Answer:
ecosystem
Explanation:
Only one that makes sense
Question 1- Name 2 ways that humans affect land ecosystems.
Oxygen crosses the cell membrane by
Answer:
diffusion
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ).
Explanation:
If you used a slingshot to launch a bowling ball and a baseball with the same force, which would go further? Explain your reasoning.
Answer: The baseball will go farther because of Newton's law. The more mass an object as, the more force needed to move it. The bowling ball has more mass than a baseball so more force is needed to move it.
Explanation:
A sedentary organism is one that can swim great distances in aquatic environments
A. True
B. False
Answer: i believe it is true
Explanation:
does the the cambrian explosion refer to a rapid increase in volcanic activity
2. Errors sometimes happen during DNA replication. If a DNA nucleotide that contains
guanine is accidently substituted for a DNA nucleotide that contains thymine, which of
the following will always happen because of the error in DNA replication?
Answer: the DNA polymerase enzymes will come in and fix the mistakes
Explanation:
The DNA can make two differnet erros a slicent mution or a mution that happenes to make an effect on the body. but before all that the DNA polymerase enzymes come in and fix most of the incorrectly inserted nucleotide
Your hand gets cold when you touch a chunk of ice. What kind of energy transfer is occurring?
Group of answer choices
Conduction
Convection
No energy transfer is occurring.
Radiation
Answer:
Conduction
Explanation:
Conduction is occurring as heat is being transferred through a direct touch. One example of conduction is a wooden spoon becoming hot after directly touching a hot pot.
Convection is more of a circulation motion of heat, and radiation is transfer through heat waves, such as sunlight.
I hope this helped! Let me know if you have any further questions :)
Which of the following are mixtures?
SELECT ALL THAT APPLY
a
sand
b tea
ws
C water
d
oxygen
e
copper
f
air
Answer:
air, oxygen, water, sand. and tea
Answer: Air, Sand, and Tea
Explanation:
The function of platelets is all of the following except:
A.they help form blood clots
B.they help a blood vessel repair itself •
C. they carry oxygen to injured areas of tissue
D. they secrete vasoconstrictors which promote vascular spasms
Answer:
C
Explanation:
They does not carry oxygen to injured areas of tissue
What is "crossing over" ?
Answer:
Crossing over is the substitution of genetic material in the germline. When egg and sperm cells, also known as meiosis, are formed, paired chromosomes are arranged from each relative in such a way that identical DNA chromosome sequences cross over each other.
Explanation:
Crossing resulting in genetic material shuffling is a significant cause of the genetic difference between descendants.
Someone pls answer thissssssssssssssssssssss
Answer:
See explanation
Explanation:
We know that the momentum of a body is defined as the product of mass and velocity of the body.
Let us now obtain the momentum for each item on the list;
Football player = 100 * 10 = 1000 Kgms-1
Skier = 60 * 20 = 1200 Kgms-1
Frog = 0.9 * 12 =10.8 Kgms-1
Meteorite = 0.1 * 1000 = 100Kgms-1
Base ball = 0.14 * 30 = 4.2 Kgms-1
Satellite = 3000 * 8000 = 24000000 Kgms-1
Steel ball = 2.0 * 2.8 = 5.6 Kgms-1
Look at the diagrams below. They show steps in the sequence of replication.
The steps of this sequence happen in what order? A)4,1,2,3 B)4,2,3,1 C)4,3,2,1 D)4,1,3,2
Answer:b
Explanation:
Answer:
D: 4,1,3,2
Explanation:
Decline of pollinators will have a severe impact on nature and mankind. why?
please answer and I will mark you as brainlist.
Answer:
Globally we are witnessing a decline in pollinators, such as wild bees, honeybees and hover flies, caused by the destruction and fragmentation of habitats, agricultural intensification and use of pesticides, introduction of novel diseases and competing alien species, and climate change
ERGENT DUE TODAY: a low pressure systym will arrive tomorrow the weather will be a hot and dry, b cold and dry, c warm and rainy, d cold and rainy
Answer:
its A hot and dry
Explanation:
im good at sci
Answer:
c warm and rainy
Explanation:
How would you classify an amoeba: animal-like, plant-like or fungus-like?
Why? (Support your answer with evidence).
Answer:
fungus like
Explanation:
it is a bacteria.
A__ forms when a volcano collapses in on itself.
Answer:
A caldera
Explanation:
This forms when a volcano collapses in on itself.
Have a nice day and hope this helps.
Answer:
A caldera forms
Explanation:
A single change in the
DNA of the hemoglobin gene will cause
Answer:
A “mutation” changes the instructions of a gene, which can also change the protein. Sometimes this change makes it so the protein can't do its job as well. And this is what happens with sickle cell anemia. A mutation in the hemoglobin gene changes the hemoglobin protein in a way that causes sickle cell anemia.
Determine a relationship between the x- and y-values. Write an equation.
Х
1
-3
2
-8
у
3 4
-18
13
Answer:y = y = -5x + 2
Explanation:
Y = (y2-y1)(x2-x1) x + b = mx + b (b is the y-intercept)
= (-8+3)/(2-1)x + b = -5x + b
to find b
when x = 0, y=b = 2
(could draw graph to make clear)
this is a straight line: the slope shows that for any x0, y1 = y0 - 5
Meat sharing can be considered an example of cooperation among primates. Which of the following is NOT a cooperative behavior observed among primates?
a. warning calls
b. nut cracking
c. grooming
d. group hunting
e. caring for a subadult by someone other than the mother
Answer:
e.
Explanation:
The correct answer would be caring for a subadult by someone other than the mother.
Cooperation or cooperative actions are those actions that are carried out by two or more individuals in order to achieve a common goal or goals.
Warning calls are carried out by one or two individuals in order to warn those around of a particular danger. Nut cracking among primates requires the collective efforts of many individuals. Grooming is a social behavior among primates that requires the cleaning up and maintenance of boy hygiene of an individual by another individual. Group hunting involves the collective efforts of a group of primates.
The only option that does not require cooperation is caring for a subadult by someone other than the mother.
The correct option is e.
What is the region of rapid cell division (growth) in plants with a process known as mitosis?
Please help
Explanation:
They grow through a combination of cell growth and cell division (mitosis). The key plant growth is meristemn, a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate. Meristem allows plant stems and roots to grow longer (primary growth) and wider ( secondary growth ).
What is actually cycled in a web of organisms?
Answer:
Carbondioxide gas.
Explanation:
Carbondioxide gas is actually cycled in a web of organisms, The plants takes carbondioxide gas for the process of photosynthesis, this plant is eaten by herbivores for energy and carbondioxide is released in the process of respiration. After that, carnivores feed on these herbivores and oxygen is used in the breakdown of food for releasing energy and carbondioxide gas is also released from the body through breathing so the cycle of carbondioxide gas is continue.
Summary how the fast carbon cycle works?
Answer:
here is your answerExplanation:
Any change in the cycle that shifts carbon out of one reservoir puts more carbon in the other reservoirs. Changes that put carbon gases into the atmosphere result in warmer temperatures on Earth. This diagram of the fast carbon cycle shows the movement of carbon between land, atmosphere, and oceans.In which choices are the entries listed from largest to smallest
A: gene-cell-DNA-building block
B: chromosome-genome-DNA building block
C: genome-gene-nucleotide base
D:DNA building block-gene-chromosome-genome
Which of the following best matches a part of a living cell with the function it performs?
Cytoplasm: green structure inside plant cells
Nucleus: green structure inside plant cells
Cytoplasm: directs all of the cell's activities
Nucleus: directs all of the cell's activities
Answer:
Nucleus: directs all of the cells activities
=~
Explanation:
I took the exam and its correct!! I take FLVS this is the 4.00 Pretest or 4.01 for science right? Any who I got it right so go get em babes!!
___________ It is a process in producing garden soil that will remove unwanted particles
to be a part of the garden soil. write your answers in small letters.
Answer:
Adding organic matter or growing cover crops
Explanation:
Adding organic matter or growing cover crops in the form of aged manure to the soil is a process used in producing garden soil and this is because not only will the compost make the land good and fertile it will also makes the garden soil friable unlike the application of fertilizer
I Using the key choices, identify the cell type(s) or blood elements that fit the following descriptions. Insert the correct term or letter response in the spaces provided. Key Choices A. Red blood cell D. Basophil G. Lymphocyte B. Megakaryocyte E. Monocyte H. Formed elements C. Eosinophil F. Neutrophil I. Plasma _________________________ 1. Most numerous leukocyte _________________________ 2. ___________________ 3. ___________________ 4. Granular leukocytes _________________________ 5. Also called an erythrocyte; anucleate _________________________ 6. _________________________ 7. Actively phagocytic leukocytes _________________________ 8. _________________________ 9. Agranular leukocytes _________________________10. Fragments to form platelets _________________________ 11. (A) through (G) are examples of these _________________________12. Increases during parasite attacks _________________________13. Releases histamine during inflammatory reactions _________________________14. After originating in bone marrow, may be formed in lymphoid tissue _________________________15. Contains hemoglobin _________________________16. Primarily water, noncellular; the fluid matrix of blood _________________________17. Increases in number during prolonged infections _________________________18. Least numerous leukocyte
Answer:
NeutrophilNeutrophilEosinophilBasophilRed blood cellMonocyteNeutrophilMonocyte LymphocyteMegakaryocyteFormed elementsEosinophilBasophilLymphocyteRed blood cellPlasmaMonocyteBasophilExplanation:
A. Red blood cell: Blood cell that is a product of the medulla. These cells contain hemoglobin that carries oxygen from the lungs to the rest of the body.
B. Megakaryocyte: Big cell easy to recognize for its size. Differs from other cells for being polyploid, growing by endomitosis, and being bigger. They have important biological functions. The most important one is the formation of plaquettes, necessary for hemostasia, damaged vessels reparation, and tissue healing.
C. Eosinophil: Granulosites. Immune System cells, active during infections, pathologies, inflammations, and allergies. Originated in the medulla and transported to the blood and organs. One of their functions is to defend the organisms from parasite infections, helping to destroy the pathogen.
D. Basophil: Granulosites. Immune System cells. in the medulla and transported to the blood. Only when there are parasite infections they can be present in tissues and organs. They release substances such as histamine that make possible the inflammatory process.
E. Monocyte: Agranulocyte phagocyte. Originated in the medulla and transported to the rest of the body. They differentiate into macrophages in tissues. They defend the body from bacteria and viruses. When monocyte values are elevated, usually means that there is an important process of infection.
F. Neutrophil: Phagocytic Leucocytes polymorphonuclear found in the peripheric blood. Compose the first defense line against bacterial and fungal infections. Product of the medulla and transported to the blood. They are the first to arrive at the affected tissue, followed by lymphocytes and macrophages.
G. Lymphocyte: Leucocyte. There are two types of lymphocytes: B cells, which can produce antibodies in the presence of bacteria, viruses, and toxins. T cells can destroy infected cells from the body. They all circulate in the blood.
H. Formed elements: Elements that might be found suspended in the plasma. These include all the mentioned cells and cell fragments
I. Plasma: Transparent, acellular, and kind of yellow liquid that represents 55% of the blood volume.
Help plzzzzzz I need helppp
Jorge wants to model two processes from the water cycle in the atmosphere for a class project. He began to fill a self-sealed bag half full of water. After sealing it, he tapped it into the window. After a few hours, water beaded along the sides of the bag. Which processes are represented by Jorge's model?
A.transpiration and respiration
b.respiration and evaporation
c.evaporation and condensation
d. condensation and crystallization
Marsha and Meghan drive to St. Louis to attend a Cardinals baseball game. Once inside the stadium, they decide to start drinking beer. After a few innings the young women find themselves frequently having to use the restroom, much to the annoyance of the other fans sitting around them that have to let them pass each time.
Required:
a. What hormone does the alcohol Marsha and Meghan are drinking appear to be inhibiting?
b. What is the normal action of this hormone?
Answer:
a.The alcohol is inhibiting the vasopressin hormone, also known as antidiuretic hormone (ADH).
b.The vasopressin hormone makes us retain water in our kidneys to maintain adequate water levels in our body and expel the right amount of water and other products in the urine.
Explanation:
When we drink alcohol, we inhibit the antidiuretic hormone(ADH), also called vasopressin hormone. It is responsible for the retention of water in our kidneys to absorb the products that are there. Also, it keeps the body with the right levels of liquid. If we drink alcohol, we inhibit the ADH, so we would not retain water, and as a result, we will produce more urine, which leads us to urinate more often. The consequence of this excessive loss of water is dehydration.
4
At what trophic level do decomposers obtain their energy?