Answer:
When viruses attack cells, they release genetic material that is coded to multiply, then the cells divide and more viruses are spread, the viruses do not eat.
Explanation:
Robert Hooke was the first person to observe cells. He observed these cells in
(a) a piece of cork.
(b) a slice of honeycomb.
(c) human blood.
(d) plaque from his own teeth.
Robert Hooke was the first person to observe cells. He observed these cells in (a) a piece of cork.
I hope this helps!
Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.
What is cell cycle?
Cell cycle is defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one is G1 phase in which the size of cell increases, S phase synthesis of DNA takes place and the third step is G2 phase in which cell ready to divide.
Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
Therefore, Robert Hooke was the first person to observe cells. He observed these cells in a piece of cork. Thus, option A is correct.
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Carol and Sam were using the microscope in science class. They used a dropper to put some pond water on their microscope slide. This is what they saw. "That is something living," said Sam. "I don't think so," said Carol. What do you think? Explain.
options:
This is not alive. It is not moving or responding.
This sample is made of identical units. It is not alive.
This is a multicellular organism made of cells. It is living.
This may have been alive once, but not now because it is not moving.
Answer:
Sam was actually correct. Pond water usually contains microrganisms like bacteria, viruses, and parasites. This is also why people do not drink pond water without getting rid of the impurities.
Explanation:
fats store energy for
A. Long term.
B. Immediate use
C. muscle tissues only.
What must a student do to obtain a volume of 12.5 milliliters of liquid in the graduated cylinder shown in the diagram below?
A
Add 0.5 mL of liquid.
B.
Add 1.5 mL of liquid.
C
Remove 0.5 mL of liquid.
D
Remove 1.5 mL of liquid.
Answer:
C. Remove 0.5 ml of Liquid
Remove 0.5ml of liquid to obtain a volume of 12.5 milliliters of liquid in graduated cylinder.
This cylinder is used to measure liquids.What is a graduated cylinder?It is also know as measuring cylinder.It is used to measure the volume of a liquid.It is narrow in shape.To know more about Graduated cylinder here
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What is a isotonic solution? How does it affect a red blood cell?
What is a hypertonic solution? How does it affect a red blood cell?
What is a hypotonic solution? How does it affect a red blood cell?
Answer plz!
Answer: If you place an animal or a plant cell in a hypertonic solution, the cell shrinks
Explanation: because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
When plates of the earth crust lift ir tilt, are formed.
When plates of the earth crust lift or tilt, __mountains___ are formed.
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What are biological associations
Answer:
In ecology, a biological interaction is the effect that a pair of organisms living together in a community have on each other. They can be either of the same species (intraspecific interactions), or of different species (interspecific interactions).
Explanation:
pa brainliest
List one other human activity that has led to positive and one other human activity that has led to negative impacts on the oceans?
positive: ecosystem organizations that go out and do things like pick up trash and save animals that were affected by trash.
negative: human waste being thrown into the ocean/humans not recycling to save the ocean
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how to count replicated chromosomes in mitosis
PLEASE HELP
Answer:
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.
Explanation:
Sunlight helps our bodles to produce Vitamin D. In some areas of the United States, there is not enough sunlight during the winter mont
support this process. What is on thing you would recommend to people who live in those areas?
O A. Drink juice that is pasteurized with Vitamin D.
O B. Eat more proteins that bulld Vitamin D.
O C. Drink soymilk that is enriched with Vitamin D.
O D. Eat more carbohydrates that bulld Vitamin D.
Answer:
It would be the first one
Explanation:
A lot of juices are pasteurized with Vitamin D it can be V8, orange juice, grape juice, cranberry juice, etc.
The nucleus signals to the cell that the cell needs to divide. What life function is this an example of?.
Answer:
Reproduction
Explanation:
They are replicating...
Its something like that I wasn't given choices so I tried my best with the given information.
A teacher showed this animal to students on a field trip. Which tool will the students use to record the animal's behavior? A. Graduated cylinder B. Notebook C. Tape measure D. Hand lens
Answer:
note book
Explanation:
nothing else would work
when new species spread out and adapt to all available habitat types, it is known as what?
Answer:
This is called allopatric speciation. There are five types of speciation: allopatric, peripatric, parapatric, and sympatric and artificial.
Uafunrhyry
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A test cross is performed to determine if a specific individual is a carrier. The results generate a 50/50 phenotypic ratio. The test subject was therefore ________.
Answer:
The test subject was therefore, Heterozygous
Which molecule is a product of respiration?
A. carbon dioxide
B. protein
C. glucose
D. oxygen
Answer:
A
Explanation:
respiration is the process by which living organisms(animals) take in oxygen a d give out carbon dioxide. this is not used for plants because plants take in carbon dioxide and give out oxygen
Which of the following is a healthy weight loss strategy?
Answer:
b. Make each of your meals last 20 minutes.
Explanation: is correct answer
Why do parasites not require complex nervous or muscular tissue?
Porque los parásitos no requieren tejido nervioso o muscular complejo?
Answer:
Hey mate.....
Explanation:
This is ur answer.....
Poorly developed nervous and muscular systems – because parasites live inside their hosts, they don't need eyes, ears or a keen sense of smell to detect potential predators nor a brain to facilitate escape. They have little need for a muscular system because they have no place to go.
Hope it helps!
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Why does pollution become more than a local problem?
it can kill
Explanation:
The reason it is a universal problem is because it can kill animals and polute the ocean and then clog up a boat engine
What substances in food provide organisms with energy?
Answer:
A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.
Explanation:
Answer: Carbohydrates
Explanation: Because of the starches and sugars in food, that gives your body‘s main sources of energy.
make a claim on the factors that cause inherited genetic variations within populations.
based on the magnetic field line diagrams, what will happen next with these two sets of magnets?
The answer is A
The magnets in step 1 will repel and the ones in set 2 will attract
Answer: its A
Explanation:
what human activity contributes to air pollution brainly
Answer:
Burning fossil fuels is the most common
Answer: one edge I believe it is construction
Explanation:
the other choices are all positive and would limit air pollution not contribute to it
How many pairs of spinal nerves do you have?
Answer:
b. 31
Explanation: is correct
Which of the following describes a similarity of the cerebellum and cerebrum?
Answer:
b. They both have an outer layer made of grey matter and an inner layer made of white matter.
Explanation: is correct
What is the measure of dissolved solids in the water?
PLEASE HELP ASAPPP!!
1. List three examples of predator-prey relationships you have observed locally:
(a)
(b)
(c)
Answer:
(a) frogs-flies
(b) birds-earthworms
(c) snakes-mouses
Answer: Lion-Zebra, Bear-Salmon And Fox- Rabbit
Meaning: Lion eats zebra bears eats salmon and fox eats rabbits
Explanation: There are literally hundreds of examples of predator-prey relations. A few of them are the lion-zebra, bear-salmon, and fox-rabbit. A plant can also be prey. Bears, for example, feed on berries, a rabbit feeds on lettuce, and a grasshopper feeds on leaves.
Almost end of semester, HELP!!
Specialized structures are expressed with the help of mRNA. What role does mRNA play? (5B)
Assisting with replication by producing glucose
Creating bonds to form large polymers
Providing information from DNA that is used to form proteins
Making energy available for cellular activities
Answer:
The answer is C Providing information from DNA that is used to form proteins
Explanation:
i took the test
The statement that demonstrates the role that mRNA play in protein synthesis is as follows:
It provides information from DNA that is used to form proteins.Thus, the correct option for this question is C.
What is Protein synthesis?Protein synthesis may be defined as a type of biological process through which polypeptide chains are formed from coded combinations of single amino acids inside the cell. The process of protein synthesis terminates with the help of two processes:
Transcription.Translation.The process of transcription involves the copying of a DNA sequence of a gene in order to make an RNA molecule. This RNA molecule is known as mRNA which determines the linkage of DNA from the manufacturing of the proteins. This process is carried out in the nucleus of the cell.
While the process of translation involves the synthesis of proteins using the genetic information carried in messenger RNA (mRNA). This process is carried out in the cytoplasm of the cell.
Therefore, the correct option for this question is C.
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The farm business has decreased for years
due to an increase in disease and pests.
What is one way to increase the production of
crop for the farmers?
A.Plant genetically modified crops.
B.Use water treated with disease control substances to
water the crops.
C.Fertilize the farming land.
D.Increase the use of pesticides to prevent pest.
after death, the cornea absorbs fluid and becomes opaque. in a living person, the cornea is translucent due to _______________.
Given what we know about human anatomy, we can confirm that the cornea of a live human is translucent due to the arrangement of its collagen fibers and the lack of vascularity.
One important factor in the translucent nature of the cornea and lens is its lack of vascularity. This area of the eye has few if any vascular components, which contributes to its lack of pigment.
However, the main component that contributes to the translucent nature of the human cornea is its very specific arrangement of collagen fibers.
The bundled nature of these fibers, together with the water content of the cornea, allow it to remain translucent.
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