Explanation:
Euglena are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyta. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglena usually live in quiet ponds or puddles.
Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black.
The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like structures throughout the cell. Color the chloroplasts green. Euglena also have an eyespot at the anterior end that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color the eyespot red.Euglena can also gain nutrients by absorbing them across their cell membrane, hence they become heterotrophic when light is not available, and they cannot photosynthesize.
The euglena has a stiff pellicle outside the cell membrane that helps it keep its shape, though the pellicle is somewhat flexible and some euglena can be observed scrunching up and moving in an inchworm type fashion. Color the pellicle blue.
In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities. The nucleolus can be seen within the nucleus. Color the nucleus purple, and the nucleolus pink.
The interior of the cell contains a jelly-like fluid substance called cytoplasm. Color the cytoplasm light yellow. Toward the posterior of the cell is a star-like structure: the contractile vacuole. This organelle helps the cell remove excess water, and without it the euglena could take in some much water due to osmosis that the cell would explode. Color the contractile vacuole orange.
The cell parts of euglena help it stay alive by the fact that they possess chloroplasts which facilitate them to make their own food by photosynthesis.
What is a Unicellular organism?A unicellular organism may be characterized as a type of organism that significantly consists of a single cell, unlike a multicellular organism that consists of multiple cells. This single cell carries out all of the functions needed by the organism.
Euglena possesses a mixed type mode of nutrition as it can also absorb food from its environment. They move through a flagellum which is a long whip-like structure that acts like a little motor and provides movement.
Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod-like structures throughout the cell. In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities.
Therefore, the cell parts of euglena help it stay alive by the fact that they possess chloroplasts which facilitate them to make their own food by photosynthesis.
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4. How have the xylem vessels allowed plants to adapt to living on land?
Answer:
Plant adaptations to life on land include the development of many structures a water repellent cuticle, stomata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, sexual organs.
Explanation:
brainliest plz :)
Identify an organization whose mission is to preserve natural habitats.
Answer:
Defenders of Wildlife
Explanation:
founded in 1947, dedicated to protection and restoration of imperiled species.
A worm would stand a poor chance of being fossilized because ________.
A) worms have been rare during the geologic past
B) worms have no hard parts
C) worms contain no carbon-14
D) all of these
A worm would stand a poor chance of being fossilized because worms have no hard parts.
What is fossil?
An animal or plant from a previous geologic era that has been preserved in the Earth's crust as a fossil, remnant, impression, or trace. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the world.
Only a small percentage of extinct species have been preserved as fossils, and often only those with a sturdy skeleton are capable of doing so. A calcareous skeleton or shell is present in the majority of major groups of invertebrate creatures (e.g., corals, mollusks, brachiopods, bryozoans).
Other types have silicon dioxide or calcium phosphate shells (both of which are found in the bones of vertebrates). A fast burial following deposition may leave these in a shell or bone.
Therefore, A worm would stand a poor chance of being fossilized because worms have no hard parts.
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When working with bacteria, you will --
O only culture known, nonpathogenic bacteria
O only culture pathogenic bacteria.
O dispose of the bacteria by taking them home with you.
O contaminate all cultures.
Answer:
Only culture known, nonpathogenic bacteria.
Explanation:
Pathogenic Bacteria is bacteria that can cause diseases, so if you culture a pathogenic bacteria you could cause an out-break of a disease or illness.
Culturing is the process of basically expanding a bacteria, or making a family that reproduces itself, so you would want a disease or fatal bacteria to reproduce, causing an outbreak.
suggest why a laborer needs more energy in a day than a office worker
Answer:
a laborer is someone who constantly does physical work which exerts more energy then doing paper work or just work in general in an office so the laborer needs more energy to do the hard physical work then the office worker
Answer:
A labor requires more energy to continuously do work whereas an office worker does work from a single place, the sedentary work environment of an office worker requires less energy and hence less carbohydrates.
hope it help mark as brainlist
List 3 Examples of data that are both quantitative and qualitative.
Answer:
qualitative data - Hair color , Blood type Ethnic group
quantitative data - number of students in class , height , weight
Explanation:
hop it helps
How do you think Romeo and Juliet’s ages will influence the course of events?
The leafy sea dragon is able to _________ itself.
Every cell has a cytoplasm
Answer:
yes. but what are you asking
what does dna contain to make a new cell
Answer:
Explanation:
All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information. It is often compared to a blueprint, since it contains the instructions to construct other components of the cell, such as proteins and RNA molecules.
Answer:
A cell nucleus.
Explanation:
That is where the DNA divides into two.
According to US Energy Information Administration data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1500 at current gas prices. What is one reason for these differences?
Answer:
transportation
Explanation:
looking at nighttime satellite photos that show dark landscapes illuminated by glowing urban dots. On the surface, these seem like clear evidence of city dwellers' oversized energy footprints.
And when comparing big cities and small towns directly, a Philadelphia, Pennsylvania, obviously dwarfs the power consumption of a Philadelphia, Tennessee Urban and rural populations use energy differently, though, which complicates such broad comparisons.
Despite hosting regular traffic jams, cities win the head-to-head efficiency matchup in transportation thanks to their mass transit systems and denser layouts, which promote walking and bicycling. Small-town and suburban residents usually have to drive themselves to get around, which isn't cheap.
According to EIA data, urban U.S. households own an average of 1.8 vehicles each, compared with 2.2 for each rural household. Urban families also drive about 7,000 fewer miles annually than their rural counterparts, saving more than 400 gallons of gasoline and roughly $1,300-$1,400 at current gas prices.
( I hoped this helped! :D )
Answer:
Urban populations make use of mass transit.
Explanation:
Urban populations make use of mass transit. This cuts down drastically on the amount of money spent on gasoline and auto maintenance.
Both lipids and carbohydrates can be used by the cell as
A
sources of energy.
B
replacements for salts.
с
building blocks for RNA
D
catalysts for metabolic reactions.
Both lipids and carbohydrates can be used by the cell as sources of energy.
How do cells use lipids carbohydrates and proteins for energy?
Carbohydrates are used for energy (glucose).
Fats are used for energy after they are broken into fatty acids.
Protein can also be used for energy, making hormones, muscle, and other proteins. Broken down into glucose, used to supply energy to cells.
Thus, Both lipids and carbohydrates can be used by the cell, the option
"A" is correct.
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Protons have a positive charge, electrons have a negative charge, and neutrons have no change. Given
information, if an atom is comprised of 5 protons, 4 electrons, and 5 neutrons, what is the charge (if any)
on this molecule?
A.It does not have a charge because there are equal amounts of neutrons and protons
It needs to lose a neutron and a proton so that all parts of the atom are equal
It has a positive charge because there are more protons than electrons
It has a negative charge because there are more neutrons and electrons than protons
PLEASE HELP ASAP!! WILL MARK BRAINLIEST TO THE 1ST ONE WHO ANSWERS CORRECTLY! Some organisms have a large geographic range. For example, the Norway rat lives on every continent except Antarctica. A population of Norway rats is the number of rats in one particular area. Do you think it’s scientifically possible for a population of Norway rats in North America to carry different genetic mutations than a population of Norway rats in Africa? Do you think it’s possible that they carry some of the same mutations? What types of information can scientists learn by studying the genomes of these two populations of rats?
Answer:
genomes compared and what can these findings tell us about how the overall ... genome sequences of different species — human, mouse, and a wide variety of other ... Comparative genomics also provides a powerful tool for studying ... alignment that the information that can be gained by comparing two genomes so yes it is possible
Explanation:
What is the sun made up of?
Answer:
Mostly hydrogen, some helium too and small amount of oxygen, carbon, neon, nitrogen, magnesium, iron and silicon
it is important for ______ to participate in conservation efforts.
A) government
B) business
C) citizens
D) educators
E) all of the above
Name 2 places were Archaebacteria can live
Answer:
such as volcanic vents
at the bottom of the sea
boiling mud around volcanoes
hot springs
A cube with sides 4m in length has a volume of 64 m^3. If each side of the cube is doubled in length what is the ratio of the new volume to the old volume ? A. 2:1 B.8:1 C. 5:1
Answer:
the answer is A: 2:1
Explanation:
from,
the volume will be doubled
it will be
2 (64)/64
2:1
brainliest maybe???!!!
2. Science begins with an
Answer:
the answer is...
they start with observations on the object, then make a hypothosis!
hope this helps:)
Explanation:
Feral cats kill large numbers of native wildlife in Australia. One feral cat can
kill up to 50 native animals in one night. Which technology would allow
environmental scientists to take pictures of the cats' nighttime activities?
A. Environmental DNA (EDNA) surveillance
B. Acoustics
0
C. Gel electrophoresis
0
D. Unmanned aerial systems (UAS)
SUBMIT
Answer:
D. Unmanned aerial systems (UAS)
Explanation:
Answer:
Unmanned aerial systems (UAS)
Explanation:
AP3X
3 examples of abiotic factors
Answer:
rock
water
soil
Explanation:
these items have never lived and relate to an environement :)
All cells contain _______, ________, and __________
1) cytoplasm, membranes and genetic material
2) membrane, genetic material and chloroplasts
3) cytoplasm, genetic material and cell wall
4) cytoplasm, membrane and water vacuole
the answer is letter A
Although cells are diverse, they all have certain parts in common: plasma membrane, cytoplasm, ribosomes, and DNA.
Pollution
10. Discuss why people choose to pollute the environment instead of being environmentally friendly.
11. In this situation identify the "commons"
I can’t find the answer to the second question in this article called tragedy of the commons by garrett hardin 1969
Answer:
Explanation:
I found an exaple
Solutions to the tragedy of the commons include the imposition of private property rights, government regulation, or the development of a collective action arrangement. Historical examples of tragedies of the commons include the collapse of the North Atlantic Cod fisheries and the extinction of the dodo bird.
maybe this well help as well
human activity is causing environmental degradation, which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution.
which helath professionals are least likely to face risk factors in their work that could increase their chances of getting cancer?
A.Scientists who work with toxic chemicals
B. Therapists who operate radiation machines
C. Nurses who treat patients with viral infections
D. Researchers who study DNA replication
Draw a flowchart that explains how Tom’s nervous system controls his actions. As part of the flowchart, write one or two sentences describing how the nervous system is involved in each of these steps:
Tom steps into the haunted house.
Tom feels his heart pumping and his breathing speed up.
Tom jumps when he sees the costumed character.
Tom runs out of the haunted house.
Answer:
Tom’s brain makes a voluntary decision to walk into the haunted house. His brain communicates this message to his skeletal muscles, so he can step inside.
Tom’s sympathetic nervous system causes a fight or flight response, resulting in his increased heart rate and breathing.
Tom is startled when a costumed character jumps out at him. His reaction is a reflex caused by his nervous system.
Tom’s brain makes a voluntary decision to run out of the haunted house. His brain communicates this message to his skeletal muscles.
Explanation:
Answer:
Tom’s brain makes a voluntary decision to walk into the haunted house. His brain communicates this message to his skeletal muscles, so he can step inside. > Tom’s sympathetic nervous system causes a fight or flight response, resulting in his increased heart rate and breathing. > Tom is startled when a costumed character jumps out at him. His reaction is a reflex caused by his nervous system. > Tom’s brain makes a voluntary decision to run out of the haunted house. His brain communicates this message to his skeletal muscles.
Explanation:
If a parent cell has 16 chromosomes, how many chromosomes will each daughter cell have after mitosis? Explain.
Answer:
16
Explanation:
HELP ME PLZ .I HAVE ONLY 10 minutes
They have been stuck in this puddle for awhile. Why has not the water percolated?
A.They can’t soak into the street since it is made of stone.
B.The sun isn’t shining, so they can’t go up into the sky.
C.They are not on a hill, so they can’t flow downhill
Which term refers to a variable that is not allowed to change during an experiment? O A. Random variable O B. Dependent valable O C. Hypothetical variable D. Controlled variable
Answer:
controlled variable
Explanation: i know this bc i just got it wrong lol
List 3 things you have learned from the state officer visit.
Well state officers teach you many skills, like self defense , firearms training, and first aid skills and knowledge hope i helped.
How does glucose provide energy to both plants and animals?
Answer:
Explanation:
Well it is basically sugar which can be turned into energy and calories, which help sustain the organism.
