What are the two main steps of DNA replication
A ____ lens has a center that is thicker than its edge
In which zone can rooted plants be expected to be found attached to the seafloor? What is the name of this zone, and why are plants found there?
Answer:
Just adding a bit on what the other person said.
Plants that are attached to the ocean surface live in the benthic zone. These plants are also found in the epipelagic zone which maxes at 200m. Plants and life need warmth, oxygen, and sunlight. At these depths, all of these are available to ocean life.
100 points help!!!! How is electricity produced in a dam? (Use these words: water, kinetic energy, reservoir, penstock, turbine, generator, transformer, electrical lines)
Hydroelectricity comes from using the kinetic energy stored in the water. When the high pressure through the blades are released, its kinetic energy is transferred onto turbine blades to generate electricity.
water, kinetic energy, reservoir, penstock, turbine, generator, transformer, electrical lines) Hope This Helps
Explain How an immune system response starts after a macrophage attacks a pathogen || I need it fast please help
in what order do the birds blue jay, robin, cardinal, canary and pelican go in a cladogram
The blue jay, robin, cardinal, and canary, being songbirds, are closely related and would be clustered together in a cladogram. The pelican, however, belongs to a different clade, Aequorlitornithes, and would be positioned separately from the others.
Ordering Birds in a Cladogram
To understand the order in which the birds blue jay, robin, cardinal, canary, and pelican should be placed in a cladogram, we need to consider their evolutionary relationships. The blue jay, robin, and cardinal are part of the Passeriformes order, which is part of the Inopinaves clade—a larger group that also includes hawks, owls, woodpeckers, and songbirds. The canary is also a songbird and therefore falls within the same clade. Pelicans are part of the Pelicaniformes order and belong to a different clade called Aequorlitornithes, which includes diving birds and wading birds.
In a cladogram, the birds that share the most recent common ancestor are grouped more closely. Since blue jays, robins, cardinals, and canaries are all considered songbirds, they are closely related and should be grouped together in the cladogram. The pelican, on the other hand, would branch off earlier as it is part of a different clade.
Without specific genetic information, placing these birds in an exact order is challenging, but in general, canaries, cardinals, robins, and blue jays would appear closer together while the pelican would be positioned apart from them in the cladogram.
What Is The Function of The Digestive System?
a. Transport Nutrients.
b. Break Down Food.
c. Remove Waste.
d. Respiration.
Please Help Me O-O
Answer:
B. Break down food, I took the test, if you are in K12 <3
why did coal never form in australia
In the period when the lush ancient forests exited on Earth, the ones that provided the material for the formation of the coal that we use nowadays, Australia did not provide the right conditions for the existence of these forests.
The problem was that Australia was located very close to the South Pole in that period. Because of its location, Australia was colder and drier than most of the landmass on the Earth. By having less precipitation, and colder climate, Australia was not suitable for the tropical rainforests of that period, thus it did not had the material from which the coal formed latter on in the geological time scale.
Tommy is planning his science fair project. He wants to measure the rate of photosynthesis in plants that live in fresh water. Is this an example of a scientific investigation or an experiment? An experiment because it shows a cause and effect relationship An experiment because it does not ask a testable question An investigation because it can be easily done in natural settings An investigation because there is a control group
The given is an example of an experiment because it does not ask for a testable question. Thus, the correct option will be B.
What is an experiment?An experiment can be defined as a procedure which is being carried out to support or to refute a hypothesis, or for determining the efficacy or likelihood of something which is previously untried. Experiments have been found to provide insight into the cause-and-effect type of relationship by demonstrating what actually the outcome occurs when a particular factor is manipulated in an experimental study.
Tommy is planning a science fair project. He wants to measure the rate of photosynthesis in the plants which live in fresh water. This is an example of an experiment because it does not ask for a testable question.
Therefore, the correct option will be B.
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Your question is incomplete, most probably the complete question is:
Tommy is planning his science fair project. He wants to measure the rate of photosynthesis in plants that live in fresh water. Is this an example of a scientific investigation or an experiment?
a. An experiment because it shows a cause and effect relationship
b. An experiment because it does not ask a testable question
c. An investigation because it can be easily done in natural settings
d. An investigation because there is a control group
if a chromosome unfold itself how is transportation enhanced
1.The dna region is easily accessible
2.the dna region is not accessible
3.the rna region is not accessible
4.the rna has already been made
HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A chromosome unfolding enhances transportation by making DNA segments accessible for transcription. Hence, the correct option is option 1.
When a chromosome unfolds itself, the process enhances transportation by allowing specific segments of DNA to become accessible for transcription. The nucleosomes, which are complex structures of DNA and protein, can slide down the DNA to open up chromosomal regions. This opening of the chromatin structure is vital for the transcriptional machinery, such as RNA polymerase, to initiate the transcription of DNA into RNA. Hence, accessibility is significantly increased as the unfolded DNA provides an opportunity for transcription factors and RNA polymerase to bind to the exposed DNA sequences and carry out the transcription process.
Accessible, transcriptionally active regions of DNA are known as euchromatin, while DNA packaged so that it is inaccessible to regulatory protein binding is known as heterochromatin. Essentially, chromatin dynamics—such as the opening and closing of nucleosomes—allow DNA to be transcribed, move histones to open or close a chromosomal region, and are temporary changes that contribute to gene regulation.
Which of the following factors interact to create currents that are less than 50 m deep?
A. temperature, gravity, and the Coriolis effect
B. wind, friction, and the Coriolis effect
C. wind, temperature, and salinity
D. density, temperature, and salinity
Answer B. Wind,Friction and the Coriolis effect
Explanation:
Answer: The correct answer is : B. wind, friction, and the Coriolis effect
Explanation: The patterns of surface currents are defined by the direction of the wind, the Coriolis forces from the rotation of the earth and the position of the landforms that interact with the currents.
1. yellow (Y) is a dominant trait and green (y) is a recessive trait.
which combinations would result in a plant with yellow seeds ?
choose all that are correct
Yy
Yy
yy
( i think it’s YY and Yy)
5.(pictured) which statements best describe the relationship between genes and alleles?
Which is considered a chemical mutagen? tanning beds tobacco X-rays precious metals Mark this and return Save and Exit
Which step only occurs in the formation of coal?
A. Movement of the earth causes the rock to fold and form a trap
B. Decaying swamps are covered with seawater
C. Great temperatures build up over layers of organic material
D. Organic remains are trapped under layers of sediment and water
In coal formation, Decaying swamps are covered with seawater
what is Coal?Coal is a solid fossil fuel material that is black in color and readily combustible it contains a large amount of carbon based material.
Coal formation begins in swampy areas where there is enough groundwater and is near or slightly above the topsoil.The plants or flora present in the areas decomposes to produces organic matter that is needed. For the organic matter to be produced, the plants must be buried in water for it to decompose.Therefore, decaying of swaps covered with sea water is a major step in Coal formation as they aid the decomposition and formation of organic matter.
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Which best describes what happens to a developing fetus during the third trimester?
Answer:
fetus continue to grow in size and weight
genus only plzzzzzzzzzzzzzzzzzzzzzzzzzzz
The prefix centi- means A) 1/100. B) 1/1000. C) 100. D) 1000.
Which two levels of classification are represented in an organism's scientific name?
Class and kingdom
Domain and phylum
Genus and species
Family and order
Answer:
Genus and species.
Explanation:
The system of the biological classification is important to classify the organisms into different group. Linnaeus is known as the father of biological classification.
The naming of the species that comprises two levels are known as known as biological nomenclature. The first name of the organism represents the genus and the second name represent the species to which the organisms belong.
Thus, the answer is option (3).
Are primitive traits typical of broader or smaller clades?
Final answer:
Primitive traits are typical of broader clades as they are inherited from a distant ancestor and are shared among a large group of organisms, whereas derived traits are characteristic of smaller clades and indicate more recent evolutionary changes.
Explanation:
Primitive traits, also known as plesiomorphic traits, are typical of broader clades because these traits were present in distant ancestors. These traits persist over large groups of organisms that descend from a common ancestor. For instance, all mammals possess body hair because they share a common ancestor that exhibited this feature, making it a primitive trait within the clade of mammals. In contrast, derived traits, or apomorphic traits, are indicative of smaller clades as they represent changes that occurred after the clade diverged from other lineages. For example, the trait of walking on two legs is considered a derived trait in humans as it developed after our lineage split from other primates.
It is important to recognize that the classification of a trait as primitive or derived is relative and can vary depending on the taxa being compared. Additionally, when a lineage splits into two, it is common for one to retain more of the ancestral traits, while the other develops more derived traits. Understanding these traits helps us reconstruct evolutionary relationships and determine how closely related different species are within the clades they belong to.
Computers talk to each other through a worldwide system called the
True or False: Always cut towards the body when using knives or paring utensils, like peeling a carrot or apple. Jarod knows this is a safety precaution.
Should genetically modified organisms be available for human consumption? Explain why or why not.
Yes, genetically modified organisms should and are available for human consumption, and they are fully tested before introducing to humans.
What are genetically modified organisms?A genetically modified organism (GMO) is a living organism whose DNA has been altered using genetic engineering techniques. Humans have utilized breeding strategies to modify creatures for thousands of years. Over millennia, corn, livestock, and even dogs have been selectively selected to have particular desired features.
These organisms are safe to eat because they are fully tested before introducing to people. These organisms contain more nutrients than normal animals and can prepare in vitro conditions.
Therefore, yes, genetically modified organisms should be available for human consumption.
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what is a diatom? what makes them different from other algae?
he birds shown above have beaks with three different shapes and sizes.these genetic variations in the black each appeared initially due to? -environmental factors -mutations -natural disaster -conscious choice by the birds
The birds shown above have beaks with three different shapes and sizes. The genetic variations on the beak each appeared initially due to
Answer 1- mutations
Look at the three beaks which flock's birds have beaks that seem most likey to Pierce a piece of fruit?
Answer 2-Flock X
Suppose that s plant disease kills all fruit. The change could become a
Answer 3- selective pressure
Check all possible effects of this selective pressure
Answer 4- 1, 2, 3, and 4 are true.
Flock x may try to eat other foods -True
Flock x could migrate in search of fruit -True
Flock Y and Z could benefit and increase- True
Flock x could try to mutate- False
Planet C has a tilt of zero degrees. What seasonal changes would be expected on this planet?
Extreme temperature changes between seasons
No change in temperatures between seasons
Seasonal changes along the equator only
Seasonal changes at the poles only
Answer:
No change in temperatures between seasons or B
Explanation:
the fluid filled space within the nuclear envelope
The correct answer is nucleoplasm.
The nucleus of the majority of the cells comprises a substance, which suspends compositions inside the nuclear membrane. Similarly, to the cytoplasm, the nucleus comprises of nucleoplasm, also called karyoplasm.
The nucleoplasm is a kind of protoplasm, which comprises the majority of water, dissolved ions, and a mixture of different molecules. It is entirely enveloped inside the nuclear envelope or nuclear membrane. It is a sticky liquid, highly gelatinous, which supports the nucleoli and chromosomes.
The main activity of the nucleoplasm is to function as a suspension material for the organelles within the nucleus. It also assists in sustaining the composition and shape of the nucleus and plays an essential function in the transportation of substances, which are important to cell function and metabolism.
suppose skin color in a frog is determined in two alleles: B (blue) and Y(yellow). B and Y show incomplete dominance, where BY heterozygotes are green. Suppose frog 1 is blue and frog 2 is green. frog 1 and frog 2 produce 200 offspring together. in actual numbers, how many of these offspring will be blue, green, and yellow?
what facilitates passive transport across a cell membrane
The answer is concentration gradient.
A galaxy cluster is A. another name for a star cluster. B. a group of stars that cluster just outside a galaxy. C. another name for the Milky Way. D. a group of galaxies bound together by gravity.
Answer:
study island
Explanation:
i need to know the answers to 13 and 14