Answer:
Seafood Watch identifies seafood that has been harvested in a sustainable manner and promotes this seafood over varieties that were not sustainably harvested. The idea is that only the fishermen utilizing sustainable practices are rewarded financially and will therefore out compete their competitors.
Explanation:
Tracks the location, movement, and amount of precipitation in storms
radar or satellite
Which of the following uses of genetic engineering would most likely be debated
Who is generally accepted as Tutankhamun's father?
Select one:
a. Akhenaten
b. Ramesses II
c. Thutmose II
d. Mentuhotep VIepted as Tutankhamun's father?
Do the optimal conditions for catalase functioning that you found correspond with the conditions in the mammalian liver where it came from?
Which process transfers pollen from the male reproductive structures to the female reproductive structures?
The processes known as pollination which is responsible for the transfer of pollen from the male reproductive structures to the female reproductive structures
Explanation:The sperms are produced in the male sex organs which are separate from the female reproductive organs which is responsible for the production of eggs.The plants sperms are known as pollen grains. As plants are unable to move, so this transfer is done by the process of pollination.Pollination can be done by air or water movement.In air pollination, pollen grains fly through air to reach the stigma of female reproductive organs of plants.Answer:
pollination
Explanation:
big brain
Sponges, members of the Porifera, might be the simplest multicellular animals on Earth. They do not have any tissues, organs, or organ systems. In order for sponges to have evolved, what MUST have happened first? A) the organization of cells into groups B) symbiotic relationships among various cells C) the evolution of cells with nuclei and organelles D) the development of the cell wall as a protective mechanism
Answer:
C) the evolution of cells with nuclei and organelles
Explanation:
Sponges are eukaryotes and have well define membrane bound nucleus and organelles in their cells. They lack tissues and hence, do not need organization of cells into groups. Evolution of sponges would require origin of eukaryotic cells from the ancestral cells. Being animals, they lack cell wall around their cells.
The evolution of cells with nuclei and organelles was a fundamental development that facilitated the evolution of basic multicellular organisms such as sponges.
Explanation:
In order for sponges or Porifera, which are the simplest multicellular animals on Earth, to have evolved, there must have been an important foundational development. That development was C) the evolution of cells with nuclei and organelles. This cellular evolution marked a significant transition from unicellular organisms to multicellular organisms. Basic cells with no nuclei or organelles, namely prokaryotic cells, evolved into more complex cells with nuclei and organelles, termed eukaryotic cells. Fundamental multicellular life forms such as sponges could have thereafter originated based on the additional complexity offered by these eukaryotic cells.
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What does an H-R diagram relate a star's temperature to?
a.
the amount of heat created by the star
c.
the type of star
b.
the elements the star contains
d.
the star's absolute magnitude
Answer:
The correct answer is option d, that is, the star's absolute magnitude.
Explanation:
The Hertzsprung-Russell diagram or the H-R diagram also called the color-magnitude diagram. It demonstrates the association of the color of the stars (temperature) with the luminosity of the star or absolute magnitude. The stars apparent magnitude at a distance of ten Parsec from Earth is known as the absolute magnitude of the star.
The process of photosynthesis converts carbon atoms from carbon dioxide into _______. A. sugars B. hydrogen C. oxygen D. salts
Answer:
Sugars is the answer
The process of photosynthesis converts carbon atoms from carbon dioxide into sugars. Therefore, option A is correct.
What is photosynthesis?In the physicochemical process known as "photosynthesis," green plants employ light energy to propel the synthesis of organic molecules. In the end, sunlight is the sole source of energy for all life on Earth. The foundation of life on earth is the photosynthesis process, which plants use to harness solar energy.
Chloroplasts, which house the chlorophyll in plants, are where photosynthesis occurs. The thylakoid membrane, a third inner membrane that creates long folds inside the chloroplast and is bordered by a double membrane, is present inside chloroplasts.
It converts carbon atoms from carbon dioxide into sugar. Hence, option A is correct.
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How do sponges differ from flagellate protists
Sponges have specialized cells that resemble the parts of the same animal unlike a group of individual cells composed of individual organisms. Protists are unicellular, and live in isolation even when there's a bunch of them stacked close to each other. They are unspecialized cells.
Sponges have a body skeleton that is not composed of cells. They perform sexual reproduction by forming both the male and the female gametes. All these features are absent in the protists.
Where is oxygen found or obtained from?
Answer:
Oxygen is obtained from photosynthesis process.
Explanation:
Oxygen is one of the most important element required for survival of living organism. Living beings inspire oxygen and expire carbon dioxide which is collectively called as respiration and is considered as most important biological process.
Plants prepare their own food through the process called photosynthesis. It is process through which the plants uses carbon dioxide and water as reactants and gives out glucose and oxygen as the end product.
The released product is sugar and gas, in which the sugar is consumed as food by other living organism and the gas called oxygen is used for respiration and other biological process. Thus it can be inferred that oxygen is obtained from process called photosynthesis.
natural selection is best described as
30 Points! Peter and Rosemary Grant: What did they observe? What did they conclude? Brief Goals they studied.
which characteristic can be inherited
A) long toes
B) short temper
C) sense of humor
D) acting ability
Long toes can be inherited from parents to offspring in organisms, considers a heritable trait, hence option A is correct.
What is a heritable trait?A heritable trait is a kind of offspring trait that matches the parents' related trait more than it fits the same trait in a random individual in the population.
It is a measurement of how well differences in people's genes describe differences in their traits. Sense of humor is not a heritable trait, it is a psychological condition that is different in parents and offspring.
A gene is key to the transmission of traits from parents to offspring, it is a DNA sequence that is expressed in the form of protein.
Therefore, the long toe is a character which can be inherited from parents, hence option A is correct.
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Identify the type of feedback mechanism that results in the rate of a process increasing as the concentration of the product increases.
A) neutral feedback
B) positive feedback
C) negative feedback
D) oscillating feedback
The correct answer is option B
In a positive feedback the presence of a chemical or product intensifies or increases the resulting action/product. For example , during child birth the release of oxytocin intensifies the process of contraction. Another example is of blood platelets which when increase in number also enhances the rate of the blood clothing. While in a negative feedback the presence of a chemical or product reduces or discourages the resulting action/product.
Describe four ways in which natural process add harmful particles to the air
The wind blows particles of molds and plant pollen; forest fires, soil erosion, and dust storms add particles of smoke and dust; erupting volcanoes spew out clouds of dust, ash, and poisonous gases.
Which type of energy causes the biggest concerns about its impact on the landscape?
Answer:
Which type of energy causes the biggest concerns about its impact on the landscape?
Explanation:
The use of wind energy, like any other human action, inevitably affects the environment, and its negative effects are felt in the soil, flora and fauna of the place where the wind farms are installed. But in spite of everything, these problems can be faced and minimized through proper planning.
The answer is: Wind energy.
In which kingdom would be an immovable, multicellular, eukaryotic , autotroph belong
The answer is Plantae kingdom. The mentioned characteristics best describe the Kingdom. The next probable group would have been the Protoctista Kingdom but some move by use of flagella and cilia (hence not immovable). Protoctista Kingdom has heterotrophs too. The other known Kingdoms are Animalia, Fungi, and Prokaryotae.
Please help quickly! I give brainliests!! WORTH 7 POINTS!!!!
Consider the following statement:
Organisms that reproduce asexually are at a higher risk of extinction that organisms that reproduce sexually.
Do you agree or disagree? Explain your answer.
Describe three adaptive advantages of the mammalian autonomy
NEEED HELP ASAP PLSSSSSSS POINTS AND BRANILIEST
1) What describes the unusually large release of plasma from the sun's corona?
Auroras
CME
Solar wind
Solar flare
__________________________________________________________________
2) The table below compares the distances between two bodies.
Comparison of Distance
Bodies Distance
X and Y 30.2 AU
Y and Z 7.2 light years
Based on the table, which of the following statements could be true?
X and Y are both within the solar system.
Y and Z are both within the solar system.
X and Y are farther apart than Y and Z.
Y and Z are both present on Earth.
_____________________________________________________________________
Answer:
1) CME describes the unusually large release of plasma from the sun's corona
2) X and Y are both within the solar system.
Explanation:
1) The coronoid mass ejection (CME) is a wave of radiation and solar wind released from the sun during the maximum solar activity.
This is a very dangerous wave because it might cause huge damages to the electrical system and the communication system on earth.
The coronoid mass ejection throw important quantities of material and electromagnetic radiation, beyond the solar surface.
The ejected material is plasma from the sun´s corona composed principally of electrons and protons, and might also have small quantities of heavier particles such as helium, oxygen and even iron.
2) X and Y are both within the solar system.
The farthest distance from the sun belongs to Pluton, which is located at 39.53 AU away from the sun. X and Y are located at 30.2 AU, which means that they are within the solar system.
Considering that 1 AU = 1,58125e-5 light-years, then Z might be located outside the solar system.
A nonnative species of fish is introduced into a leg which would most likely prevent this fish for becoming an invasive species
A- The lake ecosystem has no other larger fish
B- The fish shares a niche with another species
C- There are no organisms that would eat this fish
D- The fish can thrive in the temperature of the week
The answer is B. Invasive species are successful in novel environments due to lack of a natural predator or competition. Therefore if the non-native share a niche with other fish in the lake ecosysem, there will definitely be competition for resources. This could lead to competitive exclusion of one species or resource partitioning between the species. Consequently, the non-native fish species will not invade the new environment unchecked.
Answer: the fish shares a niche with other species, trust me
Explanation:
If most of the Earth is covered with water, how can there be water shortages?
Name two ways carbon (usually in the form of CO2) enters the atmosphere.
Respiration (exhaling) by animals and by burning of fossils fuels.
Why is carbon important in biology?Carbon is an important element as it readily forms bond with other atoms such as oxygen and hydrogen. This is important in the formation of organic molecules.
Carbon is an important constituent of many biomolecules including DNA and RNA.
Carbon is a prime greenhouse gas which traps the sun’s energy coming on the earth. Carbon is present in the form of CO2 in the atmosphere of the earth.
Carbon is a fossil fuel. It is found in the dead remains of plants and animals of the pre-historic era. The age of fossil fuels is determined by carbon dating technique.
Carbon is important as plants take up carbon dioxide for photosynthesis. Plants also undergo carbon fixation for producing carbon rich compounds.
Therefore, carbon is important to sustain life on earth.
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During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?
The complementary DNA sequence to 5'-TATGA-3' is 3'-ATACT-5', following the base pairing rules of A with T and G with C during DNA replication.
During DNA replication, the sequence of nucleotides that would bond with the DNA sequence 5'-TATGA-3' is 3'-ATACT-5'. DNA replication involves the pairing of complementary bases where adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Therefore, each nucleotide in the given sequence pairs with its complement on the new strand being formed.
Here's how the pairing works:
The first 'T' in the original sequence pairs with an 'A'
The 'A' pairs with a 'T'
The 'T' again pairs with an 'A'
The 'G' pairs with a 'C'
The last 'A' pairs with a 'T'
So, the complementary strand in the direction of 3' to 5' will be 3'-ATACT-5'.
what are unisexual organisms
Which statement is correct?
Block A has the greatest density.
Block B has the greatest density.
The density of Block A is equal to the density of Block B.
The density of Block B is equal to the density of Block C.
Answer: Block A has the greatest density.
Explanation:
Density is defined as the mass contained per unit volume.
[tex]Density=\frac{mass}{Volume}[/tex]
To calculate the volume of cuboid, we use the equation:
[tex]V=lbh[/tex]
where,
V = volume of cuboid
l = length of cuboid
b = breadth of cuboid
h = height of cuboid
Putting values in above equation, we get:
a) Block A:
mass = 3 kg
Volume = [tex]2cm\times 4cm\times 6cm=48cm^3[/tex]
[tex]Density=\frac{3kg}{48cm^3}=0.0625kg/cm^3[/tex]
b) Block B:
mass = 1 kg
Volume = [tex]2cm\times 4cm\times 6cm=48cm^3[/tex]
[tex]Density=\frac{1kg}{48cm^3}=0.02kg/cm^3[/tex]
c) Block C:
mass = 2 kg
Volume = [tex]2cm\times 4cm\times 6cm=48cm^3[/tex]
[tex]Density=\frac{2kg}{48cm^3}=0.04kg/cm^3[/tex]
Thus Block A has greatest density.
Which type of biotechnology is used by scientists when they alter the DNA of a plant to make it grow faster?
Genetic engineering because the genes of the plants were modified
Genetic engineering because it is always helpful to society
Artificial selection because the DNA of the plant was changed
Artificial selection because it always produces desirable traits
The branch of biology which deals with technology along with the living cells is called biotechnology.
The tools use for biotechnologies are:-
Alien DNA PlasmidVectorNucleasesDNA ligaseScientists use genetic engineering to alter the DNA sequence of an organism to get the desired product.
Therefore, scientists use Genetic engineering because the genes of the plants were modified.
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Explain the phrase “the dose makes the poison”
Paracelsus was a 16th century Swiss German physician, alchemist, astrologer who found the discipline of toxicology. He came up with this basic principle of toxicology: The dose makes the poison.
“All things are poisons, for there is nothing without poisonous qualities. It is only the dose which makes a thing poison.”
So many of us misunderstand basic chemistry and what ‘toxic’ really means. I can relate. Chemistry was my WORST subject in high school. Most of what I have learned (and since become interested in) has been cultivated through my PhD studies and in projects since then.
Toxicity is an indicator of how poisonous a substance is to a biological entity. Any chemical can be toxic if absorbed or consumed in large enough amounts. Chemistry is all around us and we are all comprised of chemicals (matter). Some chemicals are man made others occur naturally: in our bodies, manufactured in plants, in our food and in the air we breathe. In fact, there are more naturally occurring chemicals than man-made ones. Chemical reactions and interactions in our bodies occur all the time.
Joni Kamiya-Rose posted this status update the other day on Facebook which, in turn, inspired my blog post for today.
To Joni’s last point… YES, wouldn’t that be great! I can’t imagine anyone who wouldn’t want safer options.
To (further) clear up misunderstandings and provide some context on toxicity, I crafted this table. In toxicology, the median lethal dose, LD50 (see column 3) is the dose required to kill half the members of a tested population after a specified testing time.
The test was developed by J.W. Trevan in 1927. In the table , I outline a variety of familiar (some less familiar) materials and their toxicity levels. Please note: the LD50 levels outlined in the table below are based on oral ingestions by rats. Toxicity rankings are based on the EPA’s categorization (I through IV) (Title 40 of the Code of Federal Regulations).
i hope this expliand it had to do little research
How are the energy of wind and flowing water each related to solar energy?
URGENT PLEASE HELP
DNA is comprised of smaller segments of genes that code for the production of a specific protein. The role of RNA polymerase in the initiation step of transcription is to?
A)bind and unwind the double helix.
B)recognize the promoter sequence of the gene.
C)all of the above
D)determine where gene synthesis will start.