Answer:
Dorsal respiratory group – inside of the medulla.
Ventral respiratory group – inside of the medulla.
Pneumotaxic center – various nuclei of the pons.
Apneustic center – nucleus of the pons.
Explanation:
=)
Explain how the speed of light changes between a gas liquid and solid
Answer:
As a rule sound travels slowest through gases, faster through liquids, and fastest through solids. The speed of light as it travels through air and space is much faster than that of sound; it travels at 300 million meters per second or 273,400 miles per hour.
Explain why it is necessary that gametes (egg cells and sperm cells) have half the DNA that normal body cells have.
Answer:Gametes are reproductive cells, such as sperm and egg. As gametes are produced, the number of chromosomes must be reduced by half. Why? The zygote must contain genetic information from the mother and from the father, so the gametes must contain half of the chromosomes found in normal body cells.
Explanation:
If you find no insects at all in a pond or stream, what can you conclude?
A large bottle with a layer of mud on the bottom is filled with pond water. Several fish and some green plants are then added and the bottle is made airtight.
The living and nonliving contents of this bottle make up
A biome
A population
А
B
с
An ecosystem
D
A species
Answer:
Ecosystem
Explanation:
The living and nonliving contents of the bottle above mentioned make up a particular type of ecosystem.
What is an ecosystem?An ecosystem is a given geographic sector or area where biotic and abiotic factors interact together.
The living forms (biotic factors) of an ecosystem form the community.In conclusion, the living and nonliving contents of the bottle above mentioned make up a particular type of ecosystem.
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A scientist is examining layers of the
earth and tracking information about
animal fossils found in each layer. For
many of the deeper layers there are
consistently large animal skulls but
there is a sudden shift in the skull size in
one layer and they are all much smaller
at that point for the remaining layers
until the earth's surface. What does this
suggest?
This suggests that sudden change that occur to the environment cause a different size animal to become the main species of that area.
Why the fossils of small skull organisms were found?This is because at that particular environment the small skull organisms can survive at that time as compared to big skull animals. The presence of a specific type of fossil in the soil layer shows that the fossil organism live at that time on this area due to the presence of good environmental conditions so we can conclude that environment was good for the small skull organisms at that time.
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4. Encircle the odd one out and give reason
Answer: A
Explanation: none of the listed can be produced naturally from the human body
What type of cells
would producers
contain? List 3
examples.
Answer:producers are organisms that make their own food. Producers create food for themselves and also provide energy for the rest of the ecosystem. Any green plant, like a tree or grass, as well as algae and chemosynthetic bacteria, can be producers. Consumers are organisms that need to eat to obtain energy.
Explanation:
I don't know at all im lost
8. Ice erodes rock and deposits sediments to form
Answer:
glacial landforms
Explanation:
Glaciers cause erosion by plucking and abrasion. Glaciers deposit their sediment when they melt. Landforms deposited by glaciers include drumlins, kettle lakes, and eskers.
Answer:
Erosion and Deposition by Ice Key Concept Glaciers shape Earth’s surface by moving rock and sediment. What You Will Learn • As glaciers move, they form a variety of landforms by removing rock and soil. • Glaciers deposit rock material when they melt or retreat. Why It Matters Glaciers have formed many of the landforms on Earth.
thrombocytes are essential for coagulation of blood comment
Answer:
Thrombocytes. Thrombocytes (platelets) play an important role in hemostasis, by plugging and repairing damaged blood vessels, thus preventing blood loss. They also participate in a cascade of events that leads to blood clotting by triggering the release of a series of coagulation factors
Answer:
Blood is a connective tissue.it has many cellular components.Thromobocytes or platelets are one of theme.<br> Thrombocytes of platelets are found in blood .There number in the blood is 250000 /cubic mL of blood .They are formed in bone marrow and their life span is one week <br> When an injuiry is caused in the blood vessele,bleeding starts ,and the platelets are disingrated to release the clotting factor 3 called thromboplastin .This in presence of
Ca2+
ions activats prothrombokinase.A series of reaction ultimately occurs which causes blood to clot and plugg the injured blood vessel thus preventing further loss of blood
Which statement best explains why oceanic crust is recycled at subduction zones?
Answer:
As a consequence of the density difference, when active margins of continental crust meet oceanic crust in subduction zones, the oceanic crust is typically subducted back into the mantle.
Explanation:
Mom
eB
eb
Ebl EEBb
EEbb
EeBb
Eebb
eb
EBeb
Ebeb
Beeb
eebb
Answer:
.
Explanation:
what is this?? umm-
A CD4 count that is below which amount classifies an infected person as having AIDS?
A 200 cells per mm3
B 800 cells per mm3
C 400 cells per mm3
D 600 cells per mm3
Answer:
A. 200 cells per mm3
Explanation:
Answer:
I hope this helps.
Explanation:
(Im in 4th but.. I need to ask this question.) The exchange of oxygen and carbon dioxide between plants and animals is called?
A.Photosynthesis?
B. Carbon dioxide-oxygen cycle?
C. Life cycle?
D. Pollination?
Answer:
B
Explanation:
A is making oxygen
C is life and death
D is making plants grow
Answer:
b because i did this like last week and i still Remember
Explanation:
imagine what happens if materials are not send out of the body from time to time ?
Explanation:
excretory system is present in human body which discharge out the waste material time to time. basically when a cell in a body breaks down they produce various waste material like carbohydrates eliminates carbon dioxide while digestive system eliminates through feces. any malfunctioning can cause serious problem like constipitation kidney failure and kidney stones
What are the environmental issues with using coal as a source of energy?
Answer The following with ᵒF and ᵒC.
Thank you if you answer this☺︎︎♡︎
This Question=15 points
I hope i am right
Explanation:
1. 20⁰F
-4⁰C
2.46⁰F
8⁰C
3.18⁰F
-8⁰c
Percey is studying the diagram shown here. the diagram is 1/4 of a larger diagram that explains the generic code. by studying the diagram Percey would be most likely to construct an answer to which of these questions
Answer:
fyjjngfhkuubbvff
Explanation:
bhjfffhjbvcfghbbvg
Help please! it’s urgent
ASAP Help Please!! Which of the described compounds is required for cheese making?
O Alcohol
O Sodium bicarbonate (baking soda)
O Lactic acid
Gluten
1. According to Model 1, in what type of organs are the cells that enter meiosis I found? 2. Considering what you already know about mitosis in cells, what event must take place during interphase before a cell proceeds to division? 3. What two structures make up a single replicated chromosome? 4. In Model 1, how many replicated chromosomes does the cell contain during prophase? 5. At which stage in meiosis I do the pairs of homologous chromosomes come together? 6. Once the chromosomes have formed a pair, what are they called?
Answer:
1.) Sex organs
2.) DNA replication
3.) Sister chromatids
4.) Two identical daughter cells
5.) Late prophase 1
6.) Tetrads
Explanation:
Meiosis is a type of cell division that occurs in living organisms which involves the division of a single cell to produce four cells containing half the original amount of the parent genetic information. An example of organs that enter meiosis is the SEX CELLS.
Mitosis is another type of cell division that leads to the production of two daughter cells which are genetically identical to the parent cell. During interphase before a cell proceeds to division, DNA replication must occur. This is a process DNA uses to make a copy of itself during cell division.
Chromosomes are genetic material which occurs in pairs known as the SISTER CHROMATIDS
PROPHASE in the stage the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells
During late prophase 1 the pairs of homologous chromosomes come together to form two chromosomes and four chromatids, with one chromosome originating from each parent.
Once the chromosomes have formed a pair they are called TETRADS
How do plants and humans help each other out?
Answer:
Photosynthesis and respiration are the two essential processes that allow life to sustain on earth. In a way, they are a cycle — plants help humans breathe by providing us with oxygen, and humans help plants "breathe" by providing them with carbon dioxide.
I hope it's helpful!
The density of a substance is 4.0 centimeters if a sample Of the substance Has a volume of 25 Centimeters then what is the mass
Brainly will be given
What raw materials (Reactants) are needed for respiration?
Options:
A: glucose and oxygen
B: water and carbon dioxide
C: water and glucose
D: water and oxygen
Explain how the fossil described above supports the idea of plate tectonics?
Answer:
Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together.
This distribution of fossils led to theories that the southern continents were once joined in a supercontinent called Gondwana.
Fossils tell us when and where plants and animals once existed. Some life "rode" on diverging plates, became isolated, and evolved into new species. Other life dispersed to new areas as continents reconnected, oceans narrowed, or chains of volcanic islands formed. Finding identical or similar fossils in areas separated by vast distances were some of the first clues that scientists used to reconstruct past plate movement. This distribution of fossils led to theories that the southern continents were once joined in a supercontinent called Gondwana.
How important is it for a cell to maintain the same number of chromosomes? Explain.
Answer:
It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.
Hope this helps you. Do mark me as brainliest.
Describe one density dependent factor and how it affects a population
Which trait is considered dominant?
HURRYYYY PLEASEEEEEE FASTTTT
which trait is considered dominant?
The trait that is hidden or covered up by the recessive trait.
The trait that is the most specific.
The trait that masks or covers up another trait and appears
any time its allele is present at least once in the gene pair.
The largest trait someone can have.
Answer:
D. The largest trait someone can have
Explanation:
This option makes the most sense to me because the dominant trait is the largest trait you can have, that is used the most often in your genetic code.
I hope it helps and is correct!
PLEASE PLEASE HELP
i don't get this and it's confusing
Yeah that looks hard good luck
How is DNA created?(short answer)
Explanation:
For a strand of DNA to form, nucleotides must be linked into chains, with the sugar phosphate groups alternating. DNA is made of the building block chemical called nucleotides. Nucleotides are made up of three main parts, a sugar group, a phosphate group, and some type of nitrogen base. Hope this answers, and is helpful! Have a great day! :))
Cells can be classified into two different categories: prokaryotic and
eukaryotic. Which of the following information is needed in order to
determine if an organism is prokaryotic?
Answer:
Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea. Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide.