Answer:
The answer is "dead leaf."
Explanation:
Although dead leaves are no longer alive, they were considered as once part of a living entity. Therefore, dead leaves are biotic factors. Wind, iron gates, and sunlight are not biotic components because they are the non-living parts of the environment that influence biotic factors. Hope this helps.
Biotic factors include plants, animals, fungi, algae, and bacteria.
its not wind that would be Abiotic
and its not sunlight thats also abiotic
an iron thing is not a living thing either so thats not the awnser so Its D. dead leaf because even though its dead its the closest thing to a biotic
PLEASE HELP ASAPPP !
box one choices:
•a compound
•a mixture
•an element
box two choices
•alike
•bonded chemically
•mixed together
Answer:
Box one: A compound
Box two: bonded chemically
Explanation:
it's a molecule, which is a collection of atoms bonded together chemically through their electrons.
hope that helps!
What is the precipitate in the following reaction?
BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)
O A. Na2SO4
O B. Baso
O
c. BaCl2
O D. Naci
Answer:
Precipitates of BaSO4 will be formed.
Explanation:
Most of the sulphates are soluble but barium sulphate is not soluble, it forms precipitates in the mixture. This reaction is of much industrial importance for production of barium sulphate and is used in paints too.
the deepest ocean trenches have high salt concentrations that can reach upwards of
Answer: 10 tons per square centimeter
Explanation:
The chemicals released in a synapse when a signal passes through are _________. The chemicals released in a synapse when a signal passes through are _________.
Answer:
Neurotransmitters
Explanation:
Examples of neurotransmitter are acetylcholine, epinephrine, dopamine, GABA, serotonin, and etcetera. They are released from synaptic vesicles in the presynaptic membrane. They then diffuse through the synaptic cleft or neuromuscular junctions and bind to their receptors on the postsynaptic membrane and invoke an impulse.
What does this graph tell you about the relationship between temperature and the amount of water vapor that air can hold?
Answer:
As the temperature increases so does the amount of moisture that the air can hold.
Explanation:
The graph shows that at 0 degrees C air can hold about 5 g/m cubed while at 20 it can hold 19 g/m cubed meaning that the amount of moisture increases as temperature increases.
Answer:
heat and cold going up
Explanation:
which kinds of organisms use photosynthesis?
Answer:
Plants and Algae
Explanation:
Plants and Algae are organisms that typically use photosynthesis.
Organisms mad of only single cell are called
A . Multicellular
B. Eukaryotic
C. Unicellular
D. Heterotrophs
Answer:
C. Unicellular
Explanation:
Organisms mad of only single cell are called Unicellular.
Uni means 1.
Just like a Unicycle has 1 wheel.
Which bost describes meiosis?
It produces cells that are identical to the original cell.
It is responsible for the replacement of damaged skin cells.
It is responsible for growth of the organism.
It produces male and female sex cells.
Answer:
It produces male and female sex cells
Explanation:
17. What's mass?
A. A measure of an element's attraction for electrons
B. The force that gravity exerts upon an object
C. The sum of the number of protons and neutrons in an atom
D. A measure of the amount of matter an object contains
Answer:
The force that gravity exerts upon an object.
Echolocation is an adaptation bats use to _______. a. hunt insects in flight b. locate flowering plants c. find warm places for hibernation d. all of the above Please select the best answer from the choices provided A B C D
Answer:
d. all of the above
Explanation:
The bats are the only mammals that have managed to perfect flight. They have managed to develop wings, but have started to have a nocturnal life, so in order to be more effective, they have developed their senses like the smell and hearing better, and also developed something new, echolocation. Because the eyesight was not really needed, the bats became almost blind, having very bad eyesight. The echolocation replaced their eyesight though, and it has proven as a very effective adaptation. It is an adaptation that manages to locate objects, food source, be it insects or flowering plants, as well as caves for shelter from predators and cold weather.
This type of mutation occurs when one or more base pairs are added to the gene sequence. PLEASEEEEE HELPPPPP MEEEE!!!!
Answer:
Insertion
Explanation:
Mutation is a phenomenon in which the nucleotide sequence of a gene in DNA is changed into a new sequence due to insertion, deletion or exchange of a gene segment.
Insertion is a type of mutation in which one or more than pne base sequence in added into the DNA of an organism. This insertion may or may not be dangerous depending on the place of insertion and how it is causing adverse effects on the protein product of the gene.
Here is an example of insertion mutation:
Base sequence: AUG GCC TGC
Product: met ala gln
Insertion:
Base sequence: AUG GCC C TG C
Product: met ala Leu
So we can see that the product protein is changed because of insertion.
Hope it helps!
Answer:
insertion
Explanation:
i got it right
The circulatory system transports substances such as glucose and oxygen around the body.
(a) Name two other substances that the circulatory system transports around the body.
Answer: blood
Hormones
Amino acids
Electrolytes
Explanation:
The two other components which are transported by a circulatory system are blood and Hormones and Amino acids.
What is circulatory system?Blood arteries in the circulatory system move blood away from and toward the heart. Blood leaves the heart through arteries and returns through veins.
Cells receive oxygen, nutrients, and hormones from the circulatory system, which also removes wastes like carbon dioxide. To keep things moving in the right direction, these roads only go in one direction.
The blood picks up oxygen and releases carbon dioxide at the lungs. The pulmonary veins are then used to transport the blood back to the heart.
Therefore, The two other components which are transported by a circulatory system are blood and Hormones and Amino acids.
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Describe the difference between the messenger RNA transcript produce by rna polymerase in the nucleus and the mRNA transcript that binds to the ribosomal subunits in the endolplasimic reticulum.
Answer:
The mRNA transcript that is produced in the nucleus is in immature form, it had to get matured, and then its capping and tailing is done. 5' cap is added and a poly A tail is added at 3' end of this mRNA. This helps it to get matured. moreover for its maturation the non-coding regions (introns) are removed and exons are packed up again to form a mature mRNA.
This mature mRNA then proceeds to its way to the ribosomes for translation of proteins.
The pre-mRNA transcript is synthesized in the nucleus and undergoes processing including splicing, capping, and polyadenylation to become mature mRNA. This mature mRNA then exits the nucleus and binds to ribosomal subunits in the endoplasmic reticulum for protein synthesis.
The difference between the messenger RNA (mRNA) transcript produced by RNA polymerase in the nucleus and the mRNA transcript that binds to ribosomal subunits in the endoplasmic reticulum involves several key processing steps. The initial RNA transcript synthesized by RNA polymerase II is known as pre-mRNA.
This pre-mRNA undergoes several processing events before becoming a mature mRNA that can be translated into protein. The processing includes splicing to remove introns (non-coding regions), addition of a 5' cap, and polyadenylation, adding a poly(A) tail at the 3' end. These modifications are crucial for mRNA stability, nuclear export, and translation efficiency. Once processed, the mature mRNA exits the nucleus and can associate with ribosomes on the endoplasmic reticulum, forming the protein synthesis complex.
What are the three general properties of stem cells? Check all that apply.
They are capable of dividing and renewing for long periods of time
They are unspecialized cells.
They remain unspecialized cells.
They can give rise to specialized cells.
Answer:
They are capable of dividing and renewing for long periods of time.
They are unspecialized cells.
They can give rise to specialized cells.
Explanation:
What was the purpose of miller and urey's experiment?
a. to find out of prokaryotes evolved from eukaryotes
b. to determine whether prokaryotes have cell membranes
c. to measure the number biological molecules on earth
d. to see if simple molecules can combine spontaneously
Answer:
d. to see if simple molecules can combine spontaneously
TRUST ME!
Explanation:
I just did it and got it correct your choice but you should trust me.
Answer:
D. To see if simple molecules can combine spontaneously on early Earth.
Explanation:
A.P.E.X.
PLS HELP
Can you put these cats in the right order (from Largest to Smallest) according to their actual real-life size?
Answers:
A: DCAB
B: BADC
C: CBAD
D: ADCB
Answer:
A: DCAB
Explanation:
There are lot of different types of domestic cats nowadays, with the variations coming mostly from mutations and selective breeding. Some cats are very small, some pretty large, some have long fur, some don't have fur (or rather seem like they don't) etc. The Siberian cat weighs 8-17 pounds, British shorthair 7-12 pounds, Turkish van 7-20 pounds, ragdoll 8-20 pounds, with the females being smaller than the males.
which species will most likely survive if earth temperature increase?
Species A: Thick fur with long hair, small ears
Species B: Fur with short hair, large ears protruding out
A. Species A because fur would provide insulation
B. Species B because fur would provide insulation
C. Species A because small flapping ears would provide cooling
D. Species B because large flapping ears would provide cooling
Species B, with its fur with short hair and large ears, is more likely to survive if Earth's temperature increases because large ears facilitate cooling by dissipating body heat into the air, which is crucial in warmer climates (option D).
Species A is characterized by thick fur with long hair and small ears, while Species B has fur with short hair and large ears protruding out. It's important to understand how animals adapt to their environment, particularly through features that allow them to conserve or dissipate heat.
Animals with features such as thick fur and blubber are often found in colder climates because these features provide insulation and help to retain body heat. For example, polar bears and arctic foxes use their thick fur and tails to keep warm in subfreezing environments. Conversely, animals like the jackrabbit with long, tall ears dissipate heat through their ears to help cool off in warmer climates.
When Earth's temperature increases, animals with adaptations that help them dissipate heat are more likely to thrive. Therefore, the correct answer is D. Species B because large flapping ears would provide cooling. Species B's larger ears allow for more heat to be dissipated, which is an advantageous trait in a warmer climate, while thick fur would be detrimental in such conditions.
Species B, with short hair and large ears, would be more likely to survive in warmer climates as large ears help in heat dissipation. Thick fur and small ears, as in Species A, are more adapted to cold climates and conserve heat.
Adaptations to Increased Earth Temperature
Considering the adaptations required for surviving in an environment with increased temperatures, Species B, with fur with short hair and large ears protruding out, is more likely to survive. This is because large ears facilitate the dissipation of body heat, which is crucial in warmer climates. Species like the jackrabbit use their long ears containing dilating blood vessels to release body heat into the air. Conversely, species with thick fur and small ears, like Species A, have adaptations suitable for conserving heat in colder environments.
Furthermore, Allen's rule highlights the trend that animals in warm climates tend to have longer limbs and ears for better heat dissipation. Species B aligns with this rule, having features like large ears that would provide cooling, making it better suited for survival if Earth's temperature increases.
Two scientists do not agree on which type of grocery bag is better for the environment
Answer:
The outcome would be one bag over the other because they would use science to disprove the others argument.
Explanation:
Ok... is this what modern science has come to?
Answer:
Option D Gather more evidence before reaching the conclusion
Explanation:
Several factors might influence the scientists to disagree. For example, one of the reasons could be the safety of the bags. The first one might argue that plastic bags pollute the environment. The second one might argue that plastic bags are not harmful at all.
The other scientists may argue that plastic bags are non-biodegradable and therefore pollute the environment and cause many problems. The other one may argue that plastic bags are now biodegradable. So, the best way is to gather evidence before establishing the correct point.
Which of the following is the BEST definition for drug-resistant pathogens? Select one: a. Pathogens for which scientists have not yet developed antibiotics. b. Pathogens that have evolved a resistance to existing antibiotics. c. Pathogens that can not be affected by antibiotics.
Hi !
CORRECT ANSWER = B
DRUG-RESISTANT PATHOGENS ►
B- Pathogens that have evolved a resistance to existing antibiotics
-
☺☺☺
b. Pathogens that have evolved a resistance to existing antibiotics.
What are Pathogens?A pathogen is an organism causing the disease to its host, with the severity of the disease symptoms referred to as virulence. Pathogens are taxonomically broadly diverse and comprise viruses and bacteria in addition to unicellular and multicellular eukaryotes.
Different types of pathogens are-
Bacteria, viruses, and fungiLearn more about Pathogens here
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what does it mean that a hypothesis must be falsifiable in order to be valid
Answer:
It means that a hypothesis must be able to be rejected by the experiment proposed.
Explanation:
In science, a hypothesis can either be supported or refuted after conducting an experiment. No hypothesis will be valid unless there is a possiblility for it to be refuted by the experiment.
Answer:
It means that a hypothesis could only be considered true or false, not from its verifiability, but from its falsifiability
Explanation:
The scientific observation is always oriented previously by a hypothesis to be proven, that is, the science that is based on the inductive method selects the phenomena that will be investigated for the proof of something that is already supposed. For this reason, the verifiability criterion will not always be valid.
Hypotheses that offer no possibility of being refuted through experience should be considered as myths, not as science. To say that a scientific hypothesis must be falsifiable empirically means to say that a scientific theory must offer the possibility of refutation - and, if refuted, should not be considered.
Why is the oxygen atom of one water molecule attracted to the hydrogen
atom of another water molecule?
The total amount of water a tank can hold is 145 gallons. Raul wants to find out how many 14-gallon buckets of water can be
used to fill the tank Which expressions could be used to represent this scenario? Check all that apply
Answer:
11
Explanation:
the answer is 11 because 14 times 10 is 140, and theres 14 gallons in a bucket, so there's still 5 gallons remaining. the 11th one is used for the remaining 5 gallons.
Answer:
A and C
Explanation:
Which of the following is an example of an adaptation?
A dog sits when it hears a a command because it’s owner rewards it with food
B. The coloring of a monarch butterfly alerts predators to the fact that the butterfly is poisonous.
C. Birds that live near a highway learn not to fly away every time a car passes
D. Pigeons make their nests near an outdoor restaurant, where food is always available.
Answer:
B
Explanation:
The butterfly formed those adaptions so predators are less likely to eat it
This food web represents a community in a rain forest.
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig -
fungus
fruit bat
If people took most of the boa constrictors from this community, which
changes would be likely to occur? Select the three correct answers.
Answer:
coatis would increase
sloths would increase
fruit bats would increase
Explanation:
The boa constrictor in this food chain is the top predator, thus it is on the top of the food chain. It preys on several of the animals on this list, such as the coati, sloth, and fruit bats, so it is regulating their numbers. If the boa constrictor is removed from the ecosystem, the ecosystem will lose its predator, so the animals on which the boa constrictor preyed upon will have no threat, thus will experience rapid increase in their numbers. The coatis, sloths, and fruit bats, all will be predator free in this scenario, so they will all experience increase in their population, which in turn will have big effect on all other species in the ecosystem.
What is gene flow?
O
A. A method of artificial selection
O
B. A random change in allele frequencies
O
C. When the population drops suddenly, then grows
D. The transfer of genes from one gene pool to another
It is the transfer of genes from one gene pool to another.
how do yeast cells benefit from fermentation
Answer:
When yeast cells are used in making bread rise, they get energy from the sugar mixed within the bread dough. When oxygen is present, these single celled fungi perform cellular respiration. When there is no oxygen they perform fermentation. By performing fermentation they produce carbon dioxide gas (which causes the bread to rise) and energy storing molecules called ATP. By fermentation they produce more and more ATP. More and more energy.
Explanation:
Consider this animal cell.
can you take a picture of it
Answer: pictures??
Explanation:
10. Secondary succession occurs in an area where the community has been
destroyed and the soil has been
A compressed
B destroyed
C preserved
Dremoved
Secondary succession occurs in an area where the community has been destroyed and the soil has been preserved. Thus, the correct option is C.
What is Succession?Succession may be defined as the gradual and continuous replacement of one community by another community over time.
Secondary succession initiates from a site where life existed before. It includes some activities like a forest fire. The rate of secondary succession is faster than that of primary succession.
Therefore, Secondary succession occurs in an area where the community has been destroyed and the soil has been preserved. Thus, the correct option is C.
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About how much moisture can air hold at 20°?
Answer:
At 20 degrees Celsius air can hold about 20g/m cubed.
Explanation:
Looking at the graph you see that when air temp is 20 water vapor is about 20 because that is the point on the graph.
Pleaseeeeeeeeeeee help ......
Answer:
The population will start dying off.
Explanation:
As the individuals compete for a fixed amount of resources, the juveniles and diseased and weaker individuals will lose the competition
The process will start happening around Year 3, but it will become a life-and-death battle for survival in Year 5.
The poputation will stabilize at 14 600 individuals.