Answer:
The answer is: Clonal selection produces memory cells that are long-lived and can recognize the antigen in the future.
Explanation:
What would happen to skin cells if mitosis did not take place
Answer:
Skin cells would die and not be replaced.
Explanation:
Which organelle is the control center of the cell; contains DNA; only found in Eukaryotic cells?
A. Mitochondria
B. Nucleus
C. Lysosome
D. Ribosome
a person's physical and sexual development is controlled by the
A. nervous system
B. endocrine system
C. Circulatory system
D. Muscular system
E. Other
Answer:
E
Explanation:
hi plz someone talk to me
Answer:
yes sure what's the topic!?!?!?
In the experiment by Nirenberg and Matthaei described in the animation, why does it make biological sense that the U2 oligonucleotide showed such poor ability to bind to ribosomes and tRNA charged with phenylalanine
We have that for the Question "In the experiment by Nirenberg and Matthaei described in the animation, why does it make biological sense that the U2 oligonucleotide showed such poor ability to bind to ribosomes and tRNA charged with phenylalanine"
Answer:
This is because, the genetic code could not involve a two-base codon because such a system would not provide enough unique codons to cover all 20 amino acids.
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What is metastasis and what body systems are involved in the process?
Answer:
Metastases most commonly develop when cancer cells break away from the main tumor and enter the bloodstream or lymphatic system. These systems carry fluids around the body.
Explanation:
In metastasis, cancer cells break away from where they first formed, travel through the blood or lymph system, and form new tumors in other parts of the body.
Describing Cause and Effect Select the question mark. Choose the cause that brings about the effect. option a: the chicks hide in tall grass. b: not much grass grows on the nesting grounds. c: the chicks parents bring him good. d: the gray chick hatches.
Answer:
Cause: Not much grass grows on the nesting grounds
Effect: Some Arctic tern chicks have nowhere to hide
Which biome are the best suited for agriculture? Explain why each of the biomes you did not specify is less suitable for agriculture.
A muscle __________ (which is actually one long muscle cell) has hundreds of nuclei along its length to speed up the chemical processes that must occur before it can contract.
Fill in the Blanks
Cancer occurs when there is a _____________ in the gene. Division in cancer cells is _______________. Cancer cells crowd out other __________cell and function _________________. They can also _____________the correct functioning of major organs.
Answer:
Disease
Propatogenic
Cell
include
the condition of having a diploid chromosome complement in which one chromosome lacks its homologous partner.
Monosomy: the condition of having a diploid chromosome complement in which one chromosome lacks its homologous partner.
A trisomy is a chromosomal disorder characterized by an additional chromosome, so the person has 47 instead of 46.
Nullisomic is a genetic condition involving the lack of both the normal chromosomal pairs for a species (2n-2).
So, the correct answer is 'Monosomy'.
To maintain homeostasis, ADH functions via a ______ feedback mechanism that responds to blood ______ concentration.
Answer:
negative, salt
Explanation:
ADH functions via a negative feedback mechanism that responds to blood salt concentration to maintain homeostasis.
What is homeostasis?In order to maintain a constant state between internal conditions and the external environment, a cell's response to its environment is known as homeostasis.
Because of their complexity and uniqueness to living things, the coordinated physiological responses that keep the majority of the body's dynamic equilibrium in place have been given the name "homeostasis."
Ex: When it's cold outside, we start to shiver and use energy to stabilize our body temperature. This is where the cell regulates cell temperature, fluid balance, sugar balance, etc. through it.
Therefore, there is negative feedback that responds to blood salt concentration.
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How does a frog survive in water as well as on land?
How many seconds would it take DNA polymerase to replicate one set of human chromosomes (6,000,000,000 bytes long)
The typical human chromosome has about 150 million base pairs that the cell replicates at the rate of 50 pairs per second.
What is chromosome ?A chromosome is a thread-like structure present in the nucleus of cells such as plant, animal and human cells and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.
It is composed of three components, DNA, proteins and RNA, amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.
Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).
The histone protein is basic, whereas, the DNA is acidic, so it can be neutralized; DNA in chromosome is present in two forms such as Euchromatin and Heterochromatin.
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the specialized organelles that carry out photosynthesis are called
Answer:
Chloroplasts
Explanation:
PLEASE HELP ME IM TIMED!
Answer:
D. (The last one)
Explanation:
Everything starts with a cell and you grow by gaining more.
how does the flow rate through capillaries affect the gas exchange rate between the blood in capillaries and interstitial fluid?
Answer:
the gas starts to bow
Explanation:
The flow rate through capillaries affect the gas exchange rate between the blood in capillaries and interstitial fluid by gas starts to blow.
What is interstitial fluid?In terms of nutrition, interstitial fluid serves as a sort of refueling station for our cells. Salt, fatty acids, glucose, and minerals like calcium, magnesium, and potassium are all present in interstitial fluid.
Blood capillaries are where the nutrients in interstitial fluid are obtained. Additionally, metabolic waste products can be stored in interstitial fluid.
A continuous glucose monitor will use a formula to offer a near estimate of what our blood glucose level is likely to be at that particular moment because the glucose level in interstitial fluid is not exactly the same as that in our blood.
Therefore, The flow rate through capillaries affect the gas exchange rate between the blood in capillaries and interstitial fluid by gas starts to blow.
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what happens to an ecosystem if its river is destroyed
Answer:
the earth will eventually crack amd form a new river and the clouds will precipitate and cause water for the stream of the river
Answer:
If the river was to be destroyed it would take away many native plants and water to farms, homes, businesses, and schools that are local can be taken away.
Explanation: Rivers nourish entire ecosystems and give habitat to native plants and animals.
The movement of water across cellular membranes through aquaporins is known as?(1 point)
endocytosis
active transport
simple diffusion
osmosis
Answer:
- osmosis -
Explanation:
The quick trick is that osmosis can only occur in water or insolvent movements!
Think of fish, fish have a lot to do with osmosis because the water will go through the fish's skin/gills which will help them breathe and thrive.
!! hope that helps love you guys !!
The movement of water across cellular membranes through aquaporins is known as osmosis. Water moves down the concentration gradient. The fourth option is the correct answer.
How do molecules move across the cell membrane?Molecules can pass the cell membrane both actively and passively. In passive transport, no energy or ATP is required. Molecules can move from a higher concentration to a lower concentration.
Diffusion and osmosis are examples of passive transports. In diffusion, gases and other small molecules pass the cell membrane from a higher to a lower concentration. Water is a polar molecule, so it doesn't pass the membrane due to its nonpolar nature. Cells have aquaporin channels that are made for water.
Through aquaporins, water passes into the cell. This is called osmosis. In active transport, energy is required. When a molecule passes from a lower concentration to a higher concentration, energy is needed. An example is sodium-potassium ATPase.
Hence, the correct answer is osmosis. The fourth option is the correct answer.
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Help me Pleaseeeee its only for grade 5
in the monohybrid crosses performed by mendel, the f1 plants always displayed ____.
in the monohybrid crosses performed by mendel, the f1 plants always displayed one trait
The answer to your question would be; one trait
I hope this helps!
Which statement best describes the subscapularis muscle?
Answer:
b. is correct
Explanation:
definition of tissue
The group of similar cells which work together to perform a particular function is called a tissue....
You may take help from the attachment....
white blood cells that circulate in the bloodstream and are an important part of the body’s immune system are called ________.
Answer:
Lymphocytes
Explanation:
A lymphocyte is a type of white blood cell that is part of the immune system. There are two main types of lymphocytes: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins. The T cells destroy the body's own cells that have themselves been taken over by viruses or become cancerous.
Based on cell theory, which of these answer choices would describe one reason a virus is considered nonliving?
Answer: Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.
Eukaryotic chromosomes contain two general domains that relate to the degree of condensation. These two regions are ________. A.
Answer:
these 2 regions are called
heterochromatin and euchromatin O
hope this helps
a critical event in the death of a cell is caused by
Answer:Apoptosis and autophagy are both forms of programmed cell death. Necrosis is the death of a cell caused by external factors such as trauma or infection and occurs in several different forms.
Explanation:
Hello, can you help me answer this?
____________________________
-5 sentences with verb in the present tense (the verb in bold)
1:
2:
3:
4:
5:
_____________________________
5 sentences with verb in the past
1:
2:
3:
4:
5:
______________________________
5 sentences with future verb
1:
2:
me:
4:
5:
---------------------------------- ACTIVITY 2 ↓
5 sentences with subjunctive verb mood
1:
2:
3:
4:
5:
________________________________
5 sentences with indicative mood of the verb
1:
2:
3:
4:
5:
________________________________
5 sentences with an imperative verb
1:
2:
3:
4:
5:
_________________________________
(PLEASE HELP ME? I give crown
Answer:
(i will bold all verbs)
-sentences with future verb
1. I will go for a run tomorrow.
2. I am going to write my essay later.
3. On Friday, I will walk to the store with you.
4. In ten minutes I will go for a swim.
5. Later I will watch my show.
b19 , b20
help!!
need answer
pls also check my other questions!
Which type of fracture usually requires surgery?
*Hip fracture correct
Answer:
b. Hip fracture
Explanation: is correct