1. Animal cells have all of the following except:
Answer:
chloroplasts And Cell Wall
Explanation:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Answer:
I assume this is your question since I have seen this before.
Animal cells have all of the following except ________.
A. mitochondria
B. chloroplasts
C. a nucleus
D. Golgi apparatus
Answer: B
Explanation:
There are no choices to answer your following question, Please edit your question with a picture of answer choices or type it out properly next time. That will be greatly appreciated.
Which of the following is an example of how enzymes are catalyst?
a)Enzymes can alter the free energy change (ΔG) for a chemical reaction.
b)Enzymes increase the free energy of the reactants to make the reaction go faster.
c)Enzymes provide the activation energy for the reactions they facilitate.
d)Enzymes lower the activation energy so that reactants absorb enough energy to reach transition state.
Essential nutrients move through a cell membrane by both passive transport and active transport. Which of the following correctly describes the transport of materials across a cell membrane?
a) Active transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
b) Passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration.
c) Active transport moves nutrients from areas of high concentration to areas of low concentration without the use of chemical energy.
d) Passive transport moves nutrients from areas of low concentration to areas of high concentration without the use of chemical energy.
Answer:
I think it would be d.
Explanation:
Which kind of environmental change would a tornado be?
short-term, because it occurs very quickly
long-term, because it lasts a long time
short-term, because it affects only a small area
long-term, because they have been happening for millions of years
Answer:
short-term, because it happens fast please tell me if its right or wrong i will edit it :D
Explanation:
How are humans immune to infectious diseases after they have already contracted the disease previously? and How do vaccinations work to provide immunity?
Answer:
Explanation:
Immunity to a disease is achieved through the presence of antibodies to that disease in a person's system. Antibodies are proteins produced by the body to neutralize or destroy toxins or disease-carrying organisms. Antibodies are disease-specific. Viruses make us sick by killing cells or disrupting cell function. Our bodies often respond with fever (heat inactivates many viruses), the secretion of a chemical called interferon (which blocks viruses from reproducing), or by marshaling the immune system's antibodies and other cells to target the invader. A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
Which statement is true about viruses?
O They are more complex in structure and function than bacteria
O They are eukaryotic cells
O
They consist of a nucleic acid surrounded by a protein coat
о O
They are usually not pathogenic
Answer:
option C is correct
Explanation:
virus are made up of nucleic acid and surrounded by protein coat
Muscle cells require more protein than others cells. What organelle(s) will they probably have more of, compared to other cells?
Who knows how to do this pls answer it 100% smart pls tell me the correct answer smart people
Answer:her arm is puffy, red, and swollen
Explanation:
How is a spider's webs made?
Explanation:
spider webs produces silk thread to build their webs. The silk is produced in silk glands with the help of the spiders Spinnerets....The threads a spider used to construct its web begin as a liquid with a dry quickly in the air.
Some students were discussing running the mile in PE. The students all agreed that the cardiovascular system was very important but they could not agree on what other system was important.
Which of the following claims and reasoning would be MOST beneficial in their argument? (AKS 2b)
A.
Student 2 said the digestive system was also important because it breaks down waste produced by running, which the cardiovascular system transports to all the cells.
B.
Student 3 said the immune system was also important because it releases sweat from the body while running, which the cardiovascular system will transport away from all the cells.
C.
Student 1 said the respiratory system was also important because it brings oxygen into the body while running, which the cardiovascular system transports to all the cells.
D.
Student 4 said the muscular system was also important because it produces nutrients in the body while running, which the cardiovascular system will transport away from all the cells.
Answer:
C
Explanation:
A DNA strand has the sequence GTTCCAGAG. Which is the complementary strand of RNA? CAAGGTCTC AGGTTCACA CAAGGUCUC TGGAACTCA
Answer:
C. CAAGGUCUC
Explanation:
Since you are giving the complementary strand of RNA, Adenine (A) pairs with Uracil (U), Thymine (T) pairs with Adenine (A), and Cytosine (C) and Guanine (G) pair with each other. Thus, the answer would be CAAGGUCUC.
Does this make sense? Feel free to comment any questions you have! If this answer helped you, please consider leaving me a good rating and/or brainliest!!
The complementary RNA strand of the following DNA sequence: GTTCCAGAG is CAAGGUCUC.
TRANSCRIPTION:
Transcription is the process whereby a mRNA molecule is synthesized from a DNA template. During transcription, the sequence of DNA is used to synthesize the complementary mRNA sequence. Adenine pairs with Uracil (RNA) while Guanine pairs with Cytosine i.e. A-U, G-C. According to this question, a DNA strand has the sequence: GTTCCAGAG, the complementary RNA strand is CAAGGUCUC.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
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What is the chemical equation for the light-independent reactions (Calvin Cycle) of photosynthesis?
Hello! Your answer is shown below :
The chemical formula for the reaction is + + = ( ) + , but there are many individual steps leading to the overall result. This photosynthesis process can be separated into two parts: the light-dependent reactions and the dark reactions.
Hope this helps! And have a great day! :)
Which of the following are grouped together to form chromosomes?
A.Traits
B.Genes
C.Cells
D.All the above
Answer: D) ALL THE ABOVE
HAVE A BLESSED DAY!!!!! :)
True or false Angiosperms are flowering plants will mark brainlest
Answer:
True, angiosperms are plants that have flowers and produce seeds within a fruiting body or carpel. Example: The humble tomato plant starts off with bright yellow or orange flowers that (after pollination) will swell into a plump, red fruit, chock-full of seeds waiting to be planted.
Step 4: Conduct research to support your claim. A) For each part of your claim, conduct research to provide two examples of scientific information that supports it
Answer:
Research for species is done by microscopic view. The micro organism like fungi and bacteria are difficult to be observed by naked eye.
Explanation:
The research process includes the detailed view of the properties of micro organism. Their way of living separates them from each other. Parasites used to live in the body of their victim.
Does mitosis or meiosis occur more frequently in your body? Explain your answer
Answer:
Mitosis
Explanation:
Meiosis is the splitting of sex cells which happens during reproduction. Mitosis is the splitting of body cells in order to make more body cells. Mitosis is how your body grows, therefore it occurs more frequently because the body is not constantly reproducing.
In the human body, mitosis occurs more frequently than meiosis. Mitosis is a type of cell division that happens in somatic cells, which are non-reproductive cells.
It is responsible for growth, repair, and maintenance of tissues in the body. On the other hand, meiosis occurs only in reproductive cells, such as sperm and egg cells, and is involved in the formation of gametes for sexual reproduction.
Here is a step-by-step explanation:
1. Mitosis: Mitosis is a process where a single cell divides into two identical daughter cells. It consists of several stages: interphase, prophase, metaphase, anaphase, and telophase. During interphase, the cell grows, replicates its DNA, and prepares for division.
Then, in prophase, the DNA condenses into chromosomes, and the nuclear membrane breaks down. In metaphase, the chromosomes align in the middle of the cell. Next, in anaphase, the chromosomes separate and move to opposite ends of the cell. Finally, in telophase, two nuclei form, and the cell divides into two daughter cells.
2. Meiosis: Meiosis is a specialized type of cell division that produces gametes with half the number of chromosomes as the parent cell. It involves two rounds of division, resulting in the formation of four haploid cells. Meiosis consists of two main stages: meiosis I and meiosis II.
In meiosis I, the homologous chromosomes pair up, exchange genetic material in a process called crossing over, and then separate, reducing the chromosome number by half. Meiosis II is similar to mitosis, as the sister chromatids separate and move to opposite ends of the cell. The end result is the formation of four genetically unique haploid cells.
Although both mitosis and meiosis are essential for different purposes, mitosis occurs more frequently in the body because it is involved in the growth, repair, and maintenance of tissues.
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A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. Which gas is the plant producing..
a
oxygen
b
nitrogen
c
carbon dioxide
d
hydrogen
Answer:
A
Explanation: plants give off oxygen not carbon dioxide
Describe the design solution engineers and scientists developed to prevent contamination of Cleve
Answer:
Water_Work_Conservation.MAJELA.Answers.docx - 1 Describe...
Explanation:
the answer is in this link
why does a deletion mutation usually cause more defects during protein synthesis than a point mutation?
Answer:
Deletion mutations can affect the entire base sequence.
Explanation:
Answer:
Deletion mutation may cause a shift of base sequence, causing the reading frames for base sequence to change during translation. This may affect the type of amino acid it the original base sequence codes for, resulting in a change in amino acid sequence in the polypeptide translated. Therefore, affecting the whole protein itself. There may be wrong amino acids that prevents vital bonds like disulfide bridges to form, resulting in a huge change in 3 dimensional conformation of the protein. A point mutation may result in a gene sequence being edited. However, only the target sequence is being mutated. The rest of the gene sequences are left untouched. Therefore, the impact is localised. This ensures that even though a few wrong amino acids may be in the polyleptide, most of the bonds that are crucial for the correct 3 dimensional conformation is still present, therefore, lesser defects will be resulted due to point mutation as compared to deletion mutation.
Explanation:
Hope this helps, Have a Great Day!!
What is the structure in the blood vessels where gases are exchanged? (for a Biology test)
Answer:
The capillaries
Explanation:
This is where the exchange of gases , nutrients and waste occurs between the tissues and the blood due to the small pores and spaces are between the cells
What is the main body system that regulates blood glucose levels? How does the human body return blood glucose levels to normal?
Answer:When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal.
Explanation:
glucose molecules moving through protein channels is an example of what type of transport
A- Facilitated diffusion
B- Active transport
C- Passive transport
D- Osomosis
Answer:
B-active transport
Hope it will help
Thank you
Fossils provide a record of animals that are ___ or no longer living
A. Petrified
B. Extinct
C. Modern
Answer:
B. Extinct
Explanation:
Exctinct means no longer exists.
In this case, fossils provide the proof that exctinct animals species used to exist but no longer do. For example, dinosaurs are the prime example of this.
How do plants synthesize high energy carbohydrates?
the plants have utilized the energy of sunlight to produce glucose (and ultimately other carbohydrates, proteins and fats) and oxygen from water and carbon dioxide.
(hope this helps ^^)
what are the proteins used in active transprot called
The presence or absence of freckles is determined by one gene. The allele for freckles (F) is dominant and the allele for the absence of freckles (f) is recessive. A couple has several children. All of the children have freckles because their parents' genotypes can only produce children with freckles. Which of these are most likely the genotypes of the two parents?
Group of answer choices
A: ff and ff
B: Ff and ff
C: FF and ff
D: Ff and Ff
What type of anaerobic respiration do humans go through?
Answer:
lactic acid fermentation.
Explanation:
Anaerobic respiration occurs when the amount of oxygen available is too low to support the process of aerobic respiration. There are two main types of anaerobic respiration, alcoholic fermentation and lactic acid fermentation.
Answer:
The answer for this question is lactic acid fermentation.
Explanation:
When we exercise, we have a lot of lactic acid already built in the muscles. This lactic acid needs to be oxidized into carbon dioxide and water. This is the reason why we start to breathe heavily after a workout session, because since we have a built up of lactic acid, the lactic acid now needs oxygen to be broken down.
Select ALL roles that oceans can have.
Group of answer choices
land salination
heat absorption
heat distribution
land buoyancy
For all the people who dont understand: YOU CAN PICK ANYTHING THATS TRUE AND DONT ADD ANY STUPID 5TH OPTION OK?
Answer:
land salinization
Explanation:
land salinization- forms by water, soil, and salt
heat absorption - heat
heat distribution- heat
land buoyancy- venous return
Hope this helps... sooooo sorry if I got it wrong, I'm only trying to help. Good luck :)
Which of the following is a way group behavior can help a human community survive?
Will mark brainliest!
Please help!
Look at the photo above :)
Please put them in order
In this order, the correct order of mitosis and cytokinesis is the 2nd, 1st, 4th, 3rd, and 5th, where the cell gets divided into two daughter cells from a single parent cell.
What is the order of the mitosIs?Mitosis is the process by which cells divide into five stages: prophase, metaphase, anaphase, telophase, and cytokinesis and each stage is distinct because it serves a specific function. The first phase is prophase, in which the chromatids are condensed, followed by metaphase, in which the chromosomes are present in the metaphasic plate, and finally anaphase, in which the individual chromatids are separated as shown in the diagram, before telophase and cytokinesis.
Hence, in this order, the correct order of mitosis and cytokinesis is the 2nd, 1st, 4th, 3rd, and 5th, where the cell gets divided into two daughter cells from a single parent cell.
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