Answer:
No
Explanation:
According to science, human beings can't observe cells and other tiny organisms with our naked eyes coz our eyes aren't strong enough to observe but we can use a microscope which has strong lenses.
As cell is a tiny microscopic structure, it can be visible under microscope only.
what are the types of cell ?Cell is the basic unit of any living organism, can be observed in animal, plant, microbes etc; Bacteria are unicellular in nature, all higher eukaryotic organisms are multicellular in nature like plants and animal cell.
The simplest type of cells are prokaryotic cells have a cell membrane, cytoplasm where all of the metabolic processes occur, ribosomes where protein synthesis occur, and nucleoid which carry genetic information, reproduce by binary fission.
The eukaryotic cells have cell membranes, cytoplasm, ribosomes, and nucleus a house of DNA, rough endoplasmic reticulum for protein assembly, smooth endoplasmic reticulum for lipids, Golgi apparatus for protein sorting and exporting.
It has mitochondria energy house, a cytoskeleton for structure and passes information, and lysosomes or peroxisomes for digestion of waste, vacuoles for water storage, chloroplasts for photosynthesis.
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In North American forests, two species of birds, nuthatches and brown creepers, forage on the same trees for insects. Brown creepers feed on insects found near the bottom of the tree trunk, while nuthatches feed on insects in the top part of the tree. The difference in foraging behavior most likely affects the nuthatches and brown creepers by -
A) Establishing dominance between the birds for nesting sites
B) Reducing competition between the birds for resources
B) Allowing the birds to avoid many types of predators
C) Preventing the birds from interbreeding with each other
Answer:
Allowing the birds to avoid many types of predators.
The kidneys are an essential organ for which system?
Excretory System
Excretory System
Reproductive System
Reproductive System
Immune System
Immune System
Respiratory System
Answer:
Explanation: excretory system
The kidneys do a lot, but their most important job is to take waste out of the blood and make urine . The urinary tract takes this waste out of the body when a person
Which is the best hypothesis for the scientific question "How does light intensity affect the rate of photosynthesis?"
O Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis.
O Light intensity has no effect on the rate of photosynthesis,
• If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Light intensity has an impact on the rate of photosynthesis.
Answer: • If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Explanation:
its good to think about the hypothesis as an if then statement. Example: If the independent variable(light intensity) is changed than the dependent variable(rate of photosynthesis) with be effected in this way.
What are reactants in a chemical reaction?
outputs
substances that are formed by reactions
substances that speed up reactions
inputs
[tex] \large \mathfrak{Answer : }[/tex]
Reactants are the substances that takes place in a chemical reaction, therefore the correct option is :
D. Inputs
Answer:
substance that speed up reaction inputs
I need help with this problem please help me I’ll mark you as a brainliest
Answer:
a) how nice his pig will be
b) his hypothesis is if he rubs his pig's belly and feed it candy it'll come nicer to him
c) the belly rub and candy
d) the pig's niceness or tolerance towards him
e) in conclusion, his hypothesis was correct, when he gave belly rubs and candy the pig was nicer towards him
f) the exact amount of belly rubs or maybe even what kind of candy used
Strawberry plants are able to reproduce by forming runners
a). What is the type of reproduction called?
Answer:
Axsexual reproduction.
Explanation:
Strawberry plants do not need two parents, it can reproduce by only a single plant, without involvement of chromosome change since the new plants get the same genetic makeup as its parent.
Function refers to the____job a ______is designed to do.
what happens to the gravitational force exerted by one object on another when the mass of the objects is doubled?
(they don't have science so)
Answer:
it will get destroyed because it over the mass if more mass
What are the subkingdoms in kingdom prokaryotae
Answer:
The Prokaryotae are further divided into two subkingdoms. These are called the Eubacteriobonta (which contains the so-called Eubacteria) and the Archaebacteriobonta (which contains the so-called Archaebacteria). This split arose from the research of Carl Woese.
How are acids and protons related? (1 point)
O An acid can donate protons to a base when they react.
Acids are substances that contain more protons than bases.
An acid can accept a proton from a base when they react.
Acids are substances that contain fewer protons than bases.
Answer:yes
Explanation:
An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.
Acids and protons are related in the sense that "acid can donate protons to a base when they react".
WHAT IS AN ACID?
Acids, according to Bronsted-Lowry definition, are substances/compounds that can donate hydrogen ions (protons). An acid donates protons (H+) to a base when they react in a neutralization reaction. The donor acid becomes a conjugate base while the recipient base becomes a conjugate acid. For example;HCl + NaOH → NaCl + H2O
In this reaction, HCl acid donates a proton (H+) to hydroxide ion (OH-) to form water (H2O).Therefore, acids and protons are related in the sense that "acid can donate protons to a base when they react.
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• Explain how seismic waves affect Earth’s surface.
is this statement true or false?
Answer:
false
Explanation:
individuals from different populations can be genetically more similar than individuals from the same population.
Please help. I don’t know how to fill this out.
What mnemonic device are you supposed to
remember about the structure of biomolecules?
Answer:
Mnemonic Device: Double the GatorADEs, GUArantee Nine's purity Explanation:
to remember the double-ringed purines, Adenine & Guanine
Double the GatorADEs, Guarantee Nine's purity are the mnemonic device used to remember about the structure of biomolecules.
What are biomolecules?
Biomolecules are defined as any of the many compounds created by cells and living things.
They are the fundamental components of all life things.
They are also be defined as the building elements of life and play crucial roles in living things.
There are basically four types of biomolecules.
CarbohydrateLipidsProteinsNucleic acidBecause they enable organisms to grow, endure, and reproduce, biomolecules are necessary for life. They contribute to the growth of creatures, from simple cells to sophisticated living entities like people, by interacting with one another. Their diverse architectures and shapes allow them to perform a range of purposes.
Thus, Double the GatorADEs, Guarantee Nine's purity are the mnemonic device used to remember about the structure of biomolecules.
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A friend argues that a car is alive because its parts form organized systems and it requires
energy (gasoline and battery power). How would you respond to your friend?
Answer:
Although it is true that a car has its parts in an organized system and it uses fuel of some sort to run, a car doesn't have the characteristics of what classifies something as a living thing.
1. A car is not made up of cells. Living things are made of cells.
2. A car doesn't respond to its environment. Living things respond to their environment.
3. A car cannot grow and develop. Living things grow and develop.
4. A car cannot reproduce. Living things reproduce.
QUESTION 3
3.1. A scientist designed an experiment to investigate the water holding capacity
of sand, loam and clay soil. A soil sample of each soil type was places in
funnels lined with filter paper. 100 cm of water was added to all three
samples at exactly the same time. The filtrates were collected in measuring
cylinders. The results are shown in the table below.
Time (minutes) - Sand Volume of fitrate (om)
on
Sand
2
10
5.
0
4
20
10
0
6
35
20
0
8
50
35
5
10
65
45
20
75
55
12
40
75
60
14
75
60
65
16
L
3.1.1 Make a neat labelled diagram of the apparatus used to set up the
SAND sample
(5)
3.1.2 Identify:
(a) the independent variable
(b) the dependent variable
(2)
3.1.3 Using the results in the table, formulate a conclusion for this
experiment
(2)
(2)
3.1.4 Explain how the results obtained led to this conclusion
31.5 Which type of soil will be most suitable for gardening? Motivate your
answer.
(3)
the scientific community and madam I am not sure if you have any questions or concerns please visit the answer is yes way to you sir forwarding.
What are three human activities that can disrupt the water cycle, and what effect each one has
Answer:
I don't know
Explanation:
I don't know
So, since when do we start burying survivors alive? Did they crash into Zombiland? Was it Spirit Air who didn’t want to pay damages in law suits? Or is this a time distance question in which we have to wait until each of the surviving passengers pass away? If so then I suspect that those who survived the New Mexico/Texas border crash would be buried in the state or country in which they eventually died or where they so instructed their next of kin to bury them. Of course, maybe they would be cremated and then the ashes will sit on someone’s mantel until a house cleaner tosses them out or they ashes may be spread out over a special parcel of land or water.
a patient breaks a leg. predict which model a doctor will use to show where the break is
A doctor can use a 2D image model to show where the break is.
When a patient breaks a leg (the break could be as a result of fracture or bone dislocation), the doctor needs to scan the patient in order to determine the exact location of the break and the extent of the injury.
The gamma camera, x-ray machine and PET scanners are some of the devices that can be used to scan a bone.
Each of these devices uses 2D image technology to show the result of the scan.
So, a model that can be used by a doctor to determine the location of the break is 2D image.
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An investigation was designed to determine how freshwater fish maintain homeostasis within their environment. It was observed that the concentration of substances inside the fish cells was much higher than the concentration of substances in ponds, lakes, and streams and that freshwater fish have a constant flow of water from the environment into their cells.
Based on these observations, in what type of environment must these fish live?
A
hypertonic
B
hypotonic
C
isotonic
D
osmotic
The freshwater fish must live in a hypotonic environment to maintain homeostasis
WHAT IS OSMOSIS:
Osmosis is the movement of water from region of higher concentration of water or low concentration of solute to a lower concentration of water or higher concentration of solute. In terms of tonicity, a solution with high concentration of solute is called whileHYPERTONIC a solution with low concentration of solute is called HYPOTONIC. If the freshwater fish regulates water loss by having a constant flow of water from the environment into their cells, then the FISHES must live in an environment that has a higher concentration concentration of water than their cells i.e. a HYPOTONIC SOLUTION.Hence, the freshwater fish must live in a hypotonic environment to maintain homeostasis
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The mechanical advantage of a lever is 4 What does it mean?
Answer:
Mechanical advantage MA is the ratio of output (generated by the machine)force to intput (applied to the machine) force. So MA=4 means that for example if you apply 100N then your machine will multiply that force and generate 400N.
Which of the following is considered a balance within an organism *
a. metabolism
b.adaption
c. homeostasis
d. none of these
PLS HELP QUICK IM DOING A TWST
Answer:
C
Explanation:
In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
1. Pick up materials provided by your teacher.
2. Using the information covered about DNA please construct a model.
3. Sketch an image of the model in the space below.
Answer:
Follow the official guidelines. ...
Ask your teacher-librarian. ...
Use data for resource selection. ...
The scatter plot shows a bus stop where those waiting at the bus are plotted by their height and by
their age. Identify which dot goes with which passenger.
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cathy
brenda
frada givan
alice
ello
dennis
Scientific knowledge is always changing.
TRUE
FALSE
Answer:
Yes! I think/ True
Explanation:
The accepted views of science knowledge can change over time. Changes can result from new science observations, but can also be affected by social, political or religious convictions.
Answer:
True
Explanation:
Because the more technology improves on the daily the easier it'll be to discover new things about science that in the past were not achievable because they didn't have the proper resources
Why is photosynthesis important for both plants and humans
Which source should be avoided when conducting scientific research?
encyclopedias
personal blogs
scientific journals
government websites
personal Blog
Explanation:
hope this helps you
Free po ints
i need help
Circle all the statements that are TRUE about cells.
True statements are:
All cells have a nucleus.
All cells die.
All cells have a membrane.
Answer:
1 num write
3 num write
4 num write
5 num write
Please MATCH the Key Word to the correct definition
Answer:
1a 2c 3b 4d
Explanation:
