Answer:
carbohydrates
Explanation:
Organic molecules composed of carbon, hydrogen, and oxygen in a ratio of 2-hydrogen atoms to every 1 oxygen atom.
Explain biological principles behind preservation of meat by refrigeration
Answer:
yes because at the room temperature the bacteria and fungi grow but in the refrigerator the temperature is lower than the room temperature which is not sufficient for growing microbes due to which we preserve in refrigerator.
I hope u understand
What factor(s) can affect diffusion speed?
None of the answer choices affect diffusion speed.
size of the diffused materials
shape of the diffused materials
size of the diffused materials and shape of the diffused materials
Answer:
C. Size of the diffused materials and shape of the diffused materials
The fact that many of the proteins produced by humans have identical or nearly identical counterparts in chimpanzees suggests
that
A)
all proteins are basically the same.
B)
humans and chimps share a common ancestor.
o
humans and chimps have convergently evolved.
D)
humans and chimps actually belong to the same species.
Answer: B)
humans and chimps share a common ancestor.
Explanation:
Which of the following DOES NOT cause a mutation?
Environmental factors such as radiation and chemicals
Infectious agents like viruses and bacteria
Spontaneous mutations
Pure water
in a food chain, why is it important for an organism to have different sources of food
Answer:
They need backups.
Explanation:
If the organism only has one food source they will use up that resource and eventually the organism will deplete due to lack of food.
Please help! Thanks in advance!
What 3 energy transformations occur after eating a spicy chicken sandwich?
Answer:
I wasn't even sure that happened, is spicy chicken bad for you?
Explanation:
Answer:
Physical, chemical, and heat.
Explanation:
Physical energy because of you chewing the food, chemical because of the enzyme's of your saliva, Heat energy because of your stomach acid churning it. :)
What is the relationship between mass and solar energy in plants?
Answer:
Plants increase in mass as they convert solar energy to chemical energy
describe in your own words the cycle of an ecosystem
Answer:
An ecosystem is where there are many organisms such as plants and animals also including weather and landscape. Ecosystems have biotic and abiotic things . Ecosystems can be very large or very small.
Explanation:
What can the location of a fossil in a rock layer tell scientists about the organism?
a. how long ago the organism lived.
b. that the organism is now extinct.
c. how many offspring the organism had
d. the exact age of the fossil
Answer:
I think that answer is A
Explanation:
how long ago did the organism lived
Can someone pls help me the answer options are
A 100 joules
B 10,000 joules
C 1,000 joules
D 10 joules
Answer:
I'm pretty sure it's A?
Explanation:
Multiplied by 1%
Adam writes the following hypothesis, "Grasshoppers prefer plants with higher levels of
sugar content" His hypothesis was not supported by his data but he wants to find out if
other insects prefer plants with higher levels of sugar in them. Why is his original
hypothesis still valuable?
A. It can lead to further investigations
B. It is clearly written
C. It involves the study of insects
D. It was disproven
Answer:
b
Explanation:
i got a hundred on it
Which of the following functions is controlled by the cell membrane?
a. excreting waste
b. producing energy
c. replicating DNA
d. assembling proteins
The process of union between egg and sperm.
oogenesis
mitosis
conception
implantation
in your own words, what is the definition for Plasmalemma?
Answer:
This is a plasmatic membrane (cell membrane) that bounds a cell.
Answer: a very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and controls the passage of substances into and out of the cell.
Explanation:
Based on the data in Table 1 and the biomass of the very large animals eaten by the lions, predict the likely effect on both the lions and leopards if the availability of the very large animals becomes limiting in the reserve. After analyzing the data, the scientists claim that the leopards and lions coexist in the reserve through the use of niche partitioning. Use evidence from the data provided to support the scientists’ claim.
Answer:
Explanation:
An ecological community can be described as all the different species of organisms i.e all the different plants and animals, living in a particular habitat at a specified time. An ecological community will consist of: Predators: Organisms which feed on other organisms.
Need help on this and happy Mother’s Day spread some love to your mom
Answer:
I don't remember the answer for the first one but for the others
2nd question : homogenous and Dominate
3rd question: heterozygous
4th question : homogenous and Recessive
Explanation:
I REALLY DO NEED HELP PLEASE!
Do not spam and do not send out links (those who do will get reported)
Part (a)
Enter the data into your calculator or a spreadsheet. Then perform an exponential regression to find the curve of best fit. This is the closest exponential function we can assign to each population, to measure it's approximate growth.
Let functions f, g and h represent group 1 through 3 in that exact order. You should get these approximate functions:
f(x) = 6830.52397(0.92755)^xg(x) = 3969.81548(1.00295)^xh(x) = 5.67328(1.42775)^xNote: Group 3 doesn't have its population start until 1995, which is 10 years after 1985. This means h(x) only works when [tex]x \ge 10[/tex] or it's meaningless otherwise.
Each function found is of the form y = a*b^x, where 'a' is the initial population (at time x = 0) and b helps determine the growth rate. We set b equal to 1+r and solve for r to get the growth rate.
For f(x), we have b = 0.92755 approximately. Set that equal to 1+r and solve for r
1+r = 0.92755
r = 0.92755-1
r = -0.07245
The negative growth rate indicates we have population decline. Specifically, the rate of decline is about 7.245%
Repeat those steps for the b value of g(x) and you should find that r = 0.00295 meaning we have roughly a 0.295% increase for Mussel group 2.
Group 3 has a growth rate of about 42.775% due to r = 0.42775 in this case. The steps will be the same as for group 1.
=========================================================
Part (b)
The graph is shown below as an image attachment. I used GeoGebra to make the graph, and to also find the exponential regression equations.
We have x as the number of years since 1985, which is the starting point, and y is the population size. Something like (0,4800) means in the year 1985, the population is 4800 mussels (see group 1).
Keep in mind that the green curve for h(x) doesn't make sense for positive x values smaller than 10, due to the fact that the third group wasn't introduced until 10 years after the starting point of 1985.
Also, be sure not to think that the blue g(x) curve is linear. It looks like a flat line, but it's really a very stretched out curve. This is because the growth rate is very small.
=========================================================
Part (c)
It appears that group 3 has caused group 1's population to decline, due to the red points (see part b) going downhill as we move from left to right. This drop-off occurs at around the time group 3 is introduced. Strangely, only group 1 is affected while group 2's population is still increasing. This increase is not much, but it's still a positive growth rate. So it's fairly likely that there are other confounding variables to consider, and it's not entirely group 3 that's causing the trouble.
=========================================================
Part (d)
There are many ways that people impact their environment, whether it's a positive or negative impact. When regarding this topic of marine life, specifically mussels, one way that humans affect the population is what was mentioned earlier: The fact that the third group of mussels was introduced to the habitat. Often, though not always, if you introduce a new species to some environment, then the species of animals already living there may have a hard time coping with the newcomer. The new species would be referred to as "an invasive species". The invasive species is more aggressive at getting food to crowd out the older species that isn't used to the newcomer. This may explain why Mussel group 1 experiences a decline after 1995 when group 3 is introduced. This decline is fairly significant as the graph in part (b) shows. Group 2 doesn't seem to be affected at all since it's growth rate is fairly flat yet steadily increasing even if done slowly. It's possible that group 2 is simply more adapted to deal with competition better than group 1.
Another way humans impact the environment is through pollution. Air pollution may contribute to acid rainfall that would lead to the ocean. There's also chemical pollution such as flushing harmful chemicals down the drain, which also leads to the ocean. This could apply to the average consumer, or to very big industrial companies. For instance, in the news recently in Florida, there was a very big worry that a holding pond could contribute to a spike in algae growth. While algae are beneficial, there are some species that invade more than their fair share of resources and kill off anything else more or less. This is one example where pollution contributes to harmful consequences to unfortunate species who likely die off. On top of pollution, there's general habitat loss that also may explain why group 1 is experiencing a sharp decline (however it wouldn't explain why groups 2 and 3 are growing).
need help asap
question 23
- 20 points
Answer:a
Explanation:
See here
Why is RNA necessary for protein synthesis?
Answer:
Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.
Explanation:
Antibacterial spray's are often use when cleaning kitchen countertops. If the same antibacterial spray is used continuously, why will some bacteria survive and reproduce?
Which of the following is true?
A. Renewable energy is over 90% of the energy
use in the United States.
B. There is NO renewable energy used in the
United States.
C. Renewable and fossil fuel energy use is about
equal.
D. Renewable energy use counts for less than
10% of the energy use in the United States.
Answer:
Renewable energy is over 90% of the energy use in the united states
What can be done to eliminate the dangers of antibiotic resistance that are all over the
world?
Answer:
There are many ways that drug-resistant infections can be prevented: immunization, safe food preparation, handwashing, and using antibiotics as directed and only when necessary. In addition, preventing infections also prevents the spread of resistant bacteria.
Explanation:
Which statement best describes the distribution of
resources around the earth?
Please help me :(
Answer:
Resource distribution refers to the geographic occurrence of resources on earth. In other words, where resources are located. Any particular place may be rich in the resources people desire and poor in others. As a result, resources are distributed unevenly across the globe.
Explanation:
brainliest pleahs
Sickle disease cell is a recessive genetic disorder. How many copies of the mutated gene (HbS allele) do you need to develop full blown sickle cell anemia?Please explain as well
If a bot gets first, Ill give the person who gives a correct answer 30 points and brainliest.
Answer:
It takes two copies of the mutant gene.
Explanation:
One from each parent, to give somebody the all-out sickness. Numerous individuals have only one duplicate, the other being typical.
Hope this helped and have a great afternoon!
~ChokieWokie~
How do cells read DNA, and how does DNA code for traits?
Which substance is NOT a known carcinogen?
a) latex
b) tobacco products
c) radiation
d) sunlight
Carcinogens are the agents that cause cancer in an organism and can be man-made or natural. Latex is not a type of carcinogen. Thus, option a is correct.
What are carcinogens?Carcinogens are the substances that can be a chemical or a biological compound that are capable of causing cancers. They can be natural agents like UV rays from sun, solar radiations, or viruses or can be a man-made substance like tobacco, nicotine, fumes.
These substances are capable of causing genetic mutations by altering the genomic sequence and the nitrogenous base that affects the genotype and the phenotype. The carcinogens leads to growth of abnormal and cancerous cells. Latex is a secondary metabolite that doe not causes cancer.
Therefore, option a. latex is not a carcinogenic agent.
Learn more about carcinogens here:
https://brainly.com/question/14051174
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Which property of water makes it helpful to use in car radiators?
Answer:
Specific heat capacity is the property of water that makes it useful in car radiators.
Explanation:
Water has a high specific heat capacity. So it is used as a coolant in car radiators and helps maintain temperature of car engines.
Why antibiotics are classified as drugs and useful drugs? Please helpp
Answer:
Antibiotics, also known as antibacterials, are medications that destroy or slow down the growth of bacteria. They include a range of powerful drugs and are used to treat diseases caused by bacteria. Antibiotics cannot treat viral infections, such as cold, flu, and most coughs.
Explanation:
what's Ozone layer???
Answer:
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
Explanation:
hope this helps you
Which of the following is not a type of adaptation? *
Specialized Adaptation
Biological Adaptation
Behavioral Adaptation
Structural Adaptation
Answer:
Specialized Adaptation
Explanation:
Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral.