better adapted for a particular environment will have more chances to survive and reproduce, thereby passing these heritable traits to the next generation. For example, during his work, Darwin observed that the shape and size of beaks in finch species from different islands in the Galapagos archipelago varied as a consequence, i.e., as an adaptation, to the availability of food resources present in each island.
An example of adaptations in other organisms that may have resulted from variations that were favored by natural selection. - The light-colored mice are an adaption favored by natural selection as they were able to live longer.
Adaptations are physical or behavioral traits that make an organism better suited to its environment. The inheritable variation comes from random mutations.
the example of such variations caused by natural selection are:
The Deer mouse adapted to the environment by developing a lighter color.The light-colored mice were able to live longer.Thus, The light-colored mice are an adaption favored by natural selection as they were able to live longer.
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You want to determine what vehicle will get you to school in the fastest amount of time. Each day at 6:30am, you drive a different vehicle: a Ferrari, a
Nissan 350ZX, a Mazda RX8, and a Neon SRT4. Your results state that the Ferrari takes you the least time to get to school. The dependent variable in
this experimentis
A.the time that you leave each day (6:30am)
B.the type of vehicle
C.the time that it takes you to get to school
D.the route that you take each day
Answer:
The correct answer would be - option C. the time that it takes you to get to the school.
Explanation:
The dependent variable is the factor or variable in any research or experiment is the variable that depends on the independent variable which means it changes with the change in the independent variable.
Here the time the different vehicle takes to get to the school is a dependent variable as it depends on the fact that which vehicle is using and changes with the change in the type of vehicle.
frank has type A blood (AA or AO) and margarita has type B (BB or BO) blood. They have a new baby. Vinnie, with type O blood. Is this possible or should frank accuse margarita of cheating?
Answer:
It is technically possible, if and only if, both parents have AO and BO blood.
Explanation:
the only way (most of the time) a child can get O blood is if both genes accepted by the parents are O. That would mean both parents would have to have O recessive genes.
Fill In The Blank
What is the strongest acid listed in 2-2?
What is the weakest acid listed in 2-2?
What is the strongest base listed in 2-2?
Answer:
Strongest acid is hydrochloric acid
Weakest acid is rainwater
Strongest base is sodium hydroxide
Explanation:
pH is defined as the measure of hydrogen ion concentration in a particular solution. pH values seen between 0 and 1 are actually known to be strongest acids. Weakest acids are the ones that move towards neutrality. The neutral pH value is 7.0.
Looking at their pH values, we will discover that hydrochloric acid is the strongest acid. Rainwater is weakest acid because it moves towards neutrality. Sodium hydroxide is the strongest base.
In pH, values between 0-6 are referred to being acidic, 7 is neutral and while 8-14 are basic.
Answer:b
Explanation:
Which plays a major role in determining which genes are expressed in a cell?
A. transcription factors
B.nothing, it is random
C.translating into spanish
D.your mother
Answer:
A.
Explanation:
A crucial component of controlling transcription is played by proteins known as transcription factors. These crucial proteins aid in identifying the genes that are active in each of your body's cells. Thus, option A is correct.
What is the role of transcription factors?Proteins called transcription factors control the expression of genes. They affect the transcription process, in which DNA serves as a template to create mRNA, which in turn affects protein synthesis.
Since many transcription factors are either tumor suppressors or oncogenes, cancer is linked to their mutations or abnormal regulation.
It is known that three transcription factor groups play crucial roles in human cancer.
Therefore, transcription factors play a major role in determining which genes are expressed in a cell.
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_trophs often make their own food using sunlight,
carbon dioxide, and water.
Any body please help please thank you so muchhhhh
Answer:
Autotrophs
Explanation:
Hope this is helpful
Which of the following move through convection currents? Select all that apply.
A. Air in the atmosphere
B. The mantle moving tectonic plates
C. Ocean currents
D. The water cycle
Water is a
compound. How do these images of water illustrate
this? Provide evidence to support the claim. Explain
your reasoning
Answer:
Is made up of different kinds of atoms chemically combined.
Explanation:
TRUE OR FALSE: Phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc. In fact, any phospholipid may be called a "cellular tourist" because it is able to move about to virtually any part of a cell and can even become a part of a cell in a different region of the body! (EXPLAIN WHY)
Answer:
False, because phospholipids are a type of lipids and the nuclear envelope contains nucleic acids.
Explanation:
Hope this helps.
It is true that phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc.
What is nuclear envelope made of?The nuclear envelope is made up of two concentric lipid bilayer membranes separated by a 20-40 nm intermembranous space.
In many places, the outer membrane is joined to the rough endoplasmic reticulum. The outer membrane of the nuclear envelope, like the rough ER, is dotted with ribosomes.
The nuclear envelope is made up of two membranes: an outer and an inner phospholipid bilayer. The lumen of the rough endoplasmic reticulum is connected to the thin space between the two layers (RER).
Nuclear pores, which are small channels that run across the nuclear envelope, allow substances to enter and exit the nucleus.
Each pore is lined by a group of proteins known as the nuclear pore complex, which regulates which molecules can enter and exit.
Thus, the given statement is true.
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3. In what part of Australia are koalas found? What do they eat?
Answer: Koalas can be found in Eastern Australia - Through much of Queensland (From the Atherton Tablelands west of Cairns moving South), NSW, Victoria and a small section of South Australia. And Koalas eat Eucalyptus leaves.
Explanation:
Plants experience_____
thigmotropism when they use a fence to help stabilize their stems.
A. positive
B. negative
what is a tetrad? snd why are they important feature of mitosis
Answer: a group or set of four
Explanation: tetrad occurs during the first phase of meiosis
Answer:
a group or set of four
Explanation:
How are the three international conflicts similar and how are they different?
Answer:
what's the question? It is not showing anything expect for "How are the three International conflicts similar and how are they different."
why are advantageous traits more likely to be passed onto offspring
Answer: Variations of traits causes those better suited to the environment to survive and reproduce. ... Why are advantageous traits more likely to be passed onto offspring? Because they are more likely to survive and reproduce.
Explanation:
Do you agree with this quote? Explain your reasoning using your understanding of the genetics of skin color.
Answer: No
Explanation:
There is no quote to see therefore I cannot agree.
How many amino acids will result from the following strand of DNA?
ACGCCCAA ATAC
A. 12 amino acids
B. 3 amino acids
C. 4 amino acids
Answer:
B, because the relationship between an mRNA codon and its corresponding amino acid is called the genetic code. The three-nucleotide code means that there is a total of 64 possible combinations (4 3, with four different nucleotides possible at each of the three different positions within the codon)
Explanation:
Hope this helps
Answer: b I think
Explanation:
6. What is the function of the vacuole in a cell?
A.)transports proteins to other locations in the cell
B.) breaks down food and releases energy
C.) stores water, waste products, and food
D.)manufactures proteins
Answer:
c, vacuoles are storage spaces
Answer:
[tex]vacuole \: in \: a \: cell \: stores \: water, \\ \: waste \: products ,\: and \: food.[/tex]
Help me ASAP please I’m being timed
Answer:
i think it is 4 but i am not sure
Explanation:
Answer:
From common sense I would select B. But I have not gotten to biology, so I do not know for sure. if I get it wrong, I am truly sorry.
Which of the following correctly identifies the function relationship of covalent bonds?
The diagram below shows fossils in three layers of rocks.
Which of these conclusions is most likely correct about the organisms found in the layers of rocks?
The organism in Layer A is more complex than the organism in Layer B.
The organism in Layer B is more complex than the organism in Layer C.
The organism in Layer C is a modern form of the organism in Layer B.
The organism in Layer A is a modern form of the organism in Layer B.
Answer:
The organism in Layer C is a modern form of the organism in Layer B.
Explanation:
Answer:c
Explanation:test
What id one watt equal to?
equation of gaseous exchange in plants
Answer:
See the answer below
Explanation:
Gaseous exchange in plants involves the entering of oxygen and the exit of carbon dioxide in its place. It is an important process that helps sustains the life of plants, just like every other living organism. The oxygen that enters is utilized in the process of respiration during which carbohydrates are broken down to unlock their energy for metabolic activities.
Oxygen usually diffuses-in through the stomata while the carbon dioxide diffuses in the opposite direction. The summary of the gaseous exchange is summarized in the equation below:
Glucose (food) + Oxygen ---------> Carbon dioxide + water + energy
Or better still;
[tex]C_6H_1_2O_6 + 6O_2 --> 6CO_2 + 6H_2O + ATP[/tex]
Adenosine triphosphate, or ATP, is primarily used as
in living organisms.
O A.
a blood coagulant
O B.
a source of energy
O C.
a reproductive enzyme
O D.
a muscle relaxing hormone
Answer:
A source of energy
Explanation:
Athletes train at high altitude, thereby increasing the number of red blood cells, to improve their
performance. How might an increase in the number of red blood cells improve an athletes
performance?
Answer:
Preparing at moderate height may improve ocean level execution in perseverance competitors. This was noted after the 1968 Olympics in Mexico City (7600 feet) when a few competitors found an improvement in their presentation after re-visitation of ocean level. Be that as it may, different competitors didn't see any distinction in execution. Studies have indicated improved high-impact power in sprinters who prepared at 6,000 feet for 10 days at that point performed at low elevation. Lower oxygen levels at elevation invigorate EPO prompting expanded red platelets or hematocrit. This viably permits more oxygen to be conveyed to the tissues. Basically, this is blood doping the regular way.
Late examinations do propose profits by 'preparing low' and 'dozing high'. This incorporates hypoxic tents that numerous competitors are presently utilizing. These tents have a generator that extricates oxygen from the air, establishing a moderate height climate. Competitors at that point rest/relax in them for a few hours per day. This invigorates erythropoietin, subsequently expanding the hematocrit (red platelet tally). Without a doubt the 'live high, train low' idea may permit the best blend. One examination separated 39 contenders into three preparing gatherings; living and preparing adrift level, living at height and preparing adrift level, living at elevation and preparing at height. The two gatherings who inhabited height had expanded red platelets and VO2max, however just the gathering who lived high and prepared adrift level had improved race times. One clarification for this is that the live high, train low gathering can prepare more diligently and better use their blood's oxygen conveying limit. As a result of expanded red cell creation, all competitors preparing as well as resting at elevation should ensure they have proper iron stores and nourishment. This is particularly valid for ladies, as they will in general have lower iron stores because of occasional loss of blood through monthly cycle.
Explanation:
look at the following images, then in your own words, describe how they are different.
Answer:
they have different locations of where the foods are located
Recessive traits appear only when an organism is
Answer:
If it carries two identical copies of the recessive trait.
Explanation:
Tidal energy is produced through the use of tidal energy generators. These large underwater turbines are placed in areas with high tidal movements, and are designed to capture the kinetic motion of the ebbing and surging of ocean tides in order to produce electricity.
Answer:
Alternative energy
Explanation:
Sedimentary rocks with ripple marks suggest that the rocks formed
A. someplace where wind crossed over wet sediment while it was forming.
B. when an ancient animal swam over them.
C. from shell fragments of ancient sea-dwelling animals.
D. when wet mud dried and shrank.
Answer: A
Explanation: Ripple marks are sedimentary structures and indicate agitation by water (current or waves) or wind.
pls pls pls help!! i’ll give brainliest
Answer:
materials move against a concentration gradient
1. Janica placed an ice cube in her thermos of hot coffee. Which of the following
describes the change to the energy in the system?
A. Energy was transferred from the coffee to the ice cube, but the total energy in the
system remained constant.
B. Energy was transferred from the ice cube to the coffee, but the total energy in the
system remained constant.
C. Energy was transferred from the ice cube to the coffee, and the total energy in the
system decreased.
D. Energy was transferred from the coffee to the ice cube, and the total energy in the
system increased.
Answer:
I think A
Explanation: