Answer:
based on measurement of cellular DNA content.
Explanation:
The first of these to occur when a new volcanic island rises out to the sea is
topsoil is formed.
lichens grow.
mosses grow.
rock cools and cracks.
Answer:
D
Explanation:
Rock cools and cracks because the topsoil can't be formed until the rocks crack, and if the topsoil isn't formed then nor lichens nor mosses can grow.
33. Why is it beneficial that plants have two kinds of chlorophyll (a and b)?
Answer:
chlorophyll in plants complement each other in absorbing sunlight.
Explanation:
light with a wavelength of 460 nm isn't always substantially absorbed by means of chlorophyll a, but will as a substitute be captured through chlorophyll b, which absorbs strongly at that wavelength. the two forms of chlorophyll in flowers
It is beneficial to have two kinds of chlorophyll in photosynthetic plants because both types of chlorophyll work complementary to each other and allow maximum absorption of light in the blue to red spectrum.
What do you mean by Chlorophyll?Chlorophyll may be defined as the green-colored pigment in plants, algae, and cyanobacteria that is essential for photosynthesis.
Chlorophyll A absorbs the light of wavelength 400 to 450nm with maximum intensity and 650 to 700nm with minimum intensity.
Chlorophyll B absorbs the light of wavelength 450 to 500nm with maximum intensity and 600 to 650nm with minimum intensity.
Therefore, it is beneficial to have two kinds of chlorophyll in photosynthetic plants because both types of chlorophyll work complementary to each other and allow maximum absorption of light in the blue to red spectrum.
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Which process of respiration relies on partial pressure gradients to move air in and out of the lungs
Earth orbits the Sun every 365 days, causing seasonal patterns that vary by location. In the winter, the Northern Hemisphere is tilted away from the Sun, and receives the smallest amount of solar energy than any other time of the year. What can be expected in the Northern Hemisphere during this season?
A) warmer temperatures and decreased daylight
B) cooler temperatures and increased daylight
C) warmer temperatures and increased daylight
D) cooler temperatures and decreased daylight
Answer:
D) cooler temperatures and decreased daylight
Why is the percentage similarity in the gene always lower than the percentage similarity in protein.
Answer:
Synonyms in the genetic code exist and some species only use one synonym to get the same amino acid. The reason why the percentage is low in gene is because it does not involve a lot of processes compared to the proteins which undergo mRNA and tRNA to be coded as amino acids.
Explanation:
pls help ill give brainliest and 5 staarts
Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the help of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d
Tay-Sachs disease follows an autosomal recessive pattern of inheritance, so the unaffected carrier will be the child a.
The correct option is d, a.
What is Tay-Sachs disease?Tay-Sachs is a neurodegenerative disorder, which causes the deficiency of an enzyme called hexosaminidase A.
The enzyme hexosaminidase A present in the lysosome helps in the digestion of fats.
This disorder causes the excess accumulation of lipid or fat in the ganglion cells.
This causes dysfunction of the central nervous system.
The correct option is d, e.
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Which of the following would NOT
inhabit a freshwater biome?
A. Crawfish
B. Catfish
C. Sharks
D. Insects
I
The following that would NOT inhabit a freshwater biome is a Shark. Option C is correct.
What is a habitat?An organism's habitat is the place where it makes its home. Habitat provides all of the necessary environmental circumstances for an organism to thrive.
In conclusion, Crawfish, Catfish, and Insects are all habitats of the freshwater biome.
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Six most common elements in the human body
Explanation:
carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus
Answer:
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
Explanation:
why can't science prove something beyond a shadow of a doubt?
Answer:
Scientific theories can never be proven true beyond all doubt; they can only be supported by a wide body of evidence. Only one of the statements that follow uses the term theory in its correct, scientific sense.
Explanation:
Scientific hypotheses can never be confirmed beyond a reasonable doubt; they must be backed up by a substantial amount of evidence. Only one of the following assertions utilizes the word "theory" in the scientific sense.
Which of the following is the best description of bacterial transformation?
Group of answer choices
A. Introducing new genes into a bacteria cell that the bacteria cell then uses to make proteins
B. Changing a bacteria cell into a different type of cell, such as a virus or protein
C. Providing bacteria cells with optimum conditions to increase the reproduction of the cell
D. Removing genes from a bacteria cell’s chromosome so that the bacteria cell no longer makes those proteins
Answer:
A
Explanation:
Which species is most likely to exhibit clumped dispersion? a. dandelions with seeds dispersed by the wind b. tigers that defend their territories from one another c. a bird that nests in many different types of trees d. a tree that grows only on the banks of streams
The species that is most likely to exhibit clumped dispersion is a tree that grows only on the banks of streams. So, the correct option is D.
What do you mean by Species?A biological species may be defined as a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Clumped dispersion is a type of population dispersion of a particular species. It represents the mechanism of spacing between the individual of a species. It is a common type of population dispersion that takes place through attraction.
Therefore, the species that is most likely to exhibit clumped dispersion is a tree that grows only on the banks of streams.
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Answer:
Answer is D
Explanation:
got it right edmentum
Do you think your classroom population is a typical representation of a larger population such as your entire school
My class can not be a representation of the larger school because my class consists of people of the same age bracket and the same level of study.
What is a representative population?A representative population is a population that reflects the whole. A sample must be taken in such a way that it can effectively reflect the components of the whole.
My class can not be a representation of the larger school because my class consists of people of the same age bracket and the same level of study. The school is composed of different classes occupid by students of different age groups and different levels of study.
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what is the difference between Genetics and environment?
it's child development class help me please
Genetics: that deals with the heredity and are varnation of organisms.
and
Enviroment: that condition by which one is surrounding.
"I think"
During translation, the peptide bond formation is catalyzed by:.
Answer:
RNA (referred to as a ribozyme)
Explanation:
High-fat diets can play a part in the development of __________. A. Breast, colon, and pancreatic cancer B. Ovarian, bone, and skin cancer C. Skin, brain, and prostate cancer D. Pancreatic, skin, and colon cancer Please select the best answer from the choices provided. A B C D.
High-fat diets can play a part in the development of breast, colon, and pancreatic cancer. So, the correct option is A.
What do you mean by High-fat diets?A High-fat diet may be defined as a diet consisting of at least 35% of total calories consumed from fats, both unsaturated and saturated fatty acids.
High fat can be acquired from eating excess fatty compounds. There are a number of foods that ensure excess body fat content. Such foods are meat, eggs, and even milk and products that come out of such foods.
Therefore, High-fat diets can play a part in the development of breast, colon, and pancreatic cancer.
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Answer:
The answer is A :)
Explanation:
Which of the following is a characteristic of all mammals? Question 4 options: lungs hair tail both 1 and 2.
Answer: both 1 and 2
Explanation: common sense
Both 1 and 2 are a characteristic of all mammals.
What are the characteristics of mammals?Characteristics of Mammals are:
The presence of hair or fur.Sweat glands.Glands are specialized to produce milk, known as mammary glands.Three middle ear bones.Specialized teeth.A four-chambered heartThus, Both 1 and 2 are a characteristic of all mammals.
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A tooth has an exposed ______, a constricted ______, and one or more roots that anchor it to the jaw. multiple choice question.
Answer:
crown, neck.
Explanation:
A tooth has an exposed crown, a constricted neck, and one or more roots that anchor it to the jaw.
Which muscle originates on the occipital bone and spines of c7-t12 and inserts on the clavicle and acromion of the scapula?.
Answer:
trapezius
Explanation:
pls help me thank you
Answer:
Your answer would be:
C.) Muscles
The muscular system is composed of cells called muscle fibers. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction.
Explanation:
Have a great rest of your day
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Answer:
C -- Muscles
Explanation:
The muscular system is made up of the bones of the skeleton, muscles, cartilage, tendons, ligaments, and joints.
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Which plant structures are common to all angiosperms?
spores
flowers
cones
endoskeleton
Answer:
Option B. (Flowers) is correct!
Explanation:
A plant structure common to all angiosperms is the flowers, which are reproductive structures formed from four whorls of modified leaves. The angiosperms have two structures that ensure their reproductive success: flowers and fruits, being the flowers the one that forms a cooperative evolutionary relationship with insects, and other animals to help disperse the pollen from the female plant gametophytes.
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A cell has 6 chromosomes during G1. During G2 it has how many chromatids and strands of DNA?
Explanation:
Neuronal cells in G2 phase demonstrate tetraploid (4N) DNA content or, more precisely, possess a nucleus with 46 replicated chromosomes.Neuronal cells in G2 phase demonstrate tetraploid (4N) DNA content or, more precisely, possess a nucleus with 46 replicated chromosomes.
For a cell of 6 chromosomes during G1, its chromatids and strands of DNA are tetraploid (4N) and DNA contents possess a nucleus with 46 replicated chromosomes.
How many chromatids and strands of DNA?A set of chromosomes is simply a one half of a chromosome that has been duplicated.
In conclusion, Chromosomes are replicated prior to cell division, and identical chromosomal copies link together and at their centromeres.
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The sea dog francis drake sailed along the coast of _______
Answer: West African Coast
Explanation:Hawkins sailed with his cousin (and soon-to-be Sea Dog) Francis Drake to the West African coast in order to capture slaves for trade in the Caribbean and South America, privateering along the way.
Is this animal a carnivore or an herbivore? How do its teeth help it obtain food?
Answer: carnivore
Explanation: they have long teeth and can bite through anything
How long does it take for gums to heal after tooth extraction.
Flowering plants have two organ system which are
Answer:
Shoot organ system and root organ system
Question 4 of 5
Which moon of Jupiter is covered in craters?
O A. lo
O B. Callisto
O C. Europa
O D. Ganymede
Answer:
B. Callisto
Explanation:
The moon of Jupiter which is covered with craters is Callisto
Which of these does NOT greatly affect climate?
A. Earth's Tilt
B. Angle of Sunlight
C. Seasonal Changes
D. Location on Earth
Answer:
D...
Explanation:
Explain the difference between a lateral moraine and a terminal moraine.
Answer:
Terminal moraines are found at the terminus or the furthest (end) point reached by a glacier. Lateral moraines are found deposited along the sides of the glacier. Medial moraines are found at the junction between two glaciers.
HELP ME!!!!! What is an important part of scientific methods? there is more then one answer so Select all correct answers.
A. establishing state of the art labs
B. forming conclusions
C. making hypothesis
D. using computers
Answer:
B and C
Explanation:
establishing state of the art labs isn't a part of the scientific method and neither is using computers