Answer:
Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs:
oxygen moves down a concentration gradient from the air in the alveoli to the blood.carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.Answer:
oxygen moves down a concentration gradient from the air in the alveoli to the blood.
carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.
Explanation:
please answer this question asap!!!!
Answer:
The 2ND one and the 4th one I'm pretty sure
The region around a star where sunlight is strong enough to enable photosynthesis and keep water on the surface of a planet liquid is called what?
Summarize how atmospheric pollution affects living organisms and the environment by completing the chart below:
Answer:
when accur pollution is affect all living things include all living things
Explanation:
when happened atmospheric pollution the all life cycle is end even soil property
I mark you brainiest just please answer this question for me please
Answer:
It is C, To fill the space between the cell membrane and the nucleus.
Explanation:
I hope this helps! Have a great rest of your day!
The allele of the human transport protein associated with light skin is found almost exclusively in people with European ancestry. The other common allele for darker skin, which appears to be the ancestral allele, is found in people with African ancestry. What is a plausible explanation for how the lighter-skin allele came to be so common in those with European ancestry
Answer:
See Explanation
Explanation:
Darwin's theory of natural selection has it that organisms that are better adapted to their environment happen to survive and reproduce passing on their favorable characteristics to their offspring.
It must have been that a gene mutation occurred in the ancestors of the Europeans which led to the appearance of the allele for lighter skin.
This trait became favorable in their environment and people that had it were able to survive and pass the trait on to their offspring hence it became predominant throughout the population.
A.GL, Gl, gL, gl
B.GG, Gg. LL, Ll
C.GL, Gl
D.GG, Ll
Answer:
GL Gl gL gl
Explanation:
Why do we use pH and the pH scale?
Answer:
We use pH as a measurement of how acidic something is. pH scale is what we use to determine how acidic it is. i tried hope it helps:)
Explanation:
Which is true of both photosynthesis and aerobic respiration?
A. Sugars are formed
B. Both take up carbon dioxide
C. They require enzymes
D. Oxygen is a reactant
E. Oxygen is a product
Answer:
The answer is C
Explanation:
For answer A, only aerobic respiration can form sugar, photosynthesis forms ATP. Answer B, only photosynthesis takes up carbon dioxide, aerobic respiration takes up oxygen. Answer D, oxygen is a reactant only during aerobic respiration. Answer E, oxygen is only one of the product of photosynthesis, not aerobic respiration❤️
Hope this will help~Have a good day
5. Why is the ileum long and coiled?
Answer:
The huge length gives an adequate opportunity to the body to process the food and concentrate greatest sustenance while the various finger-like projections called villi alongside miniature villi increment the surface region for assimilation.
Explanation:
I hope this helps u! :D
Which of these is NOT a reason organisms migrate?
A reproduction
B warmer temperatures
C higher availability of food to find more
Is there supposed to be another answer choice?
what are the differences between ligaments & tendons
Which statement accurately describes the levels of organization?
A. A group of cells that work together to perform a common function is called an organ,
B. A group of tissues that work together to perform a common function is called an organ,
C. A group of tissues that work together to perform a common function is called a cell,
Activity
Dana
Tyne here
Answer:B. A group of tissues that work together to perform a common function is called an organ,
Explanation:
Someone suggested that everything to be sent to the base on the moon must be sterelized so that no bacteria of any kind are present.Do you think this is a good idea
Answer:
Yes.
Explanation:
Yes, it is a good idea by sterilizing everything because this sterilization process kills bacteria or other harmful microbes on the items and no chance of bacterial infection occurs in the base that is present on the moon. This sterilization process is very important in order to make the health of the crew members and scientists that lives in the base on the moon. If the bacteria or other harmful microbes enters in the base so its maintained environment will triggers its growth and infections in the humans so it is a good idea.
What would be a possible disadvantage of asexual reproduction?
A Ability to reproduce in the absence of a mate
Results in low genetic variation of the species
с Allows for more genetic variation in the offspring
D Takes less time to produce offspring
Answer:
B
Explanation:
3 examples of radioactive dating?
Answer:
Uranium 238
Potassium 40
Rubidium 87
Explanation:
what process causes stem cells to become immune system cells,then some immune system cells to become antibodies?
10. are a type of producer found in aquatic environments. In a particular lake, the phytoplankton have begun to
reproduce much more rapidly and grow much faster, causing a green "bloom” to cover the whole surface of the
lake. Which of the following is the most likely cause of this bloom"?
Answer: I think that it would be C because blooms are due to eutrophication, which means that there are high levels of phosphate in the water. Phosphate is a main ingredient in pesticides, which can run-off into rivers.
In the mouse model of malaria, the researchers injected Plasmodium-infected human red blood cells into the mice because the Plasmodium species had surface ligand proteins that bound only to cell membrane proteins of human red blood cells. Assume that the researchers noticed that some of the parasites no longer infected human red blood cells but instead infected mouse red blood cells. Predict the most likely cause of this change in the host specificity of the parasites. Plasmodium reproduces both sexually in the host vertebrate and asexually in mosquitoes. The researchers claim that the Plasmodium organisms that infect the two different types of red blood cells are likely to evolve into two separate species of Plasmodium. Based on the biological species concept, provide reasoning that would support the researchers’ claim.
What happens to the distance between waves Wave lengths 
How can independent assortment help explain genetic diversity in humans? Hint: How many pairs of chromosomes are in a human diploid cell?
Answer:
please give me brainlist and follow
Explanation:
Independent assortment states that all alleles are inherited independently of other alleles. This helps diversity because it helps to further the randomization of traits. If traits were always inherited together, as a "package deal", there would naturally be less diversity than the situation that exists.
Question 2 of 25 Which feature of a balanced chemical equation demonstrates the law of conservation of mass? A. It shows the reactants of a chemical reaction to the left of the reaction arrow. B. It has the same types of atoms on both sides of the reaction arrow. C. It has coefficients to show how much of each substance a chemical reaction uses. D. It shows the products of a chemical reaction to the right of the reaction arrow
Answer:
b or c
Explanation:
I can't tell
blc
b.tells more like mass after reaction and before reaction are same blc atoms are equal
more like b
Answer: B. It has the same types of atoms on both sides of the reaction arrow.
what are some causes of illegal fishing
Answer:
Lax regulatory systems in the issuance of fishing permits. ...
Lack of enough funds or resources for surveillance and tracking. ...
Economic and social circumstances. ...
Lack of proper supervising, control and surveillance activities. ...
Please Helpppp!!!!!????
Answer:
First a glucose molecule enters the body cell, and then a glucose molecule is broken down in the cytoplasm. Then, oxygen is used to break down smaller molecules, smaller molecules enter the mitochondrion. Finally, a large amount of energy is released.
Explanation:
After you ate an energy bar full of glucose, the molecules will first enter the cells, prepare to be broken down in the first site, cytoplasm. And now, oxygen takes a part in it, continue to break it down. The smaller molecules now enter the energy source of a cell, which is mitochondrion, the energy will be released here.
Hope this will help❤️
Which of the following types of plastic is almost never recycled?
A- take-out food containers
B- milk jugs
C- shampoo bottles
D- soda bottles
definition of compounds
Answer:
A material made up of two or more substances.
Example: H20 2 hydrogen 1 oxygen
Explanation:
Please give me BRAINLIEST and THANKS lol <(￣︶￣)>
Which of the following light sources would a grower be likely to choose if the goals were to raise red spectrum light, maintain low temperatures, and keep costs low?
LED grow lights
high-pressure sodium lights
fluorescent grow lights
metal halide lights
Answer:
The answer is the second option, which is High-pressure sodium light
Explanation:
The three most common lamp types for high-intensity lighting are high pressure sodium (HPS) lamps, metal halide (MH) lamps, and LEDs. HPS lamps are the most common lamp type used in greenhouses today due to their high energy efficiency, moderately long bulb life and relatively small fixture size.
Answer:
high pressure sodium lights-A of edge
Explanation:
explain why aerobic respiration occurs before lactic acid fermentation in most muscles.
Aerobic respiration occurs when there is insufficient oxygen is present in respiration. If the body does not respire enough, the cells respire anaerobically. During vigorous exercise, muscle cramp occurs due to the production of lactic acid by anaerobic respiration.
Aerobic respiration:Aerobic respiration occurs in the cell of the body.It is the process of cellular respiration that takes place in the presence of oxygen gas to produce energy from food.Water and carbon dioxide are produced as end products.Thus, we can conclude that aerobic respiration occurs when there is insufficient oxygen present for respiration. if the body does not respire enough, the cells respire anaerobically. During vigorous exercise, muscle cramp occurs due to the production of lactic acid by anaerobic respiration. The acid wears away muscles and causes cramps.
You can learn more about aerobic respiration here:
https://brainly.com/question/11691469
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5. Write the mRNA strand for the given DNA strand.
a. ATGCTGCACATGCTGT
b. GGACCT AGATAATGC-
Answer:
Please fix question or do you want both a and b with the mrna strand?
Explanation:
The first line of defense involves which structure(s)?
T-cells
skin
blood
B-cells
Answer:
option 2, skin
Explanation:
Answer:
b skin
Explanation:
4 In your own words, describe the relationship between
the processes and forces that create the different types of rocks
Answer:The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.