Answer:
The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs. Gas exchange in the lungs occurs in millions of small air sacs; in mammals and reptiles these are called alveoli, and in birds they are known as atria. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood. These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea, which branches in the middle of the chest into the two main bronchi. These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the bronchioles. In birds the bronchioles are termed parabronchi. It is the bronchioles, or parabronchi that generally open into the microscopic alveoli in mammals and atria in birds. Air has to be pumped from the environment into the alveoli or atria by the process of breathing which involves the muscles of respiration.
Explanation:
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what are phosphates?
plsss help
Answer:
mineral is a phosphate
Explanation:
Answer:
In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid H ₃PO ₄. The phosphate or orthophosphate ion [PO ₄]³⁻ is derived from phosphoric acid by the removal of three protons H⁺ .
Explanation:
Help pls very time sensitive due today!!
Answer:
1 left.
Explanation:
You have 4 particles on the left and 6 particles on the right. An equilibrium state is where both sides would have the same amount of particles.
So 1 particle from the right will have to move to the left.
Think of it this way.
4 does not equal 6.
5 does equal 5
can someone help plssssssssssss
Answer:
Distrupted
Explanation:
the main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.
Answer:
To this Extent - Distrupted
The main flow of homestasis was "disrupted" as now some of the cells can't carry out the main bodily funtions.
need help will give brainlist (don't know if a is correct)
Answer:
Definitely A. is correct. :D
Explanation:
90% H2O 10% Solute The solution is: hypertonic / hypotonic / isotonic Water will: not move / move into the cell / move out of the cell
Answer:
Hypotonic / moves into the cell.
Explanation:
Hope you have a nice evening.
The solution is hypotonic. Water will move into the cell.
What is hypotonic solution?A hypotonic solution is one where the concentration of solutes outside the cell is lower than the concentration inside the cell. In this case, the solution is composed of 90% water and 10% solute, which is a lower concentration of solutes than inside the cell.
As a result, water will move into the cell in order to balance the concentration of solutes and maintain homeostasis. This can cause the cell to swell and may even lead to lysis if the cell is unable to handle the increased volume.
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When can a species develop genetic diversity?
Answer:
over a long period of time ;)
Explanation:
I know this because another answer said this was the answer and it was answer expert verified... ;)
Brainliest!!Which of the following sequences is the correct complementary DNA strand for ATGCTA?
Answer:
TACGAT
Explanation:
Guanine matches with cytosine
adenine matches with thymine
This is for Earth and Space but that wasn't a choice to pick.
Which statement best explains the impact of unfavorable oceanic conditions on human behavior?
1. Boating activities decrease along shorelines.
2. Families move toward shorelines.
3. People spend less time playing at the beach.
4. Recreational water sports increase on beaches.
7. Which is an example of an organ system?
muscles
lungs
blood vessels
circulatory
Answer:
circulatory
Explanation:
contains the heart, lungs and blood vessels
Which of the following is NOT one of Sir Isaac Newton’s accomplishments?
a.He discovered gravity and showed that all objects fall at the same rate regardless of mass.
b.He developed the Universal Law of Gravitation that told the two things gravity depended on.
c.He realized that an object in motion will stay in motion unless acted on by an unbalanced force.
d.He discovered that every action force has equal but opposite reaction force.
Explain the consequences of an increase of two degrees Fahrenheit.
Answer:I think it was The Heat waves can be dangerous, causing illnesses such as heat cramps and heat stroke, or even death. Warmer temperatures can also lead to a chain reaction of other changes around the world. That's because increasing air temperature also affects the oceans, weather patterns, snow and ice, and plants and animals
Explanation:
hope this helps have a nice night ❤️❤️❤️
One change in the body results in another change. This second change reverses the first change in order to maintain homeostasis. This sequence describes a type of
Answer:
Feedback loop
Explanation:
A feedback loop is a process in which the body tends to return to homeostasis if it deviates from normal conditions.
A feedback loop consists o three components a receptor, a control center and an effector.
There are two types of feedback loops namely, positive feedback loop and negative feedback loop.
In a negative feedback loop, the effect of the stimulus is to shut off the original stimulus or reduce its intensity, while in positive feedback loop, intensifies a change in the body's physiological condition.
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Examine the following image. Which ocean-floor feature is indicated by the arrow in the image?
A diagram showing a location where seafloor spreading occurs
Public Domain
Guyot
Mid-ocean ridge
Seamount
Trench
Answer:
Its a guyot.
Explanation:
That picture on the screenshot looks like the one I put in
Answer:
guyat
Explanation:
What would happen if a second universal flood occurs?
Mendel wanted to find out if the pattern of inheritance for one trait affected the pattern of inheritance for another. What experamint did he perform to test this idea
Answer: He performed dihybrid crosses
Explanation:
Dihybrid cross is simply refered to as a cross that is done for two genes that are different with regards to their traits. For example, if we cross two maize plants which have different shapes and color let's say that one is white and round while the other maize's colour is yellow and its shape is wrinkly.
Since Mendel wanted to find out if the pattern of inheritance for one trait affected the pattern of inheritance for another, the experiment performed will be dihybrid crosses.
8. Outline the process of metaphase, inclusive of the role of microtubules and the centromere.
Answer:
Chromosomes are positioned in the middle of the cell during metaphase.
Explanation:
During metaphase, the centrosomes are at opposite poles or sides of the cell. The spindle apparatus is formed and the nuclear membrane has dissolved. The spindle fibers, also known as microtubules have lined up the chromosomes along the equatorial plate in the middle of the cell so each sister chromatid faces opposite directions. The sister chromatids are still connected by the centromere, and this is the last time they are connected during this division. The centromere is also where kinetochores assemble, and kinetochores are the sites of attachment for microtubules to pull the sister chromatids apart. They are important for the cell to be able to divide.
A branch from a tree and a dichotomous key are shown below.
What type of tree produced the branch?
A. locust
B. ash
C. cedar
D. magnolia
Which of the following objects absorbs the most light?
Answer:plants
Explanation:
Answer:
D a wool carpet
Explanation:
is the answer
High levels of what substance found in the blood determines diabetes and prediabetes?
Answer: hemoglobins with sugar attached
Explanation:
Max is shining a flashlight at the wall. What happens?
1. The St. Lucie River drains Lake Okeechobee into the Atlantic Ocean.
What is the relationship among the parts of this system?
Answer:
The St Lucie canal serves as an outlet of drainage for the Okeechobee Lake through the St Lucie River and out to the Atlantic Ocean.
Explanation:
The St. Lucie River is an estuary in Florida, in the United States. It was basically a freshwater system before an inlet was dug to provide access directly to the Atlantic Ocean.
Lake Okeechobee is the second largest freshwater lake in the United States. Water flows into the lake from various sources with Kissimmee River being the major source.
Because of the high levels of water in Lake Okeechobee, the St. Lucie canal was constructed in the 1920s. The St. Lucie canal provides a good outlet from the Okeechobee lake, through the St. Lucie River and out to the Atlantic Ocean.
A plant developer wishes to develop a more popular apple. Several new varieties have shown up in the test orchard. The ideal fruit has comparatively thick, tough skin that resists pests and survives packaging and shipping. It has thick, tender flesh. It will have a small, delicate seed core. Which of the following is most likely to be chosen as a desirable variety to test further?
1. a fruit with a thick, tough endocarp and a thick, tender mesocarp
2. a fruit with a thin, delicate epicarp and thin, tough mesocarp
3. a fruit with a thick, tender epicarp and a thick, delicate endocarp
4. a fruit with thin, delicate epicarp and a large, thick endocarp
Answer:
A fruit with a thick, tough endocarp and a thick, tender mesocarp
Explanation:
If an organism uses mitosis (asexual reproduction) to reproduce. What is the outcome?
A. The offspring are twice as large as the parent
B. The offspring are genetically identical to the parent
C. The offspring developed from a parents fertile egg
D. The offspring have half as many chromosomes as the parent
Answer:
B
Explanation:
I learned this 2 years ago
PLEASE HELP! Brainlest to first correct answer.
(blank) means to be composed of one cell.
(blank) means to be composed of many cells.
Answer:
✔ Unicellular
means to be composed of one cell.
✔ Multicellular
means to be composed of many cells.
Explanation:
edge 2022
Unicellular means to be composed of one cell, while multicellular means to be composed of many cells.
What are cellular organisms?Cellular organisms are living beings that consist of one or more cells. Cells are the basic unit of life and the building blocks of all living organisms. Cellular organisms include all living things from bacteria to complex multicellular organisms such as plants and animals.
Cells have a variety of structures and functions depending on the type of organism they belong to. In unicellular organisms, such as bacteria, a single cell performs all the functions required for life. In multicellular organisms, cells are specialized to perform different functions, such as carrying oxygen in red blood cells or detecting light in the retina of the eye.
Cellular organisms have the ability to reproduce, grow, and respond to their environment. The study of cellular organisms is fundamental to the fields of biology, medicine, and biotechnology.
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Can a single cell be living but not be an organism?
1. Yes
2.no
No, this is not possible.
Shortage of food plants, erosion of land, and decrease in oxygen levels are all effects of
Immigration
Deforestation
Mining
Trade
Answer:
Deforestation
Explanation:
I took this quiz and got a 100.
2. The breeding of two plants is called a
crossing over
cross
intertwining
mixing
Answer:
I am by no means 100% on this but I think its Cross, its usually called crossing breeding but out of those i would say cross.
I Hope This Helps :)
Cells come from other cells. Question 2 options: Sometimes False Never True
Answer:
This statement is true because cells have the capability to divide.
Answer:
It is true
Explanation:
I took the test its right
true or false: Plant cells need centrioles in mitosis.
What percentage of energy is lost as you move up trophic levels?
Answer: 10 percent
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
hope this helps miss and have a great night
