Which of the following is true about cells?
A.
In general, eukaryotic cells do not have a true nucleus or membrane-bound organelles, whereas prokaryotic cells contain both a nucleus and organelles enclosed by membranes.
B.
Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
C.
Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is well-defined and organelles that are separated from the cytoplasm by membranes.
D.
In general, prokaryotic cells do not have a true nucleus or membrane-bound organelles, whereas eukaryotic cells contain both a nucleus and organelles enclosed by membranes.
Answer:
d
Explanation:
d 100% literally was just learning about this
Which of the following pairs of characteristics is true of sexual reproduction?
A. It has no effect on genetic variation, and its processes are
evolutionarily diversified in eukaryotes.
B. It increases genetic variation, and its processes are evolutionarily
diversified in eukaryotes.
C. It has no effect on genetic variation, and its processes are
evolutionarily conserved in eukaryotes.
D. It increases genetic variation, and its processes are evolutionarily
conserved in eukaryotes.
Answer: Abstract The genetic variation in a partially asexual organism is investigated by two ... These results apply to large populations with stable reproductive systems. ... Asexuality affects this variation in two different ways. ... in their means, the resulting combined distribution will not have two distinct peaks but ...
Explanation:
Answer
The answer is B
explanation
How was the earths biosphere affected during the Precambrian era
Answer:
Some three billion years ago, the Earth's atmosphere was virtually devoid of oxygen. At about 2.4 billion years ago, oxygen was released from the seas as a byproduct of photosynthesis by cyanobacteria. Levels of the gas gradually climbed, reaching about one percent around two billion years ago.
Explanation:
Hope this helped!
What is the resulting amino sequence if the following mRNA molecule undergoes translation 5’ AUG AGU CCU CUU UGA 3’ ?
Answer:
From the translation of the mRNA molecule 5’ AUG AGU CCU CUU UGA 3’ results the amino acid sequence Met-Ser-Pro-Stop, that is, Methionine-Serine-Proline and the last triplet being a stop codon.
Explanation:
Messenger RNA (mRNA) molecule is in charge of conducting the encoded genetic information to produce the protein synthesis, organized in a sequence of nucleotides called the genetic code. The arrangement of the nucleotides is in triplets of bases or codons, which encode the synthesis of an amino acid (translation), determine the beginning of the synthesis and also establish the stop.
In the given sequence, 5’-AUG-AGU-CCU-CUU-UGA-3’ results the amino acid sequence Met-Ser-Pro-Stop:
5'-AUG Methionine (Met), being at the same time an initiating codon.AGU Serine (Ser).CCU Proline (Pro).UGA-3' is a stop codon.Stop codons do not code for amino acids, but their presence in a codon sequence marks the completion of peptide or protein synthesis.
Which best defines matter?
A. Anything that takes up space and has mass
O B. Anything in the atmosphere
C. All the living things on the planet
O D. All solid objects that can be seen
Answer:
A. Anything that takes up space and has mass
Explanation:
Matter is often described as something that takes up space and has mass. Matter can be in the form of a solid, liquid, or gas, which eliminates all of the answer choices besides A.
Hope this helps :)
Is glucose smaller or bigger than iodine?
Bart believes that mice exposed to radio waves will become extra strong (maybe he's been reading too much
Radioactive Man). He decides to perform this experiment by placing 10 mice near a radio for 5 hours. He compared
these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy piece of wood that
blocked the mouse food. He found that 8 out of 10 of the radio waved mice were able to push the wood away. 7 out
of 10 of the other mice were able to do the same.
Answer:
if 8/10 radio wave mice were able to move the piece of wood, and 7/10 of non-radio wave mice were also able to move the piece of wood, then the radio waves have no effect upon the result.
Explanation:
what is osmosis biology
Answer:
osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration
Answer:
osmosis is the movement of water molecules through a semi permeable membrane from a region of higher concentration to lower concentration
Explanation:
just did the question
Which non renewable resource do you think should be decreased? How can it be done?
Which Renewable resource could be increased? How do you think it should be done?
Giving 40 points (please only answer the questions)
Answer: Wait so you dont need these anymore?
Explanation:
who is popular know by the name `Kavindra´ in Neali literaturewho is no by the
Answer:
i dont think the question is finished.
Explanation:
Fill in the chemical equation using the following list of chemicals: H20, O2, CO2,
C6H1206. (2pts)
6
+ 6
(light energy)
6
Hi there!
Photosynthesis involves carbon dioxide (CO2) and water (H2O) as the reactants with glucose (C6H12O6) and oxygen (O2) as the products. We can write a basic chemical equation:
[tex]CO_{2} + H_{2} O - (light) -> C_{6} H_{12} O_{6} + O_{2}[/tex]
The equation has to be balanced, so the final equation for photosynthesis would be:
[tex]6CO_{2} + 6H_{2} O - (light) -> C_{6} H_{12} O_{6} + 6O_{2}[/tex]
The chemicals in correct order are:
[tex]CO_{2}\\H_{2}O\\ C_{6}H_{12}O_{6}\\ O_{2}[/tex]
Vesicles are the tiny transport packages made by- A. Golgi body
B. Ribosomes
C. Chlorplasts
D. nucleolus
Answer:
a
Explanation:
Which of the following is not a product of cellular respiration?
a. CO2
b. Energy
c. C6H1206
d. H20
Answer:
The only molecule in the group that is not a product of cellular respiration is C₆H₁₂O₆ (option c).
Explanation:
C₆H₁₂O₆ is the glucose molecule, which is an energetic substrate and not a product of cellular respiration.
Cellular respiration is the process by which, through the oxidation of glucose and in the presence of oxygen, energy is obtained in the form of ATP. The reaction that summarizes this process is:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + Energy (ATP)↑
As can be seen in the diagram, while glucose and oxygen are substrates of the reaction, the resulting products are CO₂, H₂O and energy.
an anucleated cell located within blood is called
Answer:
Red Blood Cell
Explanation:
Red Blood Cells (RBCs) are round and without a nucleus. It has no nucleus so that it has more space to accommodate oxygen molecules and it helps in diffusion due to the biconcave shape, and that biconcave shape is present because there is no nucleus present in the RBC.
I hope this helps you!!
Semi-conservative, daughter molecules have 1 old and 1 new strands, phosphate, 5 carbon sugar, nucleic acid
The pyrimidine bases are?
Answer:
Thymine and Cytosine
Explanation:
Genes are stored within DNA or deoxyribonucleic acids- these are long-chain, macromolecules that form a double helix. They are made up of nucleotides, special monomers made up of nucleotides comprise, 5-Carbon deoxyribose sugar, a nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.
The nitrogenous bases pair up via hydrogen bonding. The pyrimidine bases include cytosine and thymine. In base-pair formation, Adenine forms double bonds with thymine, and cytosine bonds with guanine. These pyrimidines are 6 carbon ringed molecules that contain a double bond.
Production of oxygen during photosynthesis (needs to be correct)
Answer:
Occurs during the light-dependent reactions
Explanation:
When a therapist uses techniques from various types of therapy, the person is said to be using
biomedical therapy.
an eclectic approach.
unconditional positive regard.
psychoanalysis.
Answer:
An eclectic approach
Explanation:
An eclectic approach is an approach that combines multiple different approaches. In psychotherapy, an eclectic approach can be described as one that relies on multiple theoretical orientations and techniques. This allows the therapist to be flexible and use methods that best suit their client's individual needs.
An eclectic approach combines concepts from different techniques, generally using one of them as a frame of reference.
An eclectic approach consists of using techniques of different orientations.
A common criterion in technical eclecticism is the level of efficacy demonstrated empirically.In this case, we seek to find the most appropriate treatments for each situation, according to scientific research.Therefore, we can conclude that an eclectic approach refers to a therapeutic approach that consists of using a variety of techniques and procedures regardless of theory.
Learn more here: brainly.com/question/14048177
Select three types of land associated with the largest pore size of soil.
peat
swamp
beach
plains
clay
desert
Answer:
I believe the answers are beach, desert, and clay.
Explanation:
Sand is the largest mineral particle and it has more pore space between its particles.
its beach desert and clay i got it right
What happens to the total blood flow during heavy exercise compared to at rest?
2 of 8
Which of the following processes adds nutrients to the ocean?
12
A
Gases dissolving from the atmosphere intot he ocean
B
Surface runoff
С
Upwelling from nutrient-rich deeper waters
D
All of the above
Answer:
C
Explanation:
I had this question for a test and I got it right
What is the theme for Marigolds. Show evidence drone the story.
Answer:
The main theme or message in the story "Marigolds" is the importance of empathy and compassion. In the story, Lizabeth is reflecting on a crossroads in her life, an incident that marked the change from child to woman.
Explanation:
A type of cell division in which the resulting cells have half the
chromosome number of the parent is called...
Proteins whose conformations change when they are bound to an effector molecule are called
A. activator proteins.
B. regulatory proteins.
C. enzymes.
D. allosteric proteins
E. Inhibitory proteins
Answer:
Inhibitory proteins
Explanation:
Allosteric site = a binding site on the protein other than the active site
Allosteric effector molecules don't resemble the structure of the substrate. So, they cannot bind to the active site. Instead, they bind to an allosteric site and alter the conformation of the protein such that the activity of the protein is affected.
Allosteric effectors can be activators or inhibitors, i.e. the conformational change in the structure can activate or repress the protein function.
Allosteric proteins can also be regulatory proteins (Activators or inhibitors) or enzymes.
the girl was observing a slide of muscle under microscope identified the muscle of striated on the basis of
Answer:
I think ur and is C. and sorry, I got late
lii
06.06 Balancing the Forces
Science Grade 5 v17 (GS)- Steinmetz / Module 06: Force and Motion
6. (06.06 MC)
Observe the bike rider in motion. Identify the image that shows how the forces need to change so that he is no longer
In motion
Answer:
c
Explanation:
i think
Answer: its D
Explanation:
What is the representative organism of annelids?
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
Rank: Phylum
Organism classification: Leech
Displayed higher classification: Animal
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
i did tis assigment.
Alvin is propelled by ____ hydraulic thrusters and features an electrical system powered by lead-acid batteries. *
Answer:
Alvin is propelled by _gas or diesel___ hydraulic thrusters and features an electrical system powered by lead-acid batteries.
Explanation:
Technically, this implies that Alvin is working on motor-assist mode, using a hybrid engine. Alvin is, therefore, propelled by an internal combustion engine (given the presence of hydraulic thrusters) in addition to an electric motor, which uses energy stored in (lead-acid) batteries. Alvin must be a robot.
Can someone please tell me if the arrows in this food web are pointing to the right animal :)
Answer:
Everything seems correct except the barracuda dosen't have any prey. I don't have access to the mentioned marine biologist's research journal essay, so i don't know about anything else.
Explanation:
Human cells have 46 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere. Once the chromosome has split, each chromatid is called a daughter chromosome. At the end of cytokinesis how many daughter chromosomes will be found in each cell
Whats the answer? I need help
Answer:
Its 26 I'd assume sorry if I'm wrong it was kind of hard to read the question.