Answer:
option C. all of these.
Explanation:
The main sequence period is when a star will experience the majority of its life. Helium is currently being created via nuclear fusion from hydrogen. Thus, option C is correct.
What is a complete cycle of a particular star?The main sequence phase, which our Sun is in, will be entered by the star if it is large enough to fuse hydrogen atoms into helium.
The mass of a star determines its life span. The life cycle of an object decreases with increasing mass.
The amount of substance present in a star's nebula, the enormous cloud of gas and dust from which it emerged, determines the star's mass.
The temperature and pressure rise when the material compresses, just as they do during formation. The freshly created heat briefly overcomes the effect of gravity, pushing the star's outer layers outward.
Therefore, As a star goes through this cycle their luminosity, brightness, temperature changes.
Learn more about stars here:
https://brainly.com/question/15301650
#SPJ6
A man with blood type A, whose mother was type o, has a child with a woman that has type AB blood. Which blood
types are possible in their children?
Answer:
Ab a o
Explanation:
A man with blood type A, whose mother was type o, has a child with a woman that has type AB blood. Which blood
types are possible in their children AB, a, O.
What is ABO blood grouping ?The blood grouping can be defined by the presence of surface antigens in the red blood cell which are A and B. The gene present on the parent chromosome can determine the blood group.
Blood type A represents to the presence of gene A, and its genotypic expression can be A/A or A/O.
Type B blood group where genotype is represented as B/B or B/O, is due to the presence of a gene containing the B antigen.
AB blood group which is codominant- has one gene for A and another for B, with genotype A/B.
Blood type O is mainly characterized by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O.
For more details regarding blood group, visit
brainly.com/question/2645377
#SPJ2
Artificial selection has produced a wide variety of crop plants, livestock, and pets. Which characteristic of artificial selection makes it different from natural selection
Answer:
Genetic Problems
Explanation:
When people genetically modify animals, they can mess up a lot of their natural abilities. For example in some cases scientist have made cows who produce more milk, but couldn't reproduce anymore because of it. Sometimes it even hurts the animal. People have bred dogs in certain ways that makes it hard for them to breathe, like Bull dogs who has respiratory issues. This makes decreases their life span and continuing to bred them will only make it worse. When scientist have a certain trait they want they also make animals breed with their own families. Incest creates a lot of genetic problems.
I hope this helped.
Which of the following is the type of cell division by which somatic cells divide?
Meiosis
Mitosis
Oogenesis
Spermatogenesis
the five pairs of ribs that do not
attach directly to the sternum
Answer: the false ribs. Which are the lower ribs.
Explanation:
The macromolecule provides long term energy, insulation, and makes up the cell membrane
Answer: Lipids
Explanation: These are just characteristics of lipids I would recommend memorizing :)
Different between larva and pupa of silkmoth??
Answer:
The larva stage of skilworm is a worm-like creature that emerges from the egg, the first life stage. And the pupa stage of silkworm is the sedentary, transformative form following the larval stage
Using the graphs above which statement is FALSE?
Answer:
Where is the graph
Explanation:
Sorry for asking ,but there is no graph
I will give brailiest for the first person who get this question correct.
Which airline has that logo?
A) Pepsi airlines
B) Korean airlines
C) Indian airlines
D) Arabian airlines
Answer:
The answer is B: Korean Airlines
Explanation:
Answer:
B) Korean airlines
Explanation:
How does thermometer work?
Answer:
for it to check for a fever there should be a button there and there different types so you can hold it against your forehead or there is one you but under your tongue or armpit.
Explanation:
but for check how hot food is just shove it in the food
what is a consumer and producer and how do the two work together to help are environments?
Answer:Through a process called photosynthesis, producers capture energy from the sun and use it to create simple organic molecules, which they use for food. Consumers constitute the upper trophic levels. Unlike producers, they cannot make their own food. To get energy, they eat plants or other animals, while some eat both.
Explanation:
plz make brainliest
The interaction between genes and development in behavior is known as:
A. extrinsic-intrinsic
B. Nature-nurture
C. gene environment
D. Developmental interaction
Answer:
B. Nature-nurture
Explanation:
genes = nature
development = nurture
_ Which three statements correctly describe the roles or RNA molecules in the process of transcription and translation in animal cells?
a. Small RNA molecules in the RNA polymerase catalyze the formation of phosphodiester bonds between nucleotides in the growing messenger RNA
b. Messenger RNA molecules carry genetic information from the gene in the nucleus to the ribosome in the cytoplasm.
c. Transfer RNA molecules carry the appropriate amino acid to the growing polypeptide
d. Genomic RNA molecules store genetic information and transmit it to an individual’s offspring
e. Ribosomal RNA molecules function in the assembly of the ribosome-mRNA complex and in the formation of peptide bonds between amino acids in the growing polypeptide.
The three statements that correctly describes the role of RNA in transcription and translation are as follows:
Messenger RNA molecules carry genetic information from the gene in the nucleus to the ribosome in the cytoplasm.Transfer RNA molecules carry the appropriate amino acid to the growing polypeptide.Ribosomal RNA molecules function in the assembly of the ribosome-mRNA complex and in the formation of peptide bonds between amino acids in the growing polypeptide.ROLE OF RNA:
Transcription is the process whereby a mRNA molecule is synthesized from a DNA template while translation is the process whereby an amino acid sequence is synthesized from mRNA. Ribonucleic acid (RNA) is one of the two nucleic acids that performs varying functions in the processes of transcription and translation. There are three types of RNA namely: mRNA, tRNA, rRNA. mRNA or messenger RNA molecules carry genetic information from the gene in the nucleus to the ribosome in the cytoplasm.tRNA or transfer RNA molecules carry the appropriate amino acid to the growing polypeptide.rRNA or ribosomal RNA molecules function in the assembly of the ribosome-mRNA complex and in the formation of peptide bonds between amino acids in the growing polypeptide.Learn more: https://brainly.com/question/20123590?referrer=searchResults
1. Tell me if this is true or false. If it is false tell me why. "Cereal grains are an excellent
source of complex proteins."
Answer:
True
Explanation:
The most common cereal grains that are used is wheat, rice, oats, and corn. WHich can all be high in a protein called prolamins, including vitamin D&E, fiber, iron, and other nutrients.
Which is a commodity someone might invest in?
A commodity that someone would invest in would be tea, coffee, and wine. Some of the more popular items people usually think of as a commodity.
Hurry PLZ help will get 20 pts
Answer:
it definitely the last one
What did Avery conclude caused transformation?
a. DNA was the transforming factor.
b. A protein was the transforming factor.
c. A carbohydrate was the transforming factor.
d. A lipid was the transforming factor.
Answer:
The answer is B
Explanation:
Avery concluded that DNA was the transforming factor. Therefore, the correct option is A.
Based on his research from the 1940s, Avery came to the conclusion that DNA was modifying the organism. Avery, along with his colleagues Colin MacLeod and Macklin McCarty, worked through a series of carefully planned experiments to pinpoint the precise element responsible for the transmission of genetic information in bacteria.
They tried to identify the transforming factor by treating the heat-killed bacteria with various enzymes that specifically destroy various cellular components such as proteins, carbohydrates, RNA and DNA. When the scientists exposed the bacteria to DNase, an enzyme that selectively breaks down DNA, they made their breakthrough discovery. He observed that the ability to transmit genetic information was lost when DNA was damaged.
Therefore, the correct option is A.
Learn more about transforming factor, here:
https://brainly.com/question/13197638
#SPJ6
What is the polymer for amino acids
Answer:
Polypeptides. ;)
Explanation:
PLEASEEEEE HEALP ME DUE IN 15 MINUTES WILL GIVE BRAINIEST
A scientist used a radioactive isotope of nitrogen to label the nitrogenous bases of the DNA in a bacterial cell. The labeled cells were then allowed to grow and divide for one generation in a medium of non-radioactive nitrogen.
Describe how the distribution of radioactive DNA to the daughter cells provides evidence for semiconservative replication of the DNA molecule.
Answer:
D!
Explanation:
I Saw This Question Before! Good Luck On Your Test Thingy!
A trait that can possibly mask another trait i known as a ____trait.
Answer:
Dominant
Explanation:
Dominant traits mask recessive traits.
The point on earths surface where the earthquakes energy first occurs is the
Answer:the fault
Explanation:
I really need this answered really soon, because its for my exam, can someone please help meee?!?!?
What is the function of the bilayer of phospholipid macromolecules within a cell?
a.It allows the cell to fold itself into a double layer when placed in a polar environment.
b.It works together with the endoplasmic reticulum to transport materials through the cell.
c.It produces ribosomes which are the site location of protein synthesis.
d.It elongates the cell creating the stretchy physical characteristic of the cell.
Answer:
b. It works together with the endoplasmic reticulum to transport materials through the cell.
I feel that this is the correct answer. If wrong plz correct me!!
A huge carbon reservoir(place that stores carbon) is:
a. The soil
b.Animal Waste
c.Rocks
d.Oceans
Answer:
A
Explanation:
how is the kenetic energy of the particles that make up a substance different after it changes state
Is water wet? answer in complete answers
Answer:
Water isn't wet by itself, but it makes other materials wet when it sticks to the surface of them.
Which of the following organelles is in plant cells, but not animal cells ?
1. Nucleus
2. Endoplasmic reticulum
3. Chloroplasts
4. Cytoplasm
Answer:
Chloroplasts
Explanation:
Photosynthesis occurs in chloroplast . Plants do photosynthesis , so they have chloroplasts in their cells. But animals dont do photosynthesis , so they dont have it in their cells
can anyone please answer this question for me its almost the end of the day
ATP is the primary organic molecule that supplies energy to cells. What are the three main parts of an ATP molecule?
ATP(adenosinetriphosphate)
is made of:
nitrogenous base(adenine)sugar, a pentose called ribosethree phosphate groups20 pointss Radiation damage has hereditary effects if it:
alters the DNA is autosomes
alters the DNA in somatic cells
alters the DNA in gametes
changes proteins in the cytoplasm
Answer:
changes proteins in the cytoplasm
what would happen to the concentrations of pyruvate, NADH and intermembrane H* if the Krebs Cycle stopped working
Answer:
pyruvate - increase
NADH and intermembrane H* - decrease
Explanation:
Which organelles work together to maintain the needed amount of water in a cell
Answer: Vacuoles
Explanation:
Vacuoles are fluid-filled organelles used mainly as storage compartments. Depending on the cell type, they can hold things like enzymes, waste, food, and water.
