Which of the following is true of the composition of all materials?
A.
All materials are made up of large parts that can only be seen by the human eye.
B.
All materials are made up of smaller parts that cannot be seen without magnification.
C.
All materials are made up of living cells.
D.
All materials are made up of only one part.
Answer:
Option B.
Explanation:
All materials are made up of smaller parts that cannot be seen without magnification.
Reefs grow best in _______. a. deep water b. low salinity c. temperatures below 25°C d. shallow water
Answer:
D
Explanation:
Reefs
1 salty water
2 maximum sun
3 73° F or higher
PROJECT: RESEARCH
OBJECTIVES
Write a report on the origin of life.
Take a subject of origins or a question you have and write a minimum of 500 words as a research project. Be sure to list all references and resources as part of your bibliography. Other information can be found at a library or other reference source.
To write a report on the origin of life first identify the different theories and then use reliable sources to explain these theories.
What are the theories of the origin of life?Life emerged as a result of chemical reactions that created complex structures.Life first emerged in clay that contained different chemical elements and simple substances.Organic compounds essential to life existed on ice that later melted.Life began on space.How to write a report?Look for credible articles, research reports, etc. that support and explain each of the theories.Using the information from the sources and your own words explain each of the theories, the evidence that proves it, and its flaws.Learn more about report in: https://brainly.com/question/14969693
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Describe the 6 phases of developing a vaccine
Answer:
Exploratory stage
Pre-clinical stage
Clinical development
Regulatory review and approval
Manufacturing
Quality control
Explanation:
Internet
Explanation:
there are many stages to a vaccine
many come from ... developing symptoms
in which some case can come from
some quality control, pre-clinical control or even exploratory stage
Most professional sportsmen and sportswomen do not smoke.
Explain why:
Someone help me out please
brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. If two brown rabbits, with the genotypes seen in the Punnett square above, have baby rabbits, what is the probability that the baby rabbits will also be brown?
a) 25%
b)50%
c)75%
d)100%
Explanation:
BB: brown
Bb: brown
bb: white
Since you didn't give the variables, here is how you make a punnet square:
Make a box with four boxes inside.
_______________
| | |
| | |
_______________
| | |
| | |
_______________
Put the variables on each side:
Example:
____B_____b____
B| | |
| | |
_______________
b| | |
| | |
_______________
then fill in :
____B_____b____
B| BB | Bb |
| | |
_______________
b| | |
| Bb | bb |
_______________
Pls help me!!! I need help
Explanation:
option a
option b
option c
Please help!!!! 20 points
Answer:
Producers: Leaves and the other plant thing (i don't know the name of it)
First-level consumers: Squirrel, grasshopper, rabbit, rat
Second-level consumers: Frog, rat
Third-level consumers: Fox, owl, snake
Herbivores: Grasshopper, rabbit, squirrel
Carnivores: Frog, fox, snake, owl
Omnivores: Rat
Given the following sequence of DNA, write the correct sequence of complementary DNA bases.
TACCGATAA
Given the following sequence of DNA, write the correct sequence of complementary mRNA.
ACCGTACTG
Given the following sequence of DNA write the correct sequence of amino acids.
ATAGGCGTA
Answer:
1. ATGGCTATT
2. UGGCAUGAC
3. mRNA: UAU-CCG-CAU, amino acids: tyrosine(tyr)-proline(pro)-histidine(his)
Explanation:
For DNA, the complementary bases are T=A and C=G. This means every time you see one of these letters, the corresponding letter goes with it. For mRNA, the bases are T=A, A=U, C=G. It is the same except now, there should be no "T" in the mRNA sequence. With amino acids, you would first code for the mRNA sequence, every three letters being the amino acid sequence. To find the amino acid, you would look at a codon chart unless your teacher wants you to memorize them. The first three letters of the amino acid are the abbreviation.
Temperature
20. When cooling food outside of the refrigerator using the ice bath method, the
temperature of the food must reach ___ within 2 hours and within a total of 6
hours?
O A. 90°F and 61°F
OB. 100 and 710F
O C. 70°F and 41°F
O D. 80°F and 51°F
Answer:
When cooling food outside of the refrigerator, the temperature of the food must reach 70º F within 2 hours and 41º F or below within a total of 6 hours.
Explanation:
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Answer: C that protists are single-celled organisms
Explanation:
I hope this helped!
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How can someone see in a dim room
A lysosome is the organelle inside of a cell that is responsible
for digestion. The lysosome performs the same basic function
as which system in animals?
Digestive System
Circulatory System
Nervous System
Respiratory System
how do water and land interact?
Answer:
water flows through the landscape. the condition of the land surface affects the flow and quality of water .
You have isolated a bacterium from a contaminated river but you are unable to culture it in the laboratory. Which method could you use to identify the organism
Answer:
DNA sequencing
Explanation:
DNA sequencing is the method which can be used in order to identify the bacterium that was isolated from the contaminated river. DNA sequencing is the process in which the sequence of nucleotides is determined that is present within a DNA molecule. For identifying the bacterium, the sample of bacteria is collected. After sample collection is completed, genomic DNA is extracted from the bacteria and DNA sequencing will be done of that bacteria.
Which of the following correctly describes a nucleus?
All cells have a nucleus
The nucleus is where mitosis occurs
The nucleus gives the cell energy
The nucleus is where plants make their own food
The nucleus is where mitosis occurs.
Answer: B. The nucleus is where mitosis occurs
Explanation: B. The nucleus is where mitosis occurs
What are the "energy factories" within a plant cell?
Which of the following is NOT an example of homeostasis?
red blood cells transferring carbon dioxide to the lungs to be exhaled
the digestive system breaking food into smaller pieces that can enter the cells of the body
a virus entering a cell and damaging the organelles
mitosis
Answer:
mitosis
Explanation:
In addition to observable traits, scientists use to classify living things
Answer: 1 Phylum.
2 Order.
3 Class.
4 Family.
5 Genus.
6 Species.
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Explanation:
The students decide to model how the motion of two plates occurs. Which statement best describes the ability of the model to predictyplate movement? A The motion of the plates cannot be modeled on a scale that is much smaller than the plates themselves. B The motion of the plates cannot be modeled by simplifying the factors that contribute to plate movement. C The motion of the plates can be modeled by including only the main factors that contribute to plate movement. D The motion of the plates can be modeled only by including every factor that contributes to plate movement.
Explanation:
In my view, all factors are equally responsible for this.
Which wavelength is reflected off plants stems and leaves
A lever used to lift a heavy box has an input arm of 4 meters and an output arm of 0.8 meters. What is the MA of the lever?
Answer:
Mechanical advantage = 5
Explanation:
Given the following data;
Length of input arm = 4 meters.
Length of output arm = 0.8 meters.
To find the mechanical advantage;
[tex] Mechanical \; advantage = \frac {Length \; of \; 1nput \; arm}{Length \; of \; 0utput \; arm} [/tex]
Substituting into the formula, we have;
[tex] Mechanical \; advantage = \frac {4}{0.8} [/tex]
Mechanical advantage = 5
Now that we have studied the various types of vaccines, consider the current resurgence of diseases like the measles. How can we convince the general public and possibly even ourselves, that immunization is a necessary preventative measure for diseases that have serious complications? Is there a different schedule that we should consider? Are some forms of vaccines safer than others? Should we spread out the inoculation schedule to prevent confusion of a young person?
Answer:
Immunization is one of the most effective processes of preventing or treating dangerous disease. It should be told and advertise to the general public about the facts and importance of vaccination. Doctors and government should explain the reports and ratio that the people who are taking the vaccination in the proper dose and the right amount of vaccination are about 9 timeless likely to have to the other people. It is essential to get a proper dose and proper amount to avoid the development of resistance.
There are several forms of vaccine and they have a different schedule from each other. Every vaccine is safe but one needs to know the cycles, dose and amount of the vaccine. Yes, we should spread out the inoculation schedule to prevent confusion of a young person.
DNA strands are antiparallel. What does that mean?
-opposite and parallel
-complete opposites
-mirror image of each other
-parallel of each other
Explanation:
In biochemistry, two biopolymers are antiparallel if they run parallel to each other but with opposite directionality (alignments). An example is the two complementary strands of a DNA double helix, which run in opposite directions alongside each other.
Answer:
opposites and parallel
Explanation:
These structures allow sperm cells to move through the style:
A long, thin tube called the pollen tube develops from the pollen grain once it touches the flower's stigma this pollen tube allows sperm cells of plants to move through the style. So, the answer is Pollen tube.
When a female gametophyte undergoes double fertilization, male gametes or the sperm cells are transported to the female gametophyte via pollen tube, which results in the production of the seed.
Two sperm cells are found in the pollen tube, which grows along the flower's style until it reaches the ovule. After that, the sperm cells go through the pollen tube to fertilize the ovule's egg cell.
Therefore, pollen tube is the structure that allow sperm cells to move through the style.
Learn more about style here;
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The given question is incomplete, the complete question is:
"The structure allow sperm cells of plant to move through the style:"
HELP ME NOW
The molecular attraction of a substance never changes.
True
Or False
Answer:
True
Explanation:
10. What is an entomologist?
Answer:
An entomologist is a person who studies, or is an expert in the branch of zoology. (A branch in zoology concerned with insects.)
Explanation:
What is the term for a number or amount of things?
A. Force
B. Quantity
C. Mass
D. Coordinate
Answer:
B:Quantity
Explanation:
hope this helps
HELP ME PLEASE PLEASE PLEASE 20 POINTS AND BRAINLIEST
Answer:
ITS A(the endiplasmin reticulum)
Explanation:
