Answer:
Sooo B
Explanation:
There are five major causes of extinction: habitat loss, an introduced species, pollution, population growth, and overconsumption.
Answer:
B. Environmental Chage
Explanation:
Plz mark brainliest :D!
will the moon be new after a lunar eclipse or a solar?
Answer:
A lunar eclipse can happen only when the moon is directly opposite to the sun in the sky with the earth in between.
...
Solar eclipse and lunar eclipse differences (Surya Grahan vs Chandra Grahna)
Solar eclipse (Surya Grahan) Lunar eclipse (Chandra Grahan)
Happens once in 18 months. Occurs two times in a year.
what's a tissue ?...
Explanation:
Cell groups that have the same function.
What is the species habitat like?
Answer:
A habitat is a place where an organism makes its home. A habitat meets all the environmental conditions an organism needs to survive. For an animal, that means everything it needs to find and gather food, select a mate, and successfully reproduce.
Explanation:
Place the correct term in the sentence below. Through are formed. larger molecules
Answer:
Polymerization
Explanation:
for std.10 it can be combination reaction
but molecules are formed by reaction between non metal and non metal.
and product of combination reaction (between metal n nonmetal) is a compound
Name the tissue present in the respiratory tract of human and its function.
True or false
- our phenotype is solely determined by genotype.
plz help:)
Answer:
true, i think! im sorry if im wrong
True or false
- our phenotype is solely determined by genotype.
plz help me!!! :(
Answer:
true
Explanation:
true, bc pheno, determines on geno.
What is the most important part of waves?
Answer:
One of the most important things to remember about waves is that they transport energy, not matter. This makes them different from other phenomenons in physics. Many waves cannot be seen such as microwaves and radio waves.
Answer:
The most important of these is visible light, which enables us to see. Radio waves have the longest wavelengths of all the electromagnetic waves. They range from around a foot long to several miles long.
And then Waves in the ocean are mostly generated by the wind moving across the ocean surface. ... One of the most important things to remember about waves is that they transport energy, not matter. This makes them different from other phenomenon in physics. Many waves cannot be seen such as microwaves and radio waves
Which human body systems are located throughout most of the body?
Answer:
digestive and respritory
Explanation:
The circulatory system, skeletal system, and nervous system are located throughout most of the body.
The circulation (cardiovascular) system and the nerve system are in most of the body.The heart, blood vessels, and blood make up the circulation system. The blood flows through the body to supply oxygen, nutrients, chemicals, and get rid of trash.
The brain, spinal cord, and nerves are all parts of the nervous system. These parts send messages and organise how the body works.
These two systems are found all over the body and make it possible for organs and cells to talk to each other, work together, and get the substances they need.
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how is the pseudo-ruminant digestive system different than human digestive system?
Answer Ruminants differ from non-ruminants (called monogastrics) because they have a four-chambered stomach. The four compartments are called the rumen, the reticulum, the omasum, and the abomasum. The rumen and the reticulum are connected and work in concert and are therefore sometimes called the “reticulorumen”.:The digestive enzymes of these animals cannot break down cellulose, but microorganisms present in the digestive system can. Since the digestive system must be able to handle large amounts of roughage and break down the cellulose, pseudo-ruminants have a three-chamber stomach. hope this helps have a nice night ❤️❤️❤️
Explanation:
Explanation:
ruminant animals have 4 intestine
function of mitochondria
In points (at least 7 points)
Answer:
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
What substance do you think reacts with a cut apple to turn it brown?
anybody got the answer lol
Answer: d
Explanation:
A plant cell has a plant wall so a and b can be disregarded. Mitosis ends with a cleavage factor dividing the cell in two so d represents the last stage
A plant cell has a plant wall so a and b can be disregarded. Mitosis ends with a cleavage factor dividing the cell in two so d represents the last stage.
What is Mitosis?
A single cell divides into two identical daughter cells during the process of mitosis (cell division).
A cell divides into two genetically identical daughter cells during the process of mitosis, which is also known as cell duplication or reproduction. When used strictly, the term "mitosis" refers to the duplication and distribution of chromosomes, the biological units that house genetic material.
The thickening and coiling of the chromosomes signal the start of mitosis during prophase. A spherical structure known as the nucleolus contracts and vanishes.
Therefore, A plant cell has a plant wall so a and b can be disregarded. Mitosis ends with a cleavage factor dividing the cell in two so d represents the last stage.
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Which of the following is the best example of natural selection?
(1) A cheetah living in a zoo lives 10 years longer than average.
(2) The shell of a crab becomes harder over time as a result of being hunted by a predator.
(3) A person's muscles become firmer from riding a bike for exercise.
(4) A population of a rabbit's decreases in number as some move to another area.
Answer:
A cheetah living in a zoo lives 10 years longer than average.
Explanation:
because Cheetahs living in captivity generally live a great deal longer than those in the wild, the life span of wild cheetahs is about 8 to 10 years, as opposed to 12 to 17 years for those in captivity according to the National Zoological Park, a sure fire sign of a healthy life.
The best example of natural selection is that the shell of a crab becomes harder over time as a result of being hunted by a predator, which is mentioned in Option 2, as the other options are not absolutely correct for it.
What is natural selection?Natural selection is the process where certain traits that are advantageous to an organism's survival and reproduction become more common in a population over time. In option (2), the harder shell of a crab is an adaptation that helps the crab avoid being preyed upon by its predator. As a result, the crabs with harder shells are more likely to survive and reproduce, passing on their advantageous trait to their offspring. Over time, the population of crabs will have a higher proportion of individuals with harder shells, leading to the evolution of this trait in the population.
Hence, the best example of natural selection is that the shell of a crab becomes harder over time as a result of being hunted by a predator, as mentioned in Option 2.
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hey all of you science talents I am in desperate needs of your help. Please don't answer randomly. Try your best and DONT ANSWER IF YOU DONT KNOW. Correct answer gets branliest incorrect gets reported. Thanks
Answer:
1. 25%
2. 75%
3. 1:2:1
Explanation:
Calculate mass % of nitrogen and oxygen in NO2.
Explanation:
I'm not too sure but I would find the molar mass of nitrogen dioxide and then divide.
N - 14.01
O - 16.00
(14.01) + 2(16.00)
14 01 + 32.00 = 46.01
14.01 / 46.01 = 0.3044....
30.4%
32 / 46.01 = 0.6955....
69.6%
A bird fluffs its feathers to trap body heat to keep warm during winter months. This is an example of
A bird fluffs its feathers to trap body heat to keep warm during the winter months. This is an example of homeostasis. By trapping the heat, the bird maintains its body temperature.
What is homeostasis?Homeostasis is a condition in which the organism tries to maintain balance between the inside and outside environments. Different animals live in different geographical regions of the earth.
So, they have different adaptations to the environment. The animals that live in an extreme hot climate have different adaptations, such as modifications in the urinary system to release less water, water-preserving organs, etc. They have a large surface area, so heat can be released well.
Animals or birds who live in a cold area show different adaptations, such as more hair on their bodies and more fat, so that they can prevent heat loss and keep their bodies warm in order to maintain normal cellular activities. By doing so, the bird attempts to maintain its normal body temperature.
Hence, the bird is doing so in order to maintain the body's homeostasis.
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What food item will provide 1 mole of sodium in the least mass? What is that mass?
Answer:
Can of soup.
Explanation:
Can of soup will provide 1 mole of sodium in the least mass because the concentration of sodium in can of soup is higher than other food items. The can of soup has 300 mg of sodium while on the other hand, honey nut, frosted flakes, Oreos and pop Tarts has 190 mg, 150 mg, 80 mg, and 180 mg of sodium respectively which is lower than can of soup so we can say that less amount of soup provides more sodium.
anyone able to help?!
Answer:
1a. The template DNA strand, from which the mRNA is synthesized, is 5’ CAAACTACCCTGGGTTGCCAT 3’
(RNA synthesis proceeds in a 5’ à 3’ direction, so the template strand and the mRNA will be complementary to each other)
b. The coding DNA strand, which is complementary to the template strand, is 5’ ATGGCAACCCAGGGTAGTTTG 3’
c. The sequence of the mRNA is 5’ AUGGCAACCCAGGGUAGUUUG 3’
(the sequence of the mRNA is complementary to the template strand and identical to the coding strand with U substituted for T)
d. The third codon is 5’ ACC 3’. Therefore, the corresponding anti-codon is 5’ GGU 3’
2. Below is a table for the genetic code:
T
C
A
G
T
TTT Phe (F)
TTC "
TTA Leu (L)
TTG "
TCT Ser (S)
TCC "
TCA "
TCG "
TAT Tyr (Y)
TAC "
TAA Stop
TAG Stop
TGT Cys (C)
TGC "
TGA Stop
TGG Trp (W)
C
CTT Leu (L)
CTC "
CTA "
CTG "
CCT Pro (P)
CCC "
CCA "
CCG "
CAT His (H)
CAC "
CAA Gln (Q)
CAG "
CGT Arg (R)
CGC "
CGA "
CGG "
A
ATT Ile (I)
ATC "
ATA "
ATG Met (M)
ACT Thr (T)
ACC "
ACA "
ACG "
AAT Asn (N)
AAC "
AAA Lys (K)
AAG "
AGT Ser (S)
AGC "
AGA Arg (R)
AGG "
G
GTT Val (V)
GTC "
GTA "
GTG "
GCT Ala (A)
GCC "
GCA "
GCG "
GAT Asp (D)
GAC "
GAA Glu (E)
GAG "
GGT Gly (G)
GGC "
GGA "
GGG "
a. The following codons can be mutated by one base to produce an amber codon:
CAG Gln
AAG Lys
GAG Glu
TCG Ser
TTG Leu
TGG Trp
TAA Stop
TAT Tyr
TAC Tyr
b. From part a, CAG (Gln) and TGG (Trp) can become amber stop codons through EMS.
c. From part b, both of the resulting amber codons could be suppressed by amber nonsense suppressors generated by EMS.
3a. The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.
b. Template strand is the DNA strand off which the mRNA is synthesized. The coding, or non-template, strand is the DNA strand complementary to the template strand; it has the same sequence (except for T for U substitutions) as the mRNA.
c. The Pribnow box is a sequence of six nucleotides (TATAAT) positioned at -10 that signals where transcription initiation should begin in prokaryotic DNA. The Shine-Delgarno sequence is a short, purine-rich region in the mRNA that is complementary to the rRNA within the 16S ribosomal subunit. The sequence signals which AUG acts as the translation start in mRNA.
4a. False, a wobble allows the anticodon in the tRNA to hybridize with different codons in mRNA.
b. False, a frameshift mutation affects all the subsequent amino acids.
c. False, only one codon (AUG) encodes for the start of protein synthesis; three codons signal the end of protein synthesis.
d. False, the wobble is first base (5’ to 3’) in the anticodon.
e. True, RNA can be used as a template for DNA synthesis in a process known as reverse transcription.
f. True. For example, a single base substitution causing CAT to change to AAT would signal a termination.
g. False, the Wobble Hypothesis explains how alternate base pairing can occur with the first nucleotide (going from 5' to 3') in the anticodon.
5a. Digestion of RNA with alkali will cleave the strand after each 3’ phosphate. Therefore, the products remaining will consist of pppNp, Np, and N-OH
b. If RNA was synthesized in the 3’ to 5’ direction (i.e. by adding ribonucleotides to the 5’ end), then the pppNp and Np fragments should be labeled with tritium.
c. If RNA was synthesized in the 5’ to 3’ direction (i.e. by adding ribonucleotides to the 3’ end), then the Np and N-OH fragments should be labeled with tritium.
d. Since the N-OH fragments were labeled with tritium, RNA synthesis must occur in a 5' to 3' direction.
6. In a missense mutation, the new nucleotide alters the codon so as to produce an altered amino acid in the protein product. With a nonsense mutation, the new nucleotide changes a codon that specified an amino acid to one of the stop codons (TAA, TAG, or TGA). Therefore, translation of the messenger RNA transcribed from this mutant gene will stop prematurely.
Explanation:
:)
10 points to whoever can answer the question in the following attachment
Answer:
a,1 b,2 c,3 d,4
Explanation:
How to breathe in CO2 and give out oxygen?
Don't dare to spam :p
Answer:
when you inhale ( breathe in ), air enters your lungs and oxygen from the air move from your lungs to your blood. at the same time carbon dioxide moves from your blood to the lungs and is exhaled ( breathe out ). this process is called gas exchange and is essential to lifeAnswer:
was your old username glitchkpopstan
CAN THIOL BE FOUND IN CARBOHYDRATES?
The right side of the heart collects oxygen-poor blood from the body and pumps it into the lungs, where it releases carbon dioxide and picks up oxygen.
True
False
Answer:
true
Explanation:
The tropical rainforest is the most coplex and species rich biome in the world but it is soils are nutrient poor . What is the reason for this
Answer:
because nutrients cannot be stored in the soil for a long time
Explanation:
In rainforests, high temperatures and humid conditions lead to the rapid decomposition of the organic matter in the soils, which releases nutrients rapidly. However, rainforest soils are poor in nutrients due to rains that wash dead organic material from them. Moreover, rainwater is filtered naturally into the ground, thereby extracting (leaching) nutrients off the surface.
Pepper is an elite competitive cyclist who wanted to gain a physiological advantage over his competitors. He decided to have his own blood drawn and stored so that it could be infused into him prior to competition. What is the theory behind this practice? How effective is this procedure?
Answer:
Blood doping
Explanation:
This is called blood doping and many athletes have used it (its cheating btw). They'll go to a place with high elevation and train and then take their blood. After they go back to a lower elevation they inject that blood back in and it allows them to be able to perform better. So in this case, the cyclist would be able to perform better over her competitors (more energy/able to exert more energy for longer period of time, etc.)
What amino acid does the mRNA codon GUC code for?
Answer:
The answer would be Valine.
Scientific advancement depends on discovery and the development of new theories. Which of
these statements best describes how repetition can affect scientific progress?
O Repetition can prove whether a theory is right or wrong,
O Repetition can increase the accuracy of measurements.
Repetition can stall scientific advancement
Repetition can reveal flaws in an experiment's methods.
Answer: i’m preeeetty sure it’s B
Explanation:taking the test rn and that’s what i’m gonna put
help me plzzzzzzzzzzzzzz
Information relating to an ecosystem is contained in this diagram. Which information belongs in areas X and Y?
Answer:
count them
Explanation:
The ecosystem includes biotic and abiotic factors, where X is a biotic factor and Y is the abiotic factor. Therefore, option A is correct.
What are ecosystems and their components?An ecosystem is a collection or community made up of both living and non-living things, as well as their interactions. Both natural and artificial ones are possible. There are two parts to any ecosystem: biotic and abiotic components.
An ecosystem can be divided into its biotic constituents, which include all of its living members (plants, animals, bacteria, fungi, etc.), and its abiotic constituents, which include minerals, the environment, soil, water, sunshine, and all other nonliving elements.
Thus, X represents biotic factors and Y represents abiotic factors. Therefore, option A is correct.
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What do reflections add to anecdotes?
O excitement and suspense
O more background details
O more specific descriptions
O meaningful insights
Answer:
Meaningful insights
Explanation:
took the quiz and got it right
Cual teoria complementa la teoria del big bang y explica la expansion del universo y quien la propuso
Answer:
La teoría de la inflación eterna
Explicación:
La teoría de la inflación eterna es la teoría que complementa la teoría del Big Bang y Andrei Linde es el científico que es el padre de la teoría de la inflación cósmica. Según esta teoría, la expansión del universo se mantiene en la mayor parte del universo, lo que significa que nuestro universo se expande continuamente y nunca se detiene en absoluto.