Answer:
3 letters
Explanation:
The "letters" of the alphabet are grouped into "words" of three letters each. On the mRNA molecule each "word" of three letters is called a codon. a single codon specifies, or "codes for", a single amino acid.
Please help
List the three domains of life and provide an example of an organism for each.
Answer:
Explanation:
All life can be classified into three domains: Bacteria, Archaea, and Eukarya
Organisms in the domain Eukarya keep their genetic material in a nucleus and include the plants, animals, fungi, and protists.
Where are coastlines located ?
Answer:
at the confluence between the sea and the land at the time of the highest tide
sorry if this answer wrong:(
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 :)
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
LOOK AT ATTACHED PHOTO FOR QUESTION! WILL GIVE BRAINLIEST.
Please correct me if I am wrong for the third one
Answer:
1. Hypotonic
2.Isotonic
3.Hypertonic
Explanation:
Number 1 is hypo tonic because solute is going into the cell. The cell is getting bigger and expanding. You can think of Hypotonic as getting bigger by using Hypo which can be Hippo. Hippos grow bigger over time.
Number 2 is Isotonic. The water is going in and out at the same rate. Therefore, nothing really changes here.
Number 3 is Hypertonic because the cell has shrunk.
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:
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who adapts, the population or individual
Answer:
to be honest i think the answer is the population
Explanation:
Answer:
Populations evolve through a process known as natural selection which allows individuals with beneficial traits for survival to breeding with other individuals who share those traits, eventually leading to offspring who only exhibit those superior traits.
Explanation:
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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.
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
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.
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.
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:
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.
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:
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
Please answer the question
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
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Need help with this question!
Answer:
i think is the second one
Which biomolecules do not function in supporting a cell?
A Lipids
C Amino acids
B Nucleic acids
D Carbohydrates
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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Explanation:
What is the era of the multicellular algae
Answer:
its the phanerozoic era
an organism uses the energy from food to travel across the forest. This is an example of conversion from _____.
a) chemical energy to kinetic energy
b) kinetic energy to potential energy
c) kinetic energy to chemical energy
d) thermal energy to chemical energy
Answer:
A
Explanation:
FOOD IS CHEMICAL, KINETIC IS ENERGY SO its A
Topic is about blood types.
Answer:h
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:
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. :)
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:
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.