Answer:
To know and compare the difference between the density of the fresh water and salt water or sea water require a graduated cylinder, balance, and weighing machine. The graduated cylinders are the containers that have markings on them to measure the volume of the liquid.
First, fill the cylinder with 1000 ml of fresh water which is the measure of the volume. now weight the cylinder filled with the fresh water and then find the difference between filled and empty container divide the mass of the fresh water by its volume, the result is the density of fresh water.
Repeat the process with salt water or sea water. The answer would be sea water has more density than fresh water.
3. Which is an example of genetic biodiversity?
a. Different skin color within a species
b. Different types of species in an ecosystem
C. Every organism has the same genetic sequence
d. All populations look identical within a species
Answer:
A
Explanation:
Has to be the same family to be genetic and you have to find which has the most variety
Different skin color within a species is an example of genetic biodiversity. Therefore, option (A) is correct.
What is genetic biodiversity?
Genetic biodiversity refers to the variety of genes and genetic traits that exist within a population or species. It is a fundamental aspect of biodiversity, as it underpins the ability of species to adapt to changing environmental conditions and to maintain resilience in the face of threats such as disease, climate change, and habitat loss.
Genetic biodiversity arises from mutations, genetic recombination, and other processes that generate new genetic variation within populations. This diversity provides the raw material for natural selection to act upon, allowing organisms with advantageous traits to survive and reproduce.
Genetic biodiversity is important for ecosystem functioning and for the conservation of species, as it helps to ensure that populations are able to adapt to changing conditions and maintain their long-term viability. The loss of genetic biodiversity can have significant negative impacts on populations and ecosystems, making it an important focus of conservation efforts.
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Which of the following represents the concept of RNA?
a) It consist of one strand.
b) It's sequence comes of the DNA strand.
c) Instead of Thymine, it uses Uracil as a nitrogenous bases.
d) All of the above.
Answer:
D is the answer please answer the
HELPPP!!! ASAPPPP!!!!
Which is NOT a characteristic of all vertebrates?
a well-developed brain protected by a skull
an exoskeleton
paired appendages
a backbone
1 which characteristic of life describes the life cycle of a butterfly?
A Crowing and developing
B. Using energy
CHaving cells
D. Responding to its environment
summarize the future use of dna technology here in 20 words or more
Answer:
DNA testing has gone mainstream. The cost of DNA sequencing has reduced faster than Moore's Law. With an estimated cost of $100 in the foreseeable future, DNA sequencing becomes more accessible and opens up new use cases, such as wider adoption of population sequencing
Explanation:
Many cities contain green areas, such as the park shown in the image below.
How do such roadless areas make a city more sustainable?
Answer:
Its A.
Explanation:
I just took the quiz trust me :D
Answer:
They provide high-density urban areas with space for outdoor recreation.
Explanation:
I just took the quiz.
Would a cell that did not undergo cytokinesis be able to function properly? Explain.
Answer:
If cytokinesis wouldn't really occur, the cytoplasm would not be broken and two similar daughter cells would not function as a result. Therefore a cell should not be divided into two separate cells to stay at rest.
Explanation:
Cytokinesis, which is the final step of mitosis, is split into two isolated, equivalent daughter-cells by the material.
which of the following is an example of positive feedback?
Answer:
uuh theres not an example please comment under this post to me the options
Explanation:
What makes each of the mechanical layers different?
A. Whether the layer is rock or metal
B. Whether the layer is solid, liquid, or in between
C. Whether the layer is dense or thick
Which description properly describes the plant structures involved in photosynthesis
Answer:
Stomata take in water, sunlight, and carbon dioxide and release oxygen. Phloem transports water, stomata take in carbon dioxide, and chlorophyll absorbs sunlight. Xylem takes in water, sunlight, and carbon dioxide and releases oxygen.
Answer:
Sorry, but I don'y know
Explanation:
what are infectious agents?
A. agent that investigates different types of infection
B. attackers that can cause a response by the immune system
C. attackers that cannot cause a response by the immune system
D. infectious agents are always good for the human immune system.
Describe a DNA molecule and its shape
Answer:
DNA is a long molecule, made up of two strands twisted together to make a spiral known as a double helix.
Shortly after ingesting a big plate of carbohydrate-rich pasta, you measure your blood's hormone levels. What results would you expect, compared to before the meal
Answer:
blood hormone level will increase
Explanation:
since once food reach the stomach it will trigger different hormone process that cause release of enzymes required to digest carbohydrate
After ingesting a plate of pasta, which is rich in carbohydrates, the levels of insulin increases and glucagon decreases in the blood.
The working of insulin and glucagon:The hormone insulin and glucagon work in a negative feedback loop. At the time of digestion, the foods, which comprise carbohydrates are transformed into glucose. The majority of this glucose is sent to the bloodstream, resulting the elevation of blood glucose levels.
This enhancement in the levels of glucose in the blood signals the pancreas to generate insulin, and reduce the levels of glucagon in the blood. After some hours, glucagon works to counterbalance the activities of insulin.
After five to six hours, the levels of glucose in the blood decreases due to the activity of insulin, this instigates the pancreas to generate glucagon.
Thus, after eating carbohydrate rich food, the levels of insulin increases in the blood and glucagon decreases.
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What happens as electrons move along the chain of molecules known as the electron transport chain?
Answer:
In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient. In chemiosmosis, the energy stored in the gradient is used to make ATP.
(Urgent please answer!!) What molecule holds the code for controlling what a cell does
I believe it's DNA, or deoxyribonucleic acid.
which levels of classification system are used in scientific name
Answer:
There are seven major levels of classification: Kingdom, Phylum, Class, Order, Family, Genus, and Species. The two main kingdoms we think about are plants and animals. ;)
Answer:
It is a two-name system using the category of genus and speices to precisely name an organisms. the genus and speices name is called an organism scfientic name.
explanation:
I NEED HELP WILL GIVE CROWN FOR TWO CORRECT ANSWERED QUESTIONS
Answer: 4. H
Explanation:
Which trait is controlled by three or more genes?
A:seed color in pea plants
B:feather color in roosters
C:fur color in palomino horses
D:hair color in humans
Answer: D:Hair color in humans
Explanation:
Rearrange the following information into a food chain. Label the role of each organism in the chain
• Water fleas eat algae
• Diving beetles eat young dragonflies
• Pike eat perch
• Perch eat diving beetles
• Young dragonflies eat water fleas
PLEASE HELP! Describe what you know about enzymes that explains your evidence and your claim.
Use the words: pH, substrate, product, active site, 3D shape, denature, and hydrogen bonds.
https://brainly.com/question/20699338 (link to other post w/ same question 18 point reward!!!)
Claim: The optimum pH environment for catalase is approximately pH 7.0 and thus has the highest activity in a neutral pH environment. If the solution is too acidic or too basic the catalase is inactive and no longer functions as an enzyme.
Answer:
In the case of catalase, the optimum pH is approximately pH 7.0. That is, catalase works best at a neutral pH. If the solution is too acidic (low pH value) or too basic (high pH value) the catalase is inactive and no longer functions as an enzyme.
hope this helps!!:)
Explanation:
what do you call humid air mass that forms over water in cold areas?
What regulates the flow of water through a cell membrane
Answer:
osmosis? I hope I'm right
Answer:
1. osmosis 2. tonicity 3. hydrostatic pressure.
Explanation:
Suppose scientists determine that a set of genes is significantly more prevalent in murderers than in the population at large. Would that mean that murderers are not at fault for what they do? Why or why not?
Answer:
No
Explanation:
That a gene is common to all murderers in the population does not mean that murderers are not at fault for their crimes.
Having a gene that correlates with murder just gives one a genetic tendency but the environment and personal choice still have to influence the decision to commit the crime. In other words, one might have the genetic tendency to commit murder but still has to be environmentally enabled and the ability to choose to either do it or otherwise. Nature, nurture, and personal choice would have to synergistically work together for the phenotypic expression of such a gene.
Animals respond to stimuli by performing behaviours.
Predict the relationship between memory and behaviour?
Answer:
Animals may respond to environmental stimuli through behaviors that include hibernation, migration, defense, and courtship. As a result of cold, winter weather (stimulus) some
hope this helps
34. What had to form before cells could form?
(1 Point)
sulfur molecules
organic compounds
plants
oxygen gas
Answer:
B. organic compounds I think if it's wrong then it might be A. sulfur molecules
Organic compounds, fc a cell couldn't form until organic molecules united with one another to form more complex molecules.
PLEASE ANSWER QUICK>>>>>Explain how enherited traits are determined
Answer:An inherited trait is one that is genetically determined. Inherited traits are passed from parent to offspring according to the rules of Mendelian genetics. Most traits are not strictly determined by genes, but rather are influenced by both genes and environment.
Explanation:
group the items according to the type of respiration they describe (picture included)
Answer:
Aerobic: Processes Oxygen, Carbon Dioxide by-product
Anaerobic: Processes Carbon Dioxide, Fermentation
Both: Produces ATP, Takes place in cells
Explanation:
Aerobic Process: Oxygen, Carbon Dioxide by-product
Anaerobic Process: Carbon Dioxide, Fermentation
Both: Produces ATP, Takes place in cells
What is respiration ?Respiration is a metabolic process in which an organism's living cells use oxygen to obtain energy (in the form of ATP) and release carbon dioxide as a byproduct of the oxidation of complex organic substances.
Anaerobic respiration occurs when there is no oxygen present, whereas aerobic respiration occurs when there is oxygen. Alcohol is produced by anaerobic respiration, whereas carbon dioxide and water are the byproducts of aerobic respiration. Compared to anaerobic respiration, aerobic respiration produces more energy.
Thus, respiration is a vital process of the body.
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what is the answer please let me know asap
Answer:
Explanation:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. pls mark brainliest plz plz
A chemist reacts 44.99 g of H2O and 211.51 g of CO2 as shown below.
H2O + CO2 --> C7H8 + O2
Part a) Calculate the maxium mass of C7H8 that can be produced.
Part b) Identify the limiting reactant.
Part c) Calculate the maximum mass of O2 that can be produced from this reaction.
Part d) When complete, the reaction actually produced 136.78 g of O2. Calculate the percent yield.
Select all answer choices that apply to questions a-d.
Note: calculated values are rounded to 2 decimal places.
Group of answer choices
150.46
197.73
179.76
CO2
57.51
76.09
63.26
H2O
Head injuries and spine injuries are very worrisome because:
A. Nerve cells go through cell division frequently
B. Skin cells go straight from First Growth to Synthesis phase
C. Skin cells go through cell division frequently
D. Nerve cells stay in G Zero phase after the first growth