Answer:
2 electrons
Explanation:
According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.
Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.
Answer:
A. two
Explanation:
i got it right
How are binary fission and mitosis similar
Answer:
A
Explanation:
Answer:
A. Both produce genetically identical daughter cells.
Chromoplasts have two main functions. Which of the following statements exemplifies one of the functions of a chromoplast?
a The mitochondrion was once a separate prokaryotic cell that were taken in by a larger cell.
b Potatoes are high in starch.
c Red, yellow, and orange peppers are green until they are ripe.
d The green pigment chlorophyll allows a plant to absorb energy from the sun.
Answer:
C. Red, Yellow, and orange peppers are green until they are ripe.
Explanation:
this question was difficult lol
what are some early signs of MBD in bearded dragons
Answer:
stress lack of eating Constipation and weakness
Explanation:
are the main ones
What’s the relationship between ants and large blue butterfly larva?
a) competition
b) predation
c) mutualism
d) commensalism
Answer:
its D commensalism, one benefits from it and the other gets no harm
Explanation:
An organism is exposed to a mutagen, such as X-rays or ultraviolet light. What could be the effect of the mutagen on the organism? Select all of the answers that apply.
The mutagen may disrupt gene function to the harm of the organism.
B. The mutagen may change gene function in a way that benefits the organism.
C. The mutagen may change the genetic material of the cell from DNA to proteins.
D. The mutagen may change the binding between codons and anticodons.
E. The mutagen may have little or no observable effect on the organism.
Answer:
a, b, c, e
Explanation:
- since mutations are random, they could both harm or benefit or have no effect on the organism (depends on where in the DNA is mutated, on the type of mutation that occurs, on whether the mutation is fixed, etc.)
- the binding between codons and anticodons are always as follows:
A on mRNA binds to U on tRNAT on mRNA binds to A on tRNAG on mRNA binds to C on tRNA and vice versaMutagens are substances that damage DNA and can cause permanent changes in the DNA sequence, depending on the ability of the organism to fix the mess.
Mutagen's effect:Deoxynucleoside triphosphates (dNTPs), which are utilized by DNA polymerases to duplicate DNA, can also be damaged by DNA-damaging agents.
A mutagen could harm the organism by disrupting gene function.A mutagen may alter gene function to the organism's benefit.A mutagen can alter codon-anticodon binding.Therefore, the final answer is "Option A, B, and D".
Find out more about the X-rays here:
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A coiled structure of DNA and protein that forms in the cell nucleus during cell division is
called a chromosome.
True
False
Answer:
true
Explanation:
Answer:
TRUEE
Explanation:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes.
The texture of igneous rock that is composed of large mineral grains
(GIVING BRAINLIEST AND EXTRA POINTS!!)
Samantha built the following circuit, but the light bulbs did not turn on. How could Samantha fix the circuit to make the light bulbs work?
A) Samantha could connect another wire from the side of the battery that does not have a wire connected to the unconnected side of the second light bulb.
B) Samantha could connect another wire from the side of the battery that has a wire connected to the unconnected side of the second light bulb.
C) Samantha could connect the wire from the other side of the battery to the first light bulb. This would make the light bulbs work.
D) Samantha could remove one of the light bulbs. This would make the other light bulb work
Answer:
A
Explanation:
Samantha could connect another wire from the side of the battery that does not have a wire connected to the unconnected side of the second light bulb.
Answer:
The answer is option A
In a circuit if the battery or a power source is there both the terminals of the battery should be connected with the bulb or motor so that they work.In case of two bulbs or motors one wire should connect any one terminal of the battery and two same terminals of another bulbs just as shown in the picture but again the remaining terminal should be conected to the remaining terminal of second bulb so that they work.
Pls mark as brainliest pls
Explanation:
Help please!!!! Which table below matches the graph above
Answer:
b
Explanation:
Answer: C
Explanation: If you look closely, we know definitely that Friday is 58.
Therefore, B can't be the answer. Then, I can also see that Thursday has to be 61. And looking at the options there are no other answers that have 61 as Thursday.
Bio....................
Answer:
The answer is Contain ribose
Explanation:
DNA contains De-oxy Ribose, while RNA contains Ribose Answer
What organelle would be considered the trashcan of the cell
Answer:
Lysosome i believe
Explanation:
This is where cellular dibris is sent to be disposed, in the lysosome.
Hope this helps you out.
More information on g00gle btw.
Which organism is most likely 10cm in size
Answer:
A lizard is approximately 10 centimeters in size, so the answer is "lizard".
Today, prairie ranchers and farmers raise:
sheep, cattle, and pigs
COWS, deer, and bison
O horses, cows, and bison
o hawks, owls, and snakes
Answer:
sheep, cattle, and pigs
Explanation:
From sheep, cattle, and pigs, the most raised animal on the farms today is beef cattle. The reason why cattle is the first choice is its profitability. The cattle are easy to maintain, they just need good pasture and freshwater, some supplemental food during the winter, and enough space.
Which of the following is not true of asexual reproduction?
A offspring that differ genetically from either parent
B offspring inherit all their genetic material from just one parent
C a single cell duplicates its genetic material, and then splits into two new genetically identical cells
D an example is a paramecium
Answer:
idk
Explanation:
Answer:
D
Explanation:
I don't need to put 20 charavters
There are 40 chromosomes in germ cells of a ferret. How many sex chromosomes are there in a ferret's ovum?
Answer:
Explanation:
In a mitotic cell division, the number of chromosomes remains constant. It is so because the chromosomes are replicated to produce chromatid which during cell division is equally distributed in all the daughter cells thereby preserving the chromosome number.Both sperm cell and ovum have 23 chromosomes each. It is the fusion of both at fertilization that brings about 46chromosomes seen in somatic cells. These chromosomes are 22pair somatic chromosomes and a pair of sex chromosome (I.e XX or XY).The cells of the body have a diploid number of chromosomes (2N). The diploid number is usually double the haploid number (1N), so if the haploid number of chromosomes is 20, then 2x20=40. So the answer either 40 or 36
To determine the number of sex chromosomes that are there in a ferret's ovum is 2 sex chromosomes.
Given the following data:
Number of chromosomes = 40 chromosomes.Sex chromosomes can be defined as a pair of chromosomes that are responsible for determining the gender of a living organism i.e whether an organism is either male or female.
To determine the number of sex chromosomes that are there in a ferret's ovum:
Mathematically, the number of chromosomes in an organism is given by the formula:
[tex]Chromosomes = 2N[/tex]
Where:
N is the number of sex chromosomes.Substituting the given parameter into the formula, we have;
[tex]40 =2N\\\\N=\frac{40}{2}[/tex]
N = 2 sex chromosomes
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Which of the following correctly organizes these genetic terms in order from smallest to largest?
chromosome, gene, nucleotide, DNA molecule
nucleotide, gene, DNA molecule, chromosome
DNA molecule, nucleotide, gene, chromosome
DNA molecule, nucleotide, chromosome, gene
Answer:
2
Explanation:
nucleotide,gene,dna,chromosome
The correct listing of genetic terms from smallest to largest is nucleotide, gene, DNA molecule, chromosome.
GENETICS:
Genetics is the branch of biology that deals with the study of genes and inheritance. Like every subject, genetics possess some terms that can be hierarchically arranged. The terms are in the order:
Nucleotide: Nucleotide is the monomeric unit of nucleic acids made up of three components namely: nitrogenous bases, phosphate group and pentose sugar. Gene: A gene is a segment of DNA or RNA from an organism's genome that codes for a particular trait. DNA: DNA is one of the two nucleic acids that stores genetic information in living cells. Chromosome: Chromosome is a X-shaped structure made up of DNA and proteins tightly woven together.Hence, the correct listing of genetic terms from smallest to largest is nucleotide, gene, DNA molecule, chromosome.
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BIOLOGY - QUARTER 2 - SUN
Which two bio molecules must the supplement contain to provide these benefits
Answer:
Proteins and Carbohydrates
The supplement has to build lean muscle and strengthen tendons and ligaments. Muscle, tendons, and ligaments are all made of protein. So the supplement must contain protein.
It should also provide energy. The most readily used form of energy is carbohydrates
Please help!!! Thanks pp
Answer:
Heterozygous.
Explanation:
Since the son has a recessive and dominant trait, (A shaded square and a white circle.)
PLEASE HELP MARKING PEOPLE AS BRAINLIST
Which hypothesis about cells was later found to be WRONG by scientists?
A. The cell is the most basic unit of life.
B. All organisms are made of cells and cell products . C. Cells are formed spontaneously by free-cell formation .
D. Plant cells and animal cells share structural similarities .
Answer:
D
Explanation:
In man, glucose is present in blood plasma but not in urine. This is because glucose
molecules are
(A) actively transported from the proximal convoluted tubule to blood capillaries
(B) oxidised to supply energy for ultrafiltration
(C) stored in the kidney
(D) too large to enter Bowman's capsule
In man, glucose is present in blood plasma but not in urine. This is because glucose molecules are actively transported from the proximal convoluted tubule to the blood capillaries.
What is glucose?Glucose is a monosaccharide, biomolecule found in ingested food which is used to provide energy to the cells of the body. Glucose is usually found only in the blood, since it is reabsorbed in the renal tubules, but when there are pathologies in which glucose levels in the blood are increased, the sites that reabsorb glucose become saturated, thus having an escape of glucose in urine.
Therefore, we can confirm that in man, glucose is present in blood plasma but not in urine. This is because glucose molecules are actively transported from the proximal convoluted tubule to the blood capillaries.
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DNA contains four types of nitrogenous bases. One of these bases is
Answer:
Explanation:
adenine (A), thymine (T), cytosine (C), and guanine (G).
Which sequence describes the formation of a gamete?
A.transcription → replication → translation
B.replication → cell division I → cell division II
C.mitosis → cell division I → translation
D.cell division I → cell division II → transcription
Answer:
part c
Explanation:
The sequence replication → cell division I → cell division II describes the formation of gametes.
Where does the formation of gametes occur?Meiosis (reduced division), in which a germ cell splits into two pieces and produces four gametes, is the process by which gametes are created.
Meiosis is a type of cell division that results in the production of four gamete cells and a 50% reduction in the number of chromosomes in the parent cell.
The gonads are where gametes (germ cells) are made. This process is known as spermatogenesis in males and oogenesis in females. The majority of novel mutations arise during gametogenesis, however males exhibit a higher mutation rate.
Learn more about gametes:
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which of the following would be a hypothesis for a scientific investigation about how food shopping decisions affect food security
Answer:
Isn't there any photo or some options at least? Actually, it says which of the following-that's why I asked
Explanation:
If you add something as a reference then I will be able to answer and help you :)
Why did polio vaccine make people paralysed?
Answer:
When it multiplies in the nervous system, the virus can destroy nerve cells (motor neurons) which activate skeletal muscles. These nerve cells cannot regenerate, and the affected muscles lose their function due to a lack of nervous enervation.
Explanation:
What are the Sampling techniques for Biology??
Answer:
Sampling Techniques in Biology Sampling methods of biological populations are Simple Latin Square Sampling, Capture Recapture Sampling, Inverse Sampling, Line Transect Sampling, Line Intercept Sampling and Adaptive Cluster Sampling.
Answer:
Sampling methods of biological populations are Simple Latin Square Sampling, Capture Recapture Sampling, Inverse Sampling, Line Transect Sampling, Line Intercept Sampling and Adaptive Cluster Sampling.
Explanation:
hope these help :))
The backbone of the cell to which all organelles are attached, also functions in cell division is ______?
a.Cytoskeleton
b.Cell Wall
c.Nucleus
d.Ribosome
a) cytoskeleton as it's responsible for formation of spindle filaments during cell division
How much of the energy (what percentage) of oxidizing Glucose to Pyruvate is captured in Catabolism as NADH ( H ) and ATP?
Answer:
40 percent.
Explanation:
About 40 percent of energy as ATP is produced due to oxidizing Glucose molecule in the process of respiration while the remaining 60 percent is lost as heat energy which is responsible for the generation of high body temperature. One molecule of glucose produces four molecules of ATP, two molecules of NADH, and two molecules of pyruvate during the first stage of respiration known as glycolysis while in the end of respiration process only ATP, carbondioxide gas and water is produced.
what is mitosis can do
Answer:
The purposes of mitosis are : cell renewal. repair of injuries. asexual reproduction. growth of organisms.
Explanation:
The purpose of mitosis is cell restoration, growth, and asexual reproduction, while the persistence of meiosis is the generation of gametes for sexual reproduction.
The adaptive traits that allowed for plant transition to land include
Select one:
O A. ability to photosynthesize
O B. waxy cuticle with stomata
n
O C. chlorophyll
1
O D. pollen grain
46
Answer:
Explanation:
a water-repellent cuticle, stomata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, sexual organs
Which of the following is not a factor in creating hurricane storm surge?High waves
Heavy rain fall
Low air pressure
High wind
High air pressure
Answer:
I am not sure but I think it is high air pressure and high waves hope it helps
Answer:
high air pressure and high waves
Explanation: