Answer:
B or C??
Explanation:
It's not D because organism is the largest. It's not A because an organ is larger than a tissue. A Tissue is a group of cells.
B and C are the exact same
how can you differentiate between littoral zone and limnetic zone in a pond ecosystem ?
Explanation:
The limnetic zone is the open and well-lit area of a freestanding body of freshwater, such as a lake or pond. Not included in this area is the littoral zone, which is the shallow, near-shore area of the water body.
If mitosis divides a cell with 100 chromosomes, how many chromosomes will the new cell have?
Highly toxic chemicals that persist in the environment have been associated with disruption of the: immune system. reproductive system. nervous system. All of these are correct.
Answer:
All of these are correct.
Explanation:
Immune system, reproductive system and nervous system are adversely affected by the contact of highly toxic chemicals because toxic chemicals have materials which is harmful for the cells that the cause of cell death or damaged the structure of the cell due to which the cell can't perform its function efficiently. All the system i.e. Immune system, reproductive system and nervous system are made up of cells so if the cells are damaged by these toxic chemicals the body systems are also negatively affected.
What kind of cells does mitosis make?
Choose THREE.
Answer:
Mitosis is used to produce daughter cells that are genetically identical to the parent cells. The cell copies - or 'replicates' - its chromosomes, and then splits the copied chromosomes equally to make sure that each daughter cell has a full set.
Explanation:
Can you please with this question?
Answer:
deletion
Explanation:
AAC GGC AAA CGA TTG ---> ACG GGC AA? CGA TTG
The bolded portion represents where the mutation occured.
As you can see the nitrogenous base adenine was completely removed from the codon
When a nitrogenous base gets removed it is known as a deletion mutation
Can someone help me please I don’t know how to do this and I have to hand it in ASAP!! :(
What is the importance of organizing organism?
Answer:
It is necessary to classify organisms because It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences
Explain how you can use a pattern of clapping sounds to transfer information. PLS HELPPPPPPPP.
Answer:
You can use Morse code to transfer information
The scientific method can best be described as a plan or set of _____.
A. hypotheses
B. experiments
C. theories
D. procedures
Answer:
D. Procedures (Gradpiont)
Explanation:
Match each of the following terms with its definition. 1. Mitosisa) The dense, active protoplasm found in the center of the cell 2. Nucleusb) The watery fluid that surrounds the nucleus of the cell and is needed for growth, reproduction, and self-repair 3. Cytoplasm c) The process of cell reproduction of human tissues that occurs when the cell divides into two identical cells 4. Cell membrane d) The part of the cell that encloses the protoplasm and permits soluble substances to enter and leave the cell
Answer:
1. Mitosis c) The process of cell reproduction of human tissues that occurs when the cell divides into two identical cells
2. Nucleus a) The dense, active protoplasm found in the center of the cell
3. Cytoplasm b) The watery fluid that surrounds the nucleus of the cell and is needed for growth, reproduction, and self-repair
4. Cell membrane d) The part of the cell that encloses the protoplasm and permits soluble substances to enter and leave the cell
Explanation:
Mitosis is the process that undergoes a cell to give two new identical cells. This is how our body makes or renovates tissues.The nucleus is the part of the cell that contains the DNA, which is necessary to synthesize the proteins that the cell and our body need. It is in the center of the cell and has a nuclear membrane that separates it from the rest of the organelles.The cytoplasm is a solution that surrounds the nucleus, and it contains the rest of the organelles that the cell needs for its functions. The cell membrane is the structure that encloses all the cytoplasm and the nucleus. It is made of phospholipids, proteins, and cholesterol, which allows the passage of certain substances.A population is separated into two groups by a geographical barrier. Over time, enough differences develop between the two groups that they do not interbreed when reunited. Which of the following terms best describes the process that has occurred?
extinction
hybridization
speciation
Please help, this determines how much work I do, allele chart.
Facilitated diffusion requires
A. a protein pump, energy, and a concentration gradient.
B. no energy, net osmotic movement, and a protein pump.
C. a concentration gradient, a protein channel, and no energy.
Answer:
A.Explanation:
TutorialDiffusionDiffusion means that the net movement of particles (molecules) is from an area of high concentration to low concentration.Graph of the simple and facilitated diffusion taking into account the rate of uptake and the concentrationIf the particles can move through the lipid bilayer by simple diffusion, then there is no limit to the number that can fit through the membrane. The rate of diffusion increases linearly as we add more particles to one side of the membrane.If the particles can only pass through protein channels, then the rate of diffusion is determined by the number of channels as well as the number of particles.Once the channels operate at their maximal rate, a further increase in particle numbers no longer increases the apparent rate of diffusion. At this limited rate we describe the protein channel as being saturated.The cartoon illustrates several points about facilitated diffusion. The particles are more concentrated on one side of the membrane, and yet they can move in both directions. However, the net movement is from high particle concentration to low. If the number of particles gets so high on one side of the membrane that they interfere with diffusion through the protein channel, then we observe a limit to the rate of diffusion at the point of saturation.Illustration of facilitated diffusionanimation used with permission of the Virtual Cell Web PageProblem 7 | Answer | Problem 8The Biology Project > Cell Biology > Cell Membranes > Problem SetThe Biology ProjectDepartment of Biochemistry and Molecular BiophysicsUniversity of ArizonaMay 2002Revised: August 2004Contact the Development TeamSimple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concertion gradient.
Answer:
C. a concentration gradient, a protein channel, and no energy.
Explanation:
Facilitated diffusion requires a concentration gradient, a protein channel, and no energy.
The selective serotonin uptake inhibitors, like the antidepressants Prozac, Zoloft, or Paxil, result in increased levels of serotonin at synapses, which may _____ initially but then lead to _____.
Answer:
increase anxiety; decreased vulnerability to overreact to stress
Explanation:
Serotonin (5-HT) is a natural neurotransmitter that carries signals between nerve cells (neurons) throughout the body. This neurotransmitter (serotonin) is responsible for regulating many biological functions (e.g., mood, digestion, sleep, etc). Moreover, it has been shown that there is an association between low cerebrospinal fluid 5-hydroxyindole-acetic acid (5-HIAA, the principal serotonin metabolite in the brain) levels and the risk of developing depression or destructive behaviors. In addition, serotonin concentration can also be elevated in situations of anxiety and/or stress. Antidepressants such as Prozac, Zoloft and Paxil act as serotonin uptake inhibitors that increase serotonin concentration at the synaptic site. Like other drugs, these antidepressants may lead to increase anxiety and decrease the vulnerability to react to stress by downregulating sensitivity to serotonin released during natural stress situations.
Looking at North America, which of the layers formed most recently? Explain your reasoning.
Urgent, please!!
Answer:
Sedimentary rocks are deposited one on top of another. Therefore, the youngest layers are found at the top, and the oldest layers are found at the bottom of the sequence.
Answer:
G
Explanation:
Because this is the latest layer formed. On the other hand, you can see that A has formed its layer thousands and thousands of years ago.
Hope this helps!
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what is transcribe and translate that DNA strand A G C A T C G C A T C G
the increase to heart rate is a normal homeostatic response and allows for an adjustment of the body's set point during exercise. Identify one other response that your body makes to help maintain homeostasis for a "set point" that can't be adjusted & Describe why it does that. *
Answer:
it increases oxygen levels and decrease carbon dioxide levels
Can any one help plzzzz :(
both have visible nuclei.
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What is an organelle? Give three examples
The chemical and energy of these plants all started with what energy source
Why are protein so fragile
John’s grandparents make wine for special occasions. They add a pinch of yeast to crushed grapes. Over time, this action releases carbon dioxide, and the result is a homemade wine. What chemical process do the grapes undergo?
A.
alcoholic fermentation
B.
cellular respiration
C.
photosynthesis
D.
preservation
E.
ripening
Answer:
A.
alcoholic fermentation
I hope this helps
what is a waning moon
Answer:
A period where a new moon will go to a full moon
Explanation:
Which is a part of interphase
Answer:
B
Explanation:
S phase
How does air pollution affect water pollution?
Select the correct answer. Which form of birth control could people use without altering hormonal systems or blocking sperm from fertilizing an egg
Answer:
Fertility awareness
Explanation:
Fertility awareness involves the woman being observant about different pointers during her menstrual cycle. This method is not the safest.
Studies have shown that a woman is less likely to get pregnant few days after completing her menstruation but very fertile around 12-14 days before her next period comes up.
This form of birth control doesn’t involve altering hormonal systems or blocking sperm from fertilizing an egg
what type of gas is released in landfills
will mark brainlist, help please!
Answer:
C
Explanation:
Explain how the human immune system defends your body against pathogens.
Search for this question
Link:
WWW.SCIENCESOLVING.COM
Answer:
When antibodies attach to an antigen (think a lock–key configuration), it signals other parts of the immune system to attack and destroy the invaders. This is how the human body develops immunity (acquired) to a particular disease. But some germs and viruses are very adaptive.
Explanation:
.
Please choose the answer that best completes the blanks of this sentence in the correct order. The ______ plate method involves spreading an inoculum onto the surface of a plate in a pattern that results in isolated colonies in some areas of the plate after incubation, whereas the ______ plate method involves diluting an inoculum into several melted agar tubes and then adding their contents into plates for solidification and incubation.
Answer:
streak, pour
Explanation:
The streak method is the most popular technique used to isolate specific bacteria from a sample containing different microorganisms. In this technique, a sterile loop is employed to obtain an uncontaminated microbial culture. Colony picking refers to the process where colonies of pure bacteria are selected in order to duplicate them by transferring them into new agar plates. Moreover, the pour plate method is the most popular technique employed to count the number of colony-forming bacteria (i.e., bacteria/ml) in a specimen. The pour plate method consists of dropping the sample on a sterile plate and subsequently molten-cooled agar is then poured into the plate and mixed well with the inoculum.
Answer:
streak, pour
Explanation:
The streak plate method involves spreading an inoculum onto the surface of a plate in a pattern that results in isolated colonies in some areas of the plate after incubation, whereas the pour plate method involves diluting an inoculum into several melted agar tubes and then adding their contents into plates for solidification and incubation.