3) Write down the names of organs that participate in respiration I explain any two of of them.
How does the natural process of meiosis support evolution?
A. Each daughter cell mutates its own DNA during Reduction Division to produce more variation.
B. Each daughter cell is unique, providing natural variation.
C. Each daughter cell is identical, providing natural variation.
D. It does not support evolution.
During meiosis, each daughter cell tends to undergo mutation of its own DNA and leads to more variation. The correct option is A.
What is meiosis?Meiosis is a sort of cell division that occurs in organisms which reproduce the fusion of gametes and results in a diminution in the number of chromosomes in gametes. Body cells in humans are diploid, with two sets of chromosomes.
Meiosis is a process of cell division that produces 4 gamete cells while reducing the number of chromosomes in the parent cell by half.
This process is essential for the generation of egg and sperm cells for reproduction.
Meiosis reduces the number of chromosomes in a cell by half while also generating new allele pairings that are dispersed across daughter cells via segregation and recombination.
This genetic reshuffling, which is thought to be the basis of reproduction success, reduces genetic affiliations within and between loci.
Thus, the correct option is A.
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which of the folowing best decribes the shape of a DNA moleclue?
Answer:
The answer is letter A, "Two strands of nucleotides bonded together at their bases, twisting to form a double helix." When it comes to RNA, a single helix will form.
The actual pair of alleles present in the cells of an individual is known as the:
genotype.
karyotype.
phenotype.
archetype.
What happens to form a mid-ocean ridge?
A. At a divergent boundary between two oceanic plates, magma rises
to form a long chain of volcanoes.
B. At a convergent boundary between an oceanic plate and a
continental plate, magma rises to form a long chain of volcanoes.
C. At a divergent boundary between two continental plates, magma
sinks to form a long valley with mountains on either side.
D. At a transform boundary between two oceanic plates, magma
sinks to form a long valley with mountains on either side.
SUBMIT
Answer:
b
Explanation:
A cell membrane is bigger a specific about what allows across how does this help the cell
Answer: It helps the cell absorb as many different molecules as possible.
Explanation: the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Which is one function of a protein macromolecule?
A. Making up the connective tissue in tendons
B. Cushioning the internal organs of an animal
C. Providing the building instructions for living things
D. Making the leaves of plants waterproof
Answer:
The muscles of the body is entirely made of proteins. They help in the making the connective tissue in the tendons of the body.
Explanation:
A. Making up the connective tissue in tendons
¿Cuál de los siguientes niveles es el sucesor del nivel tejido?
A.
Órgano.
B.
Sistema.
C.
Organismo.
D.
Célula.
C. Órgano
Porque Célula→Tejido→Órgano→Sistema→Organismo
The chart shows four stages of demographic transition.
Answer:
D. Lots of people die. Lots of people are born to make up for it. We can see this from the high orange and purple lines.
Answer:
Sharply dropping birthrate
Explanation:
A geologist finds some tilted sedimentary rock layers.
Which conclusion can the geologist draw by looking at the rock layers?
1.Their absolute age is 600 million years.
2.They were tilted before they were deposited.
3.They were originally deposited horizontally.
4.The youngest layer was originally deposited as the bottom layer.
Answer:
Angular unconformity also causes geologic tilting. Angular unconformity occurs when parallel strata of sedimentary rocks are deposited on layers that are tilted, perhaps as a result of erosion. So the answer I think is B/2.
Explanation:
Plz don't be mad if i'm wrong
Question 13(Multiple Choice Worth 5 points) (04.01 LC) Based on the way living things are organized, what level combines to form tissues?
A.Cells
B. Molecules
C.Organs
D. Organ systems
Answer:
A
Explanation:
Because a cell is the smallest unit of life
how is erythrocytes an advantage in exchanging and carrying
Answer:
Shape of Red Blood Cells Erythrocytes are biconcave discs with very shallow centers. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
questions.
Online Content: Site 1
Online Content: Site 2
What changes can occur in an aquatic ecosystem as a result of nutrient loading? (Site 1)
Answer/Explanation:
Essential nutrients such as nitrogen, phosphorus, at specific moderate level are needed for the overall functionality of the aquatic ecosystem. However, when excess of these elements infiltrates the aquatic ecosystem, the nutrient overload causes a surge in the growth of aquatic plant. For example, algal bloom. These increased growth of aquatic plant further takes up space and oxygen, prevents sunlight and later leads to what is known as "dead zone". It is a condition of an ecosystem having little or no biological activity. Aquatic life is impacted negatively when this occurs.
These are the changes that occurs as a result of nutrient loading.
I can't understand this sentence structure, so if somebody could please help me and have the right answers I will give brainliest.
the junction between two neurones is called a ____________
what one word completes the sentence
Answer:
The junction between two neurons is called a Synapse.
What factor is described as sexual
selection?
A, non-random mating
B. migration
C. small populations
D. natural selection
Answer:
The correct answer is - D. natural selection.
Explanation:
Sexual selection takes place due to competition between individuals of the intraspecies same-sex and of mate choice which driving the evolution of reproductive traits.
Sexual selection is a mode of natural selection as it leads to the evolution of specific traits. Other examples or options are not related to sexual selection directly and are not affected by sexual selection.
WHAT DO U MEAN BY HYBRIDS!
Answer:
I don't know what I mean by hybrids
Explanation:
Answ:
Como híbrido podemos designar a todo aquel individuo que es producto del cruce de dos organismos de distinta especie. Así, en biología, un híbrido puede ser un animal o un vegetal que es resultado del cruce de dos progenitores de distinta especie que, sin embargo, pueden producir progenie.
Explanation:
Once an experiment is complete,
which of the following is NOT a step to
be taken with the data?
A. incrpreting it
B. plotting it on a graph to find correlations
C. analyzing it with statistical analysis
D. altering it to fit within the hypothesis
Answer:
D. altering it to fit within the hypothesis
Explanation:
An experiment is carried out to fill an inquisition i.e. to answer a question. According to the scientific method, prior to experimentation, there must be a HYPOTHESIS. The hypothesis is tested for rejection or approval via experimentation.
After the experiment has been conducted, several things can be done with the data obtained. For example:
- Data can be interpreted
- the data can be plotted in a graph to find correlations
- It can be analyzed it with statistical analysis.
One thing that should never be done is; altering the data from experimentation to fit in the hypothesis.
Which of the following occurs as protein form?
Answer:
A
Explanation:
Peptide bonds are formed by a biochemical reaction
During which phase of mitosis do the chromatids line up in the center of the cell?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Answer:
B) Metaphase
Explanation:
Have a nice day xd ♡
__Igneous rocks form below Earths surface
Answer:
intrusive igneous rocks
Please Cove am save me
Explanation:
Appropriate Question:-
The output for a 60kg woman who runs up a 3m high flight of stairs in 3.5 sec.starting from rest but having a final speed of 2 m/s.
Given:-
Mass of woman=m=60kg.
Height=h=3m
Time=t=3.5secs.
To find :-
Here we want to calculate the output for a woman
Here first we should calculate work done first.
work \: done = mghworkdone=mgh
Applying the values,
work \: done = 10 \times 60 \times 3workdone=10×60×3
Work done= 1800Joule.
Now , lets calculate power,
power = \frac{workdone}{time \: taken} power=
timetaken
workdone
Now,
Applying the values ,
power = \frac{1800}{3.5} power=
3.5
1800
Power =514.2857 watt.
Hope it helps u mate .
Thank you .
Answer:
514.2857 watt.
Explanation:
What is one major difference between federal and unitary governments?
A.
Constitutions are more important to a unitary government.
B.
There is more separation of powers in a unitary government.
C.
State governments are more powerful in a unitary government.
D.
The central government is stronger in a unitary government.
Answer: the central government is stronger in a unitary government
Explanation:
i got it wrong and it said that’s the correct one
what is the difference between artificial kidney and natural kidneys?
PLS HELP -
Drag the tiles to the correct boxes to complete the pairs.
Match the pollution control method to its description
Answer:
Incineration: Solid pollutants are burned...
Settling: Polluted water is aloud to stand still...
Composting: Microbes are used to convert...
Gas adsorption: Pollutants are captured through contact with hard...
Explanation:
Amazing nowone else got to your question. Your welcome.
A moleclue of mRNA with the sequence GGUCAUCACAU experienced a point mutation that caused the sequence to become GGUUAUACAUAU. which of the following terms describes this type of mutation?
Answer:
it's called a genetic mutation
During production of a drug, all work area surfaces must be disinfected using sterilized disinfectants. Which of the following statements about disinfectants are true? Select all that apply. View Available Hint(s)for Part A Disinfectants destroy all microbes present on a surface. Disinfection can be used to treat work surfaces as well as workers (i.e., washing hands). Disinfection can occur by physical or chemical means. Disinfectants are used to inhibit or destroy pathogens. Endospores and viruses can resist disinfectant treatment.
Answer: The correct options are
--> Disinfectants are used to inhibit or destroy pathogens,
--> Disinfection can occur by physical or chemical means,
--> Endospores and viruses can resist disinfectant treatment.
Explanation:
To prevent infectious diseases from spreading or to sterilise work area surfaces during the production of drugs, chemicals known as disinfectants as used. These are chemicals that kill or inhibit the growth of pathogens. Other chemicals such as antiseptics can also kill and prevent the growth of mainly pathogenic microorganisms. However, disinfectants are stronger chemicals than antiseptics and so are often used on non-living things and surfaces.
Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores (endospores) and viruses, so it is less effective than sterilisation.
There are generally two methods of disinfection:
--> The chemical method: A typical example of a chemical disinfectant is the carbolic acid. It is used for disinfecting lavatories and floors.
--> The physical method: here, physical agents are use to disrupt and damage the pathogenic organisms on work surfaces. Some typical example include: UV irradiation, heat, sunlight exposure, sonic or hydrodynamic pressure and radiation.
What conditions need to be present for an atom to form hydrogen bonds?
For an atom to form hydrogen bonds, it needs to be bonded to a highly electronegative atom (such as nitrogen, oxygen, or fluorine) and have a hydrogen atom attached to it.
Hydrogen bonds are intermolecular forces that occur between a hydrogen atom bonded to a highly electronegative atom and another electronegative atom nearby. The highly electronegative atom, often nitrogen (N), oxygen (O), or fluorine (F), attracts the shared electrons in the covalent bond towards itself, creating a partial negative charge. This leaves the hydrogen atom with a partial positive charge.
The conditions necessary for hydrogen bonding to occur are:
Presence of a Hydrogen Atom: There must be a hydrogen atom (H) bonded to an electronegative atom (N, O, or F) in the molecule or adjacent molecules.Highly Electronegative Atom: The electronegative atom (N, O, or F) must have a strong attraction for electrons, creating a significant partial negative charge.Close Proximity: The electronegative atom with the partial negative charge must be close enough to another electronegative atom in another molecule or nearby region to allow for electrostatic attraction.These conditions are essential for the formation of hydrogen bonds. The hydrogen bond itself is a relatively weak force compared to covalent or ionic bonds, but it is significant in biological systems and plays a crucial role in many biological processes. Hydrogen bonding contributes to the unique properties of water, the stability of protein structures, the binding of DNA strands, and various other molecular interactions.
In summary, for an atom to form hydrogen bonds, it must be bonded to a highly electronegative atom (N, O, or F) and have a hydrogen atom attached to it, with another electronegative atom in close proximity to allow for the formation of electrostatic interactions.
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The chemical energy stored in ATP during photosynthesis is released during the dark phase to
a) produce O2
b) produce CO 2
c) release energy for the "light"
d) produce a carbohydrate from CO 2
Answer:
A) produce O2
Explanation:
This is the exchange cycle between the plants and animals. Animals give off carbon dioxide (CO2) as an excess waste while the plants give off oxygen (O2).
PLEASE HELP PLEASE!!!! DOES ANYONE SOMEONE NAMED HIROJABAMI!?!?!? PLEASE HELP!!!!.....
Answer:
well I dnt know
btw thanks for ur points I really needed that.
