They are all mechanisms of Evolution and can change allele frequencies in populations
Natural selection, mutation, genetic drift and gene flow are all capable of causing varying changes in allele frequencies in a population. and these changes leads to the violation of Hardy-Weinberg assumptions
Hardy-Weinberg assumption states that; for a population to experience an unchanged allele frequencies, certain conditions must be met by the population such as ; absence of natural, random mating , absence of migration and absence of mutation.
Hence we can conclude that Natural selection , mutation, genetic drift and gene flow are all mechanisms of Evolution and can change allele frequencies in populations
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the right lung has ________ lobes, and the left lung has ________ lobes.
Answer:
3,2
Explanation:
any form of water that falls from clouds is called
Answer: Precipitation
Explanation:
explain why you have so many responses to one stimulus
Answer:
When a stimulus is detected by a sensory receptor, it can elicit a reflex via stimulus transduction.
As organisms release energy during cellular respiration, carbon dioxide is produced from the carbon in energy storage molecules. This process moves carbon from biotic to ________________ a the producers b the decomposers c abiotic matter
Answer:
Abiotic Matter
Explanation:
Which of the following is associated with plates moving away from each other? a. Rifts b. Subduction zones c. Faults d. All of the above.
Answer:
a. Rifts
Explanation:
A fault (c) happens at all plate boundaries, so while this is true, it is not the most correct. A subudction zone (b) is where Earth's tectonic plates dive down into the mantle, so this does not answer our question. A rift, in general, is a crack, split, or break in something. A rift in plate tectonics is when plates are moving apart from each other, caused be tension, so a is our answer.
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I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Answer:
A
Explanation:
the answer is A
Which of the following muscles does NOT flex the wrist?
Answer:
b. Extensor digitorum
Explanation: is correct
what is the function of restriction enzymes in bacteria?
Explanation:
A restriction enzyme is an enzyme isolated from bacteria that cuts DNA molecules at specific sequences. The isolation of these enzymes was critical to the development of recombinant DNA (rDNA) technology and genetic engineering.
mark me as brainlist pleaseFrederick Griffith made a scientific discovery in 1928. which best describes the knowledge about genetics before 1928?
Answer:
Scientists did not know how traits were inherited.
Explanation:
6. Which objects are listed in order of scale from smallest to largest?
Sun, red giant, Earth, galaxy
red giant, Sun, galaxy, Earth
Earth, Sun, red giant, galaxy
galaxy, Earth, Sun, red giant
Cellular organelles have different structures. Mitochondria, for example, possess highly folded inner membranes in addition to their outer membranes. Vacuoles, on the other hand, are only surrounded by a single-layer membrane; they do not have an inner membrane.
Why do cellular organelles have different structures?
A.
Organelles that are less important to the cell have less sophisticated structures.
B.
All of the organelles in a particular organism are identical, but organelles in different organisms are unique.
C.
The structure of a cellular organelle mimics the appearance of the organism.
D.
The structures of cellular organelles are related to their functions.
Answer:
D
Explanation:
Different oganelles do their own function.
The structures of organelles differ because the structures of organelles are related to their functions.
What are the functions of cell organelles?An organelle is a subcellular structure that has one or more specific functions in a cell, such as an organelle in the body. The most important cell organelles are the nuclei, which store genetic information.
Organelles are small structures in the cytoplasm that perform functions necessary to maintain homeostasis in the cell. They are involved in many processes, such as energy production, the formation of proteins and secretions, the destruction of toxins, and responding to external signals.
Examples of membrane-bound organelles include the nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, plastids, lysosomes, and vacuoles.
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Which of these statements could BEST describe the differences between the electron transport chain in cellular respiration and photosynthesis?
A
The electron transport chain in photosynthesis needs a source of energy to start with, and the one in cellular respiration does not.
В
The electron transport chain in cellular respiration releases ATP, and the one in photosynthesis does not.
C
The electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not.
D
The electron transport chain in cellular respiration uses NADH, and the one in photosynthesis does not.
Answer:
c
Explanation:
etc uses oxygen
photosynthesis uses carbon dioxide
The best statements could describe the differences between the electron transport chain in cellular respiration and photosynthesis is the electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not. Thus, option C is correct.
What is Photosynthesis?Photosynthesis is a biochemical reaction that combines chemicals with biological species to produce energy. Atoms of hydrogen bond with carbon to form glucose.
Carbon dioxide and hydrogen are the reactants that are used from the environment by the plants to make energy. Glucose and oxygen are the products. Splitting water into oxygen gas, hydrogen ions and electrons produces the energy for subsequent electron and proton transport and provides the energy to produce the sugars the plant needs.
The hydrogen atoms from the environment are absorbed by the plants and are combined with the carbon dioxide to yield glucose or sugar molecules for energy.
Therefore, The best statements could describe the differences between the electron transport chain in cellular respiration and photosynthesis is the electron transport chain in cellular respiration uses oxygen, and the one in photosynthesis does not. Thus, option C is correct.
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why did the early atmosphere not have much oxygen?
Answer:
The oxygen did not build up in the atmosphere for a long time, since it was absorbed by rocks that could be easily oxidized (rusted). To this day, most of the oxygen produced over time is locked up in the ancient "banded rock" and "red bed" rock formations found in ancient sedimentary rock.
What are the products of light dependent reaction of photosynthesis?
Select one:
1.ATP, RuBP, reduced NAD
2.ATP, Oxygen, reduced NAD
3.GP, RuBP, reduced NAD
4.GP, Oxygen, reduced NAD
Answer:
products of light dependent reaction of photosynthesis are- ATP, Oxygen and NAD
If you help me I'll give you a brain list
I answered the first image in another question for you, though I noticed that the heart to body question was never answered (or at least properly answered).
The blood leaves our heart through the aortic valve, and travels into the aorta which ultimately leads to the body.
Hope this helps!
The outermost layer of rock on the earth is called
the crust, which includes the continental crust
and oceanic crust. Why is the oceanic crust
much thinner than the continental crust,
but much more dense?
A it's composed of silica which
is high in oxygen and silicon
B it's composed of basalt which
is high in iron and magnesium
C it's under the ocean
D it's younger
Answer:
B
Explanation:
The density of continental crust is 2.9 g/cm^3. Oceanic crust, while thinner, is made of mafic materials (Fe, Mg)-- mainly basalt
Explain how a wholemeal sandwich with tuna and tomatoes will be broken down by the digestive system. Start the process from the mouth and end at the anus.
Answer:
All of our energy and nutrition come by way of the gastrointestinal (GI) tract. It is an amazing machine well designed for digesting and absorbing nutrients and for shielding the rest of the body from microorganisms, viruses and other foreign matter. The GI tract spans from the mouth to the anus, with each separate organ having a role in digestion, absorption or excretion.Lastly, if you would like to learn more about yourself and how you can best reach your own nutritional and fitness goals, we encourage you to take a look at the following home health testing guides and resources:
Food Sensitivity Testing Guide
DNA Health Testing Guide
Guide to Life Extension Products
Home Health Testing Guide
Everlywell Home Tests Guide
Home Testing for Heavy Metals
Explanation:
(: tsorry hope to help
will you be able to synthesize both strand of the dna helix in a continuous manner?
Answer:
No.
Explanation:
There are two strands in DNA -i)Leading strand
ii)lagging strand.
Replication of the leading DNA strand is continuous, while replication along the lagging strand is discontinuous. After a short length of the DNA has been unwound, synthesis must proceed in the 5' to 3' direction; that is, in the direction opposite that of the unwinding.
No, we will not be able to synthesize both strand of the dna helix in a continuous manner because the lagging strand synthesize in a discontinuous manner.
What is the process of DNA synthesize?The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the most crucial component of biological inheritance.
Continuous DNA synthesis takes place on the leading strand. As the helix unwinds, DNA synthesis on the lagging strand restarts numerous times, resulting in numerous brief pieces known as "Okazaki fragments," which are then joined by DNA ligase to form a single DNA molecule.
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i cant understand this huh
Answer:
Ciliated epithelium
When the columnar or cuboidal cells bear cilia on their free surface they are called ciliated epithelium. Their function is to move particles or mucus in a specific direction over the epithelium organs like bronchioles and fallopian tubules.
Is alfalfa gmo? Yes or no
Answer:
Yes, I'm pretty sure it is. Hopefully, this helps.
Explanation:
Answer:
yee
Explanation:
The sensory __________, such as the ear and eye, are sensitive to external or internal stimuli. Organs receptors transduction adaptation.
Answer:
organs
Explanation:
took on test
Those who argue that biology and genetics have the strongest influence on development emphasize ________.
Those who argue that biology and genetics have the strongest influence on development emphasize nature.
What are the influence of the nature in the development?The natures refers the hereditary factors or genes of the child.It helps in building a child's personality traits.It also defines the child's physical appearance.The biology influence development by the gene. One gene cane interact with other gene and environment in which some dominantThe biologically determined characteristics (nature) includes certain genetic diseases ,eye color, hair color, and skin color. The other things are also includes like life expectancy and height but it is also depends upon environment and lifestyle of individual.
The biological factors which includes genetic influences , brain chemistry, hormone levels, nutrition and gender.
The five different forces the influenced human evolution like nature selection, random genetics drifts, mutation, population mating structure and culture.
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The connective tissue layer that surrounds an entire muscle is called ______. Multiple choice question. epimysium endomysium perimysium
Answer:
the answer is epimysium
Explanation:
The connective tissue layer that surrounds an entire muscle is called the epimysium, which is the first option as it is composed of dense, irregular connective tissue and serves to protect the muscle.
What is epimysium?The epimysium plays a role in transmitting force from the muscle to the surrounding structures and connects to the tendons and other connective tissues that attach the muscle to bone and other structures, and the epimysium is just one of the three connective tissue layers that make up the structure of a skeletal muscle; the other two layers are the perimysium and the endomysium, and together, these three layers of connective tissue provide the necessary structural support for skeletal muscles to function properly.
Hence, the connective tissue layer that surrounds an entire muscle is called the epimysium, which is the first option.
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Give two ways that differentiation is the same in plants and animal.
Differentiation in plants and animals involves the specialization of cells for specific functions, and it results in the development of different tissues and organs.
What is differentiation in plants and animals?Differentiation refers to the process by which cells become specialized in structure and function. In plants and animals, this process occurs during development and results in the formation of different types of cells, tissues, and organs.
During differentiation, cells undergo changes in gene expression, which leads to the production of different types of proteins and other molecules. These changes can be triggered by various signals, such as hormones, growth factors, and environmental cues.
In animals, differentiation occurs during embryonic development and results in the formation of different types of tissues, such as muscle, bone, and nerve tissue. In plants, differentiation occurs during both embryonic development and growth and results in the formation of different types of tissues, such as root tissue, leaf tissue, and stem tissue.
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Chromosome number is reduced from 2n to 1n. this occurs in ___________
anaphase l
telophase l
anaphase ll
telophase ll
Answer:
I'm not completely sure but I think anaphase 2
DNA is coded to RNA, which must travel from the nucleus to the cytoplasm to be read. Why does the cell need to transcribe the DNA into RNA rather than copying the DNA directly?(1 point)
DNA requires too much energy to code; building RNA is more efficient.
DNA cannot be copied; it must be translated to RNA and then back to DNA.
DNA is double stranded and cannot fit through the nuclear membrane; RNA is single stranded.
DNA cannot be read by ribosomes; they can only read RNA.
Answer:DNA is double stranded and cannot fit through the nuclear membrane; RNA is single stranded.
Explanation:
DNA is double stranded and cannot fit through the nuclear membrane; RNA is single stranded. DNA could get damaged because of the osmotic nature of cytoplasm. Therefore, option (C) is correct to mitigate he damage.
What is transcription?The proteins are produced by cells by the transcription and translation of certain genes from their DNA into molecules of messenger RNA (mRNA), chains of amino acids, and finally fully functioning proteins.
The DNA would need to go to the cytoplasm in order to directly make proteins. Because of the osmotic properties of cytoplasm, DNA may become damaged during the translocation process. The cellular machinery does not directly make proteins from DNA in order to reduce the harm.
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HELLLP!!!!! Seeds are one way that plants reproduce. What are the reproductive advantages of using seeds to reproduce? What are the two major divisions of seed plants, and how do plants in each of these divisions reproduce?\
Explanation:
1-Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil.
2-Vascular plants are subdivided into two classes: seedless plants, which probably evolved first (including lycophytes and pterophytes), and seed plants. Seed-producing plants include gymnosperms, which produce “naked” seeds, and angiosperms, which reproduce by flowering.
Here u go <3
Answer:
The Seed Coat. The seed coat is one major advantage seeds have over spores. Nourishment. Each seed contains nourishment for the embryo inside the seed.
Explanation:
Modern scientists can splice DNA from different species together to produce what is referred to as ______ DNA.
Answer
Recombinant DNA. a genetic material that has been spliced together from multiple types of organisms. Transgenic organism. an individual that receives recombinant DNA
Explanation:pa brainliest asnwer po
What are not examples of limiting nutrients
Answer:
Variations in the supply of a non-limiting nutrient do not affect the growth of autotrophs, and thus they do not affect the concentrations of the limiting nutrient in either the accessible or the inaccessible pool.
Humans can use starch as an energy source but are unable to use cellulose for energy. Which
of the following best explains the difference in how these molecules are processed in the body?
Humans can chew starch but cannot chew cellulose.
Humans dissolve starch in blood plasma but cannot dissolve cellulose
Humans make an enzyme to digest starch but cannot digest cellulose
Human muscle cells can absorb starch but cannot absorb cellulose
Answer:
human make enzymes to digest starch