The density of 10 g of silver is 10.5 g/cm3. What would be the density of 5 g of silver?
A. 1.05g/cm3
B. 5.25g/cm3
C.10.5g/cm3
D.21.0g/cm3
Answer:
1.01 x 10'4 G :)
Explanation:
We are given the density and volume, both of which have good units so all we have to do is rearrange the equation to solve for the mass..
Mendel came up with his Law of Independent Assortment through his investigations studying ?
whether or not the inheritance of one trait affected the other.
simple monohybrid traits such as plant height.
the passing down of dominant seed shape to offspring.
how self-pollination affects the second filial generation.
Answer:
A. whether or not the inheritance of one trait affected the other.
Explanation:
I just had this question on my exam :)
Microcystis aeruginosis is a freshwater photosynthetic cyanobacterium. When temperatures increase and nutrients are readily available in its pond habitat, M. aeruginosis undergoes rapid cell division and forms an extremely large, visible mass of cells called an algal bloom. M. aeruginosis has a short life span and is decomposed by aerobic bacteria and fungi. Identify the metabolic pathway and the organism that is primarily responsible for the change in oxygen level in the pond between times I and II AND between times III and IV.
Complete question:
You will find the figure with cyanobacteria, decomposers, and oxygen concentration curves in the attached files.
Answer:
- between times I - II: cyanobacteria produce oxygen through the procees of photosynthesis.
- between times II - III and III - IV: decomposers consume oxygen through the process of respiration.
Explanation:
Cyanobacteria, also known as green-blue algae, inhabits the euphotic stratum, producing oxygen through the process of photosynthesis. Probably they produce among 20 - 30% of the global photosynthetic activity. When they die, they sink to deeper water strata.
At the time I, the cyanobacteria population experiences a fast growth, which can be seen through the positive sharp increase of the curve slope. The curve reaches a maximum point just before time II, where it begins to decrease. Cyanobacteria reproduce, and the population grows in size. The more cells there are, the more photosynthetic activity, and the higher amount of oxygen is produced. Following cyanobacteria growth, there is an increase in oxygen concentration, which is reflected by the sharp increase in the curve slope. Both curves are very similar, but they are separated on time, meaning that first cyanobacteria need to reproduce and photosynthesize to posteriorly observe a proportional increase in oxygen concentrations.
Just before time II, the cyanobacteria population stops growing, and at time II begins a sharp decrease in size, reflected in the curve slope. Living cells still produce oxygen, but as there are fewer cells, oxygen concentration also decreases. Cyanobacteria are decomposed by aerobic bacteria and fungi. These last organisms consume oxygen through the process of respiration. As cyanobacteria die and are decomposed, aerobic cells can reproduce at higher rates, increasing their population size. This also can be seen reflected in the decomposers curve, which is stable until time II where it shows a sharp positive increase in its slope. As decomposers' population increases, they consume more oxygen, which concentration decreases inversely proportional to the decomposers' increase. This can be seen in the curves: from time II to time III, the aerobic organisms curve increases and the oxygen curve decreases, so as the cyanobacteria curve.
Just before time III cyanobacteria population stabilizes and during time IV keeps equal. Oxygen concentration keeps following, from time II to IV. When cyanobacteria stabilize, before time III, decomposers population starts to decrease, but they still consume oxygen.
PLEASE HELP ASAP (: question in photo
Answer:
B. early loss
Explanation:
Because the curve of C happens early in the process, it is best to assume that you have early loss survivorship as a result. Curve A would be a late loss survivorship while Curve B would be a constant loss survivorship.
Which of the following does NOT describe prokaryote chromosome organization?
diploid
found in the nucleoid
circular
tightly coiled
Answer:
diploid
Explanation:
diploid sorry if I'm wrong
Consider the image shown hete. What form of cell transport is shown?
A) Osmosis
B) Diffusion
C) Facilitated Diffusion
D) Endocytosis
Answer:
fascillated diffusion
Explanation:
it so utilised by molecules that are unable to freely cross the phospholipid bilayer.
Consider a cross between two Brassic rap parent plants known to be heterozygos tall. Using a punnett square to solve this cross and break down the expected genotypc and phenotyic results.
Draw a punet square here
Genotypic results:
Homzygous Dominant:
Heterzygous:
Homzygous Recessive:
Phenotypc results:
Tall:
Answer:
Genotypic results: 1 (TT):2 (Tt) :1 (tt)
Homzygous Dominant: 1/4
Heterozygous: 1/2
Homzygous Recessive: 1/4
Phenotypc results: 3 tall: 1 short
Tall: 3/4
Short: 1/4
Explanation:
This question involves a gene coding for height. The alelle for tallness (T) is dominant over the allele for shortness (t). According to this question, a cross between two Brassic rap parent plants known to be heterozygos tall (Tt) is performed.
Each parent will produce gametes T and t. Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
TT (1), Tt (2), and tt (1)
Based on this result, the following results are obtained:
Genotypic results: 1 (TT):2 (Tt) :1 (tt)
Homzygous Dominant: 1/4
Heterozygous: 1/2
Homzygous Recessive: 1/4
Phenotypc results: 3 tall: 1 short
Tall: 3/4
Short: 1/4
8. When a plant is left in a closed clear container, moisture can be observed inside
the container. The water comes from -
A photosynthesis
B cellular respiration
C a decrease in phloem function
D a decrease in xylem function
ANSWER:
JUSTIFICATION:
ish (U.S.)
Text Predictions: On
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a
The water comes from cellular respiration when a plant is left in a closed clear container and this process is called transpiration. Hence, option B is correct.
What is transpiration?The process of transpiration occurs when plant roots take in water and then release it as vapor through the leaves. As one of the primary sources of water entering the atmosphere, transpiration plays a significant role in the water cycle.
In addition, plant transpiration contributes significantly to the leaf's energy balance by providing evaporative cooling. Additionally, the movement of water and nutrients from the roots to the shoots is accelerated by transpiration.
When a plant is left in a closed clear container, moisture can be observed inside the container. This water comes from cellular respiration through the process of transpiration. Hence, option B is correct.
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What is found in the nucleus of animal cells?
Answer:
What is found in the nucleus of animal cells
Explanation:
DNA
Answer:
Hope that was helpful
Explanation:
Animal cells contain three main regions: plasma membrane, nucleus, and cytoplasm. The nucleus is a cell's central organelle, which contains the cell's DNA.
The structure of a nucleus encompasses the nuclear membrane, nucleoplasm, chromosomes, and nucleolus. The nuclear membrane is a double-layered structure that encloses the contents of the nucleus.
Why are crops in the artic grow larger than normal during the summer months?
Answer:
Explanation:
Crops in the arctic grow larger than normal during the summer months because the snow and ice from winter starts to melt, giving the plants a lot more water.
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Answer:
(1 point) Crops in the arctic grow larger than normal during the summer months because the snow and ice from winter starts to melt, giving the plants a lot more water.
Grandma Hippity Hop is worried about the ice that will be forming on her sidewalk this winter. She doesn't have money to waste on sidewalk salt that is ineffective, so Brenda decides to do some testing for her.
Indepedent Variable - ______________________________________________________
Dependent Variable - _______________________________________________________
Controlled Variables: (There are at least 5. Please list 2) __________________________________________________________________________________
__________________________________________________________________________________
Answer:
Independent variable- SIDEWALK SALT
Dependent variable- ICE FORMATION
Controlled variables- same size of ice, same sidewalk
Explanation:
Based on the information given in this question, Brenda is helping Grandma Hippity Hop test the effect of sidewalk salt on the formation of ice on her sidewalk.
In an experiment, the independent variable is the variable that is changed or manipulated by the experimenter. In this case, the SIDEWALK SALT is the independent variable because it is the one being changed i.e used or not used.
Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable that is measured or recorded in an experiment. In this case, the ICE is the dependent variable because its formation is dependent on the SALT (independent variable).
Controlled variable or constants are variables of an experiment that are kept unchanged throughout the experiment. In this case, the SAME SIDEWALK AND SIZE OF ICE are used, hence, they are the controlled variables.
what is thymine and its purpose
Answer:
Thymine, which is often abbreviated to T or Thy, can also be referred to as 5-methyluracil. It is one of the pyrimidine bases found in the nucleic acid of DNA, along with adenine, guanine and cytosine (A, G and C). These bases are the building blocks of DNA and life form on earth.
Explanation:
can someone help me on my most recent question, its math and its multiple choice
Answer:
Explanation:
It is one of the pyrimidine bases found in the nucleic acid of DNA, along with adenine, guanine and cytosine (A, G and C). These bases are the building blocks of DNA and life form on earth.
What are the types of pollination? How is one advantages over the other method?
Explanation:
In self-pollinating plants, there is less dependence on the external factors to cause pollination. These plants depend on wind or other smaller insects that visit the flower regularly. In self- pollinating flowers, the anthers, and stigma are of similar lengths to facilitate the transfer of pollen.
Answer:
The two types of Pollination are Self Pollination and Cross Pollination.
Explanation.
During the process of fertilizations in green plants ,mature gametes (pollen grains) are transferred from the male reproductive parts(flowers) of plants(anther) to the receptive female reproductive parts of the same plants or another plants of the same species(stigma) for fertilizations to take place .This process is called Pollination.
If the transfer takes place between the anther and stigma of the same plants, this is Self pollination. However if between the anther and stigma of another plants, but of the same species it is called cross pollination.
Therefore, the two types;
• Self-Pollination
• Cross pollination.
Self-Pollination.
This is one of the process of reproduction in hermaphrodite or monoecious Plants. Plants with male and female reproductive parts in their flowers.
• The reproductive parts(anther and filament) are naturally created close to one another in most cases.
• They are also of propionate length to facilitate the the reacceptance of pollen grains from anther on the stigma.
• The stamen and carpel usually mature at the same time to aid pollination.
.Its advantages are-
• No diversity of genes since there is no cross over at meiosis, therefore the genome is pure for progeny of similar traits to the parents.
•
• Its allow the manifestation of the recessive allele, and therefore stability of the same type of parent plant from generation to generation.
• Does not depend on external factors or agents. therefore, pollen grains are not wasted. Pollination is usually 100% success rate.
• Disadvantages.
• Lack of variation leads to plants with loss of vigor. This affect the quality of offspring produced.
• The progenies has low resistance to diseases leading to poor yield. This may lead to loss of the plant lineage with time because plants with high vigor may evolve with time, based on Darwin Theory.
• Cross pollination.
This occurs in Dioecious plants. That is plants with district male and female reproductive flowering parts.
It depends on the external factors or agents of wind, water, animals (including human) insects to take place. These factors transfer(i.e Cross) the mature pollen from the anther of one flower to the stigma of the another flower of another plants but of the same species. Based on the agent of pollination, cross pollination can be placed into different groups.
Advantages.
Since there is blend of traits among different plants of the same species, there is diversity of genes through variation. This ensures;
Progeny with characteristics different from each of the parents Hybrid). The beneficial effects of these are;
High vigor.
High resistant to diseases.
High yield.
Evolution of new species over time.
However, wastage of pollen in transition and loss of good traits through the agents are few disadvantages. Although plants make up for this with large amount of pollen produced.
Because cross pollination allow genetic diversity through blending of genes from different plants of the same species, it ensure survival of the plants with better vigor more than self pollination because the progeny becomes weak and later edged out by the more dominant progeny from the cross palliation.
This is the survival of the fittest by natural selection.
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Which example is an abiotic factor of an aquarium environment?
A. bacteria
B. sunfish
C. coral
D. water
Answer:
first of all coral is no right second of all the answer is water
Explanation:
Answer: the right answer for this question is
D) Water
Explanation: I took the quiz hope this helps!
1. A student made a list of examples of each of the six kingdoms. The list contains two examples from the same kingdom. Which one of these should be removed from the list?
A. Worm
B. Amoeba
C. Mushroom
D. Sunflower
Plz help!! Giving 15 points!!
Answer:
b
Explanation:
its not one
Select the correct location on the image.
Identify the image that depicts an abiotic factor.
The images are:
Trees
A tiger
Some bird
Sun rays
Beetle
Answer:
sun rays
Explanation:
biotic factors are ones that are alive which are the tree, tiger, birds, and beetle. abiotic is the ones that are not alive which would be sun rays, air or water. hope this helps
In the image, the sun's rays are the abiotic factor. So the correct option is D.
What are abiotic factors?
All the non-living components or factors of an ecosystem are referred to as the Abiotic factors of that ecosystem. They are the chemical factors or the physical factors.
These are present either in the lithosphere, atmosphere, or hydrosphere. Examples of abiotic factors include sunlight, minerals, air, soil precipitation, and everything else that supports life but is not living.
These factors support life in the ecosystem. They help in the survival of the species and their reproduction in the ecosystem.
For example, without the required amount of sunlight, autotrophic photosynthetic organisms would not be able to perform photosynthesis. Thus it will result in their death. Since they are primary producers, the organisms dependent on them, called primary consumers will also die.
This effect will continue to cascade up the food chain and will eventually affect every organism.
Therefore the correct option is D.
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Which has more momentum: a bowling ball with a velocity of 7.0 m/s or a basketball with a velocity of 9.0 m/s? The bowling ball has a mass of 5.5 kg (roughly a 12-pound bowling ball), and the basketball has a mass of 6.2 x 10-1 kg.
Answer:
Basketball with a velocity of 9.0 m/s
Explanation: The one with more velocity has the more momentum
which one off this has an effect on gravity Moon
Sun
Earth
Gravity
Mass
Distance
Which characteristic mentioned in the key do the spider and insect share?
A. Has wings
B. Has antennae
C. Has no backbone
D. Has no legs
Answer:
Has no backbone
Explanation:
Ap3x
During its life cycle, fern plant goes through different phases in which it changes from reproducing asexually to reproducing sexually. Which statement best describes the difference?
A.The sexual phase can produce variations within the species
B.The sexual phase produces offspring that look identical
C.The asexual phase allows the plant to better tolerate harsh conditions
D.The asexual phase provides better variation of plants
Answer:
A.) The sexual phase can produce variations within the species
Explanation:
Sexual reproduction allows for the mixing of genes which creates variation. Since asexual reproduction just involves one cell, the daughter cells will be identical to the parent. Thus, no variation is created.
The fern's life cycle has been constituted of asexual and sexual phases that include sporophyte, and gametophyte. The sexual phase of the fern allows variation in the species. Thus, option A is correct.
What is an alternation of generations?Alternation of generations is the type of life cycle that includes both the asexual and sexual phases. They differ in morphology and genetics which results in the formation of varied offspring. It consists of two distinct phases that differ chromosomally.
The first phase includes sporophyte that produces spores that are in the asexual mode, whereas the second phase includes gametophytes that produce gametes that are in the sexual mode of reproduction. The gametophytes are the haploid plants and sporophytes are the diploid plants.
The sexual phase or the gametophytes allows the species to have variations as they involve the recombination and crossing over of the chromosomes that lack in the asexual mode of reproduction.
Therefore, option A. sexual reproduction allows variations.
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Check all statements below that are true about FORCE.*
A.Forces only work when objects are touching already.
B.Forces can act on objects and cause motion even when the objects are at a distance
(not touching)
C.Magnetism is the only type of force.
D.Magnetism and gravity are both forces that act at a distance,
This is a required question
• Al medir 4.7 m como la longitud de una habitación que mide realmente 4.67 m.
Answer:
Completando.
Explicación:
Al medir 4,7 m como la longitud de una habitación que en realidad es 4,67 m debido al redondeo del valor de 4,67. El redondeo se refiere a un número que se simplifica al mantener su valor intacto pero más cerca del siguiente número. Se hace tanto para números enteros como para decimales. Si el segundo dígito a la derecha del decimal es mayor que 5, entonces se le da un número al primer dígito presente a la derecha del decimal, por lo que en este ejemplo, el segundo dígito a la derecha del decimal es 7, que es mayor que 5, por lo que se agrega uno. a 6, que está presente a la derecha del decimal, lo que lo convierte en 7.
The diagram below shows how a chemical message produced by one cell is received by other cells
If these chemical messages are destroyed, the target cells will
Answer:
not respond with appropriate actions
Explanation:
produce their own chemical messages
not respond with appropriate actions
develop different receptors
no longer be produced in the organism
b is correct
answer from a quiz
I need help with this one! Please!
Answer:
B) The nutrients are picked up and transported around the body by blood from the circulatory system.
Explanation:
Food goes through your digestive system. Nutrients are taken out of your food in your intestines. Your intestinal walls absorb the nutrients and put them into your blood, which is put into your bloodstream in the natural cycle of blood going through your veins and arteries. Along the way, nutrients are brought to cells everywhere in your body before going through your heart and then kidneys.
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MASTERY CONNECT MITOSIS
The answer is C i'm pretty sure
Please use the picture below to help you answer questions
What Type of cell is this??
What Type of cell is this??
Answer:
That's a plant cell, animal cells have no cell walls
Explain the difference of Particle theory and wave theory in your own words.
Which of the following statements about science is accurate
name one fossil anima
Answer:
Mold Fossils
Explanation:
Enzymes are involved in biochemical reactions within the cells of all living organisms. Which statement best describes how enzymes affect biochemical reactions?
Answer:
Enzymes are catalysts that lower the activation energy required for reaction to take place. Enzymes speed up reactions.
Explanation:
