Explanation:
A would be the correct answer
HELP!!!! 50PTS!!!!!!
When some organic molecules, such as lipids, are added to water, vesicles can form. Which of the following best describes how scientists hypothesize true cells evolved from vesicles? (3 points)
Vesicles became enclosed by a membrane, thus becoming organelles for larger cells.
Vesicles containing amino acids fused to form nucleotides, RNA, and DNA.
Vesicles surrounded organic compounds and catalyzed reactions to form macromolecules.
Vesicles that contained self-replicating RNA grew, split, and passed their RNA to daughters.
Answer:
DNA can store genetic information and most likely appeared before RNA.
Explanation:
Answer:
Vesicles that contained self-replicating RNA grew, split, and passed their RNA to daughters.
Explanation:
RNA played role in protein synthesis and also created its own catalyst.
A population of lizards carry a gene for scale color in which the dominant allele produces green scales while the recessive allele codes for brown scales. In the first generation, you determine that 75% of the population is green and 25% of the population is brown. In the second generation, you determine that 50% of the population is green and 50% of the population is brown. Finally, in the third generation, you determine that 25% of the population is green and 75% of the population is brown. Which of the following correctly explains this change in the genotype frequencies?(1 point)
The lizards mate randomly with each other.
The brown color is an adaptation that is being selected by the environment.
The lizards remain isolated from other lizards, only mating with lizards in their own population.
The DNA of these lizards carries no mutations from one generation to the next.
Answer:
1) There are no mutations in the DNA of the population.
2) The brown color is an adaptation that is being selected by the environment.
3) The number of individuals displaying each phenotype in both the current generation and the offspring.
4)The recessive phenotype in this population may serve as an adaptation in this environment.
5) A population of flies that maintains a population size of at least 1 million individuals.
Explanation:
just took the test (connexus student)
Correct answers are :
No mutations in the DNA.The brown color is an adaptation.individuals displaying current generation, offspring.Rcessive phenotype adaptation.Flies population has a size of at least 1 mn.What is a genotype?A genotype is a set of genetic material that characterize an organism and is also used or refer to the allies or the variant of that individual that carries genetic material.
The population of lizards has a gene for scale color that is a domain allele. The brown color is due to the adaptation of the species.
Find out more information about the population.
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What is the connection between work and power? Name three
Answer:
Work is the energy needed to apply a force to move an object a particular distance, where force is parallel to the displacement. Power is the rate at which that work is done.
Explanation:
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they both have authority
they both are very common
they both are normally taken by serious people
The principal is in desperate need of a blood transfusion but unfortunately has the rare blood type () and
needs a donor that is also O. He offers a reward to anyone who could help him. The vice principal knows
unfortunately that his blood type is heterozygous type A and that his wife is heterozygous type B. What is
the probability that one of their children will have the blood type to match the principal?
Answer:
The answer should be C
Explanation:
The presence of which magnetic feature best explains why a magnet can act at a distance on other magnets or on objects containing certain metals?
O fields
O dipoles
O domains
O forces
Answer:
Option: A) fields
Explanation:
Answer: A) Fields
Explanation:
I just took the test.
which is a primary function of a vacuole in a cell
Answer:
The primary function of a vacuole is that it can store water and food.
Explanation:
Answer:
A vacuole is a membrane bound cell organelle
the function of vacuoles is to maintain water balance and for storage of something
the size of vacuoles in plant cell is very big it takes more than half of the cell but in animals very small
hope it helps
In the early stages of development, the embryos of dogs, pigs, and humans resemble one
another. This observation suggests that these animals may have
A)a common ancestry.
B)a similar number of chromosomes.
C)a similar habitat requirements.
D)the same blood components.
Answer:
a common ancestry.
Explanation:
In what way does the human digestive system primarily interact with the human circulatory system? A. The digestive system breaks food down into nutrients that can be distributed to the body through the circulatory system. B. The circulatory system supplies the digestive system with nutrients while the digestive system supplies the circulatory system with blood. C. The digestive system filters wastes out of blood found in the circulatory system. D. The circulatory system is an open system whereas the digestive system is a closed system.
Answer:
The digestive system breaks food down into nutrients that can be distributed to the body through the circulatory system.
Explanation:
Which of the following is a true statement about the physical properties of objects that are composed of the same matter?
Answer:
D. All of the above
Explanation:
Matter is a substance which has mass and takes up space by volume the properties of matter are,
States of matter (solid,liquid,gas)are inter convertable.
Force of attraction varies from one kind of matter to another.
States of matter can be varied by varying temperature and pressure.
I need help :(?An animal with radial
symmetry will have body
parts that extend
outward from a center
area. An animal with
bilateral symmetry has a
right and left side that
are mirror images of
each other.
Draw a single plane to
divide the bilateral
symmetry animal, and
draw three lines that
each divide the radial
symmetry animal
What do you mean by anaemia?
Answer:
Anemia is a condition in which you lack enough healthy red blood cells to carry adequate oxygen to your body's tissues.
Explanation:
It is defined as a low number of red blood cells. In a routine blood test, anemia is reported as a low hemoglobin or hematocrit.
why is taking action for global warming important? please help
Answer: Global warming will cause significant harm to the health of persons and their communities by compromising food and water supplies; increasing risks of morbidity and mortality from infectious diseases and heat stress; changing social determinants of health resulting from extreme weather events, rising sea levels,
Scientists are monitoring the pH of oceans. Which of these are they most likely studying?
A. the population of polar bears
B. the health of coral colonies
C. the level of carbon dioxide in the air
D. the rise of sea level
Answer:
B. the health of coral colonies
Explanation:
Answer:
ANSWER is B , The health of coral colonies
How many molecules is 9.34 moles of AgCI
Answer:
Number of molecules= 9.34 * 6.022*10^23 = 5.6245*10^24 molecules.
Explanation:
In around 50 years, the peppered moth population changed from nearly all light wings to nearly all dark wings. Explain exactly how the moth population changed (evolved).
Answer:
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. ... Later, when pollution was reduced, the light-coloured form again predominated.
Your best friend is concerned about a mole on her arm. Knowing that you are taking a biology class she comes to you and asks for your opinion. You take a sample of her mole and view it under a microscope. While counting a selection of 300 cells, you notice that 87 cells are actively undergoing mitosis. Should your friend be concerned?
Answer:
She should consult a dermatologist immediately.
Explanation:
When doing preemptive diagnosis of a mole, one should compute the Mitotic Rate (MR) - and the MR reported in the question is way above the highest category "greater than 4 per square millimeter" (to compare. there's around 2000 cells per sqmm of skin, so we're at over 500 per square millimeter).
If the DNA strand is AGT, translate the mRNA codon and find the correct amino acid.
Hint: Use your matching base pairs to translate into mRNA
A. Tryptophan
B. Serine
C. Stop
D. Valine
Answer:
B. Serine
Explanation:
Hope this helps
Answer:
B. Serine
Explanation:
The serine is the required amino acid. So, option (B) is the correct answer.
Which Gas Giant is farthest from the sun?
Answer:
Neptune
Explanation:
Answer:
Neptune
Explanation:
For about 20 years of every 250 years, Neptune is the FARTHEST planet in our solar system. NEPTUNE sometimes switches places with Pluto as the planet in our solar system farthest from the Sun.
hope this helps:)
Ecological succession usually includes changes in all of the following EXCEPT-
A. The number of different kinds of plants
B. The number of plants of any one species
C. The overall size of the dominant plants
D. The rate at which species produce offspring
Answer: its d i just took the test
Explanation:
Ecological succession usually includes change EXCEPT for the option" A" which is the number of different kinds of plants.
What is Ecological succession?Ecological succession is the process that describes how the structure of a biological community (that is, an interacting group of various species in a desert, forest, grassland, marine environment, and so on) changes over time.
Thus, according to ecological succession, the number of different kinds of plants.
To learn more about ecological succession click here:
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What factors do you need to know in order to calculate a region's population growth
dose DNA have cells
i need to know for a assingment
Answer and Explanation:
Cells are made of DNA (Deoxyribonucleic Acid).
They provide the genetic instructions for making and forming a cell.
The DNA is found inside the nucleus of the cell.
Because the cell is very small, and because organisms have many DNA molecules per cell, each DNA molecule must be tightly packaged. This packaged form of the DNA is called a chromosome
DNA do NOT have cells, but cells DO have DNA.
#teamtrees #PAW (Plant And Water)
what is the possible liminations of using hair as evidence in crime investgation s\
Answer:
A limitation of using hair as evidence from a crime scene is that hair can not be directly linked to a suspect. It is impossible to say that a hair sample came from only one specific person.
Answer:
How it got there. Anyone's hair can be carried and blown from anywhere, if so you'd have to go through every persons dna that had contact with a victim and contact with the contactie and so on and so on.
2. If you use the letter E for this
gene. What is the genotype of
the offspring if the parents were
EE хее
3. If you crossed the offspring
with each other? How many of the new offspring would you expect to have two eyes?
Answer:
2. Genotypes of offspring - Ee
3. Genotypes:
EE
Ee
Ee
ee
Explanation:
For 3. i wouldn't know how many of the offspring will have two eyes because we don't know what trait E is and what e is, but the genotypes will help you figure it out.
Muscles cannot function without ATP. Review your knowledge of ATP by answering the followini
questions.
ATP molecules store and release_____.
Answer:
energy
Explanation:
hope it helps.
Answer:
ATP molecules store and release energy.
Energy is released when ✔phosphate bonds are broken.
edge ✅⬇️
Complete el cuadro de Punnett que muestra un cruce entre un hombre que es heterocigoto para el tipo de sangre B y una mujer que es heterocigota para el tipo de sangre A.
Answer:
F1) 1/4 = 25% de la porgenie será AB, IAIB
1/4 = 25% de la progenie será heterocigota para el tipo A, IAi
1/4 = 25% de la progenie será heterocigota para el gruo B, IBi
1/4 = 25% de la progenie será homocigota recesiva, ii
Explanation:
El gen I determina el tipo de sangre de una persona. Es un gen dialelico que muestra alelo dominante I y recesivo I. En personas de tipo A, los alelos son IA dominante, i recesivo.En personas de tipo B, los alelos son IB dominante, i recesivoIA e IB son codomiantes entre si, lo que signofica que hay un tercer fenotypo IAIB, expresando ambos tipos de sangre juntos. El alelo i es recesivo siempre.Genotipo A:
IAIA, Homocigota dominanteIAi, Heterocigotaii homocigota recesivoGenotipo B:
IBIB, Homocigota dominanteIBi, Heterocigotaii homocigota recesivoGenotipo AB:
IAIB, Homocigota dominanteCruza: un hombre que es heterocigoto para el tipo de sangre B con una
mujer que es heterocigota para el tipo de sangre A
Parentales) IBi x IAi
Gametos) IB i IA i
Cuadro de Punnett)
IB i
IA IAIB IAi
i IBi ii
F1) 1/4 = 25% de la porgenie será AB, IAIB
1/4 = 25% de la progenie será heterocigota para el tipo A, IAi
1/4 = 25% de la progenie será heterocigota para el gruo B, IBi
1/4 = 25% de la progenie será homocigota recesiva, ii
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I NEED HELP ASAP!!!
Answer:
pretty sure it's A
Explanation:
Haven't taken the assessment personally but I do think that it's bringing emphasis to the extinction rate
*
Cellular Respiration is an_____
process,
a.Metabolic
b.Catabolie
c.Anabelle
d.Exergenic
If a mosquito cell had 3 chromosomes, would that cell be a diploid or haploid?
Answer:
If the cell had 3 chromosomes, it would be haploid.
Match the following.
1. any substance that kills germs
2. drugs that attack specific bacteria
3. substance that attacks fungi
4. chemical that destroys pathogens inside the body
antibiotics
germicide
anti-infective
antifungal agents
Explanation:
1. any substance that kills germs
ans. germicide
2. drugs that attack specific bacteria
ans. antibiotics
3. substance that attacks fungi
ans. antifungal agents
4. chemical that destroyed pathogens inside the body
ans. anti-infective