Answer:
True
Explanation:
Under what circumstances can twins be born in humans?
Where are the most reactive nonmetal elements found on the periodic table? at the top of group 17 at the bottom of group 17 at the top of group 18 at the bottom of group 18
Answer:
A
Explanation:
Correct on edge 2021
The concentration of the solute in the solution is lower than the concentration inside the cell
When a cell is placed in this solution, more water enters the cell than it leaves it
The concentration of the solute in the solution is higher than the concentration inside the cell
The concentration of the solute in the solution is the same as in the cell
Causes water to move across the cell membrane
Causes a cell to swell
When a cell is placed in this solution, more water will leave the cell than it enters it
Doesn’t change the shape of a cell as the same amount of water enters and leaves the cell
Hypotonic Solution
Isotonic Solution
Hypertonic Solution
Answer:
n The Diary of Anne Frank, the conflict between Peter and Mr. Dussel about Mr. Dussel’s unkind words to Peter’s mother supports the theme that
wartime often brings out the worst in people.
children always tend to defend their parents.
difficult times tend to tear friendships apart.
people are not always as they appear to be.
Explanation:
n The Diary of Anne Frank, the conflict between Peter and Mr. Dussel about Mr. Dussel’s unkind words to Peter’s mother supports the theme that
wartime often brings out the worst in people.
children always tend to defend their parents.
difficult times tend to tear friendships apart.
people are not always as they appear to be.
Explain convection in earths mantle
Answer:
Mantle convection is the very slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
Explanation:
Where can you find the human sex chromosomes in a karyotype
Answer: According to international conventions, human autosomes, or non-sex chromosomes, are numbered from 1 to 22, in descending order by size, with the exceptions of chromosomes 21 and 22, the former actually being the smallest autosome. The sex chromosomes are generally placed at the end of a karyogram.
What are some advantages of asexual reproduction when compared to sexual reproduction? (In your own words please for brainliest!!)
Answer And Explanation:
The advantages of asexual reproduction compared to sexual reproduction include the population being able to increase rapidly when the conditions are in their favour, only one parent is needed, it is more time and energy-efficient due to not needing a mate and it is faster than sexual reproduction.
4
A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into ag
mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. W
macromolecule groups is this liquid most likely to be a member of?
O A. carbohydrates
ОВ. nucleic acids
OC. lipids
OD proteins Reset Submit
Answer:
Lipids!
Explanation:
Lipids are made up of Oils that, when mixed in water or other chemicals, will separate. Since Oils do not mix and float to the top, and since Oils are a type of lipid, the answer is Lipids!
Scientist observed an organism X and noted down the mode of nutrition as follows X secretes enzymes outside its body and digests food with these enzymes. It then absorbs the digested food. Which organism was observed by the scientist?
Answer:
Hydra
Explanation:
The mode of nutrition being described in this question is EXTRACELLULAR DIGESTION, in which a food substance is chemically broken down externally. The organisms being portrayed is HYDRA. Hydra is an animal that secretes digestive enzymes that work on the food extracellularly (outside the organism), then absorb the digested food.
Therefore, the organism X observed by the scientist whose mode of nutrition is to secrete enzymes outside its body and digests food with these enzymes, then absorbs the digested food is the HYDRA.
Plant cells have a square shape
True or False
In the Picture above.
Answer:
A fossil fuels
Explanation:
fossil fuels are Americas biggest energy producers we use things like coal, natural gas, and petroleum
Describe the relationship between ATP and ADP molecules
Answer:
If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. ... When it's run down, it's ADP.
Hope this helped!!
How does the process of gel electrophoresis produce DNA fingerprints? An electric current sorts DNA nucleotides according to their bases. O An electric current cuts a DNA strand into segments of various lengths O An electric current causes segments of DNA to move at different rates O An electric current supplies a charge to uncharged segments of DNA
Answer:
Gel electrophoresis
Explanation:
Gel electrophoresis is a technique used to separate DNA fragments according to their size. DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.
Where does the carbon used to make glucose come from?
.
Answer:
answer should be "carbon dioxide"
sorry if I’m wrong! Hope it helped
Fruit flies have 3 chromosomes plus sex chromosomes (X and Y). Mutations occurred within four different cells of an
individual female fruit fly as shown in the table below.
Which of these mutations could be passed on to the offspring of this fruit fly?
Group of answer choices
yellow body
leg-shaped antennae
curly wings
absent eyes
Answer:
Its either curly wings or yellow body
Explanation:
2. When calculating the recombinant frequency of two genes, what is
the most important factor?
O A. how close they are to each other
OB. how close they are to the end of the chromosome
Oc. whether they are on the X or Y chromosome
OD. which one is higher on the chromosome
Answer:
A
Explanation:
The most important factor is how close they are to each other.
• The physical swapping of the pieces of chromosomes at the time of meiosis is responsible for the recombination of genes.
• The swapping can take place anywhere along the length of the chromosome, that is, in any part of the gene.
• The recombination frequency between the two genes is equivalent to the ratio of offspring in which the event of recombination took place between the two genes at the time of meiosis.
• The determination of the recombination frequency is done by the frequency of the recombination events between the two genes in meiosis.
• The more the physical distance between the two genes, the more is the probability that the recombination take place during any meiosis event.
Thus, the correct answer is option A.
To know more about:
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Please HELP :((
In Rabbits, black fur (B) is dominant to white (b), and long ears (E) are dominant to short ears (e). What is the expected phenotypic ratio of the offspring of a BBee x bbEE cross if these alleles sort independently?
Answer:
A. 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears
Explanation:
This question is a typical dihybrid cross i.e. involving two genes in rabbits. One coding for fur color and the other for ear length. The allele for black fur (B) is dominant to allele for white fur (b) and allele for long ear (E) is dominant to alelle for short ear (e).
In this question, a cross between two rabbits with genotypes: BBee x bbEE is performed. The following combination of gametes will be produced by each rabbit:
BBee - Be, Be, Be, and Be
bbEE - bE, bE, bE, and bE
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
All BbEe offsprings, which have a black fur and long ear phenotype.
Hence, the phenotypic ratio is 16 black/long ears, 0 black/short ears, 0 White/long ears, 0 White/short ears
What is the definition of a gene?
The only difference in the chemical structure of DNA between various organisms is---
the number of nucleotides present
the order of base pairs
the variety of bases
the number of bases in a codon
Answer: the order of base pairs
Explanation: i took this quiz lol
l
The only difference in the chemical structure of DNA between various organisms is the order of base pairs that is present in the second option. The order of base pairs is different in different organisms.
What is the base-pair role present in the DNA?There are two DNA strands in double-helical DNA that are linked together by hydrogen bonds, such as adenine's double hydrogen bond with thymine and guanine's triple bond with cytosine. All the organisms that belong to different species have the same bases and same nucleotides, such as ATP, GTP, CTP, and TTP, but the base pair order is different, and that makes them unique. The gene having some specific sequences in an animal is different from the gene of another animal, and this is due to the various base pairs in the DNA.
Hence, the only difference in the chemical structure of DNA between various organisms is the order of base pairs that is present in the second option.
Learn more about the base pair in DNA here.
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How many atoms does the formula Mg3(PO4)2 have?
Answer: time all the number together and you will got it.
Explanation:
Question 1
Which of the students' observations will be most helpful in classifying a cell as either prokaryotic or eukaryotic?
Answer:
Explanation:
I can't answer this because there are no options given
Do you feel stem cell research is important? Explain.
4 sentences.
Given their unique regenerative abilities, stem cells offer new potentials for treating diseases such as diabetes, and heart disease. Research on stem cells continues to advance knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms.
Yes. Without stem cell research there would be alot more sick people. There would be alot more sick people because Stem-cell research is an area of research that studies the properties of stem cells and their potential use in medicine. As stem cells are the source of all tissues, understanding their properties helps in our understanding of the healthy and diseased body's developmental and homeostasis. Stem cells originate from two main sources: adult body tissues and embryos.
could I plz get brainliest
BRAINLIEST IF CORRECT 50 POINTS
Which best describes the sporophyte of a tree?
It is very small and is not seen
It is the dominant plant.
It becomes the seed.
It produces the egg and the sperm.
Answer:
The last answer (It produces the egg and the sperm)
please help!! which diagram best illustrates the relationship between the number of cells,tissues and organs in a complex multicellular organism
Answer:
D
Explanation:
...................
which zone contains permable materials that are totally fixed with water
its not that hard 20 points! im just too lazy
Ferns have _____.
A.nonvascular tissue and no seeds
B.vascular tissue and no seeds
C.nonvascular tissue and seeds
D.vascular tissue and seeds
Answer:
I think the answer is gonna be b
Answer:
B
Explanation:
it is correct because I did it
Plz help im desprate
Please answer the photo is above thank you.
Answer: the first box is recessive, other three are dominant. the first and third of the second row are heterogeneous and the second and fourth are homogeneous. first and fourth one of the third row are homogeneous dominant, the second one is heterogeneous, the third one is homogeneous recessive. of the fourth row, it goes; purple, purple and white, and white. for the last question the possible genotypes are BB, BB on top, Bb, Bb, on bottom. The phenotype can be black and grey or black and black and white spotted. the percent chance is 50% for both and 1:1
Explanation:
The basis for the energy in an ecosystem is provided by?
Answer:
Producers
Explanation:
Answer:
Producers
Explanation: Hope this helps!
Arecent study has shown an increase in the number of predators in an ecosystem. Which of the following is a possible
cause for the growth?
A) a decrease in the land space available
B) an increase in the population of prey it feeds on
C) a decrease in the biodiversity of the ecosystem
D) an increase in the number of predators that feed on it
E) an increase in the plant life in the ecosystem
PLS HELP ASAP
Answer:
The correct answer would be - B) an increase in the population of prey it feeds on.
Explanation:
In an ecosystem, if there is an increase in the number of predators there are several possible conditions behind it. The most suitable and important factor that can lead to this is an increase of prey they rely on.
If there is an increase in numbers of prey in the particular ecosystem then there would be more food and resources for predators which help in growing the development of predators.
Answer:
The correct answer is D. on EDGE
Explanation:
10. What do limiting factors control?
A.the size of an organism
B.the size of an ecosystem
C.the size of a habitat
D.the size of a population
Answer:
D.the size of a population
Explanation:
Hope I am right