Answer:
There are two main types of chemical bonds that hold atoms together: covalent and ionic/electrovalent bonds. Atoms that share electrons in a chemical bond have covalent bonds. An oxygen molecule (O2) is a good example of a molecule with a covalent bond.
Explanation:
50 POINTS!! In the carbon cycle, all animals must consume other organisms because A. they can not absorb enough carbon from water. B. they cannot absorb carbon directly from the air. C. they are in competition with plants for available carbon. D. they require carbon to perform photosynthesis.
Answer:
C
Explanation: A fish can live in water and get carbon in the air bubbles but it's not enough carbon to thrive off of so the fish may need to eat other fish or plankton in the water. The second example A wolf would get its carbon from both the air and water but would still need extra carbons so that is why it would hunt a deer to consume its carbons. Also, the deer would get its carbons from the air, water, and grass. the grass would get its carbons from water and air. NOW DO YOU GET IT EVERYTHING IS CARBONS AND LIVES OFF OF THEM AND IT WILL ALWAYS BE THAT WAY!
In an effort to control vegetation overgrowth, 108 rabbits are released in an isolated area free of predators. After 2 years, it is estimated that the rabbit population has increased to 972. Assuming exponential population growth, what will the population be after another 9 months
Answer:
246
Explanation:
Increased amount / current population = 972
Amount released = 108
time(t) = 2years
Using the exponential growth function :
f(t) = A*g^t
Where g = growth rate
To obtain the growth rate = g
972 = 108 * g^2
g^2 = 972 / 108
g^2 = 9
g = 3
To determine population after 9 months :
9 months to years = (9/12) = 0.75
t = 0.75
f(0.75) = 108*(3^0.75)
f(0.75) = 108 * 2.2795070
f(0.75) = 246.18676
= 246
Why do dominant traits tend to be seen more frequently in a population? A. There are more dominant alleles. B. Organisms only need one copy of dominant to exhibit the trait. C. Recessive traits show up more in populations.
Answer:
I think is c hope this help
Answer:
[tex]\boxed{Option \ A}[/tex]
Explanation:
Dominant traits tend to be seen more frequently in a population because there are more dominant alleles. If it seems like in a community that the dominant traits show up more then this means that the dominant alleles are more.
Do plant cells always have cell walls
Answer: no they don’t they only have one
Explanation:
What is the SI unit for measuring weight?
Answer:
The SI unit for measuring weight is newtons
Explanation: The unit of measurement for weight is that of force, which in the International System of Units (SI) is the Newton. For example, an object witha mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, and about one-sixth as much on the Moon.
A rose bush is classified in domain _____ and kingdom _______.
Answer:
Domain: Eukarya
Kingdom: Plantae
Hope this helps
Which of the statements best describes the way you would engineer bacterial cells to produce a human protein?A. One restriction enzyme would be used to cut the donor human DNA and a different one would be used to cleave the vector DNA. B. One restriction enzyme would be used only to cleave the vector DNA. C. One restriction enzyme would be used only to cleave the donor human DNA. D. The same restriction enzyme would be used to cut both the donor human DNA and the vector DNA
Answer:
The correct answer is option D. The same restriction enzyme would be used to cut both the donor human DNA and the vector DNA.
Explanation:
The way one could engineer bacterial cells to produce a human protein is by allowing bacteria to taking up the recombinant DNA. This recombinant DNA are inserted in the form of the vectors.
Recombinant DNA technology or RDT allows individual fragments of DNA from any donor human genome to be inserted into vector DNA molecules with the help of the specific restriction enzyme for both vector DNA and donor DNA.
Thus, the correct answer is option D. The same restriction enzyme would be used to cut both the donor human DNA and the vector DNA.
The same restriction enzyme would be used to cut both the donor human
DNA and the vector DNA.
Restriction enzymes are also referred to as endonucleases and this involves
the cutting of a sequence at a particular end on the human and donor DNA
for various purposes such as modification etc.
The same restriction enzyme would be used to cut both the donor human
DNA and the vector DNA because it results in complementary sticky ends
being produced which is vital in DNA formation.
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I need an answer ASAP
What could make the heart rate of the daphnia increase or decrease
Answer:
The Temprature have the capacity to make the heart rate of the daphnia increase or decrease.Where should the biosphere label appear in this systems
model?
Answer:hydresphyr
Explanation:
Please answer.
Which applied force will cause a glass of water sitting on a countertop to move?
A. a balanced force
B. a frictional force
C. a gravitational force
D. An unbalanced force
Answer:
The correct answer is D. an unbalanced force.
Explanation:
If an unbalanced force were applied to the glass of water (for example, someone pushing the glass, lifting it up, etc.), this would cause it to move. However, a balanced force (if two people were to simultaneously pull the glass in opposite directions with the same amount of force) would not cause the glass to move. Gravitational force acts on all objects; the force due to gravity is already acting on the cup at rest and will not cause it to undergo motion. Friction is also already acting on the cup in the form of static friction, making it harder for someone to move the cup, so frictional force will not cause the cup to move either. Therefore, the correct answer is D. an unbalanced force.
Hope this helps!
How can society best use scientific research on climate change?
O A. To create environmental jobs
B. To gain global power
C. To make informed decisions
O
D. To block capitalist ventures
A woman who is a carrier for colour blindness (X-linked recessive) has children with a man who has normal colour vision. A. What are the genotypes of the man and woman? (2 marks) B. What percentage of their children do you expect to be colour blind? (1 mark) C. What proportion of their children will be carriers of the allele for colour blindness? (1 mark) D. Is it possible for the couple to have a girl who is colour blind? Why or why not? (2 marks)
Answer:
Explanation:
The Genotype of the woman is XCbXN
The man XNY
Since the allele for the color blindness is carried on one of the X -chromosomes of the carrier mother, then the male children will be color blind or carrier deopending on the defective gene they inherited. Since they will receive the defective or normal allele from the mothers,but the female will carriers or normal because they will inherit either defective allele or normal allele from the mother,but normal X allele from the father.
Assuming the colorbind gene was inherited by One of the boys, and the girls take the defective genes
1. XNY vs XCbXN.Then the one of the boys will be colorblind and the one of girls will be carriers. XNXCb, XNXN, XCbY,XNY 50 %
2.If the two boys take the effective genes from the mothers. and none of the girls take the defective alelle
Then the two boys will be colorblind and the girls will be carrries XcbY,XcbY and XNXN XNXN.(normal girls).
The proportions that will be the females since the girls can only take the defective allele from one of the normal and defective allele from the mother. Assuming the girls take the defective allele from the mothers and take normal from the father,they will all be carriers,since the X of the father is normal.
They can not have a color blind girl.Since the father is normal It takes two colorblind X-chromosome to give a girl.
_____ and glycogen
are both examples of polysaccharides.
A. Starches
B. Polymers
C. Monosaccharides
Granite is an igneous rock which is not easily___
by chemical or physical processes.
Help plzzzz
Answer:
Eroded.
Explanation:
Granite is pretty much impervious to natural weather.
(01.01 HC) Birds belong to different species but share similar characteristics. What inference can be correctly drawn about this statement?
Answer:
The correct answer would be - All birds share a common ancestor.
Explanation:
All birds shows similar characteristics and traits even though they belong to different species. According to the various studies and research it is found that the reason behind this similarity in traits and characteristics due to the common ancestor.
Studies states that the all modern birds share the common ancestor that was found during some time of Late Cretaceous and evolved from that common ancestor.
Thus, the correct answer is : All birds share a common ancestor.
Answer:
all birds share a common ancestor.
Explanation:
i just took the test and got it correct
Do enzymes change on their own? Why or why not?
Answer:
no because it can't not changed
Which statements describe characteristics of pseudoscience? Check all that apply. Pseudoscience is often based only on opinions. Pseudoscience is based on objective observations. Pseudoscience requires systematic experiments. Pseudoscience often involves explanations of beliefs. Pseudoscience includes subjective ideas. Pseudoscience is cyclical and changes based on new data. PLEASE ANSWER QUICK IM IN A MIDDLE OF A TEST!!
Answer:
1,4,5.
Explanation:
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will mark brainly please help
Answer:
The answer is
Explanation:
Coronal mass ejections match with energy released during nuclear fusion.
Solar wind match with includes prominences and solar flares.
Gamma ray photon match with a stream of plasma.
Hope this helps....
Have a nice day!!!!
Answer:
Coronal mass ejection: a stream of plasmaGamma ray photon: energy released during nuclear fusionSolar wind: includes prominences and solar flaresConvert the distance in 1,200,000,000 kilometers from earth to meters in scientific notation
Answer:
1.2*[tex]10^{12}[/tex]
Explanation:
1,200,000,000 km = 1,200,000,000,000 m
To convert the distance from km to m you have to multiply by 1000:
1,200,000,000 * 1000 = 1.2*[tex]10^{12}[/tex]
Why is it said that there are many species that have yet to be discovered?
Answer:
We have not explored everything
Explanation:
We haven't explored about 95% of the ocean, and haven't been able to explore more land due to different tribes that may alert danger or we've never seen before
How might you model the relationship between a tomato plant and the hornworm caterpillar?
Answer:
This model can be called a parasitic relationship
Explanation:
A parasitic relationship is a form of relationship/interaction between two organisms in which one organism (called parasite) lives at the expense of the other organism (called host); causing harm or death to the host.
A hornworm caterpillar feeds on the upper part of tomato plant leaves, causing harm to the plant in the process. Hence, the tomato plant is the host while the hornworm caterpillar is the parasite.
Why are the testes located in the scrotum rather than inside the ventral body cavity? _______________________________
Answer:
The correct answer is - to provide a slightly cooler temperature.
Explanation:
The scrotum is a sac pf skin and superficial fascia that contains testes present outside of abdomopelvic cavity or ventral body cavity, hanging provides a slightly cooler temperature f at roots of penis.
Testes produces sperm, for the sperms it require to be cooler temperature than the body cavity or optimal sperm production will be hampered. Scrotum gives 3 degree temperature less than the body cavity.
Thus, the correct answer is : to provide a slightly cooler temperature.
You want to determine if a new diet medication will help rats to lose weight. What is the dependent variable? * the rats weight loss diet medication the food
Answer:
the rats weight loss
Explanation:
The dependent variable would the weight of the rats.
The dependent variable is the variable whose value is dependent on another variable during an experiment. It is the actual variable set out to be measured or tested by researchers. The effect of the manipulation of the independent variable is measured on the dependent variable.
Hence, in an experiment aimed at determining whether a new diet medication will help rats to lose weight, the weight loss by the rats would be the dependent variable.
How many hydrogen atoms are found in two molecules of hydroxylamine, 2NH2OH? 2 3 4 6
Answer: 2 x 2 + 2 x 1 = 6
Answer:6
Explanation:
the asnwer is 6 simple just multiply but for better explanation those 2 molecules 3 x 2 =6 :)
A biology student wanted to determine if there is a relationship between resting heart rate and time spent exercising per week.
Answer:
YES, there is a relationship between resting heart rate and physical activity.
The higher the physical activity, the better the physical performance, the better the cardiac contractile quality, therefore the lower the heart rate at rest.
Explanation:
The heart is a muscle that is trained like the rest, when practicing physical activity it contracts and expels blood more often and more intensely.
Thus generating that the contractile power is more effective, that is to say that in each bombardment it ejects more blood into the aorta, therefore there will be less effort at rest.
This is how training generates hypertrophy of myocytes, they contract better, generate blood ejection to the vascular system in a more efficient contraction compared to sedentary, therefore the oxygenated volume will not have to be replaced immediately, thus generating the heart have to beat or eject more slowly.
By contracting fewer times per minute, we are faced with the phenomenon of decreased heart rate, this is measurable by taking the pulse of an athlete at rest and comparing it with a sedentary person also at rest.
Answer:
69 bpm
Explanation:
1.) There is an inverse trend seen in the graph. Students who do less exercise tend to have a higher resting heart rate, while students who do more exercise tend to have a lower resting heart rate.
2.) Using the line created by the data points, we can determine that students who exercise around 3 hours per week seem to have resting heart rates between 68-72 bpm.
3.) The correct answer is: 69 bpm
A threatened species is a species that is likely to become extinct if protective measures are not taken immediately.
True
False
Answer:
false
Explanation:
i guess that is an endangered species but a threatened species is one whose habitats or survival is in danger mostly due to human factors like poaching and encroachment I guess
Most of the chemosensory neurons arising in the nasal cavity have axonal projections that terminate in the
Answer:
The options are
A) gustatory complex
B) olfactory bulb
C) occipital lobe
D) posterior pituitary gland
The answer is B) olfactory bulb
Explanation:
The olfactory bulb is found in the forebrain and has a rich amount of neurons. It helps in the process of olfaction which means the sense of smell in organisms.
Most of the chemosensory neurons arising in the nasal cavity( nose) which is the organ used for smelling have axonal projections that terminate in the Olfactory bulbs.
I'm building a carbon atom. I've been told that the atomic number of carbon is 6, which means
that the carbon atom has protons.
Answer:
The carbon has 6 protons
Explanation:
The atomic number equals the quantity of protons and electrons in a neutral element.
Answer:
6 protons
Explanation:
The atomic number of an atom signifies the number of protons found in the the nucleus of the atom of a specific element.
It also represents the number of electrons, but only in an neutral or uncharged atom.
We are told the atomic number of carbon is 6. We also know that the atomic number is equal to the number of protons. Therefore, the carbon atoms has 6 protons.
state the difference between osmosis and active transport
Answer:
Osmosis is movement of water molecules from an area of their higher concentration to area of their lower concentration through a semipermeable membrane.
Active transport is movement of molecules from an area of their lower concentration to area of their higher concentration using energy in form of ATP by pump proteins.
Explanation:
transport system is consider as the opposite to osmosis. Because you are going against the gradient, active transport requires a pump or carrier protein in the cell membrane and therefore energy (made through respiration).
which food apple, steak, celery,olive oil,potato,avocado,egg contains macromolecule
Answer:
Meat and meat products (beef, chicken, lamb, pork or kangaroo)
Fish and seafood.
Eggs.
Dairy food such as milk and yogurt (also carbohydrate)
Beans and pulses (also carbohydrates)
Nuts (also fats)
Soy and tofu products.
Explanation: