You are looking at four tall pea plants. What are their phenotypes and genotypes, respectively?
tall; Tt or TT
short; tt
Tt or TT; tall
tt; Short
what 3 ways do science influence society
During the winter time, the total number of hours of sunlight decreases. What effect would this have on the process of photosynthesis?
A) The rate of photosynthesis would decrease and less glucose would be produced.
B) The rate of photosynthesis would increase and more glucose would be produced.
C) The amount of available sunlight does not influence the rate of photosynthesis.
D) It would have no effect on plants having needles instead of leaves, that stay green all year long.
Answer: A) The rate of photosynthesis would decrease and less glucose would be produced.
Explanation: Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.
Photosynthesis is the process used by plants, algae and certain bacteria to convert energy from sunlight and turn it into chemical energy in the form of glucose which is used a s a source of energy by many organisms.
[tex]6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2[/tex]
Thus decreasing the amount of sunlight would decrease the rate of photosynthesis and less glucose will be produced.
Your eye color, sex, and hair color are all determined by the DNA in your genes. Where are these genes located?
A) proteins
B) centrioles
C) chromosomes
D) red blood cells
Answer: The correct answer is C) Chromosomes.
Genes can be defined as the segments of DNA ( deoxyribonucleic acid) that code for a particular protein. The protein formed corresponds to a particular trait of the organism. ( like eye color, hair color).
Genes are located on the chromosomes ( thread like structures that are made up of DNA).
Thus, option C) is the right answer.
1. Which of the following is not a
contributing factor to the uneven
warming of Earth’s surface?
Select one:
a. Different surfaces warm at different
rates.
b. The Sun is farther from Earth during
the winter.
c. The Sun’s ray hit the surface at
different angles
d. Different surfaces retain energy
differently.
The option that does not contribute to Earth's uneven warming is 'The Sun is farther from Earth during the winter.' The other options relate to how sunlight interacts with Earth's surface and atmosphere, which are true contributors to the uneven warming of the Earth.
Explanation:The student asks which factor does not contribute to the uneven warming of Earth's surface. The incorrect option among those provided is b. The Sun is farther from Earth during the winter. While it's true that Earth's orbit is elliptical and the distance from the Sun changes slightly over the year, this variation is not significant enough to cause the seasons or affect the uneven warming of the Earth's surface. Instead, the uneven warming is mainly due to the other three factors: different surfaces warming at different rates, the Sun's rays hitting the surface at different angles, and different surfaces retaining energy differently. The way the Sun's rays strike Earth varies depending on factors like the angle and duration of sunlight, which are influenced by Earth's tilt and position in its orbit around the Sun. During summer, for example, the Sun's rays hit the Earth more directly, causing more intense and concentrated warming.
In general, the frequency with which crossing over occurs between two linked genes depends on what?
A. how far apart they are on the chromosome
B. the phase of meiosis in which the crossing over occurs
C. the characters the genes code for
D. whether the genes are on the X or some other chromosome
E. whether the genes are dominant or recessive
Which of the following statements is true about scientific theories?
A. Scientific theories become scientific laws.
B. Scientific theories are never proven.
C. Scientific theories become hypotheses.
D. Scientific theories summarize patterns found in nature
Answer: D. Scientific theories summarize patterns found in nature.
A scientific theory is a model that explains the facts about nature on the basis of observations, experimentation and reasoning. A scientific theory can be proved by scientific methods involving procedures, measurements, observations and evaluation of results. Therefore, a scientific theory validate the facts of nature and summerizes patterns found in nature.
Leaves with carotenoid pigment turn _________ during the fall.
a. red and green
b. yellow and orange
c. green
d. brown and yellow
When evaluating a source, which of the following is the most important thing you should ask yourself?
Where and when was the research published?
Answer:
c
Explanation: i got it right
The solubility of a solute is the largest amount of solute that can dissolve in a certain quantity of __________.
solute
liquid
solvent
solution
In a chemical reaction, products must equal __________.
elements
molecules
reactants
atoms
1. The right answer is Solvent
The term "solution" would not be applicable here because it designates the solute + the solvent ".
In chemistry we prefer to use the term solvent rather than liquid.
The solubility of a compound can be defined as follows: a maximum amount (g or mole) of solute dissolved in 1 liter of saturated solution according to precise conditions of temperature, nature of the solvent and the solute.
2. The right answer is Reactant.
During a chemical transformation the atoms of the reagents combine in different ways to form the products but no atom disappears or does not appear so the total mass does not change.
During a chemical transformation, the total mass of the disappeared reagents is equal to the total mass of products formed.
Answer:
#1 - The answer would be Solvent
#2 - The answer would be Reactants
A bird stalks, kills, and then eats an insect. Based on its behavior, which pair of ecological terms describes the bird?
herbivore, decomposer
producer, heterotroph
carnivore, consumer
autotroph, herbivore
Answer: Carnivore, consumer
Explanation:
The carnivores are the animals that feed on the smaller organism for their energy. They can be as small as a bird and as bid as a lion.
Consumers are the organism that feed on the producers for their energy needs. Here, the bird is omnivores that feed on insect as well as on plants for their energy needs.
A bird feeding on insect is an example of consumer, carnivore.
which is predicted by the theory of special creation?
a. species change by adaptation to their environment
B. fossils should show differences in species as they change over time
C. vestigial organs should be similar to functional forms in ancestral species
d. there should be no nonfunctional structures in organisms perfectly adapted to their environment ...?
The theory of special creation predicts that there should be no nonfunctional structures in perfectly adapted organisms, contrasting with evolutionary theory which supports adaptation and change over time.
The theory of special creation predicts that there should be no nonfunctional structures in organisms perfectly adapted to their environment. This viewpoint is based on the belief that each species was created individually and perfectly suited to its environment from the outset, making the idea of vestigial organs or structures unnecessary according to this theory. In contrast, evolutionary theory, supported by evidence such as the presence of vestigial structures and fossils indicating gradual changes in species over time, suggests that organisms do change and adapt through natural selection and shared ancestry.
The Earth consists of a variety of different organisms. Despite their diversity, however, some similarities on the structural and metabolic levels may be seen. These similarities can be attributed to
The right answer is it can be attributed to similarities among organisms in proteins and nucleic acids (especially in their coding regions in their genome).
Genomes consist of coding regions, which correspond to genes, and non-coding regions. The coding part is the one that gives the proteins that are involved in the structure and metabolism of the individuals. if two individuals have a similar protein-giving genome, then they will probably have the same structure and metabolism.
Which of the following statements about the environmental movement is true?
a.
It incorporates the conservation movement.
b.
It is a purely social movement.
c.
It does not include the green movement.
d.
It seeks to address predominantly social issues.
Answer:
a
Explanation:
What type of vegetation would you expect to find on newly formed volcanic islands?
The type of vegetation that would you expect to find on newly formed volcanic islands is the abundance of lichens.
What do you mean by Vegetation?Vegetation may be defined as a process that significantly involves the collection of plant species and the ground cover they provide. These plants are togetherly found in a particular area or habitat.
Lichen belongs to the family of pioneer species that first colonize in barren soil. There is a lack of nutrients on newly formed volcanic islands still, but lichens are able to adapt themselves by secreting some chemicals in the infertile or barren soil and making it somehow nutrient rich.
Therefore, the type of vegetation that would you expect to find on newly formed volcanic islands is the abundance of lichens.
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What is the angle supplementary to the angle measuring 165°?
Final answer:
The angle supplementary to an angle measuring 165° is 15°.
Explanation:
The angle supplementary to an angle measuring 165° is the angle that, when added to 165°, will result in a sum of 180°. Since supplementary angles add up to 180°, we can subtract 165° from 180° to find the measure of the supplementary angle.
180° - 165° = 15°.
Therefore, the angle supplementary to the angle measuring 165° is 15°.
Siberian Huskies have two layers of fur. The outside layer is rough and coarse, while the inner layer is very dense and thick. Which theme of biology describes this phenomenon?
Evolution explains unity and diversity through adaptation.
Structure and function are related in biology.
Organisms must maintain homeostasis.
All of the above are correct.
Answer: All of the above are correct.
Explanation:
The siberian huskies live in a cold environment. This is because of the fact that they are adapted to have a two layered fur so as to maintain their homeostasis and adapt to the cold environment. This is the basis for the evolution of these huskies. Thus it can be said that the structure and function in the biology are related. The two layered fur will help in retaining the heat.
How can the carbon in sediments reach the atmosphere?
A.decomposition, fossil fuel formation, fossil fuel emissions
B.decomposition, diffusion, evaporation
C.cellular respiration, diffusion, transpiration
D.photosynthesis, organic carbon, cellular respiration
...?
Answer: A. decomposition, fossil fuel formation, fossil fuel emission.
Decomposition is the process of degradation and decaying the plant and animal waste below the earth's sediments. This buried matter remain beneath the earth surface for million's of years as a result of this fossil fuels are produced. With the use of fossil fuels by human activity resulted in emission of fossil fuels in the earth atmosphere.
The processes that release carbon sediments in the atmosphere are decomposition, fossil fuel formation, fossil fuel emissions; option A.
What are the processes that release carbon sediments in the atmosphere?Carbon sediments can be released into the atmosphere through the following processes:
Decomposition: this is when molecules containing carbon decompose and release carbon into the atmosphere fossil fuel formation: during the process of formation of fossil fuels, carbon molecules are released into the atmosphere fossil fuel emission: when fossil fuels are burnt, they release carbon sediments in the atmosphere.Therefore, the processes that release carbon sediments in the atmosphere are decomposition, fossil fuel formation, fossil fuel emissions; option A.
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Climate is described as what
watson and crick figured out what process
Final answer:
Watson and Crick figured out the structure of DNA by deducing its double-helix structure using data from Rosalind Franklin's X-ray crystallography experiments.
Explanation:
Watson and Crick figured out the structure of DNA. In the 1950s, they worked together at the University of Cambridge and used data from scientist Rosalind Franklin's X-ray crystallography experiments to deduce the double-helix structure of DNA. This breakthrough discovery earned them the Nobel Prize in Medicine in 1962.
Which would give the best biochemical evidence of evolution?
A .lipids
B. proteins
C. nucleic acids
D. carbohydrates
Nucleic acid give the best biochemical evidence of evolution. Thus option C is correct.
What is nucleic acid?Nucleic acids are the main information-carrying molecules of the cell, and, by directing the process of protein synthesis, they determine the inherited characteristics of every living thing.
Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.
The more similar their DNA is, the more similar their proteins will be and the more closely related the organisms are likely to be. Thus, scientists use biochemical evidence to establish how organisms have evolved.so, option C is correct.
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Purebred dogs are first assigned the same litter number until they are individually registered with a name. Then the dogs will be assigned a unique registration number with a dog registry. Many people choose to have a microchip implanted in the dog so that it can be read to immediately find the dog's owner.
Which of the following relations is not a function?
A. (registration number, litter number)
B. (microchip number, registration number)
C. (litter number, microchip number)
D. (microchip number, litter number)
Answer:
it's C
Explanation:
Bright-field microscopes are used for most microscopic work. True or false.
which process results in the production of ammonium?
Most of today’s environmental problems began during which period(s) in human history?
What list describes the diet of an omnivore?
a. mice and rabbits
b. fish and insects
c. fish and berries
d. rabbits and insects ...?
The right option is; c. fish and berries
Omnivores are animals that obtain their energy and nutrients by feeding on both plants (like herbivore) and animals (like a carnivore). Diets of omnivores include both plant foods such as fruits, vegetables, grains, and animal foods (meats, fishes, insects). Examples of omnivores are humans, bear, pig, chimpanzee and rodents.
How does "shotgun" DNA sequencing work? ...?
the formation of frost on a cold window panel is an example of which of the following...
A. Sublimation
B. Condensation
C. Deposition
D. Transpiration
Which choice best describes the end product meiosis?
A. produces 2 identical daughter cells
B. produces 4 identical daughter cells
C. produces 2 genetically different daughter cells
D. produces 4 genetically different daughter cells
Which statements are true of a white dwarf?
A) It has a red shell.
B) It is the result of the core collapse of a low-mass star that sheds its outer layers.
C) It emits massive amounts of light compared with other stars.
D) It strongly attracts all matter or energy that comes near it.
E) It cools down to become a black dwarf.