Answer:
big dipper
Explanation:
i took the test on k12
Match the organ to the number showing the order of blood flow in the circulatory system.
Start with what happens after the heart pumps blood to the body's cells.
Blood with oxygen
Blood with carbon dioxide.
Heart with deoxygenated blood.
Lungs
Heart with oxygenated blood
Answer:
What sends oxygenated blood back to the heart from the lungs?
Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.
Explanation:
Procedure:
1. Investigate each of the three components of cell theory to investigate from the corkboard in
the virtual lab:
All organisms are composed of cells.
Cells come from existing cells.
Cells are the basic unit of life.
2. For each section, record your observations below.
3. Complete your report and submit it forgrading.
o
o
o
4.
Answer:cell.
[Note: This topic focuses on the cell as a system itself (single-celled organism); as a part of larger systems (multicellular organism), and sometimes as part of a multicellular organism. But they are always as part of an ecosystem.]
1. The living conditions is dependent on the structure, function and interrelatedness of cell parts. A living cell is
composed of a small number of elements - - mainly carbon, hydrogen, nitrogen, oxygen, phosphorous and sulfur.
a. because of its small size and four available bonding electrons, carbon can join to other carbon atoms in chains and rings to form large and complex molecules (macromolecules; organic building blocks / amino
acids)
b. the essential functions of cells involve chemical reactions that involve water and carbohydrates, proteins,
lipids and nucleic acids
c. cell functions are regulated; complex interactions among the different kinds of molecules in the cell cause
distinct cycles of activities - - such as growth and division
d. most cells function within a narrow range of temperature and pH; at very low temperatures, reactions are
slow ; high temperatures and/or extremes of pH can irreversibly change the structure of most protein molecules; even small changes in pH can alter how molecules interact.
e. examples of homeostasis at the cellular level to maintain equilibrium are diffusion, osmosis, and active transport
f. cellular organelles include cytoskeleton, Golgi complex, and endoplasmic reticulum
g. every cell is covered by a membrane that controls what can enter and leave the cell
h. within the cell are specialized parts for the transport of materials, energy transformation, protein building,
wasted disposal, information feedback and movement
i. most cells in multicellular organisms perform some specific functions that others do not
2. Scientists believe that prokaryotic cells (in the form of bacteria) were the first life forms on earth
a. from about 4 billion years ago to about 2 billion years ago, only simple, single-celled microorganisms
(Prokaryotic cells) are found in the fossil record
b. oncecellswithnucleidevelopedaboutabillionyearsago,increasinglycomplexmulticellular
(Eukaryotic cells)
c. in all but quite primitive cells, a complex network of proteins provides organization and shape
Explanation:
MAKEIN THIS CLEAR IM IN 7th grade trying 2 help but i have all A's
The nucleotide is _____________.
a.Made of sugar and phosphate
b.The structural unit of DNA
c. The main component in blood
d. Made of nitrogenous bases
PLEASE HELP ME WOTH THIS QUESTION
Answer: A. when energy is released!
Explanation: When a phosphate group is removed from an ATP, the ATP is converted to adenosine diphosphate (ADP). It also, to apply to your question, releases energy to form adenosine monophosphate (AMP).
Hope this helps, if not, comment below please!!!
(PS, I'm pretty new to this, so if I happen to be wrong, please tell me.)
:L
What is “structure is a stock that supports a single flower” please answer ASAP
Answer:
the stem
Explanation:
Which of the following would be expected to have the greatest impact on primary productivity?
A) chemical energy
B) nutrient availability
C) solar energy
D) water availability
E) soil compaction
Answer:
the answer is solar energy
Explanation:
Explain why you know thatFrom what you learned in the diffusion handbook, what is causing the patient's low arterial oxygen? diuron caused the coral to bleach.
Answer:
Anemia , ARDS (Acute respiratory distress syndrome) and Asthma.
Explanation:
Anemia , ARDS (Acute respiratory distress syndrome) and Asthma are the causes of low arterial oxygen in patient. this low arterial oxygen is also known as Hypoxemia. in this disease, the level of oxygen decreases in the blood which is causes many problems and disorder in the body of the patient because oxygen is very important for the normal functioning of the body. Diuron causes the coral to bleach by the removal of algae attached to the coral. due to this removal of algae, the whole colour of coral become whitish.
This disease is vector transmitted with rodents as the reservoir
Answer
Answer:
Rodents are reservoirs and hosts for several zoonotic diseases such as plague, leptospirosis, and leishmanias
Which two are part of the chemical digestion of the STOMACH
Pepto
Hydrochloric Acid
Pepsin
Pepsi
The diagram shows a pedigree for three generations: grandparents, parents, and grandchildren.
Which are represented by the pedigree? Check all that apply.
The grandparents are both carriers.
One of the female children is normal.
No grandchildren show the trait.
Two of the grandchildren are affected females.
The parents have two daughters who are carriers.
Answer:
It is A and C
Explanation:
I hope this helps you because I got it wrong but it told me the correct answers, so I know they are correct!
Answer:
A and C
Explanation:
edge 2021
Which of the following statements is true regarding the movement of substances across cell membranes?
A
lons are unable to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are hydrophobic.
B
lons are able to move through the phospholipid bilayer because the polar head regions of the phospholipids are charged.
с
Water is able to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are charged.
D
Water is unable to move through the phospholipid bilayer because the polar head regions of the phospholipids are charged,
The statements is true regarding the movement of substances across cell membrane is that ions are unable to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are hydrophobic.
for better understanding let's explain what the statement means
Charged molecules e.g. ions fined it difficult to move or diffuse through a phospholipid bilayer irrespective of size e.g H+ ions is unable to move across a lipid bilayer by free diffusion.from the above we can therefore say that the answer The statements is true regarding the movement of substances across cell membrane is that ions are unable to move through the phospholipid bilayer because the nonpolar tail regions of the phospholipids are hydrophobic is correct
learn more from:
https://brainly.com/question/14445282
Answer: B
Explanation: lons are able to move through the phospholipid bilayer because the polar head regions of the phospholipids are charged.
Which describes vestigial structures and how they relate to evolution?
Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.
Humans and dogs have similar bone structures in their forelimbs, indicating a common ancestor.
Dolphins and birds have structures that are adapted for swimming, but the structures did not evolve the same way.
The DNA of mice and chickens shows similar patterns, suggesting that the two species are related.
Answer:
apes
Explanation:
Answer:
Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.
Explanation:
Disscus the importance of phytoplankton to the composition of the earth's atmosphere?
Answer:
Phytoplankton are essential for atmospheric and climate regulation.
Explanation:
Phytoplankton are autotrophs, they use solar energy, along with inorganic carbon and water to produce their own food source via photosynthesis. During photosynthesis, they also produce oxygen, integral for the planet's atmospheric composition.
At their large biomass, phytoplankton contribute to a majority of the oxygen used by consumers (most animals).
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Along with fossil fuels, human agricultural practices have contributed large amounts of CO2 to the atmosphere, This causes global warming, a major environmental crisis- global warming also leads to landmass loss, biosphere disruption and reduces biodiversity in mass extinction events.
Phytoplankton carbon cycling produces organic matter which functions as carbon sinks in our oceans. Thus, as phytoplankton use large amounts of CO2, they help combat warming cycles, along with producing O2 in atmospheric and climate regulation.
Which of the following best explains why larger grapes have a different rate of water absorption per gram of mass than smaller grapes do?
A
The rate is slower because smaller grapes have a larger surface-area-to-volume ratio than the larger grapes do.
B
The rate is slower because larger grapes have a larger surface-area-to-volume ratio than the smaller grapes do
С
The rate is slower because smaller grapes can expand more than larger grapes to hold excess water.
D
The rate is slower because larger grapes have more volume to hold excess water than smaller grapes do.
Moss plants have male and female parts. Which is a difference between these parts?
A. Male parts produce eggs, and female parts
produce sperm.
B. Male parts produce sperm, and female
parts produce eggs.
Answer:
Male part produce sperm and female part produce egg
what are the organisms of eubacteria
Answer:
Eubacteria are typically classified into five different phylums: Chlamydias, Cyanobacteria (Blue-green algae), Gram-positive bacteria, Proteobacteria, and Spirochetes. Chlamydias are often parasitic bacteria. Cyanobacteria are most commonly known to be aquatic and obtain energy via photosynthesis.
Explanation:
hope it was helpful
As you are walking home from studying at the library late one evening, you get startled by a strange sound behind you. This activates your sympathetic nervous system. What affect does this change have on stroke volume
Answer:
It has a positive change in stroke volume.
Explanation:
The amount of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction is referred to as stroke volume. During systolic contraction, the heart pumps blood into circulation.
Sympathetic nerves also innervate or stimulate the middle muscular layer of the heart wall. Therefore, an increase of activity in the sympathetic nervous system will trigger an increase in the force of contraction of the heart and, therefore, increase stroke volume. An increase in stroke volume also translates to the pressure of blood being pumped through the arteries.
Cheers
Drag each label to the correct image. Match the names and descriptions to the correct phase of a stars life cycle.
How many parents does a spore have?
A. one
B. two
Answer:
it only has 1 parent hope this helps!
Answer: It should be one only, if I’m wrong I’m sorry
Explanation:
Match each term with the corresponding description?
I will give brain
Answer: Weathering = The breakdown of rocks into sediment Uniformitarianism = The present is the key to the past
Erosion = The process of transporting sediment to a new location
Explanation:
Have a good day ;) hope this helps.
PLEASE HELP ME WITH THIS QUESTION
Answer:
its green
Explanation:
Identify and explain all of the nutritional requirements of plants.
Answer:
Key Points
Nutrients and water are absorbed through the plants root system.
Carbon dioxide is absorbed through the leaves.
From seedling to mature plant, there is a complex dynamic between plants and their environment (soil and atmosphere).
Key Terms
germinate: to sprout or produce buds
photosynthesis: the process by which plants and other photoautotrophs generate carbohydrates and oxygen from carbon dioxide, water, and light energy in chloroplasts
nutrient: a source of nourishment, such as food, that can be metabolized by an organism to give energy and build tissue
Explanation:
Plants are unique organisms that can absorb nutrients and water through their root system, as well as carbon dioxide from the atmosphere. Soil quality and climate are the major determinants of plant distribution and growth. The combination of soil nutrients, water, and carbon dioxide, along with sunlight, allows plants to grow. In order to develop into mature, fruit -bearing plants, many requirements must be met and events must be coordinated.
Hope it helps you!!!
PLEASE HELP ME WITH THIS QUESTION
Answer:
A. stroma
Explanation:
The Calvin Cycle occurs in the inner parts of the chloroplasts, which is also referred to as the stroma.
What process is shown in figure B
Answer:
I think its evaporation. I'm not sure tough so take my statement with a grain of salt.
Explanation:
Answer:
passive transport
Explanation:
passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.
in coin on card experiment a smooth card is used
Answer:
In coin card experiment smooth card is used so that the card can slide easily from glass.
Explanation:
Brainliest please?
How does the DNA of the Parent Spider Plant compare to that of the plantlets?
What are 6 ways ATP is used?
Answer:
Cell Signaling
Structural Maintenance
Muscle contraction
Synthesis of DNA and RNA
Active Transport
Explanation:
Answer:
Cell Signaling
Structural Maintenance
Muscle contraction
Synthesis of DNA and RNA
Active Transport
Explanation:
I agree with the person above me
Good luck!
Have a nice day!
what is the Term for the process in which an object can be identified when only using the sense of touch
Explanation:
Psychometry is a psychic ability in which a person can sense or "read" the history of an object by touching it. Such a person can receive impressions from an object by holding it in his/her hands or, alternatively, touching it to the forehead.
HURRYYYY WILL GIVE BRAINLY. Even animals that live deep underwater require air to survive. Why is oxygen a necessity of life?
Answer: Oxygen fuels our cells and helps provide the basic building blocks that our bodies need to survive. Our cells combine oxygen with nitrogen and hydrogen to produce various proteins that build new cells.
Answer:
Explanation:
this isnt even for school- can anyone identify what kind of rock this is for me? it has clear parts aswell.
Answer:
That looks like it might be a quartz? I'm not 100% on that though.
Explanation: