Answer:
We know that all cells come from pre-existing cells because of cell division.
What can you infer is the reason fruit flies are the most commonly used organism for this type of investigation
In the case of genetic investigation, scientists used fruit flies as their model organism since they share 75% of the genes that cause disease with humans. Fruit flies are also great to work in a research setting because they are relatively easy to take care of, especially compared to larger and more expensive organisms like rats or fish.Answer:
Explanation:
Hope this helps!!
Which of the following correctly describes the two phases of the cell cycle?
A. Cells grow and develop during interphase. Cells reproduce during the mitotic phase.
B. Cells grow and develop during the mitotic phase. Cells reproduce during the interphase.
C. The nucleus of a cell divides during interphase. The cytoplasm of a cell divides during mitotic phase.
D. The nucleus of a cell divides during mitotic phase. The cytoplasm of a cell divides during interphase.
Answer: the answer is A
Explanation:
Cell cycle refers to the series of processes that leads to the growth/development and division of a cell. The cell cycle uses MITOSIS for cell growth. Mitosis comprises of two distinct stages namely: INTERPHASE AND MITOTIC PHASE. The interphase is referred to as the resting phase of the cell in which the cell grows and develops.
On the other hand, MITOTIC PHASE is the stage where the actual division of the nucleus (karyokinesis) and cytoplasm (cytokinesis) generally called CELL DIVISION occurs. Therefore, the cell reproduces i.e. one cell forming two, in the mitotic phase.
Which type of tissue adds structure to
the body?
1. Muscle
2. connective
3.nerve
4.epithelial
Answer:
4. Epithelial layer
Explanation:
Get my Joke right u get brainlyest:
How do cows walk?
The ____________ is a muscular dome that forms the inferior boundary of the thorax, separating the thorax from the abdomen.
Answer: the answer is diaphragm
how long can you keep a fresh turkey in the refrigerator?
2 days in the fridge
WIll GIVE BRAINLIEST!!!!
Answer:
Both A and B
Explanation:
This was on my test today and I got it correct.
In __________ ribosomes can attach to the mRNA and begin translation even though transcription has not been completed.
Answer:
prokaryotes
Explanation:
All cells translate using ribosomes. Prokaryotic DNA lacks a nucleus, therefore translation happens before transcription. Simultaneous transcription and translation takes place.
What is translation in prokaryotes?In all cells, translation takes place at ribosomes. Prokaryotes translate DNA before transcription is finished because their DNA is not bound by a nucleus. Both transcription and translation take place at once. When a start codon on mRNA attached to a small ribosomal subunit is recognized by an initiator tRNA anticodon, translation can start. A second tRNA is recruited as the big ribosomal subunit joins the tiny subunit.
This is not conceivable in eukaryotes because translation takes place in the cytoplasm outside of the nucleus, whilst transcription takes place in a membrane-bound nucleus.
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During respiration, most atp is formed as a direct result of the net movemnet of
Answer:
During respiration, most atp is formed as a direct result of the net movement of protons flowing through a channel
Help plzz with biology USA test prep.
Answer:
i cant see it
Explanation:
The leakiest capillaries, which allow large substances and cells to cross the capillary wall, are called ________________.
Answer:
sinusoidal capillaries
Explanation:
Transcribe this section of DNA.
TAC-GGA-TTT-AAA-ACG-ATC
DALA
HELP PLEASE!!!
when a cell is in anaphase what happens to the dna?
Answer:
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.Explanation:
What is unique about active sites?
A: active sites provide cells with energy.
B: active sites are specific to certain substrates (reactants).
C: active sites store the genetic information of cells.
The Unique feature of Active sites is that active sites are specific to certain substrates (reactants)
Active sites are specific regions of an enzyme where substrate molecules bind in other to bring about a chemical reaction.
The active site is made up of amino acid which forms temporary bonds with the substrate otherwise known as the binding site and the residues which brings about a reaction of that substrate.
Active sites are specific to certain substrates (reactants). Therefore, option (B) is correct.
Active sites are vital to enzymes, proteins that aid biological processes. They have a distinctive form that matches their substrate molecules. This specificity allows only particular substrates to bind to and interact with the active site, catalysing processes. This is called the "lock and key" or "induced fit" model.
Enzymes' catalytic action depends on active sites. A substrate attaches to an enzyme's active site and changes conformation, lowering the reaction's activation energy. This speeds up the reaction. After the reaction, the products are released and the enzyme's active site can bind to another substrate. Therefore, option (B) is correct.
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the protein that carries oxygen in our blood is known as
Iron is a component of hemoglobin, which enables it to absorb oxygen from the air we breathe and transport it throughout the body.
What is Hemoglobin?The iron-containing oxygen-transporting metalloprotein known as hemoglobin, often known by the abbreviations Hb or Hgb, is found in the red blood cells of almost all vertebrates as well as some invertebrate organs. The oxygen from the respiratory organs is transported to the rest of the body by hemoglobin in the blood.
The normal ranges for haemoglobin are different for males and females, and they also vary depending on the ethnicity of the population. Additionally, age is a factor, particularly for women.
When you have anemia, your body doesn't produce enough healthy red blood cells to supply your tissues with enough oxygen. Anemia, commonly known as low hemoglobin, can make you feel exhausted and frail.
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The periosteum and the endosteum are both membranes.
a.
True
b. False
Big brain time The sun is a planet and we are on it true or false >:)!!!!
Answer:
False.
Explanation:
The Sun is a Star, the Earth orbits the Sun.
Pick the odd one out from each of the groups given below on the basis of respiratory organs. Give
reason for your answer.
(a) Cockroach, grasshopper, snail, ant
(b) Lizard, cow, earthworm, snake
(c) Crocodile, whale, dolphin, fish
fasst answer
if ur answering correctly i will sure mark u as a brainlist plz guisss
Answer:
a
Explanation:
because they are all arthropods
what bonds in an atp molecule store the chemical energy used by cells?
Answer:
quais ligações em uma molécula atp armazenam a energia química usada pelas células?
Explanation:
espero ter ajudado boa noite
A mineral is defined as a natural substance that is neither animal nor plant, has a
A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
B. solid substance or element that is essential to human nutrition.
C. naturally occurring, crystalline, inorganic solid that contains only one element.
D. naturally occurring inorganic solid consisting of chemical elements in specific proportions, whose atoms are arranged in a repeated internal pattern.
Answer:
the answer is A. specific composition and structure, and contains one or more silicon-oxygen tetrahedrons.
Explanation:
Most plants and animals in the world reproduce by sexual reproduction. Which process is responsible for the genetic variation found in organisms that reproduce this way?
In what layer of the atmosphere is weather occuring and the layer where we live?
Answer:
Atmosphere takes place in the stratosphere and we live in troposphere
what processes in your cells produce the co2 that you exhale?
Answer:
Co2 is released from the pyruvate that is formed during glycolysis, and CO2 is also released during the citric acid cycle.
Explanation:
Cellular respiration in mitochondria produces [tex]CO_2[/tex] as a waste product, exhaled during breathing.
Cellular respiration occurs mostly in mitochondria. During cellular respiration, glucose and other nutrients are broken down to make ATP. This procedure produces [tex]CO_2[/tex]. [tex]CO_2[/tex] from mitochondria diffuses into the circulation.
Breathing exchanges [tex]CO_2[/tex] for oxygen in the lungs from the circulation. Your body releases [tex]CO_2[/tex] when you exhale. This important cycle eliminates unwanted [tex]CO_2[/tex] and supplies cells with oxygen for respiration and energy generation.
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Define gamete and zygote. What number of chromosomes does each have?
Answer:
Gametes (23) reproductive cell produced during meiosis that has the haploid number of chromosomes
Zygote (46) diploid cells
What is the average beak depth of the current finch population?
Which is true about sex-linked traits?
a. They are never seen in women
b. They are found on Barr bodies
c. They are carried on the Y chromosome
d. They are passed from mother to son
Answer:
I think the answer is B
Explanation:
1. A hedgehog lives in a backyard in England. Every night, the house
owner puts out a bowl of canned cat food and hard-boiled egg. The hungry
hedgehog eats some of the food, then stops when it is no longer hungry. This
pattern helps the hedgehog to maintain a steady energy level and weight. What is
the name for keeping a stable internal environment despite changes in the
outside environment?
A. hormonal control
B. stimulus and response
C. balance
D. homeostastis
Answer: D. homeostastis
15. Which of the following is controlled by multiple genes and influenced by the environment? *
Codominant traits
Single gene traits
Polygenic traits
Incomplete dominant traits
Question 4
For which type of anemia would getting a family health history be most important?
a. iron deficiency
b. sickle cell anemia
c. normocytic anemia
d. megaloblastic anemia
Answer:
Sickle cell anaemia is what I think is the answer
what bonds in an atp molecule store the chemical energy used by cells?
Answer:
quais ligações em uma molécula atp armazenam a energia química usada pelas células?
Explanation:
espero ter ajudado boa noite