Why do scientists use light-year instead of Astronomical Units to measure the distances between stars?
Answer:
well AU is only for inside a star system and the number of AU would be too high, so light years are easier its like saying ur 6 feet instead of 72 inches or in centimeters
Explanation:
1.The illustration below shows that sexual reproduction involving two parent pea plants resulted in the production of four offspring.
A. All four offspring received all of their genetic information only from Parent 1 and are therefore identical to that parent
B. All four offspring received all of their genetic information only from Parent 2 and are therefore identical to that parent.
C. All four offspring are genetically unique and did not receive any of their genetic information from either parent.
D. Each of the offspring is genetically unique and received some of its genetic information from each parent, so each has some traits in common with each parent.
Answer:
C
Explanation:
Because of the x and y chromosomes and they split apart and that's how you get 4 offspring.
The fusion of two different gametes leads to the formation of new offspring is called reproduction. There are two types of reproduction that is sexual and sexual.
The correct option is A
The branch of biology which deals with the study of genes is called genetics. there are two types of alleles that give all the character to the phenotypes. The dominant allele is the allele that suppresses the recessive allele and shows its effect.
In question, the F1 generation shows only one type of character which belongs to parent 1 because that is the dominant allele.
Hence, the correct option is A that is all four offspring received all of their genetic information only from Parent 1 and are therefore identical to that parent
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identify the missing parts of the carbon cycle photosynthesis burning oil and coal respiration decomposers
Answer:
Carbon is part of our bodies, but it's also part of our modern-day industries. Carbon compounds from long-ago plants and algae make up the fossil fuels, such Deeper under the ground are fossil fuels such as oil, coal, and natural gas, When humans burn them, carbon is released into the atmosphere as carbon dioxide.
Explanation:
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the process of taking gaseous carbon dioxide or oxygen by leaves is termed
Answer:
photosynthesis
as in the process of photosynthesis plants take in carbon dioxide and give out oxygen.
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The process of taking gaseous carbon dioxide or oxygen by leaves is termed peristomal diffusion or diffusion through stomata present on leaves.
Plants take up carbon dioxide or oxygen from the air through their leaves as they have several stomata on their surface. The small holes or openings in the underside of the leaf are called stomata.
Diffusion through stomata also helps oxygen, produced in photosynthesis, to leave the leaf.The diffusion of gaseous carbon dioxide or oxygen is proportional to the concentration difference between the atmosphere and leaves.The loss of water vapor in transpiration also occurs through stomata.peristomal diffusion or diffusion through the leaves allows the gaseous exchange.Thus, the correct answer is - peristomal diffusion or diffusion through stomata present on leaves.
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what type of bond is formed when oxygen combines with hydrogen to form water
Answer:
water is a covalent compound consisting of hydrogen and oxygen . it contains Single covalent bond
as a
A cell with half the number of chromosomes (n) a
2n cell.
A. exons
B. operon
C. genome
D. diploid
E. nucleosome
F. recessive
G. restriction enzyme
H. haploid
I. dominant
J. gel electrophoresis
Answer:
H. Haploid
Explanation:
A cell that contains two of each chromosome, or 2n, is a diploid. If a cell has half of those chromosomes, or just n, it is a haploid.
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Which of the following are considered to be selective pressures that increase competition for survival within a species?
A) Lack of predators
B) Lack of food
C) Poverty
D) Extreme climate conditions
E) Lack of mates
F) A new habitat for shelter
If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
We have that for the Question "If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made." it can be said that
the possible ratios of boys to girls that could be made are
21:421:210:205:10And any ratio that gives a ha
From the question we are told
If there are 21 boys and 42 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
Generally the equation for the Ratio is mathematically given as
x=21:42
Therefore
21:42
1:2
10:20
5:10
Therefore
the possible ratios of boys to girls that could be made are
21:421:210:205:10And any ratio that gives a half
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Which one of the following m-RNA codons codes for a stop sequence?
a .AGU b.UGC c.UUU d. UGe e. none of these
Of the following biomes which receives the most solar energy?
Grasslands
Tundra,
Tropical rain forest
Coniferous forest
Answer:
C
Explanation:
What is Criteria in the classification of fungi?
Answer:
The classification of fungi relies mostly on morphological criteria such as the pigmentation, shape of hyphae, presence or absence of septa and types of spores.
Drag the appropriate descriptions of the subatomic particles into the following boxes. Labels may be used more than once.
Answer:
Protons: Found in Nucleus, +1
Neutrons: Found in Nucleus, Electrically Neutral
Electrons: Found in Orbitals, -1
Explanation:
The subatomic particles corresponding to specific properties are shown below;
Found in the nucleus;
ProtonsNeutronsFound in orbitals surrounding the nucleus;
ElectronsElectrically neutral
Neutrons
+1
Protons-1
ElectronsThe atom is composed of subatomic particles such as electrons, protons and neutrons.
The protons and neutrons are found in the nucleus. The proton has a charge of +1 while the neutrons have no charge.
The electrons orbit the nucleus and has a charge of -1.
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Explain how the muscle and two parts of the bone that helps to maintain homeostasis. Also,
explain how the muscle contracts.
Answer:
Sorry but I don't know sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry
Which of the following structures are found in all living cells? (Select all that apply.)
Answer:
cell membrane, DNA and RNA, cytoplasm, and ribosomes
Explanation:
A plants normal cell contains 24 chromosomes. How many would you predict it's
sperm cell (aka pollen) to have?
O 36
O 24
12
48
LIST THREE NATURAL PROCESS THAT AFFECT THE ECOSYSTEM
Answer:
1.)Ecological Succession
2.)carrying capacity
3.)population shocks
Explanation:
One reaction has ΔG = -16.4 kcal/mol. Another has ΔG = 10.3 kcal/mol. Can these two
reactions be coupled so that the energy released by one is used to drive the other? Explain your
reasoning
Explanation:
I needs points plz dont report my answer
Select all that apply
What organs make up the peripheral nervous system?
Multiple select question.
Cranial nerves
Spinal cord
Brain
Spinal nerves
Easy question
Scenario: Nasa has been sending different animals to Mars and found that all thrive. This time, they want to experiment with humans. As a reward to the first voulnteer, they will own thousands of acres of land on Mars
Will you volunteer to be among the first human occupant on Mars? Why or Why not?
Answer:
I would volunteer to be among the first humans to occupy mars, as I would go down in history forever. Additionally if i didn't want the thousands of acres I could just sell them and make money that way. I think people who are fascinated with space would be more eager to volunteer than me tho
Explanation:
Which of the following is the best evidence that supports the rule that only 10% of energy is transferred from one organism to another? (1
There are fewer organisms at the top of the food chain because there is less energy available for life processos
O Ten percent of organisms are fully consumed while others contain some molecules that cannot be digested
Not all organisms at the lower trophic levels will be eaten and die
O Dead organisms and waste are broken down by decomposers and are recycled through the ecosystem
Answer:
I believe the answer is A
Explanation:
There are fewer organisms at the top of the food chain because there is
less energy available for life processes is the best statement that supports
it.
What is Trophic level?This is the position an organism occupies in a food chain. The organisms
are usually fewer while those at the bottom have more organisms present
in the chain.
As food chain moves from bottom to the top, the energy level decreases
which depicts 10% of energy is being transferred from one organism to
another
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Two rhinoceros beetles have different parents.They have different shape horns.why do the beetles have differently shape horns.
Answer:
because they have different genes
Explanation:
when animals mate or reproduce the parents share each other genes to make thr offspring when that accurse different beetles can have different genes that could code for longer horns or shorter. Their could also be a mutation.
Explain in simple terms the function of each organelle. Use these terms:
Nucleus _______
Mitochondrion _______
Ribosome _______
Cell membrane _______
Smooth endoplasmic reticulum _______
Rough endoplasmic reticulum _______
Golgi apparatus _______
Cytoplasm _______
Answer:
The nucleus is the control center of the cell.
The mitochondrion creates energy for the cell (powerhouse).
Ribosomes create proteins (protein synthesis).
The cell membrane is a barrier that lets certain molecules in and out of the cell.
The smooth endoplasmic reticulum is involved in metabolic processes such as synthesizing lipids.
The rough endoplasmic reticulum contains ribosomes that make proteins.
The golgi apparatus packages molecules (usually for exportation).
The cytoplasm gives the cell its shape and supports the organelles.
Explanation:
I can explain it in more detail if you would like :)
Explain why methicillin resistant Staphlococcus aureus (MRSA) is more prevalent now than it was only 30 years ago. See Section 1.7 (Page) . Explain why methicillin resistant Staphlococcus aureus (MRSA) is more prevalent now than it was only 30 years ago. See Section 1.7 (Page) . Methicillin resistance causes an infection to spread more rapidly. Antibiotics cause mutations in Staphlococcus aureus that lead to an increase in the number of methicillin-resistant strains. Frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of Staphlococcus aureus. Diseases like AIDS have made people more vulnerable to infections from Staphlococcus aureus.
Answer: Frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of Staphlococcus aureus.
Explanation: The methicillin resistant Staphlococcus aureus is an example of the Theory of Evolution explained by Darwin. He stated that evolution is brought by 3 principles: Variation - the variety of species allows them to adapt better in the environment; Heridity - when those characterists necessary for survival passes on to the next generation; Natural Selection - the organism which is the most adapted to the environment survives to passes on their characteristics;
In a strain of Staphlococcus aureus, there are strains which are resistant to the antibiotics. The constant use of the medicament, and sometimes, the misuse of it, can select those strains which are resistant. As these characteristics are crucial for their survival, they are passed on to the next generation.
This is why the rate of methicillin-resistant Staphlococcus aureus has increased along the years.
Guys hurry what is genotype and what is phenotype
Answer: Phenotype= the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
Genotype= In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. Humans are diploid organisms, which means that they have two alleles at each genetic position, or locus, with one allele inherited from each parent.
Explanation:
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Give 3 examples of aseptic techniques when pouring agar plates
Answer:
preparation, environmental controls, and contact guidelines
Explanation:
Direction: Determine if the following mixture is a colloid or not. Write
C if colloid and N if it is not. Write your answers in your answer sheet
1. Margarine
2. Mayonnaise
3. Toothpaste
4. Smoke
5. Cough syrup
6. Smog
7. Vinegar
8. Cake
9. Soy sauce and vinegar
10. Soft drinks
Before Going To Solve This Problem let's know about what is Colloids
→ Colloids are heterogeneous mixture in which the size of particles are too small and can't be seen with naked eyes.
→ The particles of colloid can be pass through filter paper.
(1) Margarine
Ans:- Yes, margarine is colloids .
(6) Smoke
Ans:- Yes , Smog is colloids.
(2) Mayonnaise
Ans:- Yes, mayonnaise is colloids.
(7) Vinegar
Ans:- Yes, Vinegar is not colloids.
(3) Toothpaste
Ans:- Yes, Toothpaste is colloids.
(8) Cake
Ans:- Yes, Cake is Colloids
(4) Smoke
Ans:- Yes, Smoke is colloids.
(9) Soy sauce and Vinegar
Ans:- Yes, Soy sauce and Vinegar is colloids.
(5) Cough Syrup
Ans:- No, It is not colloids . It is suspension .
(5) Soft Drink
Ans:- No, it is not colloids .
The pedigree traces red-green color blindness.
Lisa and Monica are half-filled circles. Sam, Bella, Joshua, and Tim are filled-in shapes.
Which family members have red-green color blindness?
Answer:
The correct answer is - Tim, Sam, Bella, and Joshua.
Explanation:
The human pedigree shows the particular trait in which is inherited in a family across different generations. In such pedigree, there are some signs that are used to express such as blank shapes represents normal individual, half-filled shapes represents a carrier individuals, and complete or fully filled shapes represent the affected individuals.
Lisa and Monica are half-filled circles which means they are carriers for the disease. Sam, Tim, Bella, and Joshua have filled-in shapes in the illustrated pedigree. Which means they are affected by the disease.
Answer:
Sam, Tim, Bella, and Joshua
Explanation:
I got it right
The female sex organ of the ferns that produce an egg cell is called?
Mutualism relates to which of the following relationships?
Answer:
A
Explanation:
Answer:
A. both organisms benefit
Explanation:
What is the frequency of this wave?
2
03
4
Answer:A 1 or 2
Explanation:
Answer:
Irregular because of lines passing each other