B.
Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms.
The Pacific plate collides with and is subducted under four other crustal plates. The area where this happens has lots of
volcanic activity. This area is called the
Ring of Volcanoes
Bermuda Triangle
Ring of Fire
Ring of Heat
Answer:
Ring of fire
Explanation:
Is human blood ever any color other than red?
Answer:
no
Explanation:
Human blood is red because of the protein hemoglobin. Hemoglobin contains a red-coloured compound called heme that’s important for carrying oxygen through your bloodstream
Sometimes blood can look blue through our skin, but its never blue. the reason we see blue is because blue light doesn't go as deep into kin as red. If the blood vessel is deep, your eyes see more blue than red light due to the blood’s absorption of red wavelengths.
which process occurs when bacteria converts nitrogen gas to a usable form
Answer:
Fixation
Explanation:
Answer:c
Explanation:fixation
What is toxic pollution?
Answer:
It is when things get contaminated like water, soil, and air and it can be harmful and poisonous.
The phylum Nematoda includes the flatworms.
a. true
b. false
Answer:
False
Explanation:
Most abundant element in the biomolecules studied (fats, proteins, carbohydrates, nucleic acids) was....
carbon
Monosaccharide
Amino acid
amino
acid
Explanation:
thats amino acid
What are the effects of greenhouse gases on Earth?
Answer:
greenhouse gasses get trapped in the atmosphere and contribute to global warming
Answer: The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere.
Explanation:
In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BBFF x bbff cross would be expected to be heterozygous for both traits?
Answer:
100%
Explanation:
This question involves two genes in guinea pigs; one coding for fur color and the other for fur length. The alleles of black fur (B) and short fur (F) is dominant over the alleles for brown fur (b) and long fur (f).
In a cross between two offsprings with genotypes: BBFF x bbff, the following gametes will be produced by each parent:
BBFF - BF, BF, BF, and BF
bbff - bf, bf, bf, bf
Using these gametes in a punnet square (see attached image), one will notice that all of the offsprings will have the genotype: BbFf i.e all or 100% of the offsprings are heterozygous for both of the genes or traits.
According to ___________________, processes occur today as they did in the past.
Answer:
Uniformitarianism
Explanation:
Why are packed juices contaminated with yeast
Answer:
It is because yeast is responsible to fix the carbon dioxide.
Match each body to its best description:
black hole
?
a collapsed star that does
not let light escape
white dwarf
?
T
a star that has expanded
and cooled
red giant
?
an old, very dense, hot star
that is cooling
nebula
?
may collapse to form a
star
Answer:
Here u go
Explanation:
black hole=a collapsed star that does not let light escape
white dwarf=an old, very dense, hot star that is cooling
nebula=may collapse to form a star
red giant=a star that has expanded and cooled
Matching of each body to its best descriptions is given below:
Blackhole ---- a collapsed star that does not let light escape.White dwarf ---- an old, very dense, hot star that is cooling.Red giant ---- a star that has expanded and cooled. Nebula ---- may collapse to form a star. What do you mean by a Star?A star may be defined as any huge self-luminous cosmic body of gas that shines by radiation emanated from its internal energy sources.
These celestial bodies may provide some of the foundations and understanding of the mythologies, the system of religion, derivation of the earth's surface, etc.
Therefore, the matching of each body to its best descriptions are described above.
To learn more about the Celestial bodies, refer to the link:
https://brainly.com/question/16159267
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What is crossing over in meiosis and how does it ensure genetic diversity?
Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. ... It is obviously another source of genetic variation in offspring.
Explanation:
i looked it up on google
Unlike fat, protein contains:
1)Carbon
2)Oxygen
3) Nitrogen
4) Hydrogen
HELPP PLEASE!!!!
Answer:
Nitrogen
Explanation:
Hope this helps :)
Answer:
C. Nitrogen
Explanation:
Fat contains Carbon, Oxygen, and Hydrogen, like protein. However, protein also contains Nitrogen which fat does not.
Hope this helped. :)
How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrusions near a sedimentary rock layer by comparing the relative ages of several sedimentary rock layers by identifying fossils in nearby intrusion and extrusions and determining their age
Answer:
Radiometric dating methods
Explanation:
Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.
The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.
The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.
Answer:
by dating the age of intrusions and extrusions near a sedimentary rock layer
Explanation:
got it right on the assighment
You just wrote in the template strand of DNA. Use the template strand to transcribe a strand of mRNA.
Write down the tRNA anti-codons that pair with the mRNA strand.
Answer: 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. Template stand is the DNA strand off which the mRNA is synthesized.
Explanation:
The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.
What is Codons?
The anticodon is the complementary three nucleotide sequence in the appropriate tRNA. Template stand is the DNA strand off which the mRNA is synthesized.
Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein synthesis (stop signals). There are 64 distinct codons, of which 3 serve as stop signals and 61 identify amino acids.
The bases that make up DNA and the associated messenger RNA are called bases. These nucleotides are frequently identified in RNA by the letters A, U, C, and G.
Therefore, The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.
To learn more about codon, refer to the link:
https://brainly.com/question/22991780
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Which of the following is outer covering of human heart?
1.Pericardium
2.Myocardium
3.Endocardium
4.None of them.
5.Other:
Answer:
pericardium is outer covering layer of heart. pericardium is double layered membrane.
Explanation:
Answer:
2. Myocardium yan po
I'm not sure
What binomial nomenclature? A two-word name for organisms where the first word is the family and the second word is the species
A two-word name for organisms where the word is the genus and the second word is the species
A two-word name for organisms where the first is the genus and the second word is the class
A two-word name for organisms where the first word is the species and the second word is the genus
Answer:
A two-word name for organisms where the word is the genus and the second word is the species
Explanation:
Binomial nomenclature is the system biologists use to name species of living beings. When we translate this term, we get the two-name naming system. This tells us a lot about how species are named - their name consists of two components. The first component is the name of the genus the species belongs to and the second is the name of the species. For example, the scientific name used for cats is Felis catus. Felis is the genus and the species is catus.
Please help me in my homework (keep it simple,i couldnt find Science ;-; I am sorry) What is environment? What are three main aspect of environment? 2)Write down any four importance of environment.
Answer: It is then the space in which the life of living beings and the interaction between them and other things takes place. It is made up of living organisms, abiotic elements and artificial elements. It includes physical, chemical and biological components of the organisms and elements that form it. It is important because it is the place of habitat of humanity, it provides natural elements such as water and food, it provides fuels and raw materials that serve to manufacture artificial things and it contributes to the sustainability of life on the planet.
Explanation:
The environment is a system made up of living organisms (such as animal and plants), abiotic elements (lifeless, such as stones or water) and artificial elements (created by man, such as buildings) that are related to each other and can be modified by human action. It is then the space in which the life of living beings and the interaction between them takes place.
It includes physical, chemical and biological components of the organisms and elements that form it. That is, how is its composition and its function in the environment.
The importance of the environment lies in:
It is the place of habitat of humanity, so it influences the life of human beings and future generations. It is the space where life develops at this time with all living beings and their natural components.It provides natural elements such as water and food since it offers all its natural resources needed by the human being. It provides fuels and raw materials that serve to manufacture the artificial things we use daily, to build houses, have light, transport, among many other benefits to exist. In the environment we find a great biological diversity of plants and animals that help maintain the ecological balance of the earth. This contributes directly to the sustainability of life on the planet. Each organism has a unique role to play.Therefore, all societies must guarantee their care for their existence and make rational use of all their resources.
Once pollen lands on the stigma, it forms a pollen ____________________ down through the long_____of the pistil [the female reproductive part] into the flower's ______– which contains ovules. fill in the blank
Answer:
1. Pollen tube
2. Style
3. Ovary
Explanation:
This process is describing the process of POLLINATION, which is the transfer of pollen grains from the anther of a male flower (androecium) to the stigma of the female flower (gymnoecium). After pollination i.e. the pollen has landed on the sticky stigma, the pollen grows out a tube called POLLEN TUBE.
The pollen tube extends through the STYLE of the female flower called PISTIL to the OVARY. The ovary is the reproductive part of the female flower that produces the ovules, which the sperm in the pollen is about to fertilize.
Match the following terms and definitions.
1. any substance that can be decomposed by bacterial action
pollution
2. heat energy coming from inside the Earth; heat from volcanoes or geysers
geothermal
3. the act of contamination; making dirty or unclean
biodegradable
BRAINLIEST:
in which month is a hurricane most likely to occur: October or December? explain
Answer:
October
Explanation:
October is one of the hurricane season months
RNA interference (RNAI) is a mechanism of gene regulation in eukaryotes. RNAI is initiated by ____, which leads to the ____ of specific genes.
Box 1:
single-stranded RNA
double-stranded RNA
double-stranded DNA
Box 2:
silencing
induction
expression
Answer:
double-stranded RNA; silencing
Explanation:
The RNAi mechanism is a natural process of gene silencing triggered by different small non-coding RNAs such as, for example, siRNAs, miRNAs and piRNAs. RNAi is a powerful technique to induce gene silencing in a sequence-specific manner. The delivery of exogenous double-stranded RNAs (dsRNAs) can be used to induce this evolutionarily conserved mechanism. The dsRNAs first bind to RNAi core components (Ago, Piwi proteins) and then target complementary mRNAs to induce their degradation.
The law of universal gravitation applies to all objects in the universe
True
False
Answer:
Explanation:
yes true the gravitational pull does ap
ply to all objects of the universe
Answer:true
Answer:
true
Explanation:
What are three different types of RNA
Explanation:
The 3 different types are messenger, transfer, and ribosomal RNA.
Answer:
Of the many types of RNA, the three most well-known and most commonly studied are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA), which are present in all organisms.
Explanation:
I got it right on the assignment.
3.
Which of the following does NOT occur during cytokinesis of animal cells?
Answer:
A cell plate forms.
Hope I was able to help! ♡♡
Ball and socket joints allow bones to move _____.
back and forth
in all directions
across each other
up and down
Answer:
in all directions
Explanation:
Your shoulder is a ball and socket joint and it can move in all directions as an example.
Answer:
B.) in all directions
Explanation:
Ball-and-socket joints are as the name implies. A ball-shaped end of bone attaches to an indentation on another, the socket. It rotates around in any direction, with an example being the end of your arm that attaches to your torso. This design makes it more mobile than any other type of joint.
Which is the best description of the cause of sound waves? *
Answer:Sound waves are caused by the vibration of the oceans floor like a underwater volcano causes the water to vibrate
Explanation:
What is the name of the structure labeled X? (Make the word plural)
Answer: Centrioles
Explanation:
Question 3 (3 points) (03.06 LC)
Select the correct statement describing the relative fitness in soapberry bugs.
A soapberry bug with high relative fitness feeds more successfully on fruits than do other bugs.
A soapberry bug with high relative fitness has a high number of offspring that survive to reproductive age.
A soapberry bug with high relative fitness has more mates than other bugs.
A soapberry bug with high relative fitness stays with one mate through its lifetime.
Answer:
B
Explanation:
I took the test 1 hours ago
A plant cell with 02 M NaCl is
placed in 0.5 M Nacı
solution. Describe the
movement of water and
solutes and justify your
prediction
Answer:
Water will diffuse into the cell.
Explanation:
As the NaCl conentration in cell is greater then in water so water will diffuses into the cell and NaCl will move out of the cell