Answer:
A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.
Explanation: A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
7 Which answer best describes
condensation?
A A gas changing into a liquid
B A liquid changing into a solid
C A solid changing into a liquid
D A liquid changing into a gas
Which of the following provides the best example of artificial selection?
O Scientists have noted that different varieties of birds on different islands have beaks
that are suited to each bird's available food.
O Leopard seals captured in Antarctica have thicker layers of blubber than harbor seals
captured in the Pacific Ocean.
O Hummingbirds have a long, narrow beak that enables them to reach food in the
deepest parts of a flower
O Racehorses that run fastest are the ones that are allowed to produce offspring, leading to faster racehorses.
Answer:
O think it's either B or D
. The small fish are not affected by the pesticide, but death occurs in the bird, at the top of the food chain. Why do you think that happens?
What do variations create?
Variations in species help them to adapt themselves to that particular environment and give them a chance of survival. For example, thermophilic bacteria are variants that are resistant to extreme temperature. They have a chance of survival in high temperate zones while others die.
Which characteristics do birds and mammals share? Check all that apply.
Both give birth to live young.
Both are endotherms.
Both have hair or fur.
Both produce milk to feed their young.
Both are vertebrates.
Answer:
B). Both are endotherms
Explanation:
Both birds and mammals are warm-blooded, which is the meaning of endotherm.
Hope this helps!
~PurpleMist
Answer: B
Explanation: brainlest
what type of scientist was Alfred Wegener?
Answer:
Meteorologist
Explanation:
Wegener was a meteorologist in the late 1800s to early 1900s
what is the scientific name of the family that the kiwi bird belongs to
Answer:
Kiwi are part of a group of largely flightless birds known as ratites.
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4. Thermal conduction works when two objects are in_______with each other. The_________
energy of the molecules causes them to bounce into each other, causing heat to move through
the object.
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Answer:
Hi how are you doing today Jasmine
List the cell organelles involved in energy generation for the cell.
Answer:
Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.
Soil formation is most influenced by. wind speed
air pressure
cloud cover
Rain fall
In humans, Brown eyes (B) is dominant to blue eyes (b). A hom ozygous brown-eyed man marries a blue-eyed woman. What are the genotypic and phenotypic ratios of their children’s eye color?
Genotype: __________________________________
Phenotype: __________________________________
Answer:
The ratio is 50%
Explanation:
Genotype:
Bb
Phenotype: Brown eyes
Please correct me if I am wrong :)
Answer:
3 of the boxes have Capital b and only 1 box have lower case b
Explanation:
summarize the future use of dna technology here in 20 words or more
Answer:
DNA testing has gone mainstream. The cost of DNA sequencing has reduced faster than Moore's Law. With an estimated cost of $100 in the foreseeable future, DNA sequencing becomes more accessible and opens up new use cases, such as wider adoption of population sequencing
Explanation:
A helpful shortcut our brain makes in scene recognition is to assume that lighting comes from:
Answer: A. Above
Explanation:
Scientists believe that in order for humans to see things, the brain has to make certain assumptions which are done based on previous scenes that it has interpreted before because the eyes do not provide it with complete data. .
One of those assumptions is that light comes from above which is why the shape of a picture can change depending on the lighting in it.
How will water volume, incline gradient, and temperature affect the energy
of a stream?
Answer: Water Volume: The volume of water(discharge) in a stream affects the energy(velocity) of that stream. As the volume of the water in the stream increases, the velocity increases. ... Incline gradient: The incline gradient is also known as the slope of the stream.
Explanation:
THe video uses an example of cheerleaders at a sporting event,
building a pyramid as a definition of isostatic adjustment
A: True
B: False
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Why is suburban sprawl tightly linked with environmental problems caused by
transportation?
A. Commuters who live in suburbs are dependent on automobiles that emit air
pollution.
Х
B. Commuters who live in suburbs are more likely to walk and suffer from air
pollution
C. Commuters who live in suburbs are dependent on mass transit systems that
emit air pollution.
D. Commuters who live in suburbs are dependent on mass transit systems that
add to water pollution.
Mountains, volcanoes, and earthquakes may occur when one plate-
A pushes apart
B erodes
C breaks open
D pushes against another plate
Answer: d
Explanation:
D trust me
6 How can you determine the origin of the oxygen released by photosynthesis?
Answer:
because all green plants release oxygen and non- green plants do not release oxygen.
Explanation: One of the first uses of an isotopic tracer in biology was in the determination of the source of the oxygen produced by photosynthesis. Using a heavy isotope of oxygen, 18O, to label one of the two reactants in the photosynthetic process, Samuel Ruben and collegues at UC Berkeley were able to determine that the oxygen gas came not from carbon dioxide, but water.
In order to extract DNA from strawberry cells, what will need to happen at the cellular level?
Answer:
Tiene que romperse la membrana plasmática para poder acceder al núcleo de la célula y posteriormente romperse también la membrana nuclear para dejar libre al ADN
Explanation:
Large cells have more volume on the inside and less space on the outside. (Compared to a smaller cell) Because of this, large cells have trouble;
A) dividing
B) producing daughter cells
C) moving materials in and waste products out
D) making copies of their DNA
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Answer:
C. They have trouble moving materials in and waste products out
What was the name of the supercontinent 2million years ago?
What are some benefits to evolutionary adaptations?
Answer:
1.A new species
2.Adding to world population
3.More to learn
Explanation:
In the laboratory, yeast cells are usually grown at a temperature of 25oC. A scientist wanted to determine if yeast cells would reproduce faster or slower when the temperature was dropped to 15oC. The same number of yeast cells were placed in the same medium with the same amount of nutrients. One sample was kept at 25oC and the other one was kept at 15oC. The number of yeast cells was counted every hour for an eighteen hour period.
Answer:
This question is incomplete, however, it is asking to identify the following variables:
Independent variable: Temperature
Dependent variable: Number of yeast cells
Constants: same amount of nutrients, same number of yeast cells, same medium
Explanation:
- Independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable effect. In this experiment, the TEMPERATURE at which the yeast are kept is the independent variable.
- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable that is measured by the experimenter in the experiment. In this case, The NUMBER OF YEAST CELLS was counted, hence, it is the dependent variable.
- Constants are variables that are kept unchanged or same for all groups by the experimenter in order not to influence the experiment's outcome. In this case, the CONSTANTS are: same amount of nutrients, same number of yeast cells, same medium etc.
Name Cu2(SO4)3 (transition metal).
Answer:
Cooper sulphate
Explanation:
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Nerve labeling help meee plsss
Answer:
(1) Synaptic Vesicle
(2) Vesicle Releasing Neurotransmitter
(3) Axon Membrane
(4) neurotransmitter
(5) Synaptic Cleft
(6) Postsynaptic Neurotransmitter Receptors
Explanation:
2.3/6.E.2.4 Test 1 2 of 30
Which element causes soil to appear red?
O A. calcium
B. iron
c. magnesium
D. silicon
Answer:
B
because iron appears the color red