Answer:
The options are
A) negative pressure breathing
B) forced air breathing
C) positive pressure breathing
D) terrestrial breathing
E) none of the above
The answer is C) positive pressure breathing
Explanation:
Mammals such as humans and goats possess diaphragms . The muscles of the diaphragm create a type of pressure which helps in pulling air into the lungs. This process is called Negative pressure breathing.
Amphibians lack diaphragms so they lack pressure to draw air into the lungs , it is forced into the lungs instead in a process known as positive pressure breathing.
Why do predator populations follow the cycles of prey populations?
Answer: Food abundance
Explanation: If prey animals increase in number, predator numbers increase, if prey animal numbers decrease, so do the predator numbers
Which of the following pairs of hormones are secreted by the posterior pituitary gland?
A) Prolactin and growth hormone
B) Melatonin-stimulating hormone and oxytocin
C) Oxytocin and antidiuretic hormone
D) Follicle-stimulating hormone and thyroid-stimulating hormone
E) Prolactin and ACTH
The pairs of hormones secreted by the posterior pituitary gland are C. Oxytocin and antidiuretic hormone.
What is pituitary gland?The posterior pituitary gland is a small, pea-sized endocrine gland located at the base of the brain. It is connected to the hypothalamus by a stalk. The hypothalamus produces two hormones, oxytocin and antidiuretic hormone (ADH), which are stored in the posterior pituitary gland and released into the bloodstream when needed.
Oxytocin is a hormone that is involved in childbirth, breastfeeding, and social bonding. ADH is a hormone that is involved in regulating water balance and blood pressure.
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Glucose is present in blood plasma at a concentration of approximately 80 mg/dL. A typical 70 kg human has approximately 5 L blood, which is 55% plasma. Using the glucose concentration of Sprite that you calculated in the previous question, how many mL of Sprite does a human need to drink to reach a plasma glucose concentration of 80 mg/dL, assuming none is mobilized?
Answer: 48.93 mL of sprite
Volume of blood in 7 Kg human = 5 L
Percentage of plasma in blood = 55%
Volume of plasma in 5 L blood = (1 L = 10 dL)
Concentration of glucose in plasma = 80 mg/dL
Amount of glucose present in 27.5 dL : 80 mg /dL × 27.5 dL= 2200 mg
Let the volume of sprite with 2200 mg glucose be x
Concentration of glucose in sprite = 44.96 mg/mL
Explanation:
Which best matches objects that a scientist would include on a list describing a forest ecosystem?
different types of animals and plants and the forest soil
one animal species, the soil, water, and nutrients
all the living things in the forest ecosystem
different types of soil, rocks, and water sources in the forest
Answer:
The answer is A
Explanation:
Basically using logic you get this answer
I just took the test and got it right
Hopefully this helps you
pls mark brainlest
The objects that a scientist would include on a list describing a forest ecosystem are: A. different types of animals and plants and the forest soil.
What is a forest ecosystem?A forest ecosystem can be defined as a dynamic biological community that consists of animals and plants (biotic factors) and the physical environment (abiotic factors) such as forest soil in which they interact.
This ultimately implies that, the objects that a scientist would include on a list which describes a forest ecosystem are as follows:
Different types of animals.Different types of plants.The forest soil.Read more on an ecosystem here: brainly.com/question/15971107
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In this example:
"A bug repellant is sprayed on one arm the other arm is not sprayed. The number of bug bites is recorded after 2 hours."
What is the dependent variable?
Answer:
it is the amount of bugs attacking you
Explanation:
the dependent value is what you cannot control, and you can control the bug spray, you cannot control the bugs attacking
What might happen to biodiversity in area 1 if the new bird species moved into the area
Answer:
New bird species may alter the ecosystem and modify the trophic chain when they become invasive, leading consequently to the loss of biodiversity
Explanation:
Invasive (also known as alien) species are non-native species capable of spreading into a new area where they have a drastic impact on the ecosystem. An invasive species may cause an important loss of biodiversity and modify the food web in an ecosystem by replacing native species. Examples of invasive bird species include the house sparrow, European starling, cattle egret, rock pigeon, etc. Nonetheless, it is important to highlight that not necessarily new bird species will become invasive (it will depend on their effects on the ecosystem).
If influenza acquired by sharing a drinking glass, then the glass was acting as a:____.
a. vector.
b. reservoir.
c. vehicle.
d. fomite.
Answer: Option C.
Vehicle
Explanation:
It is vehicle because, vehicle is a non living source that serve as an agents or carrier if infectious diseases and that infect or affect many people.
In this case a drinking glass of water is a non living source because it is does not have life and the pathogens that causes influenza are in it and as people begin to share the drinking glass of water, the pathogens are transmitted and they have influenza.
Independent Dependent 1. A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed at 2 years.
Answer:
Independent is hormone and dependent is the weight
Similar cells which work together form???
Answer:
but why the red tho?
Explanation:
Question 12
The cell/plasma membrane is made up of what two things?
b
hydrophobic lipid and hydrophilic phosphate
hydrophilic sugar and hydrophobic lipid
hydrophobic lipid and carbon
hydrophilic phosphate and hydrophilic sugar
C с
d
The process of converting nitrogen gas to nitrate ions that
plants can absorb is
10. Define the following terms:
a. Nucleoid-
b. Mesosomes -
d. Capsid -
e. Plasmalemma-
Answer:
Alright, sure thing.
Explanation:
a. Nucleoid- The nucleoid (meaning nucleus-like) is an irregularly-shaped region within the cell of a prokaryote that contains all or most of the genetic material.
b. Mesosomes- Mesosomes or chondrioids are folded invaginations in the plasma membrane of bacteria that are produced by the chemical fixation techniques used to prepare samples for electron microscopy.
d. Capsid- A capsid is the protein shell of a virus, enclosing its genetic material.
e. Plasmalemma- The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment.
Answer:
a. nucleoid - It is an irregulary shaped region within the procaryotic cell that contains all or most of the genetic material.
b. Mesosomes - these are folded invaginations in the plasma membrane of the bacteria that are produced by the chemical fixation techniques used to prepare samples for electron microscopy.
c. Caspid - a caspid is the protien shell of a virus, enclosing its genetic material.
d. Plasmalemma - It is a biological membrane that separates the interior of all cells from the outsise environment which protect the cell from its environment.
Which of the following is an environmental factor?
A.
Anxiety
B.
Drinking
C.
Smoking
D.
Air or Water pollution
Answer:D. and maybe C.
Explanation:
Answer:
Air and water pollution
Explanation:
I did the test
You encounter a new compound that is bright purple and smells of violets. It sticks to surfaces in a way similar to water and can replace water in the running of living cells. You might expect that this new molecule will make
A. hydrophobic bonds.
B. ionic bonds.
C. peptide bonds.
D. covalent bonds.
E. hydrogen bonds.
One encounters a new compound that is bright purple and smells of violets, it sticks to surfaces in a way similar to water, so the new substance might be making the hydrogen bonds that are present in Option E.
What is hydrogen bonding?Hydrogen bonding is a type of intermolecular force that occurs when a hydrogen atom is covalently bonded to an electronegative atom, and this type of bonding is relatively weak compared to covalent bonds, but it can play an important role in stabilizing the structures of molecules as the new compound sticks to surfaces in a way similar to water, and it is polar and makes the dipole-dipole interaction possible, so the new substance would make the hydrogen bond.
Hence, the new substance might be making the hydrogen bonds that are present in Option E.
Learn more about hydrogen bonding here.
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Which of the following would most likely occur if cattle lost the ability to maintain a colony of microorganisms in their digestive tract
(100 POINTS AND BRAINLYEST) The rate of geologic processes can happen quickly or take a long time. True False
Answer:
True
Explanation:
As many as ten laminations per mm can occur in these rocks. It does not take long periods of time to form.
Answer: The answer is a short amount of time
Explanation:
A staggering gait is MOST suggestive of damage to the:________.
A) medulla.
B) cerebrum.
C) brainstem.
D) cerebellum
Answer:
D) cerebellum
Explanation:
Which is a function performed by the central nervous system (CNS)? Select all that apply.
processing information that is received from the stimuli receptors
receiving stimuli and making the body react to those stimuli
sending out information so that the body can react appropriately to stimuli
coordinating reflexes and reactions to stimuli
sensing stimuli and causing reactions in the body
Answer:
Which is a function performed by the central nervous system (CNS)? Select all that apply.
processing information that is received from the stimuli receptors **
receiving stimuli and making the body react to those stimuli
sending out information so that the body can react appropriately to stimuli **
coordinating reflexes and reactions to stimuli **
sensing stimuli and causing reactions in the body
Explanation:
I took test
The function that should be performed by the C-N-S should be option a, option third, and option fourth.
What is central nervous system (C-N-S)?The central nervous system (C-N-S) should be comprise of the brain and the spinal cord. It this, it contain 2 parts of the nervous system. The other part should be considered as the peri-ph-e-r-al nervous system, which comprise of nerves that linked the brain and spinal cord to the rest of the body.
Therefore, we can conclude that The function that should be performed by the C-N-S should be option a, option third, and option fourth.
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Please help! Can someone help me answer this biology question for 9th grade biology living earth .
Answer:
The Sea Star lives in the Ocean
Explanation:
Answer:
The ocean is home to the sea star.
Hope this helps :)
Which of the following is the best definition of a system?
Answer:
A system is a group of interacting or interrelated entities that form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and expressed in its functioning. Systems are the subjects of study of systems theory.Brainiest please ;-;
The best definition of system is a group of connected or related things. The correct option is B.
What is system?A system is a grouping of elements or components that work together to achieve a common goal. The term can refer to both the organization or plan itself and the components of the system.
In systems engineering, four types of engineered system context are generally recognized: product system, service system, enterprise system, and system of systems.
Input and output, processors, control, feedback, environment, boundaries, and interface are all system elements.
Input and output - A system's main goal is to produce an efficient output.
The investigation of system concepts has three major implications: A system must be designed to achieve a specific goal.
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
A. The form and arrangement of an object
B. a group of connected or related things?
C. Something that takes up space and has mass?
D. A collection of organs?
Gathering data in an experiment is called
Answer:
Researching
Explanation:
Reseaching is to gather data
what is the monomer of a nucleic acid
Answer:
Nucleotide
Explanation:
The cheek smear slide is made by taking a q-tip or toothpick, rubbing it on the inside of your mouth (to remove cells) and then wiping or smearing it onto a blank slide. A stain is used on the cells so that you can see them, otherwise, they would be see-through. Look at the cheek smear slide using the 10x objective (total magnification of 100x). Approximately how many cells do you see inside the red circle
Answer:
The number of cells that will be viewed will depend on the size of the cells and the size of the red circle on the slide.
Explanation:
The cells have different sizes and this influences the number of cells that you will be able to view under a microscope.
The intensity with which the smear was made will also influence the number of cells viewed, as well as the quality and quantity of dye you used on the slide.
In summary, we can say that the number of cells that you will be able to visualize is relative and only the experience, in itself, will be able to determine a number.
Which options describe the structure of a water molecule? Select all that apply. 1. the molecule has an overall straight shape 2. the hydrogen atoms are attached to the oxygen atom at an angle 3. the molecule has an overall bent shape 4. the hydrogen atoms are attached at opposite ends of the oxygen atom
Answer:3 and 2
Explanation:
For water molecule all options are correct here.
What is the structure of a water molecule ?
Water occupy around 70% of the earth’s surface, it make up about 95% of the living organisms.
Each water molecule is composed up of one molecule of oxygen and two molecules of hydrogen by forming a covalent bond .
A strong bond of attraction between nucleus of the oxygen nucleus and electrons of hydrogen has been seen which form an angle 105° between hydrogen atoms
Due to this asymmetry in shape water has a strong property of strong dipole movement that is highly polarized molecule with both positive and negative charges.
It is very cohesive in nature by developing a strong bonding with itself, and also adhesive in nature.
It shows high boiling point as hydrogen- oxygen bond highly polar and
Hydrogen atoms are present at two corners with a tetrahedron shaped which gives water a high polarity.
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Which correctly lists three scientists who supported the heliocentric model of the solar system? Aristotle, Ptolemy, Copernicus Copernicus, Ptolemy, Kepler Galileo, Kepler, Aristotle Kepler, Galileo, Copernicus
The option which correctly lists three scientists who supported the heliocentric model of the solar system is: D. Kepler, Galileo, Copernicus.
A solar system can be defined as a collection of both the inner and outer planets alongside the moon in orbit around the sun. The nine (9) planets of the solar system orbiting around the sun are;
Mercury.Venus.Earth.Mars.Jupiter.Neptune.Venus.Saturn.Pluto.Heliocentric model of the solar system can be defined as a cosmological model that asserts that the Sun lies at or near a central point while the planetary bodies revolve around it.
Basically, the heliocentric model of the solar system was discovered by Nicolaus Copernicus and supported by Johannes Kepler and Galileo Galilei.
In conclusion, the three scientists who supported the heliocentric model of the solar system are Kepler, Galileo, and Copernicus.
Read more: https://brainly.com/question/1251115
Answer:
D. Kepler, Galileo, Copernicus.
Explanation:
took the test
Please help
Choose all the answers that apply.
Plants _____.
release oxygen during photosynthesis
use nitrates to make proteins
are eaten by herbivores
cannot use nitrogen directly from the air
need nitrogen for photosynthesis
Answer: release oxygen during photosynthesis
use nitrates to make proteins
Explanation:
i just googled it homie
Answer:
release oxygen during photosynthesis.
use nitrates to make proteins
cannot use nitrogen directly from the air
Explanation:
The subunits from which ATP is made are
ADP and phosphate.
FAD and NAD+.
FAD and NADPH.
ADP and FAD.
ADP and NAD+.
Explanation:
The subunits from which ATP is made are ADP and Phosphate
The subunits from which ATP is made are ADP and phosphate.
ATP, meaning Adenosine triphosphate, is a biological molecule responsible for the storage and release of energy in living cells. ATP is structurally made up of three phosphate groups, adenine base and a ribose sugar. However, ATP stores energy for living cells when one phosphate group is added to adenosine diphosphate (ADP) i.e. ADP + Pi = ATP. Therefore, the subunits from which ATP is made are ADP and phosphate.Learn more at: https://brainly.com/question/8367148?referrer=searchResults
Lipid is one of the major classes of biomolecules needed by the body. The body breaks down the lipids that we consume to create and . .
Answer:
Most lipids we consume in our diet are fats. lipids break down into diglycerides because of lingual lipase. The fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver enables the breakdown of fats into fatty acids and glycerol
Explanation:
the importance of fossils to the rock record
Answer:
The importance of fossils to the rock record is that fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution
Explanation:
Where would you expect to find genetic material in a prokaryotic cell?
( WILL MARK BRAINLIEST)
A. In the organelles
B. In the nucleus
C. In the cytoplasm
D. A prokaryotic cell does not genetic material
Answer:
The answer is Option B the nucleus
Explanation:
Genetic information in prokaryotic cells is carried on a single circular piece of DNA which is attached to the cell membrane and in direct contact with the cytoplasm. There is no enclosing membrane, so there is no true nucleus, but simply a concentration of DNA known as a nucleoid.
and DNA is present in the nucleus. Therefore option B is correct
hope this helped you
please mark as the brainliest (ㆁωㆁ)
Answer:
Its C in the cytoplasm
Explanation:
Prokaryotic cells do not have a nucleus so their DNA floats around in their cytoplasm (This is for anyone that has the exact question, I'm on the globe and this is correct but the more simplified answer)
