The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.
Water is warmed by the sun and cooled by night . It is then cooled and _____
Answer:
Frozen
Explanation:
When it heats up water evaporates and when it's cold it does the opposite, it freezes because of the low temperature.
Which two systems below work together to rid the body of harmful parasites?
skeletal and circulatory systems
immune and lymphatic systems
muscular and nervous systems
respiratory and immune systems
Answer:
Immune and Lymphatic Systems
Explanation:
The controls the materials that enter and
leave the cell.
what solution, (hypertonic, hypotonic, isotonic) would make osmosis go faster?
Answer:
Explanation:
Osmosis is the movement of WATER molecules across a semipermeable membrane (such as the cell membrane) from where there is a high concentration of water to where there is a low concentration of water. The interior of a living cell consists of cytoplasm, which is a solution of mostly water with dissolved substances such as salt.
Now for the fun stuff! An Isotonic solution is a solution that has the same concentration of dissolved substances as is found inside the cell. If a cell is surrounded by isotonic solution, then there is no net movement of water across the membrane by osmosis, because the concentration of water is the same on both sides of the membrane.
A hypertonic solution is a solution with a higher concentration of dissolved substances than is found inside the cell. If a cell is surrounded by hypertonic solution, then water will move OUT of the cell by osmosis because there is a higher concentration of water inside the cell compared to outside (where there is lots of dissolved salt, etc.) A cell in hypertonic solution will shrink.
A hypotonic solution is a solution with a lower concentration of dissolved substances than is found inside the cell. If a cell is surrounded by hypotonic solution, then water will move INTO the cell by osmosis because there is a higher concentration of water outside the cell compared to inside. A cell in hypotonic solution will swell up and, if there is no cell wall, may burst. A silly but simple way to remember that water moves into a cell in hypotonic solution is that "hypo causes the cell to swell up like a hippo"
is the bladderwrack ficus gardneri endangered?
Marine Bio.
Answer: Chromista
Explanation:
which important event in meiosis occurs during prophase?
Answer:
Crossing over
Explanation:
for variations which is one of the most important characteristic for Meosis
What is an angiosperm? Provide 2 examples. PLEASEE
Answer: Angiosperms represent approximately 80 percent of all known living green plants. Examples range from the common dandelion to ancient flowers such as magnolias. Angiosperms also make up the vast majority of all plant foods we eat. (Ex. grains, vegetables, and fruits.) The angiosperms are vascular seed plants in which the ovule (egg) is fertilized and develops into a seed in an enclosed hollow ovary The ovary itself is usually enclosed in a flower, that part of the angiospermous plant that contains the male or female reproductive organs or both. fruits are derived from the maturing floral organs of the angiospermous plant and are therefore characteristic of angiosperms.
Explanation: ^
The separation of the colors occurs because each different ____ of light ______, or bends a different amount
A frequency, wavelength
B wavelength, reflects
C wavelength, refracts
ill give brainlietst and 50 points
Drag each tile to the correct location on the chart.
Determine whether each statement describes mitosis, meiosis, or both mitosis and meiosis.
Answer:
DNA replicates in both mitosis and meiosis, Mitosis occurs during growth and development, In meiosis the number of chromosomes reduce by half, Mitosis occurs in all organisms, Meiosis occurs in organisms that sexually reproduce, and chromosomes stay the same in Mitosis.
Explanation:
Mitosis: Occurs during growth and development, Occurs in all organisms, and The number of chromosomes remains the same
Meosis: The number of chromosomes reduces by half, and Occurs in organisms that sexually reproduce
Both: The DNA is replicated.
1. The DNA is replicated: Both Mitosis and Meiosis. In both processes, DNA replication occurs before the division of cells, ensuring that each daughter cell receives a complete set of genetic information.
2. Occurs during growth and development: Mitosis is the process responsible for the growth, repair, and development of multicellular organisms by producing identical daughter cells.
3. The number of chromosomes reduces by half: Meiosis involves two divisions that result in the reduction of chromosome number by half, leading to the formation of gametes (sperm and egg cells) with half the usual number of chromosomes.
4. Occurs in all organisms: Mitosis is a fundamental process occurring in various organisms, ranging from unicellular to multicellular, for growth, tissue maintenance, and asexual reproduction.
5. The number of chromosomes remains the same: In mitosis, the daughter cells have the same number of chromosomes as the parent cell, maintaining the chromosome count.
6. Occurs in organisms that sexually reproduce: Meiosis is specific to organisms that reproduce sexually, as it produces genetically diverse gametes that contribute to the variability of offspring.
Know more about chromosomes:
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which zone in the ocean contains enough light for photosynthesis?
Answer:
The euphotic zone
The euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur.
Suppose two leaf-eating species of animals live in a habitat where there is a severe drought and many plants die as a result. Which term describes the kind of relationship the two species probably will have?.
Competition is the kind of relationship these two leaf eating species of
animals will have.
Competition involves organisms vying for resources such as food, sunlight,
space etc in the ecosystem. The two leaf eating animal species are in
competition with each other for plant leaves.
When drought occurs and the leaves reduces, competition for food
increases in which the fittest survive and the less fit ones die from starvation.
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HELP PLS!!!!!!!!!!!!
Beaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following is not a common type of pathogen at the beach?
Bacteria
Protozoa
Viruses
Worms
ALL these microorganisms can represent common types of pathogens at the beach. In consequence, it is imperative to take precaution measures to avoid infections.
The sand at the beach may contain dog feces, which is known to transport Toxocara canis, a parasite roundworm able to infect humans.
Moreover, samples of beach sand may also contain different types of pathogenic bacteria (e.g., Staphylococcus species, E. coli, Enterobacteriacea, etc) and viruses (e.g., enteroviruses, hepatitis A, Norwalk viruses, reoviruses, rotaviruses, etc).
In consequence, it is imperative to wash hands with soap and water when touching beach sand that is suspected to be contaminated.
Finally, marine water may also be contaminated with different zoonotic protozoa such as, among others, Giardia, Cryptosporidium and Toxoplasma.
Learn more in:
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Answer:
The correct answer is worms.
Explanation:
Yes, all of these can be found at the beach, but worms are not common. Also, I took the test lol!
what does thermohaline circulation have in common with coastal upwelling
Answer:
Coastal upwelling is the process by which strong winds blow down the coasts of continents and, in conjunction with the earth's rotation, cause the surface waters to be pushed offshore. Water from the ocean depths is then pulled up - or upwelled - to the surface to take its place
How long do scientists estimate that the sea has been at its current level?
250 years
2,500 years
25,000 years
250,000 years
Answer:
250,000
Explanation:
Answer:
A. 250 years
Explanation:
NASA measures sea level around the globe using satellites. The Jason-3 satellite uses radio waves and other instruments to measure the height of the ocean's surface – also known as sea level. It does this for the entire Earth every 10 days, studying how global sea level is changing over time.
How many chromosomes will there be in a human zygote?
please help :( How are the steps of cellular respiration different when it is anaerobic respiration?
Answer: HEYYYY also if I’m correct anaerobic respiration doesn’t need oxygen maybe I’m wrong id.k
Explanation:
Given the following strand of DNA, what is the complementary (second) strand of DNA?
CGT-GAT-CAG
Answer:
If i remeber correctly it would be CAG or CGT
Explanation:
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What is a polar molecule?
Answer:
a polar molecule is a molecule that has a charge on one side of the molecule, that is not cancelled out.
Explanation:
i hope this helps you!
Answer: a molecule that has both positive and negative ions
Explanation: a water molecule has an oxygen element and 2 hydrogen elements the oxygen is a negative ion and the hydrogen ions are positive
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Answer:
ddddddddddddddddddd
Explanation:
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a condition in which the number of red cells or the amount of hemoglobin is below normal
Answer:
The condition is anemia.
Explanation:
Anemia is a medical condition in which the red blood cell count or the hemoglobin is less than normal.
Please select the word from the list that best fits the definition
Preserved animal tracks are called ______ fossils.
Answer:
A Trace Fossil
Explanation:
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Trace fossils
Trace fossils include footprints, trails, burrows, feeding marks, and resting marks. Trace fossils provide information about the organism that is not revealed by body fossils.
An organism's genotype is (1 point)
Answer:
an organism's complete set of genes.
Explanation:
Below is an image of a family tree (first generation) showing a group of mice. A dark gray mouse and a white mouse had four offspring, some had white fur, while others had dark gray fur. Use the image below to help you answer the following questions. Which of the following descriptions about the parents is most likely true?
A Their gene combinations for the fur color trait are the same.
B Their gene combinations for the fur color trait are different.
C Their gene combinations for the fur color trait depend solely on the environment.
D Their gene combinations for the fur color trait do not affect their offspring.
Answer:
I believe the answer is B.
people who have come back from being legally declared dead. what was your experience
my friend told me that one his friend uncles was in a car crash not in a bad one but it did send his uncle flying it hit his head and there was alot of blood people thought he was dead but after like a few hours in the doctor he just opened his eyes but still couldnt move
Sucrose is an organic compound made by plants for quick energy.
What type of organic compound is sucrose?
protein
carbohydrate
lipid
nucleic acid
Answer:
it's a carbohydrate
Explanation:
Sucrose (which is known as a table sugar) is a very common disaccharide, which is made up of the monomers glucose and fructose.
Nohxjxjxjjxjxjxjjxjdkd
Answer:
yes
Explanation:
What best explains the relationship between photosynthesis
Оа
The higher the rate of formation of products in respiration, the lower the rate of photosynthesis.
Photosynthesis depends on the carbon dioxide released during cellular respiration.
Ob
О с
C
Cellular respiration depends on the water released during photosynthesis.
C
They have the same set of product molecules,
Answer:
I think it's the last one! "They have the same set of product molecules"
Explanation:
Photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses that oxygen to release energy from food.
Explain the correlation between solar radiation and kelp biomass .
Answer:
icicles icicles icon DM irks an ignitor
Can someone help me with my living earth homework
Oxygen is made during photosynthesis. (True or False)
Answer:
True
Explanation:
True