Where does all the energy on Earth originate from?
Answer:
The sun
Explanation:
>>>>>>>>>>>>>>>>
Which refers to the highness or lowness of a sound? pitch amplitude frequency softness
Answer:
Pitch
Explanation:
Which of these characteristics might help a plant species survive in an area with limited sunlight?
F) Thick Cuticle
G) Large leaves
H) short steams
J) Bright flowers
Answer:
G
Explanation:
the leaves take in sunlight so bigger leaves would make for more sunlight to be absorbed
T / F Phosphorous is present in nucleic acids but not in proteins
true
False
Answer:
true
Explanation:
Answer:
false
Explanation:
proteins have some phosphorus
how many bases makes one amino acid?
Answer:
hey mate.....
Explanation:
This is ur answer.....
It takes 3 bases to make 1 amino acid and 9 bases to make 3 amino acids.....
hope it helps.....
When a mass of hydrogen has enough density, it begins to fuse the hydrogen atoms together. This fusion process creates large amounts of heat and light.
When a mass of hydrogen begins the fusion process, it is classified as a —
star
nebula
galaxy
planet
Answer:
star
Explanation:
a star forms with hydrogen
When a mass of hydrogen begins the fusion process, it is classified as a star. The correct option is A.
What is a star?From the moment the first gas cloud begins to compress to the time the star is formed and begins to shine like the Sun, the process of star creation takes roughly one million years.
When a quantity of hydrogen is dense enough, the hydrogen atoms start to fuse together. It also produces light and heat. A portion of the hydrogen's mass is transformed into energy during the process.
Deuterium and tritium combine to form an atom of helium in the simplest fusion reaction. Fast particle density, close particle closeness, and a high rate of speed are three requirements for nuclear fusion.
A buildup of gas and dust falls under the influence of gravity to generate stars.
Therefore, the correct option is A. star.
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All ecosystems need what two things in order to survive?
Answer:
Food and water!
Explanation:
Answer:
Air, sunlight, soil, rocks, minerals, water and precipitation
Explanation:
These are all things the ecosystem needs to survive
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If a disease disrupts the cell's ability to make proteins, which of these organelles is it most likely
to attack?
1-Ribosomes
2-Smooth ER
3-Golgi bodies
5-Cell membrane
Answer:
I think Ribosomes
Explanation:
why is the number of environmental scientist expected to increace
bc there are more and more kids who think they can do it then they do it and hate it sry for bad answer but it might be bc people are starting to realize what there doin to earth.
Which feature is characteristic of a bottomland hardwood forest?
O A. Trees that grow in a floodplain
B. Trees that have deep roots
O C. Trees that are surrounded by wetlands
O D. Trees that form an ecological island
Answer:
A. Trees that grow in a floodplain
Answer: A. Trees that grow in a floodplain
Explanation:
What are some design limitations of making a scale model of the Milky Way galaxy?
Answer:
(One light-year = 9.5 x 1012 km) Would it be difficult to make a scale model of the Milky Way Galaxy showing both the size of the Sun (diameter = 1.4 x 106 km), as well as its distance from the center of the galaxy (30,000 light-years)? size (TLS) and true smallest size (TSS) in cm. Then the units will cancel out.
Explanation:
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Scientists deployed a small highly advanced scientific rover to a nearby planet. The rover's mission was to search for life on this planet. After many months of soil analysis and extensive tests the rover sends mission control the photo below of a lifeform it has discovered. What is a likely conclusion scientist could deduce from the photo of this lifeform?
Answer:
The life form is unicellular.
The life form is a prokaryote.
Explanation:
Scientists deployed a planetary surface exploration device (rover) to a nearby planet and other planetary mass celestial bodies.
The rover's mission was to search for life on this planet.
After many months, the following conclusions have been obtained.
The life form is unicellular.
The life form is a prokaryote.
Which base is found in RNA but not in DNA? adenine guanine uracil cytosin
Answer:
uracil
Explanation: looked it up
Uracil.
I took the test
what is meant by a turgid cell
Answer:
A turgid is. cell that has turgor pressure
Explanation:
Turgor pressure is the force within the cell that pushes the plasma membrane against the cell wall. The pressure exterted by the osmotic flow of water is called Turgidity.
Which abiotic factor that would affect the ability of a species of tree to survive in a particular habitat
Answer:
Availability of minerals in the soil
What does the pituitary gland, shown in the image below, do?
Answer:
it is D duh
Explanation:
The pituitary gland releases hormone to regulate the endocrine system. The correct option is D.
What is pituitary gland?The pituitary gland is situated at the bottom of the brain and is no bigger than a pea. Nerve fibers and blood vessels connect the pituitary gland to the hypothalamus which is a component of the brain that affects the pituitary gland.
Your pituitary gland's main function is to produce and release several hormones that aid in important bodily functions such as growth. Metabolism and Reproduction.
Because it produces hormones that influence other endocrine glands, the pituitary gland is known as the "master gland" of the body. It is divided into two parts: anterior and posterior pituitary.
Thus, the correct option is D.
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why have apple developers patented their trees and trademarking the names of the apples?
Answer:
While patenting or trademarking the apples does secure compensation for the plant breeders who developed the varieties, it does not ensure the quality of the product or the market supply because it is so difficult to require such standards in produce.
Explanation:
Which of the following are true about negative feedback mechanisms? Check all that apply. They control the muscular contractions during childbirth. They make internal changes to achieve a set point. They let you know you need to put on a jacket in cold weather. They help adjust the external environment.
Answer: Both B and C
B) They make internal changes to achieve a set point.
C) They let you know you need to put on a jacket in cold weather.
Explanation:
The true statement about negative feedback mechanisms are:
B) They make internal changes to achieve a set point.
C) They let you know you need to put on a jacket in cold weather.
What is a negative feedback mechanism?A negative feedback mechanism is sometimes referred to as negative feedback homeostasis in biology. It is a pathway that is activated by an output deviation and results in output changes that are opposite to the deviation that caused the pathway to be activated.
Thermoregulation is a type of negative feedback mechanism. When the temperature of the body changes, the mechanics change the blood sugar level.
Thus, the correct options are B. They make internal changes to achieve a set point and C. They let you know you need to put on a jacket in cold weather.
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An element has 2 valence electrons and 3 energy levels. It is located in
group
Answer: 3
Explanation:
All elements in group 3 have 3 levels of energy.
Na (sodium) has 3 valences the inner has 2 electrons, the middle has 8 electrons and the outer has 1 electron.
This will continue across the group 3 adding one more electron to the outer valence until Ar (argon).
Remember the Octet rule of 8..?
We have that for the Question " An element has 2 valence electrons and 3 energy levels. It is located in group" it can be said that its the
Group three(3)
From the question we are told
An element has 2 valence electrons and 3 energy levels. It is located in
group
Generally
We have that the energy level of three is synonymous to elements of group three
Therefore
Sodium has has a 3 valences which continues to add electrons to its outermost shell up untill the element Ar
Hence
its the Group three(3)
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this transport is considered to be opposite of diffusion because it moves molecules from one are of low concentration to an area of high concentration against the concentration gradient
A) osmosis
B) active transport
C) facilitated diffusion
D) mitosis
Answer:
b)active transport
Explanation:
Define Hydrophobic. Which part of the membrane is
hydrophobic?
lin larma (cell)
hydrophobic is the resistance of water (doesn’t mix). the lipid tails are hydrophobic.
6. How many different types of connective tissue are identified in the human body?
a. 10
b. 12
C. 8
d. 6
While science is generally firm in its conclusions, valid, new data regularly occurs; this forces scientists to re-evaluate or refine their hypotheses and theories. This best shows that science is:
replicable
flexible
fake
rigid
Answer:
replicable
Explanation:
becuase if science isn't replicable there isn't insufficient data.
The diagram below shows a student conducting a laboratory experiment. Using one or more complete sentence, describe one safety procedure the student must follow as represented in the diagram.
Answer:
Wear Protective Eye Wear and Lab Coat
Explanation:
As an animal grows, its mass increases. The matter that makes up this new mass comes mostly from
A. food that the animal has eaten and changed into other organic compounds.
B. air and water that the animal changes into organic compounds using the energy from sunlight.
c. organic compounds that the animal breaks down into water and carbon dioxide
D. substances that the animal has eaten but cannot digest.
Answer:
D
Explanation:
The caterpillar becomes bigger and bigger as it consumes food, until it is eventually prepared to change into a butterfly. Thus, option D is correct.
What are the matter involving in the growth of animals?They also get their energy from sunlight, which is utilized to maintain the conditions required for living.
Animals consume food and drink to get the substance and energy they require for their biological activities. Plants are one type of organism that can produce its own sustenance.
Metamorphosis is the process by which animals undergo significant changes throughout their life cycle. A mother butterfly, for instance, deposits eggs that develop into young caterpillars.
Sugars, a source of both energy and substance, are produced by plants using the energy from sunshine.
Therefore, substances that the animal has eaten but cannot digest.
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The table shown was made to compare and contrast photosynthesis and cellular respiration.
Which row(s) contain errors?
A) Rows 1 and 4.
B) Row 4.
C) Rows 2 and 3.
D) Row 3.
Answer:
Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water. ... For example, both processes synthesize and use ATP, the energy currency.
Explanation:
i think it is c
a. hunter-gatherer period
what is this?
Answer:
Hunter-gatherer culture is a type of subsistence lifestyle that relies on hunting and fishing animals and foraging for wild vegetation and other nutrients like honey, for food. Until approximately 12,000 years ago, all humans practiced hunting-gathering.
Explanation:
Which statement would not be included in a summary of the cell theory?
O The cell is the basic unit of organization.
O All cells contain a nucleus that controls cell division.
O All organisms are made up of at least one cell.
O All cells come from other preexisting cells.
Answer:
All cells contain a nucleus that controls cell division.
Explanation:
This is not part of the cell cycle because prokaryotes (bacteria) do not have nuclei although they are made of cells
Which of the following characteristics would be the most accurate in hierarchically classifying a newly discovered organism? habitat or
behavior or
genetic material
or reproductive strategies
Answer:
Genetic material
Explanation:
Living organisms have been hierarchically classified into groups. For a newly discovered organism, the most accurate characteristics that could be used to classify such organisms will be the GENETIC MATERIAL. The genetic material shows the evolutionary relationship between the new organism to ones that have existed and been classified.
Organisms with similar genetic characteristics are similar to one another, hence, that can be used as an accurate means of classification. The DNA of an organism can serve as an evidence to place an organism in a particular hierarchical group called Taxonomy.
How do these attachments relate to the function of the kidneys?
O A The kidneys remove excess water from the urinary bladder and return the water to the bloodstream.
OB. The kidneys filter waste from the blood, and they remove the waste from the body through the urinary bladder.
O c. The kidneys allow blood and fluld to pass into the urinary bladder where it is filtered, and the waste is removed through urine.
O D. The kidneys pull waste and fluid from the urinary bladder and add it to the bloodstream, where it is removed through other organs.
Answer:
The answer is C.
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