Answers
Answer:
1.) spindle fibers and centrioles form
2.) chromosomes align on metaphase plate
3.) chromosomes move to opposite poles
4.) two identical nucleotides form
Mitosis is important because it is responsible for the growth of is responsible for human development.
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
Explanation:
Related Questions
Adult axolotls are typically aquatic, with gills and underdeveloped limbs, as shown in the image. Under certain conditions, an axolotl can undergo metamorphosis to its terrestrial form, which has completely developed limbs and lungs instead of gills. When an aquatic axolotl is either given food containing the element iodine or is injected with iodine, the axolotl rapidly undergoes metamorphosis to the terrestrial form.
Based on this information, what is most likely true about the effect of iodine on axolotls?
A. Iodine is toxic to the aquatic form of the axolotl.
B. Iodine influences the expression of the genes that control metamorphosis.
C. Iodine causes mutations in the genes that regulate metamorphosis.
D. Iodine causes the gills and limbs to evolve.
Answers
Answer:
B
Explanation:
B
Fossils-preserved remains or traces of what
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Answer:
Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils range in age from 10,000 to 3.48 billion years old. The observation that certain fossils were associated with certain rock strata led 19th century geologists to recognize a geological timescale.
Explanation:
good luck have a nice day
In the table below, fill in the missing cause and effect of two examples of competition in a community.
Answers
Answer: Effect - The lions will move to different place to eat. Cause - The population of female hyenas is a lot less then male hyenas
Explanation:
Action potentials move along axons ________. Action potentials move along axons ________. more rapidly in myelinated than in unmyelinated axons by activating the sodium-potassium pump at each point along the axonal membrane more slowly in axons of large than of small diameter by the direct action of acetylcholine on the axonal membrane by reversing the concentration gradients for sodium and potassium ions
Answers
Answer:
By reversing the concentration gradients for sodium and potassium ions.
Explanation:
Axons are long thread like nerve cells which impulses are conducted from the cells of the body to the other cells. Actions potential moves along with axons by reversing the concentration gradients. Most of the neurons in human brains are interneurons. The axons are presents in these nerve cells which connect with axon hillocks.
Water enters the _____________ of the leaves?
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PLEASE HELP I AM GIVING 15 POINTSSS ONLY IF YOU ARE CORRECT I WILL GIVE BRAINLIEST
Guppies living in a stream have a variety of spot patterns, some of which provide good camouflage against the stones in the streambed and others of which make them stand out against the background, allowing potential mates to see them more easily. If a predator that hunted by sight were introduced to the stream, what would be the most likely long-term consequence for the guppy population?
A) The number of guppies in the population would decline, although most of the remaining ones would be uncamouflaged.
B) The guppy population would devise a mutation that allowed the camouflaged guppies to find mates by scent or sound.
C) The guppy population would die out since none of the guppies would be able to find mates.
D) The number of camouflaged guppies in the population would increase while the number of successful matings decreased.
Answers
Answer:
The answer is D
Explanation:
Hope this helps!!
Answer:
d
Explanation:
D) The number of camouflaged guppies in the population would increase while the number of successful matings decreased.
What are the two most important changes that occur with matter? Select two answers.
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Most fossils are found in _____ rock. A. Igneous B.Metamorphic C. Sedimentary D. All of the above
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Answer:
metamorphic rock
Explanation:
because most of the fossils are found there
Which organisms were the least numerous? Why? (In a forest environment!)
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Because top consumers have less energy than producers, there is only enough food for a few top level consumers, but there is plenty of food for herbivores lower down the food chain.
What is forest ecosystem?Forest ecology is the scientific study of forest patterns, processes, flora, fauna, and ecosystems. Forest management includes forestry, silviculture, and forest management.
The existence of all species in the forest in a well-balanced and environmentally friendly manner is the function of the forest ecosystem.
Forest ecosystems are classified as boreal, temperate, or tropical rainforest ecosystems.
The transfer of energy from one trophic level to the next, up the food chain, is shaped like a pyramid, with the base being wider and the top being narrower.
Because of this inefficiency, there is only enough food for a few top-tier consumers, but plenty for herbivores lower down the food chain.
Thus, top consumers were the least numerous.
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Albinism results from mutations in an individual's DNA. Explain how that ultimately results in an non-functional protein. Use all of the terms from your flowchart above in your explanation. Also include locations and any enzymes involved. **TERMS USED: "transcription, translation, amino acid(s), protein, gene, mRNA, tRNA, trait "
Answers
Answer:
Please find the explanation below
Explanation:
Albinism which is a condition characterized by the lack of skin pigment is caused by a mutation in the nucleotide sequence that encodes the melanin protein. However, this mutated gene undergoes TRANSCRIPTION into a mutated mRNA sequence, and subsequently undergoes TRANSLATION into a mutated amino acid sequence.
The amino acid sequence results in a non-functional protein as the nucleotide sequence of the original DNA has been altered. This non-functionality of the mutated protein results in ALBINISM TRAIT.
The relationship between the remora and the shark is an example of
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Answer:
Additional Information: Mutualism is the relationship where both organisms get positive results from it. An example of mutualism is the relationship between remora and shark.When one organism lives on another organism, that type of symbiotic relationship is called parasitism.
which part of a plant helps transport water to the leaves and the flower?
Answers
Answer:
Xylem carries water from the roots to the leaves. Phloem carries minerals from the roots to the leaves. Xylem carries sugars from the flowers to the stems. Phloem carries water from the flowers to the stems.
Explanation:
The xylem tissue transports water and minerals from the roots to the leaves
In what organelle do plants convert carbon dioxide and water to sugar?
chloroplasts
nucleus
stems
leaves
Please hurry NO LINKS I WILL REPORT
Answers
Answer:
Explanation:
the chloroplasts
so your answer would be Chloroplasts :)
The function(s) of the sternum is (are) to
-protect the kidneys
-protect the heart
-connect the ribs
-connect the pectoral girdle
-connect the vertebrae
-protect the brain
(select all that apply”
Answers
Answer:
The 3rd one actually cause it also protects your heart
The correct options for the given question about Sternum are "All the Options"
What are the functions performed by Sternum ?The bone known as the sternum is situated in the centre of our chest. It's also known as the breast bone.Our sternum performs two crucial tasks, one is Protection and other one is Support.The sternum and ribs serve to shield the torso's internal organs, including the heart, lungs, and blood arteries in the chest.Our collarbone and the majority of our ribs link to the sternum, as well as other skeletal components. A few of the muscles in our upper abdomen and chest are also connected to the sternum.Thus we conclude that our sternum performs all the functions listed in the question which include protection of kidneys, protection of heart, connection with the ribs, connection with the pectoral girdle, connection with the vertebrae, protection of the brain and many more.
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Plz HELP!!!!BRAINLIEST FOR THE PERSON WHO ANSWERS FIRST!!!!!
A person who receives the blood is referred as?
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Answer:
The Person who receives the blood from the healthy person is called a donor.
Answer
Recipient
Explanation:
There u go guess there's no explanation for that
Please help meeeeee???
Answers
Answer:
The one you chose is correct-
That is, assuming that the yellow one is the one you chose.
Q. What are the different ways in which glucose is oxidised to provide energy in the various organism ?
Q. How is oxygen and carbon dioxide transported in human beings ?
Answers
Answer:
Hey mate......
Explanation:
This is ur answer.....
1A) There are 2 ways:-
• Anaerobic Respiration.
The anaerobic respiration process takes place in the absence of oxygen.
• Aerobic Respiration.
In aerobic respiration, breakdown of pyruvate takes place in the presence of oxygen to give rise to 3 molecules of carbon dioxide and water.
2A) Oxygen is transported from lungs to body cells in the form of oxyhemoglobin . the main 2 gases exchanged are 02 & C02 . 02 is absorbed by blood capillaries from lungs alveoli by diffusion while C02 is absorbed by blood alveoli from blood capillaries by diffusion.
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please help I am in class and I need to turn in asap
Answers
The scientific name for an organism includes which taxa?
A. class and family
B. domain and kingdom
C. genus and species
D. kingdom and phylum
Answers
Answer:
C
Explanation:
Scientists name animals and plants using the system that describes the genus and species of the organism.
Farmer Tom decides that he is going to stop using chemical fertilizers and pesticides on his farm, and is going to start practicing organic agriculture. Outline THREE practices that he would have to implement.
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50 POINTS!!!!!!!!! ANSWER ALL!!!!(This is a repost)
1. Fill in the complementary DNA strand using DNA base pairing rules.
2. Fill in the correct mRNA bases by transcribing the bottom DNA code
3. translate the MRNA codons and find the correct amino acid using the codon table
4. Use the MRNA sequence to find the correct anticodon for the TRNA molecule
Answers
Hope it helps
10 POINTS AND BRAINLIEST TO FIRST CORRECT ANSWER
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In what ways have members of the gray whale species been affected by efforts to protect biodiversity? Check all that apply.
They are currently endangered and almost extinct.
Their numbers have increased because of the Endangered Species Act.
Their numbers have increased mostly due to captive breeding.
They are still being hunted, and their numbers are declining.
They are an example of protecting biodiversity through the passage of laws.
Answers
(E)they are an example of protecting biodiversity through the passage of laws.
Explanation:
Grey whales are nearly 45 meters long baleen whales live in the pacific ocean. Grey whale species were on the line of extinction due to overhunting or whaling in the mid 90's but due to the protection given under Endangered Species Act, its number increased now to 25,000 and in 1994 it was removed from endangered species list. Endangered Species Act's purpose is to protect those animals and plants which are at the risk of extinction and increase their number in the wild. It is strongest law implemented to save biodiversity. So grey whale species have increased due to the Endangered Species Act which is an example of protecting biodiversity through the passage of laws.
Answer:
B and E
Explanation:
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If two mice both have grey fur, similar body shapes, and live in the same area, they would likely have been considered the same species by Linnaeus when he first developed his system of classification in the early 1700s. What could be done today, that Linnaeus could not do, to help us determine more clearly if they are the same species?
Answers
Answer:
compare gene or protein sequences between the two mice. ... An unknown plant species has separate male and female gametophytes, and releases spores into the environment.
Explanation:
In the human brain, the occipital lobe, controls vision. Which of the letters on the diagram above indicated the occipital lobe of the human brain?
A) e
B) a
C) d
D) c
Answers
Answer:
A) e
Explanation:
Answer:
option. A
E. represent the optical lobe of the human brain
hope it helps
Does drought have to do with geologic in nature?
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students are modeling mRNA during the process of protein synthesis. which answer choice correctly describes the model of mRNA strand being transcribed
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Answer:
This question lacks options, the options are:
A. the mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine
B. the mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine
C. the mRNA strand is an exact copy of the DNA template strand; however uracil instead of adenine is paired with thymine
D. the mRNA strand is an exact copy of the DNA template strand; however, uracil instead of thymine is paired with adenine
The answer is B
Explanation:
Protein synthesis which encompasses how gene is used to synthesize proteins consists of two processes namely; transcription and translation.
- Transcription is the process whereby the sequence of a DNA template is used to synthesize a mRNA strand. The mRNA sequence is synthesized using the COMPLEMENTARY BASE PAIRING RULE, which states that Adenine base (A) will always hydrogen pair with Thymine (T) while Guanine (G) will always pair with Cytosine (C).
This means that the mRNA strand produced is complementary to the DNA template strand that was transcribed. However, Uracil base (U) replaces thymine (T) in the mRNA molecule because Thymine is not found in RNA. Hence, Uracil instead of Thymine pairs with Adenine in the mRNA.
That is;
A - U, T - A, G - C.
Select the correctly described examples of host defense mechanisms. Check All That Apply Innate anatomical and physiological barriersInnate anatomical and physiological barriers Innate cellular and chemical defensesInnate cellular and chemical defenses Innate host defenses due to B and T cells and their productsInnate host defenses due to B and T cells and their products Use of drugs and antibioticsUse of drugs and antibiotics Specific recognition of invaders by physical barriersSpecific recognition of invaders by physical barriers
Answers
Answers: examples of host defence mechanism include: Innate anatomical and physiological barriers, Innate cellular and chemical defenses.
Explanation:
The capability of the human body to resist almost all types of organisms or toxins that tend to damage the tissues and organs is known as IMMUNITY. This host defence mechanism can be classified into INNATE or adaptive immunity.
The immunity that results from general processes, rather than from processes directed at specific disease organisms is called the INNATE IMMUNITY. The anatomical and physiological barriers of the innate immunity provides the first line of defence against pathogens. Examples of these barriers of the innate immunity includes:
--> Destruction of swallowed organisms by the low stomach pH and digestive enzymes
--> The vigorous mucociliary clearance mechanisms of the respiratory airways and lungs.
--> Resistance of the skin to invasion by organisms
While examples of innate cellular and chemical defenses include:
--> Phagocytosis of bacteria and other invaders by white blood cells and cells of the tissue macrophage System
--> lysozymes, a mucolytic polysaccharide that attacks bacteria and cause them to dissolute.
--> basic polypeptides which react and inactivate certain types of gram- positive bacteria
-->natural killer lymphocytes that can recognize and destroy foreign and tumor cells.
The food chain shows the number of organisms at each level of a lake community food chain. 12,000 Water Plants 1,900 Caddisfly larva 300 Bluegill 10 Bass Why are there fewer bass in this food chain?
A They have fewer offspring.
B. They have less energy available to them.
c They are stronger and use up more energy. D. They cannot get food from the soil like plants.
Answers
Answer:
They are stronger and use up more energy
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1. What causes the different phases of the moon's light and dark appearance?
A. how much sunlight it reaching the moon
B.the distance between the moon and the Earth
C. the moon's position in relation to the Earth and sun
D. the speed the moon is travelling next to the Earth
Answers
Answer:
the answer is letter D.
Explanation:
i hope thats correct
The Moon is visible in the sky
A.
only during the day.
B.
all night long during every night of the month.
C.
only at night.
D.
sometimes at night and sometimes during the day.
PLEASE HELP ASAP!!!