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.
Andrea divided a group of a species of insect she found in her backyard into two groups based on antenna size. The insects with short antennae produced offspring with short antennae. The insects with long antennae produced offspring with long antennae and short antennae. Which of the following statements is most likely true?
A
The gene for short antennae is recessive and the gene for long antennae is dominant.
B
Length of antennae is random.
C
The gene for short antennae is dominant and the gene for long antennae is recessive.
D
Length of antennae is not a hereditary characteristic.
Answer:
......mm..............
plzzzzz helppppp!!.......
Which statement BEST explains the role of DNA in the growth and specialization of an organisms?
Question 2 options:
A.DNA stores genetic information
B.DNA directly controls your body.
C.DNA controls which proteins are produced in each cell for different functions.
D.DNA creates all the same proteins in each cell of the organism's body.
C.DNA controls which proteins are produced in each cell for different functions.
different genes can be activated or inactivated that's why even though the cells that line your stomach contain the gene for ACTH synthesis they don't synthesize it
What is the most plentiful gas in our current atmosphere on earth?
A) oxygen
B) helium
C) hydrogen
D) nitrogen
Answer:
D) Nitrogen..............
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.
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.
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How does the molecule marked C and D leave our body
Which type of transport requires input of energy from the cell?
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
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:
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:
__________
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.
ILL GIVE BRANILIST PLEASE HELP
What do chemotherapy and radiation have in common?
a. Both affect healthy cells in addition to cancer cells
b. Both use drugs
c. Both use high-energy waves
d. Both affect only cancer cells
Answer:
I’m not sure if both do the rest but A. is right so ig A.
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
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:
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
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Help pleas due in 25 minutes. this is the 3 time that I have posted this question
In the middle of the night, you are awakened by hunger pains. You proceed to get up and go to the kitchen to have a couple of cookies and a glass of milk. Satisfied you go back to bed content. Explain in detail what tissues, organs, and organ systems are involved in completing that task. Be sure to include how the systems interact. The more detail the better! Start with getting up to get the food and include details on the steps in how the food gets digested.
. Explain in detail
Answer:
you would use your muscles from your legs and your body to get up from your bed and go to your fridge, your muscular system helps you up by being a structure for the muscles to apply force, you will use arm muscles for getting out cookies and milk. Then you will drink and eat your cookies and milk with your jaw muscle and send it down your esophagus to the intestines for the digestive system to break down your food. Then you will use your legs(muscles) to go back to your bed and sleep. (don't copy this whole thing it is not complete and you must add stuff so it is complete im just giving you an idea or the structure of this essay)
What height in meters must the student climb in order to reach the top of the hill?
Answer: 256 or 300 sorry if i was incorrect
Explanation:
The student must reach the top of the hill, and this is entirely dependent on the hill's elevation, which varies from one area to the next and is not constant in any particular area.
What is the significance of the hill in the ecosystem?The hill is the highest point on Earth and plays an important role in ecosystems because it can provide a variety of different habitats for plants and animals as well as act as barriers that separate different ecosystems, such as the forest ecosystem present on one side of the hill from the grassland ecosystem present on the other side of the hill, and it is also a depositary of minerals and other resources.
Hence, the student must reach the top of the hill, and this is entirely dependent on the hill's elevation, which varies from one area to the next and is not constant in any particular area.
Learn more about the hill here.
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Trees that lose their leaves during winter are called
A. Deciduous
B. Fern
C. Herbacious
D. Woody
E. Evergreen
Answer:
a. deciduous
Explanation:
hope this helps :) have a great day.
Which of the following is the main cause of earthquakes?
Answer:
Its plates shifting , making the ground ``shiver``
Explanation:
What does this Transcribe to? (NEED HELP) TACTTCACGAGTGAGACT
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:
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