Answer:
True becuase it makes two daughter cells with the same DNA so it must duplicate to creat a set for each
Why did the color of the peppered moth change?
The moths’ life cycle changed.
The environment changed.
The amount of variation in the moth population changed.
The number of individual moths in the population changed.
Answer:
The environment changed.
Explanation:
Hope this will help
Answer:
The environment changed.
Explanation:
I took the test and I got it correct
Ferns and moss plants grow from_________?
Answer:
mosses and ferns plants are two types of primitive plants both plants are non flowering plants
Explanation:
therefore both of them are seedless plant as well both moss and ferns under grow Alternatives of generations
PLEASE HELP, will mark brainlest, to who answers with the correct answer
What is some BIOLOGICAL EVENTS.
Answer:
A bioevent or bio-event (a shortening of 'biotic event' or 'biological event') is an event recognised in a sequence of sedimentary rocks, where there is a significant change in the biota as recorded by assemblages of fossils over a relatively short period of time.
Explanation:
1.According to Greek legend the war between the Greeks and the people of Troy was a long and bloody one. And at the center was Helen, the most beautiful woman in all of Greece. And Paris, the Trojan prince who loved her. PLZ HELP ME THIS IS A GRADE!!
The purpose of transcription and translation is to
a. copy DNA to prepare the cell for mitosis
b. make the proteins coded for in the DNA
c. create antibodies to protect the cell from pathogens
d. keep the cell busy
Answer:
make the proteins coded for in the DNAAnswer:
b. make the proteins coded for in the DNA
Explanation:
Transcription and translation take the information in DNA and use it to produce proteins.
Atomic energy is produced from changes within the_____
of an atom.
1. Protons
2. Neutrons
3. Orbitals
4. Nucleus
Answer:
I believe it is the Nucleus
Explanation:
Which biomolecules do not function in supporting a cell?
A Lipids
C Amino acids
B Nucleic acids
D Carbohydrates
The Earth's atmosphere is made up
of
A. all life on Earth including plants, animals, and
people
B. all the air that is in the sky; mostly nitrogen and
oxygen
C. all of the water on Earth including oceans, rivers,
lakes, streams, and ponds
Answer:
b
Explanation:
please help y'all 15 pts!
Answer:
C
Explanation:
Because you see a fish and some leaves, you can conclude that the ocean went away and the trees grew.
Which physical structures are present in amphibians, but not in reptiles, when they first hatch?
scales and fins
scales and lungs
gills and fins
thin skin and lungs
Answer:
gills and fins
Explanation:
True or False: A karyotype is a map or
picture of all your chromosomes.
Answer:
true i believe
Explanation:
What is the difference between a substrate and an active site?
Answer:
a reactant in a chemical reaction is called a substrate when acted upon by enzyme. an active site is the part of an enzyme to which substrates bind and where a reaction is catalyzed. :)
If a person is breathing normally, which of the following could prevent him from using his body to exercise normally?
not eating enough food, because cells need molecules from both food and air to work
nothing, because he would be able to exercise normally as long as his cells are getting molecules from the air
not getting enough sleep, because the body only makes energy for exercise while asleep
not getting enough sunlight, because cells need sunlight to function
Answer:
Not eating enough food, because cells need molecules from both food and air to work.
Four substances are important for both photosynthesis and cellular respiration: oxygen, glucose, carbon dioxide, and water. What is the best explanation for how both processes use these substances?
Answer: D
Explanation:
Answer:
D
Explanation:
i took the test
15.
An object with a mass of 20.0 kg has a force of 5.0 newtons applied to it.
What is the resulting acceleration of the object?
Answer:
0.25m/s2
Explanation:
Force = mass x acceleration
5 = 20 x a
a = 5 ÷ 20
= 0.25m/s2
1
The number of germs on your hands is comparable to the
number of:
Answer: Grains of sand on a beach
Explanation: Good luck! :D
Write a paragraph explaining how energy flows through an ecosystem.
Be sure to use the following terms:
Energy Pyramid Sun
Trophic Level Producer,
Primary Consumer Decomposer
Secondary Consumer Tertiary Consumer.
Answer:
The living organisms of an ecosystem are related through food chains, which gives rise to trophic levels in an ecosystem. There is a flow of energy from one trophic level to the other in a food chain. Producers bring energy from the sun into the community. Primary consumers eat the producers, which makes them herbivores in most communities. Secondary consumers eat the primary consumers, which makes them carnivores. Tertiary consumers eat the secondary consumers. A final link in the food chain are decomposers, which break down the organic matter of the tertiary consumers (or whichever consumer is at the top of the chain) and release nutrients into the soil. Thus, there is flow of energy from Sun ------> Producer ------> Herbivore -------> Carnivore ------> Decomposers.
How energy flows through an ecosystem is summarized below.
Energy flows through an ecosystem in the following order:
Sun ----> Producer ---> Primary consumer ---> Secondary consumer ---> Tertiary consumer ---> Decomposer.
Some of the energy from the sun is fixed by the producer through a process known as photosynthesis. The producers are usually green plants and photosynthetic bacteria.Primary consumers feed directly on the producers.Secondary consumers feed on the primary consumers.Tertiary consumers feed on the secondary consumers.The decomposers feed on the remains of the tertiary consumers.As the energy flows from producer to the different consumers, and to the decomposer, only about 10% of the energy available in each trophic level move to the next with the rest being lost to heat.
Hence, an energy pyramid is created as we move from the lower trophic level to higher trophic levels.
More on energy flow in an ecosystem can be found here: https://brainly.com/question/4467320
Need help with this question!
Answer:
i think is the second one
True or false?
Submersibles make it possible for scientists to collect data from areas of the ocean that were previously unreachable.
Answer:
The answer is true :)
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Much love <3
Explanation:
A student combined baking soda and vinegar. Is this an example of a chemical reaction? Use evidence and scientific reasoning to support your claim.
Answer:
It is not a chemical reaction, because you can still separate it, meaning it is a physical change. Also it did not make a new substance, burn, or rot also making a physical change.
Explanation:
Sorry if wrong
Is Salmonella maintaining? Why or why not? Plz help
Answer and explanation:
No, because most people are infected with salmonella by eating foods that have been contaminated by the s-word. Since our society is much more industrialized, we are cleaner when it comes to making food. Salmonella is mostly found in dirtier countries such as third world countries. Obviously, other food-borne illnesses are out there, but salmonella is not as common anymore, since we are improving.
Winds are generated by changes in air pressure and temperatures locally.
A. True
B. False
Answer:
A
Explanation:
Wind pressures change the directions and generate new winds. The Sun can also affect this in a way
NEED HELP ASAP 15 POINTS
what does it mean, Genotypically and Phenotypically, to be a worrier or warrior
Answer:
genotypically The genetic makeup, as distinguished from the physical appearance, of an organism or a group of organisms. 2. The combination of alleles located on homologous chromosomes that determines a specific characteristic or trait.
phenotypically The physical appearance of an organism as distinguished from its genetic makeup. The phenotype of an organism depends on which genes are dominant and on the interaction between genes and environment.Explanation:
help quick pleaseeeeeeeee
Which statement best describes the result of meiosis?
A.
It produces body cells.
B.
It causes alleles to deform.
C.
It prevents genetic mutation.
D.
It produces reproductive cells.
Answer:
It's D
Explanation:
PLS ANSWER WILL GIVE BRAINLIEST
Choose the correct statements 1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. 2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species. 3cross-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. 4.Self-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
Answer: The correct statements are 1 and 2:
1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.
2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
Explanation:
Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.
There are two types of pollination
--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.
--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.
does cigarette smokingincrease the risk of lung cancer
Answer:
Cigarette smoking is the number one risk factor for lung cancer. In the United States, cigarette smoking is linked to about 80% to 90% of lung cancer deaths.
Explanation:
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Explain how vaccination protects a child against a viral disease.
Answer:
Explanation:
It doesn’t is actually makes u sick sometimes but if u agree then vaccinations mean when only a bit of the pathogen is ingested into to u for ur body to become immune and so if u get the disease yours body has already made antibodies which contain a special format in which they break down the pathogen faster.and the pathogen will be broken down quickly as the process is faster when your body already contains the code against it.
Q.18. During which period did the first trilobites appear?
a) Cambrian
b) Devonian
c) Silurian
d) Ordovician
Answer:
a) cambrian
Explanation:
The first body fossils of trilobites appeared in the Early Cambrian Period, about 540 million years ago.
Answer:
A. Cambrian period
Hope this helps :)
What is the difference between apparent magnitude and absolute
brightness?
Answer:
Astronomers define star brightness in terms of apparent magnitude. - how bright the star appears from Earth - and absolute magnitude - how a bright the star appears at a standard distance of 32.6 light-years or 10 parsecs.
Explanation:
I majored in Biology