Answer: the number of variables
Explanation:
The difference between small, controlled lab experiments versus an ecosystem-scale experiment is the number of variables.
What is an experiment?A technique used in science to create a discovery, test a hypothesis or prove a known fact.
Lab experiments are done in the lab with a limited amount of variables as there is limited space available.
The ecosystem-scale experiment is performed on large scale and with many variables.
Thus, the difference is the number of variables.
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People are encouraged to exercise after recovering from a heart attack.
Suggest one reason why.
Ans
It will speed up your ability to return to normal activities
Explanation:
What is the circulatory system?
Answer:
The heart and blood vessels
Explanation:
Answer:
the system that circulates blood and lymph through the body
Explanation:
FYI I searched it up.
Mitosis results in which of the following?
A. Two cells with different genes.
B. Two cells with identical genes.
C. Four cells with different genes.
D. Four cells with identical genes
Answer:
B
Explanation:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
What is the probability of flipping a coin twice and getting two heads?
a) 1
b) 1/2
c) 1/4
d) 3/4
Help
Answer:
c) 1/4
Explanation:
0.5 x 0.5
The probability of getting two heads on two coin tosses is 0.5 x 0.5 or 0.25. A visual representation of the toss of two coins. The Product Rule is evident from the visual representation of all possible outcomes of tossing two coins shown above
Active
Create a dichotomous key.
Magnifying Glass
Drag your question here.
Legs
Wings
Antennae
Stinger
Claws
Brown
Answer:
here hope this helps sorry its late but better late then never right anyways here have a good day if you have questions please let me know.
Explanation:
A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.
What is Dichotomous key?More details regarding the unique characteristics of a given organism are disclosed with each successive division. Once the organism no longer exhibits all of the chosen traits in concert with any other organism, it has been recognized.
In order to identify specimens with a dichotomous key, it is recommended to employ immutable traits (i.e. features that do not change). Size, coloration, and behavioral habits can all change across people and over the course of a lifetime.
Better traits are produced by physical features (like the number of limbs) and biological processes (like the mode of reproduction). Typically, dichotomous keys are displayed in one of two ways.
Therefore, A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.
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What is the probability of flipping a coin twice and getting two heads?
a) 1
b) 1/2
c) 1/4
d) 3/4
Answer:
3 , I'm a Harvard graduate
How much of the parent DNA molecule makes up one daughter DNA molecule ?
Answer:
Watson and Crick discovered that DNA has a double helix shape, consisting of two polynucleotide chains held together by bonds between complementary bases. DNA replication is semi-conservative: half of the parent DNA molecule is conserved in each of the two daughter DNA molecules.
Explanation:
I looked it up lol
A plant with the genotype ANL/anl, YGR/ygr, is bred with a plant with the genotype ANL/anl, ygr/ygr. About what percentage of the offspring plants will have both purple stems and yellow leaves? A. 50% B. 38% C. 25% D. 13%
Answer:
38%
Explanation:
Sorry im so late
1. What two reactants enter the mitochondrion?
2. Compare the reactions in mitochondria with glycolysis.
1. How does a cell obtain energy?
2. Under what conditions does fermentation occur in a cell?
3. If a cell could perform both cellular respiration and fermentation, which process would benefit the cell more?
Answer:
1.NADPH2 and FADH2 , and O2
Explanation:
NADPH2 and FADH2 get oxidized in the electro transport chain into NADP+ and FAD+ and water and oxygen and yield 3 ATP molecules and 2 ATP molecules per each molecule respectively
Following are the answers:
The two reactants that enter the mitochondrion are pyruvate, the end product of glycolysis, and oxygen.In the mitochondria, pyruvate and oxygen undergo a series of reactions called cellular respiration, which produces energy in the form of ATP. This process is more efficient than glycolysis, which only produces a small amount of ATP.A cell obtains energy through a variety of processes, including cellular respiration and fermentation.Fermentation occurs in a cell when there is a lack of oxygen, such as in anaerobic conditions.In general, cellular respiration is more efficient than fermentation in producing ATP, but fermentation is a useful process for cells to produce ATP when oxygen is not available.What is mitochondria?Mitochondria are organelles found in the cells of most eukaryotic organisms, including plants, animals, and fungi. They are often referred to as the "powerhouses" of the cell because they are responsible for producing the majority of the cell's supply of adenosine triphosphate (ATP), which is used as a source of chemical energy.
Mitochondria are membrane-bound structures that contain their own genetic material, separate from the cell's nucleus, and are responsible for their own replication. They have unique characteristics that allow them to produce energy through the process of cellular respiration, a series of reactions that convert the energy from food molecules, such as glucose, into ATP. This process is one of the most important biological processes in living organisms, as it allows cells to perform their functions and sustain life.
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Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss).
What is the probability that the offspring of two heterozygous parents will also be heterozygous?
Choose 1 answer:
(choice A)
A
(choice B)
B
[tex]\frac{1}{4}[/tex]
(choice C)
C
[tex]\frac{1}{2}[/tex]
(choice D)
D
[tex]\frac{3}{4}[/tex]
(choice E)
E
[tex]\frac{4}{4}[/tex]
Answer:
1/4 will have ss trait
Explanation:
other 2/4 will be carrier(Ss) and other 1/4 will have both dominant trait (SS)
Answer:
B. 1/2
Explanation:
The genotypes of the parents are Ss and Ss. We know this because Heterozygous basically means different alleles. The punnet square of this problem will show that the possible genes given to the offspring are SS (capital letters mean dominant. keep in mind that sickle-cell anemia is a recessive trait, meaning it is written in lowercase), Ss, Ss, or ss. So this means the offspring will have a 1/2 chance of becoming heterozygous (Ss).
What does Sexual reproduction involves ?
Answer:
it involves a sperm (male) entering an egg (female)
Explanation:
Students were involved in an experiment to investigate whether playing music while they
took a test affected their scores.
control
independent variable
dependent varibale
test scores students = playing music during a test
Answer:What excalty the question?
Explanation:
In a breed of dog, the gene for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur What is the most by explanation for the brown?
SC 912 L 16.1
The dog received a mutated gene
The dog only received one gene for fur color
The dog received two recessive genes for brown fur
The dog received one gene for brown fur and one gene for black fur
O
Answer:
the dog received 2 recessive genes for brown for
Explanation:
the only time a recessive trait will be shown physically is when the dog gets two recessive alleles
Answer: I believe its two recessive genes for brown fur
Explanation:
How is salinity affected?
(a) evaporation increases
(b) freezing increases
(c) melting increases
(d) precipitation increases
Answer:
Salinity of seawater is affected by evaporation, precipitation, ice formation, and ice melting. Evaporation increases the salinity of seawater because when seawater evaporates, the salts are left behind, thus increasing their concentration. ... Ice formation and melting behaves in a similar way.
Answer: evaporation increases
Explanation:
the first person meant evaporation increases
you have two bean burritos with the same ingredients. One burrito weighs 0.3 pounds, while the other weighs 0.5 pounds. After microwaving each of them for one minute, which burrito will be hotter? Explain your answer.
Answer:
the one that weighs less
Explanation:
the one that weighs less has less of the amount of ingredients in it which takes less long to cook and heats up faster
Answer:
0.3 pounds
Explanation:
I say that because since there is less weight on one of them, it doesn’t have to be cooked as long, or else it may get cooked TOO uh since it weighs less, while the other one may be cooked perfectly since there is more to cook.
Analyze the cell shown below. Which of the following accurately describes an
essential cell function being provided by the process shown?
A. Modification of protein
B.secretion of regulatory molecules
C.Synthesis of proteins
D.Digestion of food particles
A. Modification of proteins
Why do offsprings look different from there parents?
Living things produce offspring of the same species, but in many cases offspring are not identical with each other or with their parents. Plants and animals, including humans, resemble their parents in many features because information is passed from one generation to the next.
Blank muscles allow you to move parts of your body in different ways when
you want to
Answer:
Skeletal muscles I think
Explanation:
because i think so
Both matter and energy cycle through systems in nature. How are aerobic and anaerobic respiration part of one or both of these cycling systems?
How do cells obtain energy?
Answer:
Beginning with energy sources obtained from their environment in the form of sunlight and organic food molecules, eukaryotic cells make energy-rich molecules like ATP and NADH via energy pathways including photosynthesis, glycolysis, the citric acid cycle, and oxidative phosphorylation.
Cells have an organelle known as 'mitochondria' which has ATP molecules in it. These ATP molecules generates energy for the cell to function properly.
Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy.
This process is called 'cellular respiration'.
The process is happens in all the cells in our body.
Oxygen is used to oxidize food, main oxidized food is sugar(glucose).
2. A scientist who studies communities studies
a. Interactions between different populations in an ecosystem
b. Interactions between members of the same species in an ecosystem
c. The adaptations of an individual organism
d. Interactions between the living and nonliving factors in an environment
Answer:
b
Explanation:
WRITE TRUE IF CORRECT AND WRITE FALSE IF IS INCORRECT
1. Planting trees protects the soil from erosion and floods.
free 2. Sunlight refers to the degree of coldness and hotness of the atmosphere at a certain period of
3. Trees are very dependent on waters and serve as a solvent for the nutrients from the soil.
4. Soil contains mineral elements necessary for normal plants growth and development.
5. Trees easily die when they have grown to maturity because of extreme temperature changes.
6. There is more demand in buying bottled or canned fruits because such are more nutritious
than fresh fruits.
7. Planting trees reducestruction to homes and crops by serving as wind breakers during
typhoons and storms.
8. Inorganic fertilizers came from decayed fruits and vegetables peelings and manures.
9. In fruits tree productions select a variety of tree that is not found in your locality.
10. Sunlight is the main energy provider and influences the growth of trees through
cynthesis.
Answer: is it the same for all the questions?
Explanation:
Can blood cells replicate themselves?
Answer:
Blood cells cannot replicate themselves.
Explanation:
They do not replicate like other bodily cells because they cannot independently process and create proteins. Blood cells are instead formed in the bone marrow of bones. Depending on whether it is RBC or WBC, there are different types of bone marrow for producing that type of blood cell.
1. On average, how do the proportions of typical and mutant bacteria change in the population over time?
Answer:
bacteria
Explanation:
a sailboat moves faster as the wind blows on its sail. this is an example of acceleration, force, speed, velocity
Answer:
force
Explanation:
Gravity and buoyancy are the two key forces that operate on a stationary sailboat. The power of the wind pulls on the sail in order for the boat to move which allows the boat to move. The powers are now unbalanced, which is apparent from the acceleration of the ships.
The boat accelerates until the forward portion of the force from the sails is matched by the drag from the water.
What’s the key stages during expiration(breathing out) and during inspiration(breathing in)?
Which of the following describes a method of energy conservation?
O A. Driving a car with low fuel efficiency less often than before
O B. Switching to an appliance that has lower energy efficiency
O C. Driving a car with high fuel efficiency more often than before
XOD. Removing the insulation from a home before using the heater in winter
Which three organs are part of the digestive tract?
A) salivary glands, gall bladder, appendix
B)teeth, tongue, mouth
C)esophagus, stomach, small intestine
D)esophagus, liver, pancreas
Answer:
C
Explanation:
Due to the stomach and small intestine being part of the digestive tract and the esophagus allowing food, liquids and air to enter the torso
Esophagus, stomach, small intestine are part of the digestive tract. Therefore option C is correct.
The digestive tract, also known as the gastrointestinal tract, is responsible for the process of digestion in the human body. It consists of a series of organs that work together to break down food and absorb nutrients.
The three organs that are part of the digestive tract are the esophagus, stomach, and small intestine.
The esophagus is a muscular tube that connects the mouth to the stomach and helps in the transportation of food. The stomach is a sac-like organ that mixes and churns food with digestive enzymes and acids.
The small intestine is a long tube where the majority of digestion and absorption of nutrients occurs.
Therefore option C esophagus, stomach, small intestine is correct.
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Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss).
What is the probability that the offspring of two heterozygous parents will also be heterozygous?
Choose 1 answer:
(choice A)
A
[tex]\frac{0}{4}[/tex]
(choice B)
B
[tex]\frac{1}{4}[/tex]
(choice C)
C
[tex]\frac{1}{2}[/tex]
(choice D)
D
[tex]\frac{3}{4}[/tex]
(choice E)
E
[tex]\frac{4}{4}[/tex]
Answer:
D
Explanation:
It's D because past generations may not be heterozygous.
Describe 3 ways the land/terrain change as we move from Charlotte NC to the coastal plains of North Carolina
Answer:
Hilly towards flat.
Higher elevation toward lower elevation.
Clayey to sandy type of soil.
Explanation:
The land of Charlotte NC is hilly whereas coastal plains of North Carolina is flat. Charlotte NC is located at a high elevation while on the other hand, the coastal plains of North Carolina are located at the sea and at lower height. The soil type of Charlotte NC is clay and silt whereas the soil type of coastal plains of North Carolina is sandy due to the presence of sea.