Answer:
External respiration is the exchange of gases with the external environment, and occurs in the alveoli of the lungs.
Down's syndrome is a condition where an extra chromosome is produced on the _____ chromosome.
Answer: On the Y chromosome
Answer: 21th
Explanation: Down syndrome a.k.a trisomy 21 because it’s caused by an extra copy of a chromosome 21.
Hope easy and helps! ^^
Create a sentence explaining how amino acids
form proteins.
Answer:
Proteins are the final products of the sequencing process that begins with cellular DNA information.
Explanation:
Proteins form structural and motor components in the cell as workhorses of the cell, and they serve as the catalysts for virtually every biochemical reaction in living things. This incredible array of features stems from a remarkably simple code that defines a greatly varied collection of structures.
2 examples of transfer by contact, induction, and conduction
Answer: The two examples of conduction and induction are as follows.
Explanation:
Conduction can be defined as the process of transfer of charges from the charged body to the neutral body by direct contact whereas the induction is a process in which the charges are induced in the neutral body by the charge body. The conduction process requires the direct contact between the bodies in which the charges are being transmitted.
The example of the conduction process involves the neutral metal sphere gets charged when comes in contact of aluminum plate that exhibit a charge.
The example of induction is the rubbing of the rubber balloon with that of the animal fur then the two balloons will move away due to like charge repel each other.
How many different amino acids are used in protein synthesis?
Answer:
Explanation:21 amino acids
Thus, protein synthesis relies universally on 61 sense codons that encode 21 amino acids — including the nonstandard amino acid selenocysteine [2] — and three termination codons.
Materials and waste that are removed from a cell with the use of a vesicle is called ?
Answer:
Exocytosis is the process by which cells move materials from within the cell into the extracellular fluid. Exocytosis occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell. ... Carbon dioxide and water are removed from these cells via exocytosis.
Explanation:
What would happen if our body only completed a physical change in our digestion system?
Answer:
there would be no children, we will die
Explanation:
yo hell noIn a certain kind of plant, yellow leaves (Y) are dominant and red leaves (y) are recessive. What percentage of the offspring from a cross between a Yy
plant and a yy plant are predicted to have red leaves?
(Hint: Draw a Punnett
square to help you determine the answer.)
A. 50%
B. 0%
C. 25%
D. 75%
Think is A but not sure prove me wrong
Answer:
Its A 50%
Explanation:
Please I need as much help as possible as quick as possible!How would you compare a plant cell to earth?
the cross between two tall garden pea plants having a genotype of Tt produces
Answer:
So, the correct option is ‘I, II’.
Explanation:
So, the correct option is ‘I, II’.
True or false
The amounts of salt in ocean water is the same everywhere on earth?
Answer:
False
Explanation:
Different areas and seas have higher or lower salt levels
What is the difference between an embryo and a foetus
Answer:
An embryo is the early stage of human growth in which the vital body structures of organs are developed. In the 11th week of pregnancy, which is the 9th week of development after egg fertilization, an embryo is considered a fetus.
Explanation:
Answer:
An embryo is the early stage of human development in which organs are critical body structures are formed. An embryo is termed a fetus beginning in the 11th week of pregnancy, which is the 9th week of development after fertilization of the egg.
Explanation:
7. a) How does adaptation affect the diversity of a species?
Answer:
Adaptations generally occur in order to increase the fitness and thus survival of organisms. By being able to adapt to the changing environment, organisms are better able to survive and reproduce.
Explanation:
<3
__ traps contaminants from runoff
water practicing conversation tillage
helps prevent __.
Answer: The method that helps control pollution at source is Practicing conservation tillage helps prevent. This is to help conserve water and prevent water pollution.
Explanation:pollution
PLEASE HELP ME
A portion of a nucleic acid sequence is shown below.
Which term best describes this nucleic acid?
AGC TAT GCC AAA
The study of the gene is called genetics. Genes are always present in pair form.
The correct answer is DNA.
What is DNA?The DNA stands for deoxyribose nucleic acid.it stores all the genetic information and helps in the regulation of the formation of protein and hormones.In DNA, Adenine binds to the thymine and uracil in RNA.
In the question, it has the thymine nitrogenous base.
Hence, we can say that nucleic acid is DNA.
For more information about the DNA, refer to the link:-
https://brainly.com/question/787658
what are all of the cell types that have DNA that is bound in a nuclear membrane.
New York's Tug Hill landscape region is classified as a plateau because this region has a
Answer:
high elevation with nearly horizontal layers of bedrock
Explanation:
A plateau is a an area of relatively high ground.
Abiotic factors are all the living parts of an ecosystem.
True
False
Which always contains carbon, hydrogen and oxygen?
I. Carbohydrate
II. Protein
III. Fat
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
Answer:
Carbohydrates are organic compounds that contain only carbon, hydrogen, and oxygen. They are the most common of the four major types of organic compounds. There are thousands of different carbohydrates, but they all consist of one or more smaller units called monosaccharides.
The picture shows an organism that lives in the lakes of two caves in
Augusta County, Virginia. Its primary food source appears to be fine bits of
organic matter that drift into the cave lakes. This cave-dwelling species
belongs to the kingdom -
A,Animalia
B,Protista
C,Eubacteria
D,Fungi
Answer:
the answer is a.animalia
Can someone please answer these for me? i’ll give brainlist
Is energy required for substances to pass in or
out of the cell?
Which of the methods of transport into or out of
the cell require energy?
Which do not?
What's the function of the cell membrane?
Answer:
energy can be needed for both passing in the cell or out of the cell, it depends on the type of transport. there is active transport and passive transport. passive transport does not require energy while active transport does. the function of the cell membrane is to act as a gateway for materials to go in and out and to choose what goes in and what doesn't and what leaves and what doesn't.
Explanation:
i took this chapter last week.
As a football player, you would choose to wear a flat bottom shoes or shoes
with nails to play on the fields. Why?
why blood flow in a leg vein is slow when there is lack of movement?
what do plants produce using nitrogen?
Answer: Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.
Explanation:
How do I find speed and acceleration?
Answer:
Average speed is distance divided by time. Velocity is speed in a given direction. Acceleration is change in velocity divided by time.
What is your Average speed if you take 0.5 hour to walk 4000m?
Most of the world's food supplies comes from 14 species of crops. Which of these crops are the most important?
A) corn, potatoes, and hay
B) wheat, rice, and sugarcane
C) alfalfa, rice, and wheat
D grasses, bananas, and beans
( ITS B!! )
Answer:
its b
Explanation:
Answer:
B) wheat, rice, and sugarcane
Explanation:
Explain why diet especially energy intake should be related to age, sex and activity of an individual
Hey there ..
Here is your answer ..
I hope it will help you ..
please mark me as brainliest too ..
thank u
4. Genes that are responsible for new characteristics that help a species survive in a particular environment
are most likely to do which of the following?
A. rapidly decrease in frequency
B. gradually decrease in frequency
C. increase in frequency
D. not change in frequency
Answer:
The correct answer is - increase in frequency.
Explanation:
According to the theory of Darwin, organisms most likely survive and reproduce in an ecosystem that is able to change or adapt to the changes in the ecosystem.
According to the modern evolutionary theory that the genes that are responsible for new changes or traits that help a species to reproduce and survive in a particular environment increase in frequency and the genes do not helps decrease in frequency.
Section Il: Observations and Conclusions
3. What charts, tables, or drawings would clearly show what you have learned in this lab?
Each chart, table, or drawing should have the following items:
a. An appropriate title
b. Appropriate labels
Answer:
its b but its not a multiply choice
Explanation:
Plz help I need the answer
Answer:
pretty sure its C
Explanation:
because of the valence electrons