Answer: Your heart has 4 chambers. The upper chambers are called the left and right atria and the lower chambers are called the left and right ventricles. A wall of muscle called the septum separates the left and right atria and the left and right ventricles.
Explanation: my answer is an explanation in itself
Percentage of the atmosphere that is nitrogen gas
Answer:
Air is composed of 78 percent nitrogen
Explanation:
Answer:
78%
is the answer to your question
Both flatworms and roundworms have a body type called
A. radial symmetry
B. bilateral symmetry
C. segmented
Answer:
i believe the answer is bilateral symmetry
50 POINTS +BRAINLIEST!
the largest moon in the solar system, orbits which planet?
A.)Jupiter
B.) Mars
C.) Saturn
D.)Uranus
Answer:
A.) Jupiter
Explanation:
The largest moon Ganymede in the solar system, orbits the Jupiter planet.
Explanation:
the largest moon in the solar system, orbits in the Jupiter planet
The graph of a population of deer is shown below. What can be concluded from this graph?
a. The deer population grew exponentially
b. The deer population grew at a constant rate
c. The deer population reached its carrying capacity
d. The deer population will never reach a carrying capacity
Explain:
Answer: It’s exponentially
what is the greatest degree of genetic diversity
Answer:
The greatest degree of genetic variation would be found in an offspring resulting from sexual reproduction.
Explanation:
Explanation: Asexual reproduction produces very less variations. Asexual reproduction requires only one parent and thus the offspring would be very similar to the parent.
What do scientists call the differences in the traits of a particular species?
A. adaptation
B. variation
C. fossilization
D. selection
Answer:d
Explanation:
A blood specimen X is tested with blood group A serum and with B serum, both of which it agglutinate. To which blood group does X belong?
Answer: The blood group X belongs to is blood group AB.
Explanation:
Blood group typing is a process used in blood group serology to safely receive or donate blood during transfusion procedures. Blood groups found in human being can be put into four distinct groups, A, B, AB, and O, according to the antigens and antibodies that are found in the blood. Antigens are found on the surface of the red blood cells, while antibodies are found in plasma.
--> Blood group A: They possess A antigen on their red blood cells and antibody B in the serum
--> Blood group B: They possess B antigens on their red blood cells and antibody A in the serum.
--> Blood group AB: They possess both antigen A and B on their red cells with NEITHER antibody A nor B.
--> Blood group O: They possess neither antigen A nor B on their reb cells but has BOTH antibodies A and B.
In blood typing, we can identify our blood group by mixing a drop of blood with serum containing:
--> Anti- A antibody and
--> Anti- B antibody.
The clumping of red blood cells is called agglutination. The anti - A serum will cause the blood containing red blood cells with antigen A to clump while the anti- B serum would cause blood containing red cells with antigen B to clump. Therefore, specimen X is Blood group AB as the blood group contains both antigen A and B which clumps when added both A and B serum antibody.
A secretion responsible for the development of a deep voice and facial hair is synthesized by
1.) Structure F
2.) Structure B
3.) Structure C
4.) Structure G
The development of a deep voice is due to structure C.
What is the thyroid gland?The thyroid gland is the gland that is responsible for deep voice. The gland is found at the anterior of the neck just around the Adam's apple. Over-secretion of the thyroid gland leads to a very deep voice.
From the structure shown, the development of a deep voice is due to endocrine secretion of a hormone from structure C.
Learn more about thyroid gland: https://brainly.com/question/4729636
The atomic mass of phosphorus
A 1.00784u
B 30.973762u
C 39.948u
D 22.989769u
How does an increase in the human population affect ecosystems?
A larger human population increases Earth's biodiversity.
A larger human population has a greater need for natural resources.
A larger human population produces more natural resources for living things
A larger human population helps matter cycle through ecosystems more quickly
Answer:
B, A larger human population has a greater need for natural resources.
Explanation:
Biodiversity means the population of something. But humans are using more resources as the human biodiversity increases.
SOOOOO... as the biodiversity of the human population increases, CAUSES us to use resources.
PLEASE HELP ASAP!!!!Which of the following is not a part of a nucleotide
A. Sugar
B. Phosphate
C. Base
D. double Helix
1. Your ears are the sense organs that respond to the stimulus of ____.
Sight
taste
sound
touch
Answer:
The answer is sound.
Over the month, what changes can you expect to observe in the Moon? A. It will gradually increase in size for four weeks before it will begin to decrease in size for four weeks. B. It will gradually increase in size for approximately two weeks and it will gradually decrease in size for approximately two weeks. C. It will remain unchanged. D. It will gradually decrease in size for four weeks.
Answer: B. It will gradually increase in size for approximately two weeks and it will gradually decrease in size for approximately two weeks.
Explanation:
The moon orbits around the earth in 27.322 days. It is the brightest celestial body. It does not shine under own power instead glows with the reflected sunlight. Moon start dark and gets illuminated by the sunlight over the time of two weeks. When moon's disk becomes fully bright it gets fade, again returns to dark in about two weeks.
plsssss help me with this .Evidence for evolution from living organisms comes from comparisons of their DNA, similar bone structures, and embryo similarities. Pick one piece of evidence and describe how supports the theory of evolution. piece of evidence and describe how supports the theory of evolution are comparisons of their DNA, similar bone structures, and embryo similarities.
Answer:
I pick embryo similarities.
Explanation:
Vertebrates have a resemblance of their embryos. Such as birds, amphibians, fish, reptiles and mammals. Though there's resemblance but it doesn't form the same organism since there's evolution which might be due to geographic and ecological isolations.
Example, Amphibian embryo resemble with fish embryo.
Refer to Animation: Filtration, Reabsorption, Secretion. Cells of the excretory tubule _________water by osmosis, from which we can conclude that the solute concentration in these cells must be _________ than in the filtrate.
Answer:
Remove and lower.
Explanation:
Cells of the excretory tubule remove water by osmosis, from which we can conclude that the solute concentration in these cells must be lower than in the filtrate. The excretory tubule remove excess amount of water from the cell through semi permeable membrane of the cell while on the other hand, the solute concentration in the cell is lower as compared to filtrate so that's why it can't diffuse from the cell by the process of osmosis.
I give brainliest
What is the opposite force to pushing off the ground to jump?ASAP on the exam only 5 minutes!!!!!!!
Your leg pushing off your foot
Gravity pulling your foot down
The ground pushing off your foot
The ground pulling your foot down
Answer:
Ig,
Gravity pulling your foot down.
Why do we always consider the Economic Threshold Level (ETL) in farming? What
advice you can give to the farmer about the control of insect pests considering
climate change?___________________________________________________________________________________________________________
Answer: Climate Change will always bring Pests/insects
Explanation: Pests and Insects migrate to better climate balanced areas when the climate in their habitat has changed and it's best to maintain crops from pests and insects but to be honest they will always come.
NO LINKS Explain how a knee-j erk reflex occurs.
Answer:
The sensory neuron receive the stimulus by tapping at the knee cap and its going to send the message all the way to the spinal cord. And then it will make a U-turn and they will send the message back to motor neurons and then back to the knee cap so that the muscle will contract and your knee will just kick up.
Explanation:
what is cell physiology
Which of the following would be a clue that a substance is a mineral?
A. it appears on the periodic table of elements
B. it exists as a liquid or gas
C. it comes from a specific type of flower
D. it was made by a machine in a factory
Answer:
c.it comes from a specific type of flower
Why do traits increase within a population over time
Hello! Help me please.
Answer
Sound waves are traveling vibrations of particles in media such as air, water, or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.
A trace fossil can determine the ______________ of an organism.
color
species
embryo
behavior
What are three methods of handling solid waste?
Explanation:
Methods of Solid Waste Disposal and Management:
Solid Waste Open Burning.
Sea dumping process.
Solid wastes sanitary landfills.
Incineration method.
Composting process.
Disposal by Ploughing into the fields.
Disposal by hog feeding.
Salvaging procedure.
1. Your ears are the sense organs that respond to the stimulus of _________________________________.
sight
taste
sound
touch
Answer:
sound
Explanation:
Our sense organs detect changes in the world around us known as stimuli . The sense organs contain groups of specialised cells called receptor cells which produce electrical impulses in response to specific stimuli.
What determines the order in which amino acids are assembled into proteins?
A.
the order of the genes on a chromosome
B.
the arrangement of the chromosomes in a cell
C.
the order of the three nitrogen bases in a DNA molecule
D.
the number of nitrogen bases in the DNA molecule
Answer:
C
Explanation:
C the order of the three nitrogen bases in a DNA molecule
The purpose of the binomial system of nomenclature is to
show evolutionary relationships/relatedness
Oshorten the lengthy descriptive names of organisms
eliminate regional difference in names
O all of the above
Answer:
All of the above
Explanation:
all choices apply
How are field guide and dichotomous key alike and different???
Give several ways the are alike and several ways they are different.
Be sure to use good science language in your response.
Answer:Field guide: an illustrated book that provides descriptions of plants or animals found in nature. Dichotomous key: a device used to identify what group an organism or object is in. ... Organisms are MOST CLOSELY related. Members of a species are capable of breeding and producing offspring that can also reproduce.
Explanation:
The food web shows the energy transfer between organisms in an ecosystem.
How will it most likely affect the ecosystem if the population of grass increases?
A: The population of trees will increase.
B: The population of mice will increase.
C: The population of deer will decrease.
D: The population of hawks will decrease.
Answer:
in pretty sure the population of mice will increase
What would most likely happen if there were no condensation stage in the water cycle?
Answer:
Water could not convert from a gas to a liquid and the earth will dry out and die.
Explanation: