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Which method best describes how a homeothermic organism maintains a constant internal temperature, despite changes in its external environment? (4 points)
A. Using negative feedback to decrease its external temperature when it rises above its normal range
B. Using negative feedback to increase its internal temperature when it falls below its normal range
C. Using positive feedback to decrease its internal temperature when it rises above its normal range
D. Using positive feedback to increase its external temperature when it falls below its normal range
Answer:
A
Explanation:
Yes
Answer:
B. Using negative feedback to increase its internal temperature when it falls below its normal range
Explanation:
The question asked about INTERNAL temp and how its stbalized, we know that MOST to ALL of negative feedback is getting the organism to return to its original state, high body temp was its original state, therfore,Using negative feedback to increase its internal temperature when it falls below its normal range, is the correct answer.
Which of the following best describes an ecosystem in a neighborhood garden?
Answer:What do biologist call an ecosystem that has reached its maximum potential? ... Darwinʼs views are no longer accepted by the scientific community. ... Which of the following best defines the ecological interaction between the honeyguide bird and the honey badger? ... Rabbits and deer eat lettuce leaves from a garden.
Explanation:
Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?
Answer: Chemically, it consists of hydrophobic organic compounds, mainly straight-chain aliphatic hydrocarbons with or without a variety of substituted functional groups. The main functions of the epicuticular wax are to decrease surface wetting and moisture loss.
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Define permafrost in you own words!
Answer:
Permafrost is ground that continuously remains below 0°C for two or more years, located on land or under the ocean. Permafrost does not have to be the first layer that is on the ground. It can be from an inch to several miles deep under the Earth's surface.
Explanation:
Answer: pick one
try this,
Permafrost is a permanently frozen layer on or under Earth's surface. It consists of soil, gravel, and sand, usually bound together by ice. ... Permafrost covers approximately 22.8 million square kilometers (about 8.8 million square miles) in Earth's Northern Hemisphere. Frozen ground is not always the same as permafrost.
or try this,
Permafrost is soil, rock or sediment that is frozen for more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer".
Explanation:
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PLEASE HELP In codominance _____.
all genes are recessive
only one gene is dominant
neither gene is dominant
more than one gene is dominant
Answer:
More than one gene is dominant
Explanation:
Which of the following processes usually takes the longest amount of time?
A. Hot lava cools and forms new rock.
B. Water vapor condenses to form a cloud.
C. A seismic wave travels through the mantle.
D. An ocean basin forms between two continents.
Answer: these single-celled organisms, one cell must carry out all of the basic functions ... of glaciation, supports theories that the earth has evolved over geologic time. ... torn down by natural processes, including deposition of sediments, rock formation, ... a boiling point, both of which are independent of the amount of the sample.
Explanation:
What do you know about bacteria?
(Multiple choice question)
They are microscopic cells
They are like viruses
They are infectious particles
Answer:
They are microscopic cells
Explanation:
Answer: B
Explanation: they are like viruses . Because virus has bacteria
5. Why are metamorphic rocks formed by contact metamorphism usually not as dense as those
formed by regional metamorphism?
Answer:
The rock was altered by high temperature with extreme pressure
Explanation:
Fossils would be destroyed
Metamorphic rocks formed by contact metamorphism are usually not as
dense as those formed by regional metamorphism because of their mode of
formation which involves a higher temperature without little or no pressure.
Contact metamorphism involves rock formation as a result of contact with
hot magma. The regional metamorphism involves the formation of rocks
deep in the soil through extreme temperature and pressure over a wider
area.
This is the major reason why the metamorphic rocks from contact
metamorphism are denser than the regional metamorphism.
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A nucleotide consists of
A nucleotide is made up of a sugar molecule connected to a phosphate group and a nitrogen-containing base. These bases in nucleotides are adenine, cytosine, guanine, and thymine (Note: Thymine is not present in RNA so it is replaced with Uracil.)
Can u guys help me answering the following Test Guide and using complete sentences
TEST: CELLS AND CELL PROCESSES
REVIEW WORKSHEET
WHAT DO I NEED TO KNOW?
ROBERT HOOK’S CONTRIBUTION TO CELL BIOLOGY__________________
3 PARTS OF THE CELL THEORY __________________________________________________________________________________________________________________________
MAIN DIFFERENCE BETWEEN EUKARYOTIC AND PROKARYOTIC CELLS __________________________________________________________________________________________________________________________
WHAT IS TRUE ABOUT ALL BACTERIA?___________________________________________________
DIFFERENCE BETWEEN LYTIC AND LYSOGENIC CYCLE OF VIRUS REPRODUCTION _______________________________________________________________________________________________________________________________________________________________________________________
NAMING BACTERIA STREPTO VS. STAPHLYO
MOST IMPORTANT JOB OF ALL BACTERIA ________________________
BE FAMILIAR WITH PHOSPHOLIPID ORIENTATION IN FLUID MOSAIC MODEL OF CELL MEMBRANE……WHAT IS PHOSPHATE HEAD ATTRACTED TO? THE LIPID TAIL? __________________________________________________________________________________________________________________________
FUNCTION OF CHOLESTEROL IN THE MEMBRANE ___________________________________________________________
DIFFERENCE BETWEEN CHROMATIN AND CHROMOSOME __________________________________________________________________________________________________________________________
ORGANELLES IN PLANT CELLS NOT SEEN IN ANIMAL CELLS _____________________________________________________________
YOU MUST BE FAMILIAR WITH ALL ORGANELLES ASSOCIATED WITH PLANT AND ANIMAL CELLS AND HAVE AN IDEA ABOUT THEIR FUNCTION
THE RULE FOR OSMOSIS IN TERMS OF SOLVENT AND SOLUTE __________________________________________________________________________________________________________________________
MOVING DOWN A CONCENTRATION GRADIENT MEANS WHAT ____________________________________________________________
WHAT FACILIATED DIFFUSION IS __________________________________________________________________________________________________________________________
CHARACTERISTICS OF PASSIVE AND ACTIVE TRANSPORT AND THE SODIUM POTASSIUM PUMP AS AN EXAMPLE OF ACTIVE TRANSPORT______________________________________________________________________________________________________________________________________________________________________________
HYPERTONIC VS. HYPOTONIC VS. ISOTONIC SOLUTIONS __________________________________________________________________________________________________________________________
CYTOLYSIS, CRENATION, PLASMOLYSIS_______________________________________________________________________________________________________________
ENDOCYTOSIS, PHAGOCYTOSIS, PINOCYTOSIS, EXOCYTOSIS _______________________________________________________________________________________________________________________________________________________________________________________
EMBRYONIC VS. ADULT SOMATIC STEM CELL GENERAL CHARACTERISTICS______________________________________________________________________________________________________________________________________________________________________________________________________________________________________
SOMATIC CELLS VS GAMETES _____________________________________
ANOTHER NAME FOR A FERTILIZED EGG_______________________
CHARACTERISTICS OF GERM LAYERS: ECTODERM, MESODERM, AND EDODERM _______________________________________________________________________________________________________________________________________________________________________________________
PROBLEM SOLVING REGARDING TONICITY SOLUTIONS: CALCULATING PERCENTATGES OF SOLVENT AND SOLUTE BOTH INSIDE AND OUTSIDE THE CELL; DETERMINING THE MOVEMENT OF WATER WITH ARROWS, LABELING THE SOLUTION
Answer:
Robert Hooke is known for the first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork)
Plants are made of cells, Animals are made of cells, Cells produce other cells.
Eukaryotic have a nucleus meanwhile prokaryotic lacks of it.
Bacteria are prokaryotes
Cholesterol stabilize the cell membrane, less fluid at higher temp and less solid at lower temp.
Chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material
Plant cell have cell wall, chloroplasts, plastids, and a central vacuole
Refers to going from regions of high concentration of some entity to regions of low concentration, and such movement generally occurs spontaneously,
Facilitated diffusion is the diffusion of molecules assisted by transport proteins
Passive transport no needs energy, move molecules trough phospholipid bilayer
Active transport needs energy, move molecules trough membranes
Endocytosis engulf substances and form vesicles (into the cell) (active transport)
Phagocytosis cell eats solid particles or big substances
Pinocytosis is the cell drinking, liquid substances
Exocytosis vesicles move through the plasma membrane, release the contents (outside the cell) (active transport)
Animal and plant cell organelles: nucleus, nuclear membrane, nucleoplasm, nucleolus, cillia, flagella, Rough Endoplasmic Reticulum, Smooth Endoplasmic Reticulum, Golgi apparatus, plasma membrane, vesicles, lysosomes, peroxisomes, centrioles, mitochondria, cytoplasm, cytosol, cytoskeleton, ribosomes, vacuoles, cell wall, chloroplasts.
Another name for a fertilized egg is zygote
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A species of plant produces purple or white flowers. The results of crossing a purple and a white flower and two white flowers are shown in the diagram. Which of the following terms best describes the purple flowers?
A. recessive
B. Dominant
C. hybrid
D. codominant
Answer:
Recessive
Explanation:
The crab Lynda tell Ella ya carries a pair of sea anemones on its claw. The crab uses the sea anemones stinging tentacles as protection and the sea an enemy obtain small food particles released by the crab as it feeds which type of symbolic relationship does this best illustrate
Answer: Mutualism
Explanation: The relationship between the crab and the sea anemone describes mutualism, a type of symbiotic relationship.
Mutualism describes the ecological interaction between two or more species that benefits both; typically involving the exchange of substances or services between both.
It plays a key role in ecology and is thought to have driven the evolution of much of the diversity currently in existence today.
What kind of things dissolve well in water and mean "love water"?
A growling stomach and the stimulation of hunger represent the
A
integumentary system and the endocrine system working together.
B
excretory system and the respiratory system working together.
с
digestive system and the nervous system working together.
D
muscular system and the skeletal system working together.
A growling stomach and the stimulation of hunger represent the digestive system and the nervous system working together. The correct option is c.
What is hunger?Hunger is primarily a biologically induced desire for food, which is required for survival.
Hunger can thus be regarded as a quantifiable biological trait of humans that predicts the willingness to eat as well as the amount of food consumed.
During fasting, the stomach secretes the "hunger hormone" ghrelin to promote food intake.
Ghrelin stimulates appetite by activating its receptor GHSR1a in the brain's hunger sensing neurons, and thus represents a promising avenue for the development of anti-obesity treatments.
A growling stomach and the stimulation of hunger represent the digestive and nervous systems collaborating.
Thus, the correct option is C.
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Which organ system supplies the body with oxygen? *
Answer: It would be the resperatory system. Your lungs are the main part of that.
Explanation:
Answer:
The respiratory system
Explanation:
The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. It consists of the nose, larynx, trachea, diaphragm, bronchi, and lungs.
Bart thinks mice exposed to microwaves will get stronger (maybe he's been reading too much Radioactive Man). You decide to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to 10 other mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse's food. found that 8 out of 10 of the microwave mice were able to push the block. 7 out of 10 of the mice without microwaves were able to do the same.
identify
1. control group
2. independent variable
3. dependent variable
4. what are some of the mentioned control variables?
5. what should bart's conclusion be?
Answer:
Control group = mice that had not been exposed
Independent variable = Mice receiving radiation
Dependent variable = Number of mice that are able to push the block of wood.
Control variables = Health of mice, mass of block
Radiation does not have effect on strength of the mice
Explanation:
In an experiment the variable which changes with respect to the other variable is called the dependent variable and the other variable is called the independent variable.
The control group is the group that does not receive treatment which is used to compare the effect of the treatment.
The control variable is another variable that must be held constant when performing the experiment.
Here the
Control group = mice that had not been exposed
Independent variable = Mice receiving radiation
Dependent variable = Number of mice that are able to push the block of wood.
Control variables = Health of mice, mass of block
It was found that 8 out of 10 of the microwave mice were able to push the block. 7 out of 10 of the mice without microwaves were able to do the same. This means that there was no significant difference hence, the conclusion drawn should be that radiation does not have any effect on their strength.
What is ONE major difference in the problems associated with obtaining measurements on the sizes or densities of animal populations versus plant populations?
I think one major difference with that is that animals can move around, go distances in search for food or mate, and thus make the animal densities per geography vary greatly. Birds migrate regularly, so their population densities tend to vary with seasons. Their mobility also depends on the availability of food, so animals go away if there are no food in the area.
Plants on the other hand don't move around faster (they can migrate by reproduction: it's their seeds moving around). Thus their densities tend to be more constant per season/life cycle.
How are the pulmonary arteries and veins different from the arteries and veins of the rest of the body, in terms of the kind of blood they carry?
The Pulmonary Arteries are responsible for carrying low-oxygenated blood from the right ventricle of the heart to the lungs and the Systemic Arteries are responsible for transporting oxygenated blood from the left ventricle of the heart to the rest of the body while the Pulmonary Veins are responsible for carrying oxygenated blood from the lungs to the left atrium of the heart and the Systemic Veins are responsible for carrying low-oxygenated blood from the body to the right atrium of the heart.
Meiosis I involves separation of homologous chromosomes but meiosis II involves separation of chromtids.
Answer:
Meiosis I: in meiosis I there is pair of chromosomes called homologous chromosomes which are to be seperated so one of that two chromosomes right pole of the cell and the second one goes to the left pole so each pole gets a chromosome with two sister chromatids.
Meiosis II: While in meiosis II homologous pair is not formed and single array of chromosomes are arranged to form metaphase plate as formed in Mitosis so, when the spindle fibres contracts each sister chromatids went to their respective poles.
Explanation:
A Venn diagram is used to compare and contrast different topics. The items that are unique to each topic are represented in the separate sections of the circles, and the items that are common to both topics are represented in the center overlapping sections. Harlow creates this Venn diagram comparing and contrasting endothermic and exothermic processes.
NEED ANSWER ASAP
Two overlapping circles are labeled on the left endothermic and on the right exothermic. In the left circle are labels requires energy and examples. In the right circle are labels releases energy and examples. In the overlap is the label involve energy.
What can be added to the Examples section of each circle?
Endothermic: ice melting into water, and a heat pack becoming warm
Exothermic: a glow stick glowing, and fireworks exploding
Endothermic: ice melting into water, and an instant ice pack turning cold
Exothermic: fireworks exploding, and gasoline burning
Endothermic: a glow stick glowing, and a heat pack becoming warm
Exothermic: an instant ice pack turning cold, and ice melting into water
Endothermic: gasoline burning, and an instant ice pack turning cold
Exothermic: ice melting into water, and an instant ice pack turning cold
Answer:
A
Explanation:
I took the quiz
Answer:
The correct answer is B. The other person who answered is wrong.
Explanation:
I took the quiz and did the answer that the other person said and it was wrong. Please don´t make the same mistake I did. The answer is B. Trust me.
What would likely happen if a lion's prey wasn't available?
Answer:
It takes around to weeks for a lion to starve, or become starving. Lionesses do most of the hunting, lions are much lazier. When a lion begins to starve it will kill nearly anything to satiate it's hunger. A lot of like other creatures and predators in the wild.
Explanation:
Which best explains a way of protecting water for human consumption?
Which body system assists the respiratory system in the exchange of chemicals within the body's cells?
O A. circulatory
B. reproductive
O C. excretory
D. digestive
( ENVIRONMENTAL SCIENCE DUE TODAY)
Some people argue that because Earth's resources are ultimately limited, nonstop economic growth is
A. not a problem
B. inevitable.
C. not sustainable.
D. highly desirable.
Answer:
Highly Desirable. DExplanation:
Hope this is correct. Good luck.What is the difference between lipid hormones and protein hormones?
a. Protein hormones diffuse directly through the target cell and begin a signal transduction pathway with a series of chemical
messengers or enzymatic reactions of the target cell.
b. Lipid hormones diffuse directly through the target cell and begin a signal transduction pathway with a series of chemical
messengers or enzymatic reactions of the target cell.
c. Lipid hormones bind to a receptor to enter the target cell and begin a signal transduction pathway with a series of chemical
messengers or enzymatic reactions of the target cell.
d. Protein hormones bind to a receptor to enter the target cell and begin a signal transduction pathway with a series of chemical
messengers or enzymatic reactions of the target cell.
Answer:
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Answer #14 and will mark brainliest
Answer:
The populations of different artic animals would start to decrease because of the lack of land and food.
Why are subduction zones not commonly found at convergent continental-continental boundaries?
Answer:
the subduction zone is commonly found in convergent continental-continental boundaries since it is where two continental crusts meet, and the force forces one crust to subduct under another one.
Explanation:
One cause of muscle soreness during exercise is
Answer:
Over-straining yourself or changing workouts routines
Explanation:
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Chemical, off course.
And maybe Kinetic because we are doing movements.
Answer:
Chemical is one
Explanation:
Because "Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules." There is chemical energy in the food we eat.
Select the part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
Answer: The nucleus
Explanation: It directs the cell's activities in the plant and animal cells.
The part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell is the nucleus. It directs the cell's activities in the plant and animal cells.
What is the short definition of a plant cell?
Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.
Roots, stems, leaves, flowers, and reproductive structures are only a few of the major classes of cells and tissues that are formed when plant cells differentiate from undifferentiated meristematic cells, which are similar to the stem cells of animals. Nucleus part main job is to direct a plant cell's activities by sending instructions to different parts of the cell.
Therefore, The part whose main job is to direct a plant cell's activities by sending instructions to different parts of the cell is the nucleus. It directs the cell's activities in the plant and animal cells.
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