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Answer:
It is the varying chemical structure and properties of the R-group that make the amino acids different from one another. About 9 amino acids have non-polar R-groups and are relatively hydrophobic. Another 6 amino acids have strongly polar R-groups which readily attract water molecules.
Related Questions
How?
Water is clear and clouds are white, BUT clouds are made of water...
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Answer:
I don't know
Explanation:
1-7 please i really need help
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2. Object b traveled with the greatest average speed.
3. Object a traveled with the lowest average speed.
4. Object a’s average speed was 1 mph
5. Object b’s average speed was 2 mph
6. Object c’s average speed was 1.3 mph
7. Object c accelerated when it was in motion
The characteristics of a particular organism are listed below. (The Picture)
In which kingdom should this organism be classified?
A) Eubacteria
B) Animalia
C) Plantae
D) Fungi
Answers
PLS HELP OR ILL FAIL SCHOOL
ill give brainliest and help you with wtv
Answers
Answer:
I'm not sure about 13 and 19.
13. Traits?
14. Hagfish
15. No, it doesn't have jaws.
16. Mammary glands.
17. Jaws and lungs.
18. Lizard, bird, cow, lion.
19. The bird?
20. Claws/nails, lungs, and jaws.
Also, this is a cladogram, in case you needed the info. :)
Answer:
13. shared derived characteristic
14. Hagfish
15. No, it doesn't have jaws.
16. Mammary glands.
17. Jaws and lungs.
18. Lizard, bird, cow, lion.
19. the frog
20. Claws/nails, lungs, and jaws.
Explanation:
Which of these is not a principle of natural selection?
A. Over time, the offspring of individuals with helpful variations make up more of a population and eventually become a separate species
B. Variations are passed to offspring
C. Differences, or variations, occur among individuals of a species
D. Adaptations happen in a start stop fashion
Answers
Answer:
D
Explanation:
adaptations are passed down in natural selection but it’s not in start stop fashion
Answer:
D
Explanation:
Adaptations occur, but they don't just stop. In virtually every population, you will have variation, and therefore, adaptations. They aren't going anywhere.
;)
Write an essay pretending to be an Ecologist studying the Green Sea Turtle. As an ecologist what is important for you to study? What is the habitat of your animal? Is the animal an endangered species? Can the species be saved? If it is being saved how is the species being saved?
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What is the function of hormones?
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Answer:
hormones serve as messengers, controlling and coordinating activities throughout the body
Explanation:
Answer:
May I please have brainiest
Explanation:
Hormones serve to communicate between organs and tissues for physiological regulation and behavioral activities such as digestion, metabolism, respiration, tissue function, sensory perception, sleep, excretion, lactation, stress induction, growth and development, movement, reproduction, and mood manipulation.
Which organ releases the male hormone testosterone?
A. Hypothalamus
B. Ovary
C. Pancreas
D. Testicle
Answers
Answer:
D. Testicle
Explanation:
The testicle releases the male hormone testosterone.
Answer:
Testicle releases the male hormone testosterone
D) Testicle★・・・・・・★・・・・・・★
hope it helps...
have a great day!!
What are the substances?
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Explanation:
how many stem cells are there? name them all.
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South America is also home to some of the driest parts on earth like Lima, Peru. Using your knowledge, describe why there is a tropical rainforest that receives a lot of precipitation and Lima is still extremely dry from the same air mass moving across the continent. This should be multiple sentences. [Word Bank: air mass, humid, elevation, rising, clouds, sinking, rain, dry, wind/air movement]
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i am soooo sorry but i do not know how to do this
How are birds adapted for flight? What are the uses for feathers?
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Answer:
Instead of heavy jaws and teeth, they have lightweight beaks. And instead of fur, they have feathers. These are light, streamlined and cleverly adjustable for flight control. Their bones are also hollow making them lighter for flight
Explanation:
What molecule does the mitochondria break down?
Group of answer choices
lipid
glucose
protein
starch
Answers
Answer:
Within the central compartment of the inner mitochondrial membrane are the Krebs cycle enzymes that, in a cyclical series of chemical reactions, break down the two-carbon fragments to carbon dioxide. As part of these breakdown reactions high energy electrons are produced.
Explanation:
Important test and i have limited time so please hurry <3
also is this the right subject for these questions or no i honestly dont know
Answers
Answer:
bird eat grasshopper
grasshopper eat plant
plant eat soil
Viruses vary in size and structure, but what is one thing they have in common?
a. they destroy the host cell
b. they all cause terminal illness
c. they all hijack a host cell
d. none of the above
Answers
Mitosis is only done by _____________________ cells and it makes ___________________________ cells.
Answers
Answer: Eukaryotic cells, daughter cells
Answer:
Eukaryotic Cells and Daughter Cells
Explanation:
Only eukaryotes perform mitosis, and since mitosis is a form of asexual reproduction, the cells that result from mitosis are "clones." These are referred to as daughter cells.
Which of these are present in both woody and herbaceous stems? (Select all that apply.)
rings
seedlings
phloem
xylem
Answers
An astronaut’s suit provides for the basic needs of the astronaut. Which of the following is NOT an accommodation provided by the astronaut's suit?
The answer choices are in the picture
Answers
There is no place for the waste to go when the restroom is needed when the suit is worn.
What are 4 different types of bones?
Please help me! <3 :)
Answers
Answer:
long, short, flat, and irregular
Explanation:
Answer:
The four types of bones are irregular,flat, short, and long
Explanation:
Use examples to explain how the biosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. (7 points)
Answers
Answer:
Answer:it involves the biosphere because the geosphere gives the plants and life a place to grow it involves the hydrosphere because it gives the water a place to go on the earth and the sea animals
Explanation:
Lets see if you can Answer this test!
Question 1(Multiple Choice Worth 4 points)
(06.01 HC)
Two methods of biotechnology used by scientists are described below.
Process A: Inserted a pesticide gene into a soybean
Process B: Used plants and microorganisms to create a new biofuel
Which process is likely to be more advantageous in conservation?
Process B because it will reduce our dependency on fossil fuels
Process A because it will increase the number of pests in the environment
Process B because it will cause an increase in fossil fuel pollution
Process A because more food will increase the global population
Question 2(Multiple Choice Worth 4 points)
(06.04 LC)
Which type of reproduction involves only one parent?
Asexual
Cytokinesis
Meiosis
Sexual
Question 3(Multiple Choice Worth 4 points)
(06.03 LC)
What tool is used to track inherited traits between parents and offspring?
Allelic pair
Family tree
Pedigree chart
Punnett square
Question 4(Multiple Choice Worth 4 points)
(06.02 LC)
Which of the following personal health conditions can be controlled by exercise and diet?
Heart disease
Sickle cell anemia
Skin cancer
Sunburn
Question 5(Multiple Choice Worth 4 points)
(06.02 MC)
Which of the following is true about the offspring of an organism Y that reproduces sexually?
The offspring would show all the traits of Y.
The offspring would be identical in size to Y.
The offspring would have identical DNA as Y.
The offspring would show some traits of the parent other than Y.
Question 6(Multiple Choice Worth 4 points)
(06.04 MC)
A few characteristics of a type of reproduction are shown below:
1. Occurs in all body cells
2. Two daughter cells are formed
3. Chromosomes arrange equally on either side of the equator
4. The daughter nuclei each have half the number of chromosomes as that of parent cells
5. Is necessary for sexual reproduction
Which of the above are characteristics of meiosis?
1, 2, and 3
1, 4, and 5
2, 3, and 4
3, 4, and 5
Question 7(Multiple Choice Worth 4 points)
(06.02 LC)
Which of the following hereditary conditions is characterized by abnormally shaped blood cells?
Acne
Heart disease
Sickle cell anemia
Type 1 diabetes
Question 8(Multiple Choice Worth 4 points)
(06.01 MC)
What is the likely advantage of growing a genetically modified variety of tomato that remains fresh over several days?
Post-harvest losses due to delayed transportation would be reduced.
Disease-causing pests may never be able to attack such a variety of tomato.
When consumed it would provide more nutrients than the regular variety.
When consumed it would improve the quality of life of people with genetic disorders.
Question 9(Multiple Choice Worth 4 points)
(06.01 HC)
A corn plant has been genetically engineered. It produces pollen that can make its own toxins. These toxins protect the corn plant against pests. What is a likely impact on the environment around the corn plant?
Bird and butterfly populations around the area may increase.
The concentration of pesticides in a nearby lake would increase.
Newer strains of pesticide-resistant pests may develop.
The carbon dioxide level would increase in the area.
Question 10(Multiple Choice Worth 4 points)
(06.04 MC)
Some steps in cell division are shown below:
1. Chromosomes condense and pair up
2. Segments of DNA of sister chromatids twist and cross
3. Exchange of DNA occurs between chromosomes
4. Four daughter cells are created that are haploid
Which of the following steps is least likely to occur during meiosis 1?
Step 1
Step 2
Step 3
Step 4
Question 11(Multiple Choice Worth 4 points)
(06.01 MC)
Which type of biotechnology would a dairy farmer use to mate the cows at his farm with genetically superior bulls to produce offspring that give high-quality milk?
Genetic engineering because the genes of the cows are altered
Genetic engineering because cows with desirable traits are produced
Artificial selection because offspring with desirable traits are produced
Artificial selection because the process reduces the production time of offspring
Question 12(Multiple Choice Worth 4 points)
(06.02 HC)
In fruit flies the allele for long wings (L) is dominant and the allele for short wings (l) is recessive. What is the likely genotype of a fruit fly with long wings?
Either LL or Ll
Either Ll or ll
Only LL
Only ll
Answers
2) asexual reproduction
3) Punnett square
4) heart disease
5) the offspring would show some traits of the parent other than y.
6) two daughter cells are formed, the daughter nuclei each have half the number of chromosomes as that of parent cells, is necessary for sexual reproduction (2, 3, and 5)
7) sickle cell anemia
8) post- harvest losses due to delayed transportation would be reduced
9) the concentration of pesticides in a nearby lake would increase
how can you explain what you know about the heavily muscled cows with what you have learned about mutations, patterns of inheritance, incomplete dominance, sexaul reproduction, selective breeding and transferring of genetic information?
Answers
Myostatin (GDF-8) is a member of the transforming growth factor β superfamily of secreted growth and differentiation factors that is essential for proper regulation of skeletal muscle mass in mice. Here we report the myostatin sequences of nine other vertebrate species and the identification of mutations in the coding sequence of bovine myostatin in two breeds of double-muscled cattle, Belgian Blue and Piedmontese, which are known to have an increase in muscle mass relative to conventional cattle. The Belgian Blue myostatin sequence contains an 11-nucleotide deletion in the third exon which causes a frameshift that eliminates virtually all of the mature, active region of the molecule. The Piedmontese myostatin sequence contains a missense mutation in exon 3, resulting in a substitution of tyrosine for an invariant cysteine in the mature region of the protein. The similarity in phenotypes of double-muscled cattle and myostatin null mice suggests that myostatin performs the same biological function in these two species and is a potentially useful target for genetic manipulation in other farm animals.
The transforming growth factor β superfamily encompasses a large group of secreted growth and differentiation factors that play important roles in regulating development and tissue homeostasis (1). We have recently described a member of this family, myostatin, that is expressed specifically in developing and adult skeletal muscle and functions as a negative regulator of skeletal muscle mass in mice (2). Myostatin null mice generated by gene targeting show a dramatic and widespread increase in skeletal muscle mass. Individual muscles in myostatin null mice weigh 2- to 3-fold more than those of wild-type mice, primarily due to an increased number of muscle fibers without a corresponding increase in the amount of fat. To pursue potential therapeutic and agricultural applications of increasing muscle mass by inhibition of myostatin activity, we have been characterizing myostatin in animals other than mice. Here we report that the myostatin gene is highly conserved among vertebrate species and that two breeds of cattle that are characterized by increased muscle mass (double muscling), Belgian Blue (3) and Piedmontese (4), have mutations in the myostatin coding sequence. These results demonstrate that the function of myostatin has been highly conserved among vertebrates. hope it helps
I WILL GIVE BRAINLIEST IF ANSWER IS CORRECT! Hurry I cant leave this exam!
Which of the following most likely happens when we exercise?
The heart rate slows down because the blood vessels have less blood to circulate.
The heart rate slows down because the blood vessels have more blood to circulate.
The heart pumps faster so that the blood vessels can carry more oxygen to some cells.
The heart pumps faster so that the blood vessels can carry more carbon dioxide to some cells.
Answers
how many parts to a virus?
Answers
Answer:I do know that it has dna and rna
Explanation:
The idea that a species that is best suited for a particular environment will survive and reproduce is called: a. evolution c. adaptation b. natural selection d. species diversity
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Answer:
natural selection :)
Explanation:
are the largest group of living reptiles.
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Answer:
Scaled reptiles
Explanation:
GIVING BRAINLIEST PLEASE HELP :')
A musk ox and the Alstroemeria flower have physical structures and organs that have similar functions. Provide two examples of similar structures or organs and describe how they have similar functions.
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The organs which perform same function and looks but they are different in their structure from each other are called as analogous organs.
Organs are the structures that made up of two or more tissues organized to carry out a particular function.
An organ or bone that appears in different animals with the same function is called homologous structure.
Homologous organs have similar origin n basic structure but perform different functions in different organisms. Analogous organs are different in basic structure but perform same functions.
Examples :
The arm of a human,the wing of a bird or a B at, the leg of a dog and the flipper of a dolphin or whale are homologous structures.
The forelimbs of all mammals have the same basic bone structure. The structures are all similar because they envolved to do the same job.
Plz mrk Brainliest
A: A bright, egg shaped form. B: Dust, gas, and stars in a nonuniform arrangement. C: Dust, gas, and stars in the shape of a pinwheel.
Use the drop-down menus to identify each type of galaxy pictured.
Galaxy A:
Galaxy B:
Galaxy C:
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Answer:
Can't answer without drop-down menus
Explanation:
does go through cell cycle in
mitosis, meiosis, or both
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Describe the difference between endotherms and exotherms. Give examples of each. How does each stay warm?
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Answer:
Explanation:
Everything on earth is different
Answer:
Endotherms use internally generated heat to maintain body temperature. Their body temperature tends to stay steady regardless of environment. Ectotherms depend mainly on external heat sources, and their body temperature changes with the temperature of the environment.
Explanation: