New combinations of DNA and genes can come from different sources in the
genetic material that is passed from parents to offspring.
Sources of genetic material can come from DNA replication in meiosis I,
errors during nondisjunction, in meiosis, and from environmental factors.
When these new combinations are passed on to offspring this increases
genetic diversity potentially, the species.
Remember, for a mutation to be passed on through sexual reproduction
(meiosis), the change to the DNA must be present in the gamete
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Help asap !!!! Which of these statements is true of the brightest stars? (1 point)
O They are yellow stars.
O Many are supergiants
O Several are white dwarfs.
O Each is part of the main sequence.
Answer:
Many are supergiants.
Explanation:
A star's size and core temperature determine its brightness. The brightest stars tend to be blue or blue white. Supergiants and red giants are in the region above the main sequence of stars, so that isn't true. Red are the dimmest. Yellow stars are in the middle of that spectrum. White Dwarfs are dimmer than the Sun, red giants and blue supergiants.
define the following terms:dispersion and refraction
Explanation:
Dispersion of light is the splitting of white light into its constituent colors due to the refractive index of the surface and the wavelength of the light. If the light entering the prism is not of a single colour then the emergent beam also has different colours arranged in a definite order.
In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.
can someone pls help me
Answer:
16. mitochondria
17. lysosomes
18. smooth Endoplasmic Reticulum
19. golgi body
20. golgi complex
Explanation:
16. Mitochondria are double membrane-bound cell organelles responsible for the supply and storage of energy for the cell
17. While cells mainly use lysosomes to dispose of trash. Sometimes they simply hang onto their trash, performing the cellular equivalent of sweeping it under the rug
18. Are the storage organelle, associated with the production of lipids, steroids, and also responsible for detoxifying the cell.
19. The Golgi body is the sorting organelle of the cell. Proteins are transported from the rough endoplasmic reticulum (RER) to the Golgi.
20. is responsible for sorting and correctly shipping the proteins produce the ER. Just like our postal packages, which should have a correct shipping address, the proteins produced in the ER should be correctly sent to their respective address. It is a very important step in protein synthesis.
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Hope this helps!!
If I am wrong, please tell me, I enjoy learning from my mistakes:)
−6 = b/ 18
i am having trouble doing this problem i dont understand it
Explanation:
-6 can only be changed by a negative so if -6=b/18 Question what is b? b=18 so it's actually or can be -6=b18
What is a nucleotide?
A) a monomer made of an adenosine triphosphate, a phosphate, and a sugar
B) a DNA segment
C) a monomer made of a 5-carbon sugar, a phosphate group, and a nitrogenous base
D) a polymer made of DNA and RNA
Explanation:
Nucleotides are organic molecules consisting of a nucleoside and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid and ribonucleic acid, both of which are essential biomolecules within all life-forms on Earth.
Which statement describes functions of anti bodies
Answer:
Explanation:
Antibodies have three main functions: 1) Antibodies are secreted into the blood and mucosa, where they bind to and inactivate foreign substances such as pathogens and toxins (neutralization). 2) Antibodies activate the complement system to destroy bacterial cells by lysis (punching holes in the cell wall).
Can anyone explain capillary action in the circulatory system in simple terms?
Please make me as brainlist
Capillary action is defined as the spontaneous flow of a liquid into a narrow tube or porous material.
What are the advantages of cell division using meiosis?
Answer:
the advantages of cell division using meiosis is that it allows for the expansion of new traits because of the process of crossing over.
Explanation:
hope this helps you!
HELP ME PLS AND THANKS I DON"T KNOW THIS
Answer:
B :)
Explanation:
Answer:
Dichotomous means divided into two parts. That is why dichotomous keys always give two choices in each step. In each step, the user is presented with two statements based on characteristics of the organism. If the user makes the correct choice every time, the name of the organism will be revealed at the end.
Therefore, your answer is A.
Hope this helps! (please pick as brainlyist)
Which of the following correctly describes the two phases of the cell cycle?
A. Cells grow and develop during interphase. Cells reproduce during the mitotic phase.
B. Cells grow and develop during the mitotic phase. Cells reproduce during the interphase.
C. The nucleus of a cell divides during interphase. The cytoplasm of a cell divides during mitotic phase.
D. The nucleus of a cell divides during mitotic phase. The cytoplasm of a cell divides during interphase.
Answer: the answer is A
Explanation:
Cell cycle refers to the series of processes that leads to the growth/development and division of a cell. The cell cycle uses MITOSIS for cell growth. Mitosis comprises of two distinct stages namely: INTERPHASE AND MITOTIC PHASE. The interphase is referred to as the resting phase of the cell in which the cell grows and develops.
On the other hand, MITOTIC PHASE is the stage where the actual division of the nucleus (karyokinesis) and cytoplasm (cytokinesis) generally called CELL DIVISION occurs. Therefore, the cell reproduces i.e. one cell forming two, in the mitotic phase.
retroviruses - Examples of RNA viruses are Cvid-19 or the virus that causes __
Answer:
The retrovirus known as human immunodeficiency virus (HIV) causes acquired immunodeficiency syndrome (AIDS) in humans.
Explanation:
which is a step in the process of producing transgenic bacteria
Answer:
DNA extraction is the first step in the genetic engineering process. In order to work with DNA, scientists must extract it from the desired organism.
The condition called ________ is especially dangerous because the ureters or renal blood vessels can become twisted or kinked during movement.
Answer:
floating kidney
Explanation:
examples of artificial permeable membranes
Answer:
kidney tissue
Explanation:
Flunking science need answers
If you push something out of someone’s hands, which law of motion is it?
Answer:
an applied force.
Explanation:
The electron transport process makes water and ATP and is sometimes called
because it requires oxygen.
Answer:
respiratory chain... hope that's right
you get 50 points if you can answer correctly please help
Which is the best description of a scientific theory?
A. a statement about how two different variables are related
B. a collection of laws that are explained the same way
c. an explanation of many observations and tested hypotheses
d. an accepted fact that has always been observed to be true
Answer:
c.an explanation of many observations and tested hypotheses
Explanation:
Give me brainlist please
What is the equation for a photosynthesis???????????????
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6CO2 + 6H2O → C6H12O6 + 6O2.The equation for photosynthesis is given as:
6CO₂ + 6H₂O ----> C₆H₁₂O₆ + 6O₂
PhotosynthesisPhotosynthesis is the process by which green plants manufacture their food from carbon dioxide and water in the atmosphere using sunlight as an energy source.
Carbohydrates are produced while oxygen is given off as a by-product in photosynthesis.
During photosynthesis, the energy from the sunlight is trapped by the chlorophyll found in the chloroplast and used to energize the reactions involved in photosynthesis.
The equation for photosynthesis is given as:
6CO₂ + 6H₂O ----> C₆H₁₂O₆ + 6O₂
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Which classification of teeth is when they are chisel shaped and exert a shearing action used in biting
Answer:
Incisors
Explanation:
explain how carbon dioxide is cycled between the tree and fox. name the specific processes involved.
Answer:
When the fox takes in the oxygen and throws out carbon dioxide as a waste material than the tree also takes in carbondioxide and throws out oxygen as an waste material than look at the interrelationship between the two living organisms.
raising government spending and cutting taxes can prevent?
Explanation:
A reduction in taxes will leave more disposable income and cause consumption and savings to increase,
I think it will help you
Which three terms could be used to identify the carbon (c) in this chemical equation
Answer:
element product atom
Explanation:
What organs help to complete digestion in the small intestine?
Answer:
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion.
How does energy flow in an ecosystem
Answer:
Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.Hope this helps you !!What releases enzymes to digest molecules outside of a cell
Answer: Lysosomes
Explanation:
The answer is Lysosomes
Glycolysis requires an input of energy. What molecule provides this energy?
Answer:
Glycolysis is actually a series of ten chemical reactions that requires the input of two ATP molecules. This input is used to generate four new ATP molecules, which means that glycolysis results in a net gain of two ATPs.
Explanation:
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how can you tell if an earthquake has occurred?
Scientists can examine sediment samples to get an idea of when major earthquakes occurred in the past. By measuring the amount of time between events, they can come up with a rough idea of when a major quake might hit.
which organism has a central brain
1 hydra
2 sponge
3 flatworm
4 fish
ASAAAPPPPP
Answer: flatworm
Explanation:
a signal molecule which can bind to an enzyme and shut down its activity by altering the shape of the enzyme.
Answer:
Enzyme inhibitor
Explanation:
An enzyme inhibitor is a molecule that binds to an enzyme and decreases its activity. By binding to enzymes' active sites, inhibitors reduce the compatibility of substrate and enzyme and this leads to the inhibition of Enzyme-Substrate complexes' formation, preventing the catalysis of reactions and decreasing the amount of product produced by a reaction.