Answer:
1- study the fossils of ancient land vertebrates
Explanation:
Some scientists concluded after performing a number of experiments that the legs of modern land vertebrates evolved from the fins of ancient fish. With the passage of time evolution occurs within the body of organisms. These changes occurs due to the surrounding environmental condition of that organism. When the organisms live in water, fins were present but when they go to the land so these fins change into legs. This type of evidence is provided by the scientist after studying the remains of ancient land vertebrates.
Answer:
A
Explanation:
after several cycles of cell division, a fertilized cell develops into a hollow ball of cells called a
The what method can help resolve problems logically
Which of the following about Dalton's theory of matter is true? A Atoms of the same element have the same mass. B Compounds formed from two elements will not always have the same proportions. C Atoms cannot be divided into smaller parts.
9.
Scientists break down evolution into which two categories?
- macroevolution and genetic drift
- microevolution and mass. extinction
-natural selection and macroevolution
-microevolution and macroevolution
Natural selection and macroevolution
Hope this helps :)
what is the difference between a medical biochemist and a biochemist
Answer:
Explanations
Biochemistry is literally biological chemistry:the study of the chemical process within and relating to organisms. Biomedicine is medical biology:it really comes down to viewing biological sciences from a clinical perspective ... I hope this help u
Question 1 of 10
2 Points
Earlobes can be either attached or detached. The allele for attached earlobes
is recessive (e), and the allele for detached earlobes is dominant (E). What
must be true if a boy is born with attached earlobes?
A. He has a heterozygous genotype.
O B. He has no E alleles.
C. He has no recessive alleles.
O D. He has one of each allele,
SUBMIT
Answer:
B. He has no E alleles.
Explanation:
In order for the boy to have an attached earlobes phenotype, he must have no E alleles, because the E is dominant. So his genotype must be ee. If he has even just a single E allele (like Ee) he will have detached earlobes, because the dominant trait will mask the expression of the recessive trait.
Why not A or D: Heterozygous Ee (one of each allele) would result in detached earlobes.
Why not C: If he has no recessive alleles, EE, he would have detached earlobes.
If a boy is born with connected earlobes, he has no E alleles because the allele for detached earlobes is dominant (E), whereas the allele for attached earlobes is recessive (e). So, the correct option is B.
What is Dominant allele?A dominant allele is one that will overpower a recessive allele's expression. Hence, only the trait linked to the dominant allele is manifested when a dominant allele and recessive allele coexist in the genotype of offspring. Consequently, for a recessive allele phenotype to manifest, both of the recessive allele must be present in the progeny.
A recessive allele causes connected earlobes (e) while the dominant earlobe detachment allele (E)
A child with the EE genotype would have disconnected earlobes.
As features of dominant alleles are manifested in heterozygous genotypes, offspring with the Ee genotype would also have disconnected earlobes. Only the child with the ee genotype would have connected earlobes. A homozygous recessive genotype is genotype ee.
Thus, the correct option is B.
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Will give BRAINLIEST How did the universe begin?
Answer:
According to big bang model, the universe was born during a period of inflation that began about 13.8 billions years ago. Like a rapidly expanding balloon, it swelled from a size smaller than an electron to nearly its current size.
Initially the universe was permeated only by energy, some of the energy congealed into particles, which assembled into light atoms like hydrogen and helium.
At first the atoms turned into galaxies, then stars and then other elements were forged.
Explanation:
These are what happened when the universe was forming.
Hope it helps.
What is the purpose of meiosis?
Answer:
Genetic variation by crossing over
Produce 4 daughter cells from single parent cell.
Explanation:
What happened to the sexual fish after many died from drought?
match the function to the correct part of the neuron.
Kindly refer the attachment for labelling.
Answer:
A- Receives signal from other neurons
B- Contain the nucleus and cell organelles
C- Protects and insulates the axon
D- Conveys electric signal across a long distance
E- Passes electrical signals to other neurons
Explanation:
A. The "A" part in the image refers to "dendrites" which function to receive signal from other neurons.
B. The "B" part refers to "soma" which contain the nucleus and other cell organelles.
C. The "C" part refers to "Myelin sheath" that protects and insulates the axon.
D. The "D" part refers to "Axon" which is responsible for conveying electric signal across a long distance.
E. The "E" part refers to "Axon terminal" which is responsible for passing or transferring the elecrtic signals to other neurons and dendrites of other neurons receive the signals and the process goes on.
Hence, the match of fucntion with the correct part of neuron is as following:
A- Receives signal from other neurons
B- Contain the nucleus and cell organelles
C- Protects and insulates the axon
D- Conveys electric signal across a long distance
E- Passes electrical signals to other neurons
Answer:
see image below
Explanation:
Replication happens before a cell divides (Mitosis). So, like Mitosis, how many DNA are there after Replication is over? please help me
Answer:
ive done science already and i think its 2 if im wrong im sorry
If water can stick to solids can it stick to liquids? Can it stick to mercury?
what are two fuctional parts of a charged trna
Answer:
An amino acid and an anticodon
Answer:
An amino acid and an anticodon
Explanation:
The anti-codon region in tRNA recognizes the bases in mRNA and then decides whether the amino acid that it has is appropriate for that triplet or codon.
help
Distinguish between causal and correlational relationships, with specific examples of how the impacts of group behaviors illustrate these relationships
help me
Answer: The casual relation is a cause and effect relation whereas the correlation is when the two variables are related based on two or more parameters.
Explanation:
A casual relationship can occur in between the two events, the first occurs before the other. The first one is cause and the other one is effect. A correlation can be defined as the relation between the two variables. It does not imply causation. It can be defined as the causal relation between the two variable that are correlated.
Answer:
The difference between causal and correlational relationships is as following:
A correlational relationship is defined as a measure of relationship between two variables and the variables can be negatively correlated, positively corelated or not correlated at all.
Relation between two events said to be causal relation, if the occurrence of the first causes the other. It means the effect of second event should be caused by the the first event.
So, causal relationship between two variables must be correlated.
For example: there is a positive correlation between the organisational behaviour and work done. if any one employee will deny to work from the group of 4 employees it will affect other employees behaviour and reduces their working ability, which will reduce tehir work done. It means that organisational behaviour between employees is the cause of less work done. so, the second event (work done) is the cause of first event (organisational behaviour) and they both are positively correlated as well.
The _______ nervous system is a part of the automatic system that conserves energy by returning the body to a normal activity level through a lowered heart rate blood pressure.
Answer:
The answer is parasympathetic.
Explanation:
The Parasympathetic Nervous System is one of the two divisions of the autonomic system, which is the system that regulates all our bodily functions, like heart rate and peristalsis.
Hope this helps :)
Which of the following is a population?
A. All of the different kinds of fish that live in a lake
B. All of the living and nonliving things that interact in and around a
lake
C. All of the trout that live in a lake
D. All of the fish, bacteria, and mammals that live in a lake
SUBMIT
Answer:
Explanation:
First, let’s define population. A population is all of the organisms of the same species that live in a certain area.
Now, let’s analyze the answer choices.
A: All of the different kinds of fish that live in a lake.
This is not a population, because a population is one species, and this is all the different species of fish.
B. All of the living and nonliving things that interact in and around a lake.
This is also not a population. A population is just one species, while this includes all the biotic and abiotic factors.
C. All of the trout that live in a lake.
This is a population. Trout are one species, and it is all the trout in one specific area.
D. . All of the fish, bacteria, and mammals that live in a lake
This is not a population. Fish, bacteria and mammals are too many species for a population.
Therefore, the correct answer is C. all of the trout that live in a lake.
All of the trout that live in a lake is a population of trout. Therefore, option C is correct.
A population refers to a group of individuals of the same species that inhabit a specific geographical area and have the potential to interbreed. A population consists of all the organisms of a particular species that live and interact within a defined area.
Population biology is a branch of biology that focuses on studying populations and their characteristics, dynamics, and interactions. It involves examining factors such as population size, density, distribution, age structure, genetic variation, growth rate and changes over time.
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Which statement accurately describes Gymnosperms select all that apply
Answer:
Some require heat for seed dispersal.
Fertilized ovules grow into seeds.
Male and female cones may grow on the same plant.
Explanation:
I did this quiz. Have a good day :)
all cells come from preexisting bones
true or false?
Answer:
Within contemporary cell science, widely recognised sections include: All documented living beings compose of one or more cells. Both living cells come from separation from pre-existing cells. Cell is the central element of all living species with form and work.
Explanation:
Answer is above
Hope this helps.
In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism. If an albino man and a woman who is heterozygous for this trait marry and have a child, how likely is their baby to be an albino?
what will most likely happen to the genetic diversity in the population over time
Will mark brainliest pls help asap very easy photosynthesis!! А) Water vapour is lost from leaves. Arrow P shows water vapour leaving the cells. What is the name of this process? B) Arrow Q shows the water vapour escaping from the leaf. What is the name of this process? C) How are cells of type G adapted to their function?
Answer
:Photosynthesis can be explained in four simple steps, as follows.
Step 1:
The plant gathers sunlight from the chlorophyll in the cells to convert into energy.
Step 2:
The light energy then reactions and forms hydrogen and oxygen.
Step 3:
The hydrogen joins with carbon dioxide and create sugars.
Step 4:
The sugar is then separated, some to be used as the structure in the cell wall, and some stored in the ATP for later use.
Explanation:
Trees with light brown bark dominate an ecosystem. The ecosystem has populations of insects that thrive on the tree bark. Over time, some insect species developed certain physical characteristics that helped them thrive on the tree bark. These physical characteristics also helped the insects defend themselves from predators. Which insect species is probably the species with the new physical characteristics?
I'm assuming this is referring to the Peppered Moth, a species of moth that adapted to the change of color on tree bark. The tree bark changed color as a result of local pollution. The moths (over the course of generations) changed color as well that better suited camouflage upon the new color of the tree bark.
Answer:
WELL, good thing I had this question and out of the four bugs I think it's the black bug with the pincers (stag beetle I think)
Explanation:
The Central Dogma of Biology states that:
"I am the Dog Mother of Biology!!!!"
DNA is translated into RNA and RNA is transcribed into proteins
RNA is transcribed into DNA and DNA is translated into proteins
DNA is transcribed into RNA and RNA is translated into proteins.
Answer:
DNA is transcribed into RNA and RNA is translated into proteins.
Explanation:
The central dogma of biology explains how gene is expressed in living organisms. Genes are segments of DNA that encodes or carry information for useful products called PROTEIN. However, these genes needs to be expressed. Gene expression occurs in two stages viz: transcription and translation.
Transcription is the first process of gene expression involving the synthesis of a RNA molecule from the gene-containing DNA molecule i.e. DNA is transcribed into RNA.
Translation is the second process of gene expression that involves the synthesis of an amino acid sequence from the information contained in the RNA transcript. These amino acid sequence forms the PROTEIN. Hence, RNA is translated into protein, which is responsible for certain phenotypes.
Which of the following statements is true?
Evaporation happens equally around the world.
Condensation and infiltration drive the water cycle.
Evaporation happens more frequently over land than over water.
Precipitation is greater than evaporation over land.
Answer:
Precipitation is greater than evaporation over land.
Explanation:
On a global scale, precipitation is greater than evaporation from land while evaporation exceeds precipitation from ocean.
Describe the path of an oxygen atom through four reservoirs of the oxygen cycle. Explain the process involved in the transfer between these reservoirs. Also, note the reservoirs in the path where the oxygen atom bonds to a carbon atom.
Answer:
The four main reservoirs of oxygen cycle are terrestrial biosphere, marine biosphere, lithosphere and atmosphere.
Explanation:
Oxygen is present about 21 % in the atmosphere which comes to the earth surface i. e. terrestrial biosphere where animals and microbes use this oxygen for the process of respiration while plants are the only organisms which produces oxygen in the process of photosynthesis and this oxygen goes to the atmosphere. This atmospheric oxygen also dissolve in water which is used by the marine animals. Oxygen atom is also present with carbon atom in the form of food molecules such as glucose which is produced inn the process of photosynthesis.
The oxygen cycle is a biogeochemical cycle, in which oxygen is circulated through the lithosphere, atmosphere, rhizosphere, and biosphere. The amount of oxygen present in the Earth's atmosphere is 21%.
The oxygen's primary reservoirs are the biosphere, atmosphere, and lithosphere.
The atmosphere or the air constitutes 21% of the oxygen. The organisms present on the terrestrial surface consume oxygen via respiration.
In the biosphere, autotrophs like plants produce oxygen via photosynthesis. The oxygen is then delivered to the atmosphere, where it is again utilized by terrestrial organisms.
The oxygen when dissolved in the water is used by marine organisms in the form of dissolved oxygen.
In the lithosphere, the oxygen is circulated through chemical weathering, which the formation of iron oxides. Chemical weathering can lead to the release of oxygen in the atmosphere.
Therefore, the oxygen can be circulated through terrestrial organisms, marine animals, the lithosphere, and the atmosphere through different processes like weathering and photosynthesis.
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Which is part of the nonspecific immune response?
O A. Fever
O B. B cells
O C. Lymphocytes
O D. Making antibodies
Answer:
A. Fever
Explanation:
Fever is part of the nonspecific immune response. Therefore option A is correct.
Fever serves as a defense mechanism against infections. When the body raises its temperature, it creates an environment that is less favorable for the growth and reproduction of many pathogens.
Higher temperatures can also enhance the activity of immune cells, such as white blood cells, allowing them to function more efficiently in fighting off the infection.
Fever is triggered by the release of certain chemicals, such as cytokines, by immune cells in response to the presence of pathogens.
These chemicals act on the hypothalamus in the brain, which regulates body temperature, causing it to increase.
Thus, fever is a physiological response of the body to infection or inflammation and is considered a part of the nonspecific immune response.
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Chlorophyll is type of pigment and so is the melanin in your skin what is a pigment
1. Something that aids with photosynthesis
2. Something that help plants grow
3. a substance that contains color
4. Something that helps plants absorbs water
Answer:
3. A substance that contains color.
Explanation:
That's the definition that applies to every form of the word.
Ebola Eradication Strategy
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Please type or paste your plan on how ebola could be contained or stopped
below
Plan: *
Your answer
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7-10 sentence
plz answer my
Benidorm quiz
1. Where is Benidorm holiday resort located?
JORDAN
2. What is the average temperature of Benidorm in summer?
26 C
3. Before 1950s Benidorm was a small ___FISHING______ village.
4. Why did the town council encourage tourism in Benidorm?
TO VISIT BENIDORM
5. How many hotels were found in Benidorm in 1959?
6. Explain package holidays as they were used in Benidorm
7. Give three reasons why Benidorm is an excellent tourist resort
(a)
(b)
©
8. State four tourist attractions at Benidorm
1
2
3
Which of these types of weathering requires the presence of water?
A. Abrasion
B. Heat effects
C. Oxidation
D. Solution
Answer:
D. Solution
Explanation:
Just took the test :)
Solution types of weathering requires the presence of water. Thus option D is correct.
What is the process of weathering?The process in which break down or disintegration of rock surface occurs due to natural occurring process like rains, snow, wind, or sunshine, is called as weathering.
The origin of weathering may be due to continuous biological, chemical, and physical processes on rocks, wood, soils surface or it may due to soil erosion which occurs with the movement of rocks, minerals, snow, wind etc.
Other physical factors include pressure where as one of the chemical factor include carbonation occur between water and carbon resulted in dissolving rocks area.
When rain water combines with carbon dioxide form carbonic acid, which is then reacts with calcium carbonate of rocks and minerals leads to rock weathering.
As the process of carbonation occur in presence of water, Hence Thus option D is correct.
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What is the basic unit of a nucleic acid and what is it made of? WILL MARK BRAINLIEST!
