State one reason why soil organisms need air
Answer:
Soil organisms need air because to release plants nutrition to soil .
state te type of cell devision of cross section tips of onion root.
What group of archaebacteria is both thermophilic and acidophilic?
Pyrogens
Methanogens
Thermoacidophiles
Halophiles
Answer:
Thermoacidophiles
Which organ system in the human body is responsible for the transportation of nutrients, gases, wastes and blood?
a) cardiovascular system
b) respiratory system
c) excretory system
d) immune system
Answer:
The cardiovascular system delivers oxygen and nutrients to cells and takes away wastes.
I hope this will help you if not then sorry, have a great day :)Where do convection currents occur atmophere
Answer:
Convection takes place in the atmosphere, in the oceans, and in Earth's molten subcrustal asthenosphere.
Explanation:
Approximately how many mutations occur naturally in DNA per 10,000 bases?
A. 2
B. 2000
C. 200
D. 20
Explanation:
Modern methods indicate that the mutation rate is roughly one to two mutation per 10,000 genes per generation.
In human cells, approximately TWO (2) MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).
The mutation rate (u) refers to the occurrence of new mutations in a given nucleotide sequence over time.In human cells, the mutation rate is approximately 10⁻⁴ per generation.Therefore, in a DNA sequence that has 10,000 base pairs of length, this value is equal to 2 mutations per generation (u = 2 / 10,000 = 10⁻⁴).In conclusion, approximately 2 MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).
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Why do doctors have to check what blood type a person has before receiving a
transfusion?
0
A. Different blood types have different antibodies that will be attacked by someone with
antigens against that blood type.
B. Different blood types have different antigens that will be attacked by someone with
antibodies against that blood type.
C. Your blood type doesn't matter as long as you get the correct amount of blood in a
transfusion.
O
D. They need to have the same blood type because their DNA must be similar enough to
blend or will cause side-effects and possibly be rejected.
Answer:
A. Different blood types have different antibodies that will be attacked by someone with
antigens against that blood type.
Produces proteins drop down menus
Explanation:
Ok, then what do you need explanation for that ??
All enzymes which catalyze the chemical reactions of a cell are
a. carbohydrates b. lipids c. long-chain fatty acids d. proteins e. ribonucleic acids no another by differences in
Answer:
I think the answer will be protein.
Answer:
the answer is carbohydrates
We have all heard about earthquakes or the cyclones that attack the coastal regions. Think of as many different ways as possible in which people's health would be affected by such a disaster if it took place in our neighbourhood. (a) How many of these health -related events would occur long after the actual disaster, but would still be because of the disaster? (b) How can it affect the life of people if in case of a pandemic?
Answer:
The disease spread to the neighbourhood.
Explanation:
If the disaster such as earthquake and pandemic etc occurs in the neighbourhood so it also affected the health of the people of that region as well as the people that lives in the neighbourhood. In the case of pandemic, the disease spread to the neighboring area and affect the health of people while on the other hand, in earthquake the people of neighbourhood is also affected if the intensity of earthquake is higher.
Look at the branching tree diagram below.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.
Which group of organisms evolved after dogs?
Only cats
Only marsupials
Both cats and marsupials
Both amphibians and reptiles
Answer:
both cats and marsupials
Answer: Both Amphibians and Reptiles
Explanation: I took the test and got it, so.....
which of the following solutions has the hghers h ion concentration
what is the average lifespan of a sperm cell
[tex]Hello[/tex] [tex]There![/tex]
The answer is...
5 days at least.
Good luck!
[tex]AnimeVines[/tex]
Explanation:
the answer is up to 5 days
Carbohydrates info
A. AKA:
B. Composed of:
C. Monomer:
D. Polymer:
E. Functions:
Which type of plate boundary would be most likely to lead to above-ground volcanic activity?
A . Subduction
B .divergent
C.collisional
D . Transform
Answer:
A.Subduction
Explanation:
In a subduction zone, one plate slides beneath another. This leads to friction that can melt the crust and result in volcanic activity
The human heart weighs how many pounds
After careful consideration your answer is...
Just about 1 pound
*Hope I helped*
~Alanna~
1 lb (pound)
Explanation:
it is the answer.
What are the physical characteristics that all specimens have in common
The physical characteristics that all specimens have in common can be presence of cells, as there is no specimen given, let's take animals. A dichotomous key can be used to find the similarity.
What is a specimen?A specimen can be anything that is displayed regarding the subject. In labs the specimens can be chemicals, animals, plants, any objects, etc.
Specimens are displayed to learn about them, to see the actual version of that animal that can not be seen easily.
Thus, Because no specimen is provided, let's take animals as an example, the presence of cells is a trait that all specimens share. To find the similarity, a dichotomous key might be utilized.
Learn more about specimens
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can you suggest me some biology experimental project work topics?
Answers:
1. General
2. Reproduction
3. Health
4. Genetic Engineering
5. Technical Experiments on Humans
6. Relationships and Media
7. War
8. Information and Communication Tech
9. Computer Science and Robotics
Science, Geology, Class 8
1. choose the correct answer ( CTCA )
a. what makes the soil fertile?
i. rock particles
ii. humus
iii. sand particles
iv. silt particles
Answer:
Humus
Explanation:
Also known as the uppermost layer of soil, that's for making soil more fertile due to its organic content.
Is a ping pong ball a nonliving or living thing and why
Answer:
A ping pong ball is nonliving because it does not have a brain or living cells. It is plastic.
which type of scientific inquiry requires variables and control group
Answer:The correct answer will be options-a scientific question, a procedure and a conclusion
Explanation:
The scientific investigation is performed to answer, understand and explain the natural events or phenomenon. The scientific investigation is performed through one of the types of scientific investigation that is descriptive, comparative, and experimental.
The common components of all types of investigation are :
1. Scientific question: the question is asked on the basis of observation made which could be answered.
2. Procedure: the sequential steps are followed to answer and test the scientific question.
3. Conclusion: the main aim of the investigation is the conclusion or inference to the scientific question which is an explanation of the question.
Explanation:
Which of the following is the only one that could cause a theory to change over time?
Group of answer choices
The discovery of new evidence
Exciting new—but untested--hypotheses
A series of new laws passed by the government
A change in public opinion
Answer:
may be
the discovery of new evidence
Explanation:
Accepted theories may be modified or overturned as new evidence and perspective emerges. Scientists are likely to accept a new or modified theory if it explains everything the old theory did and more. The process of theory change may take time and involve controversy, but eventually the scientific explanation that is more accurate will be accepted.
4. Which is an environmental factor that affects skin color in humans?
A. number of linked genes
B. number of genes inherited
C. amount of food consumed
D. amount of sunlight absorbed
Answer:
Option D
amount of sunlight absorbed
Which is a benefit of binomial nomenclature?
1.Fewer common names
2.Increased understanding and communication
3.Reduced plant-related poisoning
4.Better understanding of genetics of plants
If you have a measurement of 234.005 k, how many significant figures does it have
Answer:
It has 6 sig figs
Explanation:
235.005
Every digit is significant.
Why do plant cells have chloroplasts?
Answer:
The chloroplast has chlorophyll and the chloroplasts also helps with makes photosynthesis happen. It takes the suns energy and turns it into energy for the plant. So it uses solar energy and makes chemical energy.
Explanation:
In almost all criminal cases, eyewitnesses are used in order to build a case for someone’s innocence or guilt. Should eyewitness accounts be the sole evidence used to convict the accused? Explain your view.
Answer:
Explanation:
No never.
There is a famous psychology experiment where people sit in classroom in such a way that the person on either side of you can't hear what you say. This works best with more than 20 people.
The first person composes a sentence that has 3 facts in it. He whispers it to the second person who relays it to the third until the last person is told. The point of the experiment is to show that the last person isn't normally able to correctly repeat the 3 facts. In fact, most often what is given is quite mixed up and incorrect.
That's what's wrong with eye witness accounts. You can be certain of what you saw. You can also get it all mixed up.
A millimeter, a meter, and a kilometer are all measures of distance. What is
another way to classify them?
O A. U.S. customary units
B. Measures of mass
C. Measures of volume
D. Metric units
Answer:
I think the correct answer is D
Need help someone knows the answer
Answer:
d. landfill materials
Explanation:
Question 17 of 25
Why do plants produce more carbon dioxide than oxygen during the night?
O A. Respiration produces oxygen during the day and carbon dioxide at
night.
B. Respiration can happen without sunlight, but photosynthesis
cannot.
O C. Respiration can only occur when there is no available sunlight.
O D. Photosynthesis only produces carbon dioxide during the night.
SUBMIT
Answer:
B
Explanation:
Respiration can happen without sunlight,but photosynthesis cannot.and photosynthesis doesn't take place at night,so less carbon dioxide is used up than it is produced.
I hope this helps
