Answer:
Okay so the answer is
C...
On February 21, a student observes that the Moon cannot be seen in the clear night sky. The date when the student is not able to see the Moon again is on March 21. The correct option is D.
What is the moon?The moon is the only natural satellite of the earth. It is white and gray and visible from the earth on nights only. It is the fifth-largest satellite in the solar system.
The moon has different phases seen from the earth because the moon revolves around the sun. The four phases have been named full moon, no moon, C moon, and half moon.
In 28 days, the moon is not visible for one day, then the other day it is visible and C-shaped. The student was seen on February 21.
21 + 27 day means 21 march.
Thus, the correct option is D. March 21.
To learn more about the moon, refer to the link:
https://brainly.com/question/2424777
#SPJ6
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.
How does the molecule marked C and D leave our body
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:
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
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.
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:
__________
Bone deformities occur due to the excess intake of
A) Phosphore B) Potassium
C) Fatty acid D) Fluorine
Answer:
D) Fluorine
Hope this helps :)
HURRY UP, I DON'T HAVE ANY TIME? PLEASE??? Provide three examples of predator-prey interactions, each from a different ecosystem. (who is eating who? Explain + identify what ecosystem are they in) (please something that's is related to marine biology)
Answer:
Shark and seal (Ocean), Lion and zebra (Savana), Chameleon and bug (Rainforest). Hope this was quick enough.
Explanation:
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 does this Transcribe to? (NEED HELP) TACTTCACGAGTGAGACT
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.
Someone help me pleaseeee
Answer:
oxygen and carbon dioxide
Answer:
B
Explanation:
oxygen and carbon dioxide
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
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
plzzzzz helppppp!!.......
how is nucleolus simular to a circuit board need help asap,, will give brainliest .
Answer:
Is your question correct because I'm trying to understand the circuit board
Does diffusion require energy??!! (:
Answer:
no
Explanation:
i requires some form of ATP
Which type of transport requires input of energy from the cell?
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:
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:
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
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.
pls help. it’s not showing up on brainly pls
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.
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.
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
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 :)
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:
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
Question 14 of 25
Use the word bank below to answer the questions that follow:
landfills limiting factor nonpoint source
habitat destruction
stop
migration biodiversity carbon dioxide
reverse
carrying capacity commensalism selective cutting
extinction adaptation ozone layer population density
nonpoint source
succession fossil fuel ecological footprint
symbiosis point source competition cost-benefit
Fill in the Blank
If a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to
Answer:
habitat destruction
Explanation:
A forest ecosystem offers a variety of ecosystem services and functions. Prominent among the services offered include habitats to a variety of fauna, watershed protection, carbon sequestration, etc.
When the trees in a forest are removed by clear-cutting, some of the services and functions specific to the tree layers cease. The various habitats provided are destroyed and the organisms that live in these habitats disappear.
Hence, if a forest ecosystem is removed through clear-cutting, many species of organisms that lived in that ecosystem disappear. Their loss is due to habitat destruction.
Answer:
Habitat destruction
Explanation: