Which of these was not characteristic of the first cells on earth
Answer:
Can you elaborate and I will be happy to get back to you with a response after!
Explanation:
20. Scientists have discovered that there has been a reduction in the butterfly population in an ecosystem. After much
research, they have identified that the carrying capacity for butterflies has been decreased. If the scientists want to increase
the butterfly population, which action should they recommend?
A. removing primary producers
B. spraying of insecticides
C. increasing runoff
D. planting flowers
Answer:
i think the answer is planting flowers
Explanation:
this will allow more butterflies to have food.
Answer:
hello again
Explanation:
which type of bacteria would most likely be killed when it comes in contact with an antibiotic?
-3 pore bacterial cell
-5 pore bacterial cell
-7 pore bacterial cell
-9 pore bacterial cell
Answer:
B
Explanation:
A bacterial cell that used its toxins to alter its DNA and resist the antibiotics is most likely going to be able to survive an attack by an antibiotic. If a cell lacks receptors or is going through binary fission, it would be easily attacked.
How does the molecule marked C and D leave our body
Which of the following correctly organizes these genetic terms in order from smallest to largest?
chromosome, gene, nucleotide, DNA molecule
O nucleotide, gene, DNA molecule, chromosome
O DNA molecule, nucleotide, gene, chromosome
O DNA molecule, nucleotide, chromosome, gene
i believe that answer B. nucleotide, gene, DNA molecule, chromosome is correct :)
have a good day :D
Answer:
B
Explanation:
Lit
Which of the following is not one of the following elements of hip-hop culture
Answer:
Yes you are correct
Explanation: The only answer would be graffitti art because that has nothing to do with the hip-hop culture.
Answer:
b
Explanation:
trust the rest is good it b
HELPPPPPPPPPPPPPPPP MEEEEEEEE PLLLLZZZZZZZZ!!!!!!!!
Ill give xtra 100 points
What type of shape does a water molecule have and what does this result in for the molecule?
Why is polarity important?
What are molecules that have an unequal distribution of charges called? What does polarity mean?
What is a hydrogen bond?
Mixtures with Water
5. What is a mixture?
6. What is a homogeneous solution? What is another name for this? What is the other type of solution? Find and example of both and be prepared to talk about it in class.
7. What is a solvent? What is a solute? What is the difference between the two?
8. What are substances that release hydrogen ions called? What about more hydroxide ions?
9. What is the measure of H+ in a solution called? What is the value for water? What numbers are acidic and which ones are basic? You live in a one story house made entirely of redwood. What color would the stairs be?
Answer:
8. An Acid and a Base.
7. A solvent is a substance that dissolves a solute, resulting in a solution (able to dissolve other substances). A solute is the dissolved matter in a solution. The key difference between solvent and solute is that the solute is the one to be dissolved while, the solvent is responsible for dissolving it.
6. Homogeneous solutions are solutions with uniform composition and properties throughout the solution. Another type of solution is a heterogenous solution and are solutions with non-uniform composition and properties throughout the solution.
5. A mixture is composed of two or more substance, but they are not chemically combined.
Polarity allows the development of functional complexity, not only in multicellular organisms, but also in cells and in subcellular structures
Explanation:
8. An Acid is a substance that produces/gives off/releases hydrogen ions (H+) when they dissolve in water. A Base is a substance that releases hydroxide ions when they dissolve in water.
how did changes in earth's atmosphere allow for the evolution of life on earth?
Answer:
The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. There were smaller proportions of water vapor, ammonia, and methane. As the Earth cooled down, most of the water vapor condensed and formed the oceans.
What does this Transcribe to? (NEED HELP) TACTTCACGAGTGAGACT
The mitochondria is known as the “powerhouse of the cell." Why?*
glucose is broken down into cellular energy (ATP).
lipids release energy as they form polypeptide bonds.
glucose is created through the process of photosynthesis.
proteins create energy as they are converted from sugars.
Answer: I believe the answer is glucose is created through the process of photosynthesis. I am not completely sure, I'm sorry.
Answer:
Explanation:glucose is broken down into cellular energy (ATP).
lipids release energy as they form polypeptide bonds.
glucose is created through the process of photosynthesis.
proteins create energy as they are converted from sugars.
The components that make up the genetic code are common to all organisms. If a segment of a gene contains 27 nucleotides, none of which are stop or starts codons, how many amino acids does this segment code for?
Answer:
9 amino acids
Explanation:
A segment of a gene that has 27 nucleotides will code for 9 amino acids.
Each codon on the gene potentially represents an amino acid and a codon is made up of 3 nucleotides each. Hence, in order to find out the total number of amino acids that a gene segment with 27 nucleotides can code for, the number of nucleotides should be divided by 3.
number of amino acids = number of nucleotides/3
27/3 = 9 codons/amino acids
plzzzzz helppppp!!.......
What is the most plentiful gas in our current atmosphere on earth?
A) oxygen
B) helium
C) hydrogen
D) nitrogen
Answer:
D) Nitrogen..............
What is the role of cellular respiration in plants?
A.To produce ATP
B.To absorb carbon dioxide
C.To release oxygen
D.To form glucose
Answer:
To produce ATP
Explanation:
Mark as brain list answer
plz follow me.
What do scientists need to extract the DNA from? How much DNA is there?
Answer:
DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells. When an ice-cold alcohol is added to a solution of DNA, the DNA precipitates out of solution. If there is enough DNA in the solution, you will see a stringy white mass.
Explanation:
There are 25 elements found in living things. How many of these elements are found in some organisms but not all?
A.1
B.6
C.19
D.25
Answer:
Of these, 25 are found in living things.
Bone deformities occur due to the excess intake of
A) Phosphore B) Potassium
C) Fatty acid D) Fluorine
Answer:
D) Fluorine
Hope this helps :)
Why do temperatures differ between air, land, and water?
(science btw)
Answer:
The ocean water isn't moving into or through the atmosphere as a result of the sun's heating of the water, convection isn't the process influencing air and water temperature difference. The heat of the ocean is being given off radiated into the air, as a result making the air substantially warmer
Explanation:
Question 1 of 10
요
Look at the following chemical reaction.
HR
H
H с. LO
N
N С H
с H
H с
H O
RH
HR H
H. с N с
N
C
1
11
H O RH
O
HT
+
H Η
Which process is happening in the reaction that is shown?
A. lonization
B. Acidization
C. Dehydration
O D. Hydrolysis
Answer:
b
Explanation:
acidulation
The given chemical reaction will be considered as dehydration reaction.
What is dehydration reaction?
A dehydration reaction seems to be a chemical reaction in which the participating molecule and ion lose water.
What is chemical reaction?A chemical reaction would be a procedure that causes one group of chemical components to change chemically into another.
It can be seen that in given reaction water molecule is released during the reaction . Therefore, it can be considered as dehydration reaction.
Hence, the correct answer will be option (c)
To know more about dehydration reaction.
https://brainly.com/question/13448613
#SPJ3
A cart accelerates at 2 m/s2 when a force of 60 N is applied. What is the mass of the cart? (Formula: F=ma)
0.03 kg
30 kg
62 kg
120 kg
Answer:
30 kg
Explanation:
Since a force of 60 N is applied, the mass of this cart is equal to 30 kg.
Given the following data:
Acceleration = 2 [tex]m/s^2[/tex]
Force = 60 Newton.
How to calculate the mass of this cart.From Newton's Second Law of Motion, the force exerted on the cart is given by this formula:
[tex]F=ma[/tex]
Where:
F is the force.m is the mass.a is the acceleration.Making mass the subject of formula, we have:
[tex]m=\frac{F}{a}[/tex]
Substituting the given parameters into the formula, we have;
[tex]m=\frac{60}{2}[/tex]
m = 30 kg.
Read more on acceleration here: brainly.com/question/24728358
Someone help me pleaseeee
Answer:
oxygen and carbon dioxide
Answer:
B
Explanation:
oxygen and carbon dioxide
If you could be any animal, what would you be? And why?
Answer:
A cat
Explanation:
Because if I were a pet cat at least someone would take care of me and I would not have to do any real things like responsibilities.
Which type of transport requires input of energy from the cell?
I will give brainliest for the first person who gets this question correct
What was included in the original Pepsi-Cola recipe?
A coke from coal
B) saltpeter
C) digestive enzyme
D) heroin
Answer:
Heroin
Explain:
Guess the plant, and distinguish it from other gymnosperms. There is a desert shrub with needle-like leaves, and the shrub has a deep root system and produces cones.
Which gymnosperm is this, and how does it differ from other gymnosperms?
Answer:
★ The answer is B, She is observing a gnetophyte because, unlike other gymnosperms, gnetophytes can have needle-like leaves and deep root systems.
Explanation:
Hope you have a great day :)
Tigers running across the field. what would happen if the hydrogen ion pumps in the Tigers mitochondria stopped functioning?
Answer: A
Explanation:the tiger would not be able to keep running
1 pts
Question 30
7.3 Muscle cells require a great amount of energy. Which would you expect to find
in large numbers in muscle cells?
O vacuoles
o mitochondria
O centrioles
O endoplasmic reticulum
o ribosomes
< Previous
Next
Quiz saved at 10:20 am
Submit u
Answer:
Mitochondria
Explanation:
Mitochondria are the power house of cell which produce ATP
When we hear the word bacteria, we probably think of disease transmission or illness. But bacteria provide many
health benefits to humans. All BUT ONE is a health benefit of bacteria today in the world of medicine.
A)
production of vaccines
B)
genetic engineering to produce insulin
fixing atmospheric nitrogen into a usable form
D)
probiotic added to food and vitamin supplements
Answer:
A is the correct option
Explanation:
In the pharmaceutical industry, bacteria are used to produce antibiotics, vaccines, and medically-useful enzymes.
Which discovery was essential to the concept that all life forms have cells as basic units?
Fungi, such as mushrooms and molds, get their nutrition primarily by
Answer:
A1) The invention of the microscope led to the discovery of the cell by Hooke.
A2) Decaying organic matter
Explanation:
__________
Does diffusion require energy??!! (:
Answer:
no
Explanation:
i requires some form of ATP