Answers
Answer:
your answer is c
Explanation: the sun is a middle sized star that is average compared to most stars the sun is a yellow/white star wich are uncommon in the gallaxy but can be found in about 40% and under the most common is red dwarfs which take up about 70%
Related Questions
What does hydroelectric power do?
A.) causes thermal pollution
B.) requires building dams that can harm ecosystems
C.) uses the energy inside an atom's nucleus to generate electricity
D.) releases carbon dioxide into the air
Answers
Answer:
a 100 on the test
Explanation:
Answer:
C.)
Uses the energy inside an atom's nucleus to generate electricity
Explanation:
Flowing water creates energy that can be captured and turned into electricity. This is called hydroelectric power or hydropower. The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir.
What evidence in Courtney's data would most likely lead her to change the way she is conducting her study?
Answers
Answer: Her times at lunch were always faster, no matter what type of meal she ate.
Explanation:
Select the correct answer.
Wanda owns a dog. She takes the dog for a routine examination to her veterinarian. The veterinarian tells her that her dog's kneecap is not
properly centered over the knee. Which disorder does this indicate?
OA.
osteoarthritis
OB. cruciate ligament disease
OC. patellar luxation
OD. hip dysplasia
Answers
Answer:
d
Explanation:
Answer:
patellar luxation
Explanation:
I got it correct on edmentum
Which factors were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection?
(1 point)
1. a change in the diet of human populations as they settled in colder climates
2. the clothing worn by humans in the early 8th century
3.the interaction of human populations with predators in colder climates
4.the impact of UV radiation on folate and Vitamin D levels in human populations
Answers
Answer: The answer is 4
Explanation:
Vitamin D controls your skin pigment. It's kind of like when someone has an iron deficiency they get bruises and they turn a whiter shade.
Hope I helped :)
The factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection are the impact of UV radiation on folate and Vitamin D levels in human populations.
Ultraviolet B radiation produces diet D in human skin. Ultraviolet radiation can, however, smash folate. Folate is critical for the speedy increase of cells, particularly at some point in which its deficiency can motivate neural tube defects. The human frame additionally has a mechanism to save you overproduction of vitamins.
What is UV radiation?Ultraviolet is a shape of electromagnetic radiation with a wavelength from 10 nm to four hundred nm, shorter than that of seen light, but longer than X-rays. UV radiation is found in sunlight and constitutes approximately 10% of the whole electromagnetic radiation output from the Sun.
Thus it is learned that the above answers are well-explained factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection bout.
To learn more about natural selection refer to the link :
https://brainly.com/question/23929271
what is the best way to add more wolves and bees into a park?
Answers
Which of the following statements about lichens are true?
Answers
Answer:
The photobiont supplies the association organic carbon from photosynthesis, and the mycobiont ensures protection and regulates the supply of minerals and water. The nutritional exchange between partners is probably much more complex than exchange of water and minerals for organic carbon. Thus, the correct answer is option B.
Answer:juegan maincra
Explanation:porque si
The first organisms arose from non-living molecules found on early earth. Which theory best describes how
this organism arose?
natural selection
abiogenesis
biogenesis
variation
Answers
Answer:
abiogenesis
Explanation:
a (not) biogenesis (coming from other life forms)
Biogenesis would mean that it's coming from other life forms,
Natural selection is a part of evolution (what is there to select?)
Variation is also a part of evolution (not related)
Contrast mechanical and chemical digestion.
Answers
Answer:
Chemical and mechanical digestion are the two methods your body uses to break down foods. Mechanical digestion involves physical movement to make foods smaller. Chemical digestion uses enzymes to break down food.
Explanation:
Answer:
While mechanical digestion involves physical movements, such as chewing and muscle contractions, chemical digestion uses enzymes to break down food
Explanation:
what's the meaning of life if the end goal is death
Answers
Answer:
Some biology scientists believe life is all about sex and not dying, but it's not that simple.
Explanation:
Life is but a short period of time in this world, and the purpose of life is mainly to enjoy yourself while you live, live life to its fullest. But even better, to help shape a different world in which other people will benefit. You might only live for a few weeks, maybe 100 years, but you should do what you can in your life, help the community, and be proud of what you've accomplished within this world.
the meaning of life is very hard to explain knowing that one day u will die. but thats ,why its so amazing not knowing what the future holds life is a creation just like a flower is bloom to its fully grown think of that has all the accomplishments you have made and the downfalls. they all shape you and you shape yourself to be what you want to be life is your diary u make it how you want the end goal is death sadly but we die with a sense we changed a person a someones life we learned more then the next. life is a creation
HIV replication requires conversion of the genomic RNA present in the infecting virus to a double stranded DNA that integrates into a human chromosome. Unlike DNA polymerase, HIV reverse transcriptase catalyzes DNA chain elongation from either a DNA or RNA template. Azidothymidine (AZT) was the first effective drug used to inhibit HIV reverse transcriptase and went into clinical use in 1987 to treat AIDS. What best describes how AZT inhibits reverse transcriptase
Answers
Answer:
AZT inhibits reverse transcriptase enzyme.
Explanation:
AZT inhibits reverse transcriptase enzyme that is used by the virus to make a DNA copy of its RNA. This Azidothymidine prevent reverse transcriptase enzyme from doing its function properly. Due to absence of this enzyme, the HIV virus is unable to make copies of its DNA and this Azidothymidine stops the life cycle of the virus and slows the growth of AIDS disease so that's why this drug was considered effective against HIV virus and used in the treatment of AIDS disease.
Lymph capillaries Lymph capillaries filter lymph. originate as closed-ended tubes associated with blood capillary networks. cannot be discerned structurally from cardiovascular system capillaries. include layers of smooth muscle for peristalsis. concentrate lymph prior to passing it to larger lymphatic vessels.
Answers
Answer:
The correct answer is ''originate as closed-ended tubes associated with blood capillary networks.''
Explanation:
The lymphatic vessel system begins within the tissues in the form of tubes closed at one end called lymphatic capillaries (chyliferous in the intestine). These have an internal endothelial lining, similar to that of blood capillaries. These vessels are found in greater numbers in the skin, the digestive tract, and the respiratory system. The tissue fluid penetrates the lymphatic capillaries by diffusion, with the help of a small indirect pressure gradient, which gives it the arterial pressure. The walls of the lymphatic capillaries offer little resistance to the entry of substances; they are more permeable than capillaries in the blood system. The tiny capillaries form larger vessels, similar to the venules and veins of the blood vessel system. The walls are thinner than those of the veins of the blood system and its valves much more numerous.
Which of the following causes genetic recombination? Select all that apply.
Multiple select question.
A)
independent assortment
B)
crossing over
C)
segregation
D)
alleles
Answers
Answer:
It's (B) crossing over and (D) alleles.
I hope it helps.
Explanation:
What are the closest astronomical bodies to earth?
Answers
Answer:
The Moon, Venus and Mars are the planets nearest to the Earth.
What human behavior was the cause of the Nipah virus outbreak in Bangladesh? How did scientists determine this?
Answers
Answer:
Humans drinking raw date palm sap was the cause of the Nipah virus outbreak in Bangladesh. Scientists found Nipah virus in bat excretions and discovered that bats were contaminating date palm juice with their excretions (saliva, urine).
Explanation:
Nipah virus can spread to people from:
1) Direct contact with infected animals, such as bats or pigs, or their body fluids (such as blood, urine or saliva).
2) Consuming food products that have been contaminated by body fluids of infected animals (such as palm sap or fruit contaminated by an infected bat).
HELPS ASAP!! How do the retinas of the eyes of night hunting amimals differ from the retinas of animals that hunt during the daytime.
They have more rod cells
They have fewer cone cells
They have more cone cells
They have fewer rod cells
Answers
The answer is they have more rod cells
Oil ____
a.) must be removed from the earth using drills
b.) can be used directly from the ground
c.) is a renewable resource
d.) is the least polluting energy source
Answers
Answer: The answer is a
Explanation:
Answer:
oil must be removed from the earth by using drills
Describe two types of tissues and the jobs they perform.
Answers
Answer:
Muscle tissue
Nervous tissue
Explanation:
It's a specialised tissue found in animals which functions by contracting thereby applying forces to different parts of the body
Organised Cells in the nervous system which is the organ system that controls the body's movements,sends and carries to and from different parts of the body
A large population of Yellow perch lives in the East river. The Walleye is a larger fish that eats the Yellow Perch. Despite lots of prey all the Walleye have moved from the East river to a new river. What most likely caused the Walleye to move to a different river?
(A)There is a lack of food in the East river which caused the Walleye to move to a different area.
(B) The Walleye are no longer able to catch the Yellow Perch and need to move to a different area.
(C)There is climate change which has caused the resources to decline in the East river.
(D) There is pollution in the East river that the Yellow Perch are adapted to but the Walleye are not.
Answers
Answer:
(D) There is pollution in the East river that the Yellow Perch are adapted to but the Walleye are not.
Explanation:
To ensure survival and cntinurd sustenance in an environment, there is need for an animal to posses certain features which would enable her cope with the conditions of the environment. The ability of animals to successfully live and survive in an environment is made possible through adaptation as the animal's adaptive features ensures the animal is able to live through and cope. If the adaptive features aren't suitable for such environment, then migration has to occurs, leading the animal to find a more suitable environment for survival. In the scenario above, the East river was presumed to be a good habitat for the Walleye and Yellow Perch, in spite of the available and abundance of food, the Walleye migrated, which is most likely due the fact that the Walleye lack the adaptive features to survive in the East river probably due to pollution which the Yellow Perch is well adapted to.
Name three functions of the hormone epinephrine.
Answers
Answer: See explanation
Explanation:
Epinephrine is also referred to as Adrenaline and it is formed in the medulla oblaganta by adrenal glands and neurons. Some of it's functions include:
1. To help increase the cardiac output.
2. It is vital for respiration as it speeds up breathing.
3. To raise the level of glucose in the blood.
4. To increase the blood pressure by stimulating heart rate.
6. How might protein synthesis execute differently if a mutation occurs?
Answers
Answer:
The wrong protein can be created or the right one with abnormal function.
Explanation:
The mutated DNA is taken through the whole protein synthesis process and translated by the rRNA and tRNA to create a protein from that new sequence.
If a woman who is heterozygous for type B Blood, has a baby with a man who is heterozygous for type B blood, what are they chances their baby could have type O blood?
Answers
Answer:
50%
Their are 50% chances for their baby to have type O blood.
The myenteric plexus is located in which layer of the alimentary canal?
A. Mucous
B. Serosa
C. Sumucosa
Answers
Explanation
atch the statement to the following options.A. One of a pair of chromosomes with similar genetic information and from different sources like the sperm and egg.B. Several X-shaped structures may be visible under the microscope and indicate where crossing over has occurred.C. A lattice of protein holds two replicated chromosomes in precise register with one another.D. Four chromatids are held together by a zipper-like structure.E. A process in which pairs of homologous complex chromosomes line up side by
Answers
Answer:
A. Homologue.
B. Chiasma.
C. Synaptonemal.
D. Synaptonemal.
E. Synapsis.
Explanation:
Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.
Synaptonemal complex can be defined as a network of proteins that is responsible for holding homologous chromosomes (homologues) together.
Generally, a synaptonemal complex (protein lattice) is formed between homologous chromosomes during mitosis and meiosis. Also, synaptonemal complex is important for the formation of the four sister chromatids referred to as tetrads.
Furthermore, the synaptonemal complex (protein lattice) has a tripartite structure which comprises of the following components;
I. SC protein-1 (SYCP1).
II. SC protein-2 (SYCP2).
III. SC protein-3 (SYCP3).
In conclusion, the synaptonemal complex plays a significant role in synapsis, recombination and chromosome pairing.
Matching the various terminologies in genetics with their description, we have;
A. Homologue: one of a pair of chromosomes with similar genetic information and from different sources like the sperm and egg.
B. Chiasma: several X-shaped structures may be visible under the microscope and indicate where crossing over has occurred.
C. Synaptonemal: a lattice of protein holds two replicated chromosomes in precise register with one another.
D. Synaptonemal: four chromatids are held together by a zipper-like structure.
E. Synapsis: a process in which pairs of homologous complex chromosomes line up side by side.
Energy is released during chemical reactions that occur in
Answers
Answer:
Mitochondria
Explanation:
Living organisms, no matter how microscopic, require energy for their metabolic activities. However, this energy is released for use in form of ATP when the organism undergo the process of cellular respiration, a metabolic process that breaks down food to release its stored energy.
However, this cellular respiration is a chemical reaction that takes place in an organelle of an eukaryotic cell called MITOCHONDRION (plu- mitochondria).
BIOLOGY PLEASE HELP 15PTS AND BRAINLIEST
What three processes take place in the digestive system?
Answers
Answer:
digests food, absorbs released nutrients, and excretes food components that are indigestible.
what term refers to a situation where a single phenotypic character is determined by the additive effects of two or more genes?
Answers
Answer:
Explanation:
Polygenic inheritance refers to a situation where a single phenotype character is determined by the addictive of two or more genes.
hope it helps :)
What does hydroelectric power do?
a.) causes thermal pollution
b.) requires building dams that can harm ecosystems
c.) uses the energy inside an atom's nucleus to generate electricity
d.) releases carbon dioxide into the air
Answers
Answer:
B Requires building dams that can harm ecosystems
Answer:
b
Explanation:
The diagram below illustrates substances crossing the selectively permeable membrane of different cells. Each example, A-F, shows not only different substances, but also different concentrations. Take note of the concentration inside the cell compared to the concentration outside of the cell and the direction of movement of the substance.
Figure 3-1
Diagram A in Figure 3-1 is an example of ____.
a.
diffusion
c.
osmosis
b.
active transport
d.
equilibrium
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
A
Explanation:
the selectively permeable membrane should be plasma membrane.
and it states it follow concentration gradient
so i think it is A
osmosis is for water
I hope i helped you.
How is antigenic drift beneficial for viruses?(1 point)
A) It changes how genes code for antigens.
B) It leads to less mRNA which is easier to copy.
C) It creates a variety of immune responses in the host organisms.
D) It makes them unrecognizable to the immune system.
Answers
Answer:
1. Individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offspring.
2. random mating
3. The green skin color is being selected over blue skin color.
4. DNA
5. They show intermediate steps in the evolution process.
6. Different islands had very different food resources available, and only individuals that were adapted to eat those food resources survived and reproduced on that island.
7. Those who have traits that help them survive are able to reproduce, and their offspring have those traits, leading to a change in the species over time.
8. It makes them unrecognizable to the immune system.
9. The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.
10. the correlation between air pollution and white moth predation
11. It is a biological process that leads a population to have a widespread expression of an advantageous trait.
Answer:It makes the unrecognized to the immune system:)
Explanation:
What is the main function of nervous tissue?