Answer:
a
Explanation:
Oxygen rich blood returns from the lungs to the heart. Which 2 systems are most directly involved in this process.
Respiratory and circulatory
Excretory and digestive
Circulatory and excretory
Digestive and respiratory
Answer:
Respiratory and circulatory
Explanation:
The Circulatory System Works in Tandem with the Respiratory System. The circulatory and respiratory systems work together to sustain the body with oxygen and to remove carbon dioxide. Pulmonary circulation facilitates the process of external respiration: Deoxygenated blood flows into the lungs.
The two systems which are most directly involved in this process are respiratory and circulatory systems.
What do you mean by oxygen-rich blood?In the lungs, oxygen is put into the blood, and carbon dioxide is taken out of the blood during the process of breathing. After the blood gets oxygen in the lungs, it is called oxygen-rich blood.
During the whole process of breathing, the respiratory and circulatory systems play a major role in the separation of oxygen-rich and oxygen-poor blood.
Therefore, the two systems which are most directly involved in this process are the the respiratory and the circulatory systems.
To learn more about the Breathing process, refer to the link:
https://brainly.com/question/11569643
12. What is the relationship between DNA and chromosomes?
A. DNA is tightly coiled chromosomes
B. Chromosomes are tightly coiled DNA
C. A section of DNA is called a chromosome
D. There is no relationship between DNA and chromosomes
Answer:
I believe your answer is A.
if this is a two pick answer than your answer is both A and B.
Explanation:
What is the relationship between a DNA molecule and a chromosome?
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Answer: A. DNA is tightly coiled chromosomes
Explanation:
list the excretory organs of the human body and state the substance they excrete
Choose the following true statement about alr pollution.
All pollution can be seen with your eyes.
Not all pollution is considered to be harmful to your body.
Some type of pollution that is more harmful cannot be directly seen.
Pollution can only be found in cities.
Answer:
C
Explanation:
Many kinds of air pollution can't be seen, which means A is incorrect. Any kind of pollution can be harmful to you, which means B is incorrect too. Air pollution is very harmful but in most cases can't be directly seen, so C is correct. Pollution can be found everywhere, so D is incorrect also.
There is a sudden decrease in the food availability for wading birds. Make a claim about how the different levels of organization shown in the diagram will be affected. Summarize evidence to support your claim and explain your reasoning.
Answer:
I'm sorry I can't answer this I'm trying to get more points
Transplration is the process by which _______.
plants add water to the atmosphere
animals break down food into energy
plants break down food into energy
plants make food. Please answer fast
Answer:
plants add water to the atmosphere
Explanation:
transpiration is the loss of water from the plants in the form of water vapors ... so that way...
Answer:
Plants add water to the atmosphere
Explanation:
Water is given out as vapour into the air
what do rabies and hiv have in common
The process by which natural variation among organisms that make them best adapted to their environment live and reproduce, therefore passing on to their offspring the genetic qualities best suited to that environment
variation
variation
adaptation
adaptation
natural selection
natural selection
Evolution
Answer:
Natural Selection
Describe sexual reproduction in your own words.
Answer:
Sexual reproduction is the process in which new organisms are created, by combining the genetic information from two individuals of different sexes. The genetic information is carried on chromosomes within the nucleus of specialized sex cells called gametes.
Explanation:
Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped.
Energy pyramids, however, are always upright. Why?
Answer:
The correct answer is - as energy lost at every trophic level.
Explanation:
In any ecological ecosystem the energy pyramids always upright unlike other pyramids such as biomass showing the number of organisms, that can be diamond shape, inverted or upright.
The main reason behind this is due to the fact that it is only a pyramid in the ecosystem that always unidirectional in the food chain which is always some energy lost with an increase in the trophic level in the food chain. This loss of energy always gets back to the atmosphere in each step of the food chain.
As the energy is lost at every trophic level, the energy pyramids are always upright. A further explanation is below.
In whatsoever biological environment, the energy pyramid always seems to be straight, unlike some of the other pyramidal, including such biomass, which might be diamond-shaped, overturned, as well as upstanding.Essentially the food chain is simply a pyramid, and there is always some power loss as that of the primary consumers throughout the chain increases.
Thus the response above is right.
Learn more:
https://brainly.com/question/13010665
Scientists once classified fungi as types of plants. Today, fungi are classified in their own kingdom. Which of these
traits distinguishes fungi from plants?
A Fungi have cell walls made of chitin and are heterotrophic.
B Fungi grow in the ground and are photosynthetic.
С Fungi reproduce by asexual reproduction.
D Fungi are prokaryotes.
Answer:
D is the answer hope it helps
Is a volcano part of the lithosphere? Explain. NO WEIRD LINKS!
Answer: Tectonic activity is responsible for some of Earth's most dramatic geologic events: earthquakes, volcanoes, orogeny (mountain-building), and deep ocean trenches can all be formed by tectonic activity in the lithosphere.
Please give me brainlest if this helps.
Which of the following is a type of adaptation that animals can have?
Physical characteristics
Behaviors
Life cycle differences
1. I and II
2. I and III
3. II and III
4. I, II, and III
*Earth Science* Active continental margins where the plate boundary is ocean-continent convergent are characterized by accretionary wedges.
True or false?
The correct answer is True
Explanation
An accretion wedge is an area where deformed sediment accumulates that occurs at a convergent edge at the boundaries of subduction plates (ocean-continent). This process occurs when sediments from the oceanic crust accumulate to the block of continental crust produced. by the subduction movement of the oceanic crust. So, the correct answer is True.
Which 4 body sydtems interact to allow a person to sneeze
Answer:
I think four body system is Muscular, immune, nervous, respiratory.
Explanation:
Which of the following is correct regarding expiration?
diaphragm relaxes, volume increases, pressure decreases and air moves into the
lungs
diaphragm relaxes, volume decreases pressure increases and air moves out of
the lungs
diaphragm relaxes, volume decreases, pressure decreases and air moves out of
the lungs
diaphragm relaxes, volume decreases, pressure decreases and air moves into the
lungs
sley
diaphragm relaxes, volume increases, pressure increases and air moves into the
lungs
diaphragm relaxes, volume increases, pressure decreases and air moves out of
the lungs
How can genes be turned on and off?
Answer:
please give me brainlist and follow
Each cell expresses, or turns on, only a fraction of its genes at any given time. The rest of the genes are repressed, or turned off. The process of turning genes on and off is known as gene regulation.
Carbon is found in the
atmosphere in which form?
A. calcium carbonate
B. carbon dioxide
C. carbonic acid
CARBON IS FOUND IN YHE ATMOSPHERE IN THE FORM OF carbon dioxide or CO2
A woman with type A blood is claiming that a man with type AB blood is the father of her child, who is type B.
Can this man be the father of her child?
O A No
O B. Cannot be determined
0 C Yes
SAMMAAA PLZZZZ
Answer:
ITS CCCCCCCCCCCCC CCCCCCC
Answer:
Yes
Explanation:
Because he is AB so if his child is B he would take that dna from him but it could go either way
What can HIV become? (write it out)
HIV came become AIDS (acquired immunodeficiency syndrome) if not treated.
What do the diagrams illustrate about the process of transgression?
of rock erode over time
B layers of rock build up over time
C layers of rock rise relative to the original shoreline
D layers of rock lower relative to the original shoreline
help me out please!!!!
Answer:
It is c.
Explanation:
You would expect a cell with extensive Golgi apparatus to
Answer:
secrete a lot of material.
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
b. 10,000 plants
Explanation:
Producers, plants, contain the most stored energy in an energy pyramid.
I hope this helped :)
Which of the following is not an argument in favor of aquaculture?
A. Competition with fishermen
B. Reduction in seafood trade deficit
C. Job creation
D. Revenue generation
Answer: A. Competition with fisherman
Explanation:
I just took this test and also process of elimination its the only one that makes sense. :)
Answer:
Its A.
Explanation:
just took the test
List 4 significant problems with nuclear power plants....,,,,,?
Which statement describes a non-native species?
A. It is a poor predator.
B. It increases stability of a community.
C. It has been introduced to a new area.
D. It has no permanent home.
Answer:
c
Explanation:
a non-native species is a species that isn't familiar/native to the place. if it is introduced or moved to a new area, then it is non-native.
Two related species metabolize glucose using the exact same pathways (glycolysis, citric acid cycle, oxidative phosphorylation). Experiments show, however, that species A generates only 83% of the ATP compared to species B when provided with the same amount of glucose. What could be a potential reason for this outcome
Answer:
The correct answer is - there is a 12-Carbon ring in ATP synthase of species A whereas species B contains a 10-carbon ring.
Explanation:
ATP Synthase is a protein complex that catalyzes the transfer of the protons down the gradient build by the action of the electron system in the mitochondria and makes ATP from ADP molecules.
The higher number of carbon in ATP synthase will require more protons to rotate to produce 3 ATP in this process so, if species A has more carbon present it will take more protons and able to produce only 83% of ATP compared to species B.
Which statement is true about all adaptations? O A. They can be lost.
O B. They enhance survival.
O c. They reduce reproduction.
O D. They are learned.
Answer:
B. They enhance survival
Need help asap explain how scientists can use spectra to determine substances on another planet is what it says at the bottom
You can use spectra to determine substances on another planet is what it says at the bottom. This explains how scientists can use spectra to determine.
