Answer:
An experimental group
Explanation:
An experimental group is a test sample or the group that receives an experimental procedure. This group is exposed to changes in the independent variable being tested.
Define 'ecosystem'.
with explanation
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carbon atoms.in organic molecules bond to aroms of hydrogen and
Answer:
Carbon binds to oxygen, hydrogen, and nitrogen covalently to form the many molecules important for cellular function. Carbon has four electrons in its outermost shell and can form four bonds. Carbon and hydrogen can form hydrocarbon chains or rings
List some characteristics of matter.
Answer:
Solid Liquid gas and plasma
Explanation:
These are characteristics of matter
Answer:
The particles of matter are very very small.
The particles of matter has space between them.
The particles os a matter are constantly moving.
The particles of matter attract each other
Explanation:
How could the tomato plants response to being eaten by a hornworm caterpillar be described as a function of homeostasis
Answer:
First, it's important to get clear on the meaning of Homeostasis.
In simple terms, it refers to the capacity of a living thing (plant or animal) to react or behave in such a way that enables it to continue to survive irrespective of changes in its immediate environment.
Explanation:
In humans, the body has a system which reacts to the external stimuli of temprature. When the weather is hot, the brain through a sequence of electrical and chemical signals tells the skin to open up the pore, then we experience venting of sweating which cools the body and regulates internal heat. This is an instance of homeostasis.
This does not mean that the plant or animal is completely immune to such external changes.
In the case of the tomato plant, the hair on the leaves and stem of the plant is an example of Homeostatic responses which have evolved over the years to discourage predators such as the hornworm caterpillar from defoliating the plant.
Cheers!
Answer:
Please find the detailed explanation to this question below.
Explanation:
Firstly, homeostasis is the ability of an organism to use internally-controlled mechanisms to maintain a stable internal environment despite changes in its external environment. Homeostasis is an important phenomenon necessary for the survival of living organisms.
Hornworms caterpillar are notorious pests of tomato plants. However, tomato plants have been found not to stand still and get devoured. The plant responds to being eaten by these caterpillars by releasing chemicals that distracts their attention from the host plant and instead the caterpillars feed on one another.
Getting fed on by plants can disrupt the internal structure of plants, hence, the release of this defense chemicals by tomato plants is physiologically controlled in response to environmental stress i.e. pests, and it is done in order to maintain a stable internal condition. Therefore, the response of tomato plants to caterpillar pests is a FUNCTION of HOMEOSTASIS.
A conclusion may be stated
a. immediately after the problem has been identified.
b. after obtaining the results of an experiment.
c. only after an experiment has been run over and over again to
ensure accuracy.
d. after several qualified scientists agree.
Which of the following is NOT evidence for Continental Drift Hypothesis? Group of answer choices A. Continents fitting together like massive jigsaw puzzle pieces. B. Identical rock types found of continents separated by vast oceans. C. Glacial/artic conditions found in regions where snow and ice does not exist today. D. Ocean trenches/spreading centers mapped. E. Matching fossils separated by vast oceans.
Answer:
The correct answer would be D, Ocean trenches/spreading centers mapped.
Explanation:
I hope this helps you. :)
The statement that doesn't describe evidences as regards Continental Drift Hypothesis is : B: . Identical rock types found of continents separated by vast oceans.
Continental drift can be regarded as theory which gives explanation about the shifting and changing of position of continents on Earth's surface. This theory was set set up by Alfred Wegener, in the year 1912, continental drift help us to understand the similarities between look-alike animal as well as plant fossils, and how they were found on different continents.Another evidence of this is how continents fit together like massive jigsaw puzzle pieces
Therefore, option B, is correct
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An __________ gland is a ductless gland that empties its hormone into the extracellular fluid, from which it enters the blood.
Explanation:
An endocrine/exocrine gland is a ductless gland that empties its hormone into the extracellular fluid from which it enters the blood.
Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms? a. temporal isolation b. behavioral isolation c. habitat isolation d. gamete isolation
The isolation practiced by dog breeders to maintain the purity of breeds is most similar to behavioral isolation
(option b). is correct.
How do we explain?Behavioral isolation is a reproductive isolating mechanism in which individuals of different species or populations have different behaviors or mating rituals that prevent them from successfully mating with each other. In the case of dog breeders, they keep dogs of different breeds apart during their fertile periods to prevent them from mating and producing mixed-breed offspring.
This behavioral isolation helps to maintain the purity of the specific breeds.
Therefore, (option b). is correct.
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Can traits of organims be improved? Explain.
Answer:
yaa traits of organisms be improved.....☺️☺️☺️
Hewo random peps ;-; I ish back with more questions so heres what I think the answers are. 1. A C or D 2. C or D 3. A 4. A or D
The answer for 1 is metamorphism, the answer for 2 is plate tectonics, the answer for 3 is iron sulfide, and the answer for 4 is connected to mainland
The sun produces energy from matter in its core through the process of _
Answer:
I believe the process is called necular fusion.
please correct me if I’m wrong :)
Explanation:
CAN SOMEONE HELP ME PLEASE I REALLY NEED TO DO THIS HOMEWORK AND THANKS
Answer:
Yeah is it multi -choice?
Explanation:
What volume is shown in the graduated cylinder below?
Graduated cylinder
A. 20.4 mL
B. 24.0 mL
C. 28 mL
D. 30 mL
This frog is about to be food for a snake. Which type of nutrition does the snake use, and which type of nutrition does the frog use? Justify your answer.
Answer:
Both snake and frog are vertebrates and non vertebrates animals.
Explanation:
Snake is a reptile and almost used vertebrates and non-vertebrates in their nutrition. There are few species that are specialized in egg feeder, snake is one of that.
Most of the species has to fed 1 2 in a week. Snake used to eat most pups, mice, rabbits and ducks. Both frog and snake are carnivores. They eat prey, insects, mammals. Both snake and frog comes under the food chain. Frog eaten by snake or snake can eat frog.
Answer:
All animals are other-feeders. Their cells cannot make food for themselves like plant cells can. They gain energy and nutrients by eating other living things. The snake will get energy and nutrients by eating the frog. Frogs get energy and nutrients by eating other living things, such as insects and worms.
examples of phototaxis
Answer:
phytoflaggellates, e.g. Euglena, and photosynthetic bacteria.
Explanation:
Answer:
a bug crawling towards sunlight
Explanation:
PLEASE HELP!!!!! A black swan and white swan breed and produce offspring that are gray in color. What is the most likely explanation for this happening? A. The alleles for white and black have incomplete dominance, and they blend producing gray feather. B. It is a mutation, and there is no scientific way to explain the appearance of the gray feathers. C. It could be a situation of codominance producing the gray feathers from black and white alleles.
Answer: C
Explanation: All of them could be correct, but I think this is the correct answer. I’m only in middle school, so if your not rushing you may as well wait for someone else.
Answer:
La respuesta es
C. Podría ser una situación de codominancia produciendo las plumas grises a partir de alelos blancos y negros.
Explicación:
Ya que normalmente se expresará el alelo dominante, mientras que el efecto del otro alelo, llamado recesivo, queda enmascarado. Pero cuando hay codominancia, entonces ningún alelo es recesivo y el fenotipo de ambos alelos es expresado.
Which of the following is true about the Sun's radiation? A. It reaches the Earth only as ultraviolet light. B. It reaches the Earth with a wide range of wavelengths. C. It reaches the Earth with several frequencies and one wavelength. D. It reaches the Earth with several wavelengths and one frequency.
Answer:
It reaches the earth with a wide range of wavelengths
Explanation:
Answer:
B. It reaches the Earth with a de range of wavelengths.
Explanation:
Study Island
6
The energy of motion
(2 Points)
mechanical energy
kinetic energy
chemical energy
potential energy
Which is stronger, a cell wall or a cell membrane?
Answer: The cell wall is stronger.
Explanation:
leave absorb carbon dioxide from the air through
Answer:
Plant leaves have small openings, called stomata, all over their surfaces. The stomata open to absorb the carbon dioxide needed to perform photosynthesis. They also open to release the oxygen produced by this process.
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Pick one type of biologist, besides an ocean biologist, and describe what he or she studies. List three questions that biologist might ask about what he or she is studying.
Besides an ocean biologists we also have a Microbiologist. He or she studies micro-organisms.
A Few question they might as include
Importance of the courseWhere can they work after graduationWhat is the value of the course presentlyMeaning of MicrobiologyMicrobiology can be defined as that branch of science that is focused in the study of micro-organisms of all kinds and how they relate to man and his environment.
Microbiology is a field of study that deals with things like bacterial, viruses etc.
In conclusion, Besides an ocean biologists we also have a Micro biologist. He or she studies micro-organisms.
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A grassy meadow high in the Sierra Nevada Mountains of eastern California is known to support a variety of organisms. During the summers when grass is thick and lush, and wildflowers abound, butterflies take advantage of this abundant nectar source. Bears graze on the berries in shrubs at the edge of the meadow. Deer also forage at the edge of the meadow. In the early mornings, coyotes are known to prey on the squirrel and mouse populations that burrow into the meadow soil. A variety of birds prey on the butterflies and other flying insects, such as bees and wasps.
If the biomass of flowers that support the butterflies was known to contain 100,000 units of energy, and certain bird species were eating the butterflies that foraged on the flowers, what amount of energy, on average, could be expected to be transferred to the birds?
Group of answer choices
a)100
b1,000
c10
d10,000
e50,000
Answer:
b) 1,000
Explanation:
In a typical food chain as described in this question, flow of energy occurs from one organism to another when they feed/fed upon. As one organism feeds, energy gets transferred to it. However, only about 10% of the available energy in the lower trophic level gets transferred because majority of the energy (about 90%) is lost as heat during metabolic processes of the organism.
Hence, if a flower contains approximately 100,000 units of energy and is fed on by butterflies. 10% of 100, 000 = 10,000 units gets transferred to the butterflies.
Likewise, the butterflies gets fed on by certain bird species. 10% of the available 10,000 units of energy in the butterfly gets transferred to the birds.
= 10/100 × 10,000 = 1000 units of energy.
if B is the midpoint of AC, and AC=8x-20, find BC
Answer:
26
Explanation:
Answer:
4x - 10
Explanation:
Since, B is the midpoint of AC.
[tex]BC = \frac{1}{2} \times AC \\ \\ BC = \frac{1}{2} \times (8x - 20) \\ \\ BC = \frac{1}{2} \times 2(4x - 10) \\ \\ \huge \red{ \boxed{BC =4x - 10}}[/tex]
image above ^^^ plz help ASAP thanks :))
your answer is boron it has more valence electrons than the nitrogen atom
Help please!
What is the outcome of all chemical changes when two substances are combined?
A- A new substance forms with identical properties
B- The two substances release an odor
C- The two substances change color
D- A new substance forms with different properties
Answer:
D- A new substance forms with different properties
Explanation:
When a chemical change occurs, it causes the matter to form into a completely new substance. Because of this, the new substance will have different properties than the original substance. Options B and C are true for some chemical changes, but not all changes. Option A is incorrect because the substance has different properties than the original substance. Thus, Option D is correct.
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Hope this helps!
two systems interacting? What are the inputs and outputs of these systems?
EXPLAIN The scuba diver is a living system. The scuba gear, or self-contained
underwater breathing apparatus, is a system of air exchange. How are these
the body's response
. ,
Answer:
Breathing in human on land or during swimming or scuba diving, the human inhales oxygen and exhales carbon dioxide, These carbon dioxide molecules creates "air bubbles" that are then ousted into the water body. The diver at that point draws air from the pressurized air tank, and can inhale or breath. This permits the diver to remain submerged for any longer than only one inhale, and can travel deeper underwater.
Inside this framework, the Oxygen is primary input to the oxygen tanks, which are then utilized by the scuba diver. The diver would draw the oxygen from the tank considered as output in this system.
Match the term with the definition. Match Term. Definition Condensation A) A phase change from a solid to a gas Evaporation B) A phase change from a liquid to a gas Sublimation C) A phase change from a liquid to a solid Freezing D) A phase change from a gas to a liquid
Answer:
CBAD
Explanation:
I just took the quiz and got 100%
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PHOTOSYNTHESIS CHAR
SUNLIGHT
CARBON DIOXIDE
WATER
OXYGEN
PLANT SUGARS
MINERALS
Carbon dioxide enters the loves through stomatiy holes in the leaves
ientific
Calc
Examine the photosynthesis model above. What is a correct conclusion about the inputs and outputs of photosynthesis?
A)
without light energy from the sun, photosynthesis would still occur
ghlight
Time
maining
0:44:39
de Tools
B)
oxygen is an input into photosynthesis, carbon dioxide is an output
o
carbon dioxide is the source of energy, oxygen is the chemical energy
produced
sunlight is the source of energy: plant sugars are the chemical energy
produced
D)
Answer:
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Explanation:
ini melawanang ini Dion LG belajar tema yang diupload oleh penggunanya jadi anda tidak perlu lagi sedang belajar kesungguhan dan keikhlasan kepada seorang kawan yang penulis pandang telah tenggelam di antara mereka yang nomor satu di antara mereka yang nomor
Most often the results of an experiment lead to Group of answer choices theories more questions publications in scientific journals well-developed controlled experiments
Answer:
theories, more questions, publications in scientific journals
Explanation:
An experiment may be defined as a procedure which is carried out to refute, support, or validate a certain hypothesis or theories. Such experiments provides insight into the cause and the effect of a hypothesis by showing what outcome comes or results when some particular factor is being manipulated by the experimenter.
It is considered a scientific procedure which is undertaken to test a hypothesis or to make some discover or sometimes to demonstrate a known fact.
The results of these experiments may lead us to new question or new findings or theories. It result of the experiments may also be published in an scientific journal for the readers and scientist.
Staphylococcus aureus (remember that an organism’s scientific name can also be written with the genus name abbreviated—in this case, S. aureus) is a bacterium, one of the groups of microorganisms. Although the different groups of microorganisms share some similarities, there are several important differences that distinguish each group. Drag each of the following statements to the appropriate bin to indicate whether it is a characteristic of bacteria archa fungi, or viruses.1. Derive nutrition from organic or inorganic sources or conduct photosynthesis2. Have cell walls that contain peptidoglycan3. Not typically associated with human disease4. Found in extreme environments5. Eukaryotic6. Can be unicellular or multicellular7. Cannot survive outside a host cell8. Can be seen only with an electron microscopeA. BacteriaB. ArchaeaC. FungiD. Viruses
Answer:
Viruses: Found in extreme environments. Cannot survive outside of a host cell, can only be seen with an electron microscope
Fungi: Obtain nutrition from organic or inorganic sources or carry out photosynthesis. It is not usually associated with human diseases. Eukaryote: It can be unicellular or multicellular.
Bacteria: They have cell walls that contain peptidoglycan. Found in extreme environments (via spores)
Explanation:
In the part of the answer, the answer was given by grouping the different characteristics of the microorganisms, classifying them into three groups.
Viruses are considered microorganisms that need the replicative machine to reproduce their RNA or DNA, this is how it is doubted whether they are living organisms or not.
Fungi belong to a very broad group of subtypes, but they all refer to the fungi kingdom, they are in the form of spores in the soil or in the air, those fungi that are considered pathogens for humans, such as the generators of histoplasmosis, or blastomycosis. Most fungi are not pathogenic to our body, so some are edible, such as yeast.
On the other hand, and finally we have bacteria, which are a family that is classified into many groups according to their genus and species, their shape is what determines their nomenclature, such as those coconuts, which are grouped together in a of bunch of grapes and are called thus streptococcus in synonymous to this method of colonization and form. Many bacteria are typical of our commensal flora or microbiota, others are not, thus generating opportunistic infections or severe infections.