Answer:
DNA stands for deoxyribonucleic acid, which is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell and are passed down from parents to their offspring.
Answer:
DNA is made up of molecules called nucleotides each nucleotide contains a phosphate group, a sugar group and a nitrogen base. the four types of nitrogen bases are adenine (A), thymine (T), guanine (G), and cytosine (C). Deoxyribonucleic acid or DNA is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell, and are passed down from parents to their children.
Biology 1.....................................................................
Answer:
Explanation:
1.C
2.B
3.A
4. Endothermic, this processes require an input of energy to proceed and are signified by a positive change in enthalpy, also because the product is less compared to the reactants.
Please help me! Please show the work!
Answer:
7. 1800cm
8. 0.023
9. 50mm
10. 530,000
Explanation:
7.
18 x 100= 1800
8.
23÷1000= 0.023
9.
5 x 10= 50
10.
5.3 x 10,000= 530,000
Hopefully this helps you a little bit
1. Explain how dehydration synthesis and
hydrolysis are related.
Answer: In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.
Hi!! can u help me? It's a very confusing question
Answer:
Well since they have the same environment and the only thing that is different is the amount of sunlight and final height of the plant, we can say that the more sunlight a plant gets, the more it grows.
Describe different types of mutations
Answer:
A base is inserted into one strand of the DNA
Answer:
hope this helps if helps mark me brainliest
Explanation:
There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease. Point mutations are the most common type of mutation and there are two types.
what effect does vitamins have to your body
Answer:
here is your answer ✔️✔️✔️✔️✔️✔️
of
5. Which cannot fix atmospheric nitrogen in the soil?
b) Clostridium c) Azotobacter
a) Rhizobium
d) Penicillin
Answer:
The atmospheric nitrogen cannot be taken directly by plants and animals. Certain bacteria and blue green algae present in the soil fix nitrogen from the atmosphere and convert into compounds of nitrogen.
hope it helped
What are reactants in a chemical reaction?(1 point)
substances that are formed by reactions
outputs
inputs
substances that speed up reactions
Answer
D
Explanation:
inputs are the substances put in to make a chemical reaction.
The reactants are the inputs that are combined to form a product. The correct option is C.
What is a chemical reaction?A chemical reaction is a process that converts one or more substances, known as reactants, to one or more different substances, known as products. Chemical elements or compounds are examples of substances.
The most important types of events in the universe are chemical reactions. Plants grow, produce fruit, and decompose to become compost for new plants through chemical reactions.
Humans (and all other animals) reproduce, digest, grow, heal, and think as a result of chemical reactions.
Nuclear reactions are processes that involve the atomic nucleus. Reactants are the input substances that take part in a chemical reaction.
Products are the substances that are formed. The properties of the products differ from those of the reactants.
Thus, the correct option is C.
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1. As a group, you and three other students must make a presentation on an animal. Which option is the best example of your group coming to a consensus on the presentation topic?(1 point)
A. A group member is selected as the team leader and the team leader chooses the presentation topic.
B. Each member gets a vote and the animal with the most votes will be the presentation topic.
C. The group writes options on slips of paper, puts them in a hat, and the paper that is selected will be the presentation topic.
D. The group cannot agree on what animal to choose so your teacher chooses your presentation topic.
2. Why might a paleontologist who works with fossils and an archaeologist who specializes if recovering human artifacts work together to determine where a fossil belongs in the hominid family tree?(1 point)
A. They both know how to remove objects carefully from the ground.
B. They both have different skills to help answer the question about ancient humans.
C. They both understand the relationship between fossils and early humans.
D. They both are experts on different types of bones.
3. Suppose a team of scientists has uncovered the site of an ancient city along a river. Which question could an anthropologist and archaeologist work together to help answer?(1 point)
A. Which plants did humans grow at this site and how were they grown?
B. How have humans impacted the rock layer of the city changed over time?
C. What tools were found at the site and which civilization used them?
D. How did changes in the depth of the river affect the houses people built at the site?
4. Insects are important to many ecosystems. For example, bees help pollinate many different plants and many animals rely on insects as food sources. Citizen science projects allow the public to work together with scientists by collecting observational data on many types of organisms such as plants, birds, or insects.
Which question could citizen science data answer that best illustrates insect population responses to climate change?
(1 point)
A. “What tree species provide the best habitat beetle species in this area?”
B. “What types of foods can butterflies eat?”
C. “How many dragonfly species are native to this region?”
D. “How does caterpillar abundance and distribution change over the year?”
5. Coral bleaching occurs when coral become stressed and expel the algae that they contain. According to scientists, what steps can society take to fix coral bleaching?(1 point)
A. Scientists have concluded that society can only fix coral bleaching by stopping climate change entirely.
B. Scientists have concluded that society can fix coral bleaching by reducing stressors, such as sedimentation and pollution, and limiting climate change.
C. Scientists have concluded that society can fix coral bleaching by reducing stressors, such as sedimentation and pollution.
D. Scientists have concluded that society can only fix coral bleaching by controlling ocean temperatures by reducing greenhouse gas emissions.
Answer:
1). b
2) d
3). d
4). d
5) b
I hope it's helps you
biomolecules broken down into MONOMERS
(list 4)
The figure shown is a rectangular prism. Which edges are parallel to BD? Select each correct answer.
py
yh
bm
ah
mk
In the rectangular prism, the parallel lines to BD are PY, MK and AH. So the correct options are A, D and E.
What is a rectangular prism?
A rectangular prism is a geometrical figure. It is basically a polyhedron and has two congruent and parallel bases. It is also known as a cuboid.
A rectangular prism is made of six faces and each of the faces has twelve edges. It is called a prism because it has cross-sections along the length.
A rectangular prism is a three-dimensional figure with six faces. All the faces of the prism are rectangular in shape. Hence, there are three pairs of identical faces here. A rectangular prism is also called a cuboid due to its shape.
The rectangular prism has 6 faces, 12 edges and 8 vertices.
The top portion and the base portion of the rectangular prism are always a rectangle. It has three dimensions like a cuboid. These are length, width and height. The opposite faces of the prism are always congruent.
Therefore, the parallel lines to BD are PY, MK and AH. So the correct options are A, D and E.
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Examine the model for natural selection for rodents and their predator species, the owls. Which statement accurately
describes the relationship between genetic variation and natural selection? Select ALL that apply.
A)
B)
Genetic variation decreases in a population of prey after natural selection
acts on it
Genetic variation increases in a population of prey after natural selection
acts on it
Genetic variation decreases in a population of predators after natural
selection acts on it
Genetic variation increases in a population of predators after natural
selection acts on it
Genetic variation exists in a population leading to individuals with
adaptations with different survival frequencies.
D)
E)
Indiana is home to fossilized
The correct answers are:
-Genetic variation decreases in a population of prey after natural selection acts on it.
-Genetic variation exists in a population leading to individuals with adaptations with different survival frequencies.
Genetic variation creates new variants of a gene; such a variant is called an allele. These variations occur as a result of the interaction between individuals with their environment, where it affects them in a way that determines their survival or not, as a consequence of their adaptability to the surrounding context. Thus, natural selection occurs, which establishes which individuals survive and which individuals do not. Thus, individuals characterized as prey who develop defense elements against hunters will be the ones who survive, while those who do not will be the ones who will perish.
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In the following pedigree showing the transmission of Cystic Fibrosis, an
autosomal recessive condition, what must the genotype of the indicated woman
be?
A: FF
B: Ff
C: ff
D: cannot determine
*red circle is affected female*
*blue circle is normal female*
*red square is affected male*
*blue square is normal male*
In the pedigree showing the transmission of Cystic Fibrosis, the genotype of the marked woman will be FF or Ff. Thus, options A and B are correct.
What is a pedigree?Pedigree represents the heritable phenotypic trait in the form of charts and diagrams. Cystic Fibrosis disease is inherited by the autosomal recessive alleles and is possible only if the genotype is ff.
The genotype for the woman being normal should not have recessive alleles and only can be heterozygous or purebred dominant. It is possible only if the genotype is Ff and ff.
Therefore, the genotype of the indicated woman will be Ff and ff.
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What is a possible answer to a scientific question, based on
evidence that can be tested by observation or
experimentation?
Answer:
A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable. This means that researchers must be able to carry out investi- gations and gather evidence that will either support or disprove the hypothesis.
Which descriptions apply to these two compounds?
Answer:
atoms and molecules
Explanation:
do you think your heart plays the biggest role in the process of getting your blood become rich in oxygen and transporting materials gases and other molecules to and from the different parts of the body?
WHY DO YOU THINK SO?
Yes. Absolutely. Without heart, no one can live. It helps in pumping of oxygen rich blood to all body cells and tissues. It also helps in transportation of various materials like potassium, sodium, calcium etc. in our body. The main function is that it helps in excretion of wastes.
Since blood is liquid and heart pumps it, the waste materials like CO2, gets diffused and becomes impure blood. Then it is taken to lungs for purification and again reused.
So, heart actually helps us indirectly in many ways.
Hope it helps you.. pls mark brainliest if it helps you
How many body sections do insects have?
a.
one
b.
two
c.
three
d.
four
Explanation:
Option C answer is 3 three
Answer:
insects have three body sections
describe how the solar system was formed
Explanation:
The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it. In a similar manner, moons formed orbiting the gas giant planets.
state 3 main parts of eukaryotic cell
Answer:
The three main parts of a eukaryotic cell are the cell membrane, the cytoplasm and the nucleus.
Answer:
Cell Membrane, Cytoplasm, and The Nucleus.
Explanation:
Proteins can be denatured in many ways.
Which of the following will NOT denature
a protein?
A. pH
B. temperature
C. too many enzymes
D. salt content
Answer:
Explanation:
However, at very high salt concentration, the increased surface tension of water generates a competition between protein and salt ions for hydration. Salts strip off the essential layer of water molecules from the protein surface eventually denaturing the protein
Too many enzymes cannot denature protein.
Enzymes are a type of protein so they will not get denatured in presence of one another.Enzymes are proteins that speed up any biochemical reaction in the body.What is denaturation of protein?It is a process of modifying the molecular structure of a protein.It involve breakage of many of the weak bonds within the protein molecule that are responsible for the structure of protein and its order.It can happen due to high temperature, pH, salt concentration and mechanical concentration.To know more about denaturation of protein here
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Overview of photosynthesis, using the detailed inner structure of a leaf.
Answer:
Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.
Explanation:
¿Qué ocurre cuando inspiramos?
Answer:
Cuando respiramos, el diafragma se mueve hacia abajo, en dirección al abdomen, y los músculos de las costillas empujan a las costillas hacia arriba y hacia afuera. Esto hace que la cavidad torácica se agrande y tome aire a través de la nariz y la boca para enviarlo a los pulmones.
Jorge is studying a pond ecosystem in his neighborhood. The pond is home to a variety of plant and animal species, as well as a stop for birds that migrate through the region.
One summer, heavy rains wash an unusual amount of fertilizer into the pond. Jorge observes the algae population growing rapidly, and quickly algae cover the pond's surface. Several weeks later, many fish and other animals die in the pond. However, within two years, the algae population has returned to its previous size, as have the populations of all the ecosystem members.
Jorge's observations provide the strongest evidence for which of the following conclusions about the pond?
A. The pond ecosystem has very high biodiversity that protects it from invasive species.
B. The pond ecosystem is resilient to changes in many abiotic and biotic factors.
C. The pond ecosystem can withstand only certain levels of algal growth.
D. The pond ecosystem may change over time, but its species will continue living there indefinitely.
Answer:
I think that the answer is C.
Explanation:
If the levels of algae were too high then it would be the reason as to why the fish died. When the algae went back to normal,the fish were able to live there again.
I hope that helps!
Answer:
C.The pond ecosystem can withstand only certain levels of algal growth.
Explanation:
Hello i need hell to answer this, thank you in advance <3 (The subject is science)
and please take your time, again thank you in advance. <3
(I’m sorry if I got the subject wrong from the above)
1. Which is not part of the respiratory system?
a. bronchus b. nasal cavity
c. esophagus d. trachea
2. A long-term smoking habit can destroy the cilia along the lining of the air passages. How could this affect a smoker’s health?
a. the smoker will have very limited air.
b. the smoker will have difficulty in breathing.
c. the smoker’s respiratory tract will be blocked.
d. the smoker will not be able to filter pollutants.
3. In which blood vessel does the exchange of nutrients and wastes happen?
a. arteries b. capillaries
c. lymphocytes c. venules
4. Which type of white blood cells is the most abundant and combats bacterial and fungal infections?
a. eosinophil b. monocytes
c. lymphocytes d. neutrophil
5. Which is the largest artery in the body?
a. aorta b. leg artery
c. lymphocytes d. neutrophil
6. Which among the following choices below is the right pathway of oxygen from the lungs to the body tissues?
a. Alveoli-blood stream-RBC-tissues
b. Alveoli-RBC-bloodstream-tissues
c. RBC-alveoli-bloodstream-tissues
d. RBC-bloodstream-tissues
7. All of the following actions are part of exhalation, EXCEPT
a. The ribcage contracts inward
b. The volume of the thoracic cavity decreases
c. The diaphragm contracts and pull downward
d. The pressure of the thoracic cavity increases
8. What is the difference between haploid and diploid?
a. Haploid contains 46 chromosomes; Diploid is 23 chromosomes
b. Haploid contains 44 autosomes; Diploid is 6 sex chromosomes
c. Haploid contains 6 sex chromosomes; Diploid is 44 autosomes
d. Haploid contains 23 chromosomes; Diploid is 46 chromosomes
9. How many pairs of autosomes do human body?
a. 20 pairs b. 21 pairs
c. 22 pairs d. 23 pairs
10. Genetics is a branch of science that studies heredity and variations. How will you be able to describe heredity?
a. It is the study of genes.
b. It is the study of variation.
c. It is responsible for the uniqueness of individual.
d. It is the passing of traits of parents to their offspring.
11. All of the following are Non-Mendelian inheritance, EXCEPT
a. Segregation
b. Condominance
c. Multiple Alleles
d. Incomplete Dominance
12. Gene is a part of a cell that controls or influences the appearance and growth of a living organism. Where are genes specifically located?
a. Inside the cell.
b. Segment of the DNA.
c. Inside the chromosomes.
d. Segment of chromosomes.
13. Nadine who is a homologous dominant curly hair (CC) married James, a heterozygous dominant (Cc), and gave birth to a jolly and beautiful curly hair girl named Jadine. What principle of inheritance was shown in the result?
a. Dominance and Recessiveness b. Segregation
c. Independent Assortment d. Incomplete dominance
14. In carnations, when a red flower is crossed with a white flower, pink is produced. What principle of Inheritance was shown in this breeding result?
a. Condominance b. Segregation
c. Sex-linked Traits d. Incomplete dominance
15. Why is biodiversity important to ecosystems?
a. It increases at each level of the food chain.
b. It helps population adapt to ecological changes.
c. It reduces the number of insects in a given ecosystem.
d. It allows animals to feed permanently from specific type of plant.
Answer:
1). c
2) d
3) b
4) c
5) a
6) a
7) d
8) d
9) c
10) d
11) a
12) c
13)
14) d
15)
4. Ciertos individuos en su escuela son líderes. ¿Qué hace que la gente siga a los demás? Una encuesta realizada indicó que
el rasgo que más valoraban los estudiantes en un amigo era la honestidad. ¿Por qué cree que esto es cierto?
Answer:
Mucha gente sigue a los demas porque piensan que lo que muchos siguen la mas alta alta probalidad tiene de estar correctos y tambien creen que ellos son bien popular.
Explanation:
7. Observations and inferences are
important in science. How would you
explain the difference between the
two words?
Hey there! I'm happy to help!
Observations are things that can be written down or described. You can observe something with any of your five senses: you can see what color something turns, you can hear the noise something makes, you can taste a cookie with a different amount of an ingredient, you can smell an odor produced by a chemical reaction, and you can feel the texture of different samples.
You can also create observations by using scientific tools. For example, instead of feeling if water is hot or cold, you could use a thermometer. This will give you numerical data which can be put into a table or graphed for further analyzing.
Inferences are created from observation. You cannot make an inference without observation. Observations lead to inferences. Inferences are conclusions or guesses made from the observations. You could infer that sugar makes a cookie taste sweeter after experimenting with no sugar and observing that it tasted bitter. You could infer that more weight allows things to travel further after going down a ramp after measuring the distances different weights travel, graphing it, and observing the data.
Have a wonderful day and keep on learning! :D
Which statement best represents how structure relates to function
Answer:
Butterfly cocoons are often camouflaged
Explanation:
hope it help goodluck (◕ᴗ◕✿)
What is the meaning of a null hypothesis being rejected?
Answer:
If there is less than a 5% chance of a result as extreme as the sample result if the null hypothesis were true, then the null hypothesis is rejected. When this happens, the result is said to be statistically significant .
A phylum is always associated with:
O plants
O animals
O plants or animals
O plants and animals
Answer:
plants
Okkk kkkkkkkkkkkk
plants
is the correct answer
What is a silent mutation?
Answer:
Mutations in DNA that do not have an observable effect on the organism's phenotype.
Method:
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