Answer:
Be happy
Explanation:
Its okay to fail
which answer is correct?
1)the effector
2)receptors
3)the spinal cord
4)the conscious part of the brain
5) neurones
Answer:
4
Explanation:
POSSIBLE POINTS
A part of the circulatory system allows the exchange of water, oxygen, nutrients, and waste between the blood and surrounding
tissues. Which part of the circulatory system is described. ?
Answer:
rough ER → ER-to-Golgi transport vesicles → Golgi cisternae → secretory or transport vesicles → cell surface (exocytosis)
Explanation:
How does the formation of sea ice impact the density of the surrounding seawater?
A. The formation of sea ice removes freshwater and dissolved solids from seawater, leading to an increase in density.
B. The formation of sea ice removes freshwater, leaving dissolved solids behind and decreasing the density of seawater.
C. The formation of sea ice removes freshwater and dissolved solids from seawater, leading to a decrease in density.
D. The formation of sea ice removes freshwater, leaving dissolved solids behind and increasing the density of seawater.
The formation of sea ice removes freshwater and dissolved solids from seawater, leading to a decrease in density. The correct option is C.
What is salinity?The concentration levels of salts in water or soils are referred to as "salinity."
Salinity is classified into three types based on its cause: primary salinity (also known as innate salinity), secondary salinity (also known as dryland salinity), and supplementary salinity (also called irrigation salinity).
When the water table rises, natural salts rise to the surface; in sufficient quantities, these salts become toxic to most plants.
As a result, the surrounding seawater becomes saltier because salt is left behind when sea ice forms.
As seawater becomes saltier, its density rises and it begins to sink. Surface water is drawn in to replace sinking water, which eventually cools and salts enough to sink.
Thus, the correct option is C.
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if a sample contains 20g of an isotope that has a half life of 1000 years how much will be left after 2000 years
After 2000 years, there will be 5g of the isotope remaining.
What is an isotope?If an isotope has a half-life of 1000 years, it means that after 1000 years, half of the original sample will have decayed. After another 1000 years (2000 years total), half of the remaining sample will have decayed, and so on.
To calculate how much of the sample will be left after 2000 years, we can use the following formula:
[tex]N = N_{0} * (1/2)^ (t/T)[/tex]
where:
N = the amount of the isotope remaining after time t
N0 = the initial amount of the isotope
t = the time that has elapsed
T = the half-life of the isotope
Plugging in the values from the problem, we get:
N = 20g * (1/2)^(2000/1000)
N = 20g * (1/2)^2
N = 20g * 1/4
N = 5g
Therefore, after 2000 years, there will be 5g of the isotope remaining.
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Which organelle aids in the maintenance of cell homeostasis by selectively regulating The passage of materials into and out of the cell?
A. Plasma membrane
B. Lysosome
C. Ribosome
D. Nuclear membrane
Answer: Plasma Membrane.
Explanation:
Plasma membrane controls what goes in and out of the cell and maintains a stable internal environment.
Lysosomes breaks down dead stuff and can program the cell death.
Ribosomes create proteins.
List which cell has the listed characteristics
1 Extensions
2 Matrix
3 No nucleus
4 Striated
5 Used in the immune system.
Which of the following is the proper order of the Linnaean system of classification starting at the most specific and moving up?
species, genus, family, order, class, kingdom, phylum
genus, species, order, family, class, phylum, kingdom
species, genus, family, order, class, phylum, kingdom
Species, genus, order, class, family, phylum, kingdom
2. Which blood type would you have if antibodies A and B were made during your first year of life?
Answer: the possible possibilities are 3 if u have an A and B type of antibodies.
Explanation:
it can be -- AO or AB or BO
plus factor will depend upon enzyme presence.
If a person is having both anti-A and anti-B antibodies in blood then the possible blood group of that individual can be O. However, Rh factor cannot be determined by this information.
What is Blood Group?Blood grouping is the system of classification of blood on the basis of antibodies and antigens in blood which are inherited substances present on the surface of the red blood cells.
Blood groups are classified into four types. These are A, B, AB and O. Blood group A has antigens A on the RBCs with anti-B antibodies present in the plasma. Blood group B has B antigens on RBCs with anti-A antibodies in the plasma. Blood group O has no antigens on the membrane of RBCs and antibodies of both types anti-A and anti-B antibodies in the plasma. Blood group AB has both A and B antigens, but no antibodies in the plasma.
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turn TACCATCGATTGGAA to a RNA sequel
The RNA sequence is:
AUG GUA GCU AAC CUU
I don’t understand biology at all and I am worried about how to pass biology . Does anyone have study tips for biology or anyways that can help me relearn everything
Answer:
Biology is not a hard class however it does require memorization and comprehension of certain topics. I recommend that you read over the chapters and make flashcards and test yourself. You can also ask your teacher for help. There are many videos available that do a great job at explaining each topic in biology. In addition, there are various websites that can also provide information. You should make study groups with your classmates as it is a more fun and effective way of studying.
Answer:
Firstly, don't stress, you'll get through it. Worrying will just slow you down, and learn Biology as something you get to do, and not a chore.
And if you want to relearn everything from the beginning, then I would recommend Crash Course's free Biology courses on YT, they also have Chemistry courses and everything. You can also go to Ask a Biologist, where you can do more than just ask questions.
There are so many more sources of information and everything, but one thing is; don't stress, that's the key.
Good luck, stay safe and healthy.
You'll get through it! Don't worry. If you want me to recommend more websites to you, just comment on this answer :D
The plasma membrane is selectively permeable. It allows some substances to enter and leave the cell unrestricted while others are restricted. Some toxins produced by certain bacteria cross the plasma membrane, interfering with normal chemical reactions, and ultimately killing the affected cell. Why are cells unable to stop the flood of these harmful substances into the cell
Answer:
There are specific receptors present on the surface of the normal cell membrane to recognize the molecules to allow them to pass or not. Most of the bacterial toxin are water-soluble molecules, and bound to the cell surface and interact with them as some time antibody-antigen interaction or cell recognition does not occur that form a pore in the cell membrane and toxins move into the cell.
Once toxins enter the cell they attack intracellular targets through endocytic vesicles. Ultimately these ends in cell death.
The cells are not able to stop the flow of the mentioned harmful substances into the cell as they fail to recognize them as foreign entities. These foreign toxins have intracellular targets with which they bind and lead to death of the cell.
Cell death due to foreign toxins:The plasma membrane is formed of lipids. The toxins produced by the bacterial cells are water soluble. Therefore, they identify particular receptors on the membrane and associate with them. Thus, cell at certain occasions fail to identify them as foreign entities.
They combine with the plasma membrane of the cell and induce pore formation, however, there are many toxins that invade the cell and possess intracellular targets via endocytic vesicles. With the help of these vesicles, they deliver their enzymatic domain into the cytosol and results in the death of the cell by obstructing the metabolism of the cell.
Thus, cells fail to identify the bacterial toxins as foreign entities and they invade the cell and results in cell death.
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2. Which 2 organelles are found in BOTH plants and animals? *
Answer:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Explanation:
Helpppp meeeeeee plssss
Answer:
ok
Explanation:
ok thats the answer
A woman of childbearing years who is not pregnant has _______ absorption rate of calcium as compared to a woman who is pregnant
Answer:
The correct answer is - lower
Explanation:
Pregnant women require an increased amount of calcium as it can provide a sufficient amount of calcium for herself and her fetuses. During lactation, the calcium is reabsorbed very fast and rapidly that supplies the calcium for the milk. So, the normal women of childbearing age do not require the amount of calcium as pregnant women require.
Thus, there is a lower absorption rate of calcium as compared to a pregnant women
Blood, muscle, and bone cells are examples of _____.
plant cells
specialized cells
organs
tissues
Answer:
specialized cells
Explanation:
All of those cells are types of specialized cells. They are cell specifically designed for a specific job.
{ pls help me brainiest }
Which type of sensory receptors monitor position and movement of the body?
A. Photoreceptors
B. Chemoreceptors
C. Proprioceptors
D. Exteroceptors
Answer:
C. Proprioceptors
Explanation:
Firstly option A. Photoreceptors - Is responsible for our vision and is a subcategory for option D. Exteroceptors.
External receptors that respond to stimuli from outside the body are called exteroceptors.
Option C. is the correct answer because Proprioceptors is the sense of self-movement and body position. It sometimes may also be referred to as our sixth sense.
Hope this Helps :)
Which type of fossil appears as a “black painting” on a rock?
Answer: carbon film
Explanation: this answer is 100% right I’m staring at the answer on my test right now
4. Which is a factor that keeps Earth in orbit around
the Sun?
A. the gravitational pull of the Sun
B. the orbital path of the moon
C. the continuous motion of the universe
D. Earth's changing speed and direction
Answer: A. the gravitational pull of the Sun
The sun is providing a centripetal force pulling the earth inward toward the sun. At the same time, the inertia of the earth is making it want to move forward in a straight line. The two forces work together to create the net effect of the earth orbiting around the sun. Other planets, moons, asteroids, and celestial objects exert gravitational forces on the earth as well, but nowhere near the amount of what the sun does.
 If a translation of (x, y) → (x + 6, y – 10) is applied to figure ABCD, what are the coordinates of D'? (–5, –2) (1, –12) (4, –15) (–9, –6)
Answer:1,-12
Explanation:
Answer:b
Explanation:
WILL MARK YOU!!! HELP!
Where does sugar enter the blood?
Answer:
When the stomach digests sugar it turns into glucose. Glucose is then processed in the stomach and small intestines rather absorbed and then released into the bloodstream.
Explanation:
Question 5
1 pts
What organelle of a cell has the genetic information?
O Vacuole
O Mitochondria
Chloroplast
O Nedeus
Answer:
nucleas
Explanation:
PLS HELP ILL MARK BRAINLIEST !!!!
in unicellular organisms, what makes up the organism
Answer:
Unicellular organisms include bacteria, protists, and yeast.
Explanation:
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#teamtrees
Please support the cause. If we all plant a tree, just 1 each, even 1 per family, it will save us from the future that global warming will bring us without these trees. plant a tree today and say to yourself, "wow i just planted a tree for a very important cause, and i saved someone's life today!"
===================================================================
Answer: So tlm ( Trees lifes matter) alr aye!!!!!!!
Explanation:
PLEASE HELP ME WITH THIS AND HURRY WILL MARK AS BRANLIEST!!!!!! Why do leaves change color in the fall? Research this phenomenon and write a two-page report describing what happens. Be sure to include an introduction and a conclusion to your report. Use the information you have learned in this lesson about chlorophyll, the green plant pigment, and its role in photosynthesis to help you explain what happens in the fall.
Answer:
Leaves are always the color they turn in the fall
Explanation:
The chlorophyll created when the leaves use sunlight to create energy for the tree has a green pigment that covers the leaves actual colors. As the leaves separate from the trees they stop making chlorophyll, thus allowing the leaves true colors to return.
I hope this helps and good luck on that two-pager!
Answer:
During the fall the day gets shorter hence less sunlight this results to leaves stopping their food making process. The chlorophyll breaks down, the green color disappears and the yellow to orange color becomes visible
Explanation:
Stating the consequences of drug use is a resistance strategy that can involve __________. A. explaining why the drug is harmful for you B. explaining possible negative side effects of the drug C. explaining how your life might negatively change if you began taking the drug D. all of the above Please select the best answer from the choices provided. A B C D Mark this and return
Answer:
D. all of the above
Explanation:
It is all of them. When we are explaining to someone the consequences of taking a certain drug we can start by explaining to them why the drug in question is harmful to them. Will it ruin their body, their health or others. The drug may have some negative effects that we also need to explain. Telling them how it will ruin their life or their family if they start to take the drug.
Read the information for transcription and then answer the question.
Protein Synthesis
Explain the process of transcription
Answer:
Protein synthesis is the process which synthesizes proteins by the information coded in the DNA molecule with the help of two distinct process takes place in order namely transcription and translation.
Transcription is the first process of the central dogma or the protein synthesis that produces mRNA molecule that carries all the information stored in the DNA molecule out of the nucleus (in eukaryotes only) to the ribosome where the second process Translation takes place.
Untwists then unzips of DNA molecule is catalyzed by RNA polymerase result in the Hydrogen-bonds between the strands break .
Creates complementary base pairs with bases of the DNA strand with help of free RNA nucleotides
weak hydrogen bonds and sugar-phosphate bonds form between base pairs and RNA nucleotides respectively
mRNA strand is synthesized and peels off the DNA and transported or pass from the nucleus to cytoplasm
Answer:
Transcription converts
*DNA
*mRNA
*Nucleus
*Cell
in this order
Explanation:
A complete living thing, for example
a rabbit or an oak tree, is
A. a biome.
B. an organelle.
C. an organism.
D. a population.
Lihts Reserve
Answer:
C
Explanation:
a single living thing is an organism
PLEASE JUST HELP YALL
A change in which of the following is least likely to impact primary productivity?
A. Nitrate
B. Dissolved oxygen levels
C. Dissolved carbon dioxide levels
D. Phosphate
Answer:
its C just did the test pennfoster :)