Answer:
1. What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?
Explore the process for determining the density of a solid using a laboratory procedure. The importance of the lab in the topic is to find how density of an object is and if it can sink or float and it is important to answer the question so you can also find mass and volume.
2. What is your hypothesis (or hypotheses) for this experiment?
If the mass and volume of an object can be measured, then its density can be determined, because density equals mass over volume.
The average distance between the center of the Earth and the center of its moon is 3.84 x 108 m. The mass of the earth is
5.97x1024kg. What is the orbital speed and period of Earth's moon?
V, - 1.02 x 10 m/s
V, = 3.26 x 10ʻm/s
T= 2.37 x 10° s = 27.4 days
T = 6.24 x 106 s = 82.2 days
b. V, = 2.03 x 10²m's;
d. V, - 1.02 x 10 m/s;
T = 3.67 x 10ºs = 39.4 days
T = 4.82 x 10Ⓡs = 57.3 days
Answer:
T = 2.37 x 106 s = 27.4 days would be the answer
Explanation:
somebody please help me
Answer: B
Explanation:
• Nerve cells (neurons) carry the message from the stimulated receptors to the correct effectors.
• A sensory neuron carries the message from the receptor to the central nervous system (the spinal cord and brain).
• A motor neuron carries the message from the central nervous system to the effector.
• This is a reflex arc.
PLEASE HELP Compounds that always contain the element carbon are called
ASAP, WILL GIVE BRAINLIEST
Using technology, scientists are now able to use genetic information to classify new species. What is the likely impact of this advancement on the classification system?
The existing classification system may change to accommodate the new information.
The existing classification system will be replaced completely.
Organisms would be classified based only on their mode of nutrition.
Organisms would be classified based only on physical characteristics.
Answer:
I think it is the existing classification system may change to accommodate the new information.
Explanation:
Answer:
yeah i think i is The existing classification system may change to accommodate the new information. to
Explanation:
With the school year coming to an end. Tell me how science has changed the way you think?
Don't tell me what you think I want to hear. Reflect back to the start of the school year and ask yourself if you are now thinking different.
Answer as honestly and sincerely as you can.
How do the activities of squirrels affect oak trees?
A.
They cause the trees to produce acorns during the winter.
B.
They make it more difficult for the tree to reproduce.
C.
By removing acorns, their behavior causes harm to the trees
D.
They help the trees reproduce more successfully
Answer:
I want to say it is
They help the trees reproduce more successfully
Explanation:
this is because the others do not make sence
Carbon is an organic element found in all life forms. Which of the following
occurs through the process of breaking down carbon-based molecules?
Water molecules are transferred through the body.
Elimination of waste products occurs.
Energy needed for life functions is released
Absorbing of oxygen through pore occurs.
Answer:
The third option Energy for life functions is released
Explanation:
What has genetic engineering been used to produce?
A.salivary amylose
B.human growth hormone
C.hydrochloric acid
D.uri acid crystals
Answer: What has genetic engineering been used to produce?
Explanation: A
Describe the advantages of a four chambered heart compared to heart with two or three chambers
How do we create stronger evidence?
A) better observations
B) better opinions
C) better theories
D) better inference
Answer:
A
Explanation:
Opinions, theories, and inferences are all guess-based and rely on non-factual evidence whereas observations are based on de facte material which, most of the time, is better to support claims or statements.
Mammals have two body systems which work together to move oxygen to all parts of the body. Which of the following body systems supply the body with oxygen?
Answer:respiratory system
Explanation:The primary function of the respiratory system is to deliver oxygen to the cells of the body's tissues and remove carbon dioxide, a cell waste product. The main structures of the human respiratory system are the nasal cavity, the trachea, and lungs
Answer:
the lunges, heart, throat, etc.
Explanation:
Why is the point of attachment of the frog's tongue considered to be advantageous?
Answer:
Frog's tongues are attached to the front of their mouths rather than at the back like humans.
Explanation:
This is an advantage because most frogs eat flies and insects and the like. Because they can flick their tongue a long way out they are able to catch food more effectively. This is an example of an adaptation.
Genetic drift and natural selection can both be mechanisms of evolution. However, they are very different mechanisms.
Explain how genetic drift is different from natural selection.
Answer:
The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success
Explanation:
Hope this helps
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A mother has one allele for dimples and one allele for no dimples. How many
of her gametes will carry the allele for dimples?
A. 0%
B. 25%
C. 100%
D. 50%
Answer:
50%, i believe
Explanation:
So the mother in the problem must have gotten her alleles from her mother and father. Who donated what we are not sure. All we know is that she got one allele for dimples and one allele for no dimples. These are part of the mother's somatic cell DNA. This DNA is duplicated during interphase, right before meiosis occurs as the mother begins to form her gametes, however.
Mendel used more than 28,000 pea plants in his experiments. Why is it
important that he studied such a large sample of pea plants?
A. Having more samples gave him results that were closer to the
predicted ratios.
B. The pea plants were very inexpensive.
C. Using more plants made the experiments take less time.
D. Most pea plants die after producing seeds.
Difference between homology and heterology?
Hello! I got the answer! So if you look at the word homo and hetero. Homo means the same and hetero means different. So homology is the study of to show the simliarity between organisms. And heterology is the study of to show difference between organisms. This is my first time answering! Anyways have a good day/night!!
what would happen if a new predator was introduced into the ecosystem that only ate mice ? Would the mouse population be lowered ?What else would happen because of this
Answer:
The mice population would be lowered, and that predator could be a prey to other predators in that environment.
Explanation:
The introduction of new predator has both positive as well as negative effects on the ecosystem and environment.
What happen when the predator in introduced in an ecosystem?If a new predator was introduced into the ecosystem that only ate mice so this results in the reduction of population of mice which leads to the disturbance of the ecosystem.
So we can conclude that introduction of new predator has both positive as well as negative effects on the ecosystem and environment.
Learn more about ecosystem here: https://brainly.com/question/15971107
which of the following is the lotic system?
A. a lake
B. a puddle
C. a stream
D. a pond
Answer:
option C
Explanation:
lotic system means a flowing body of water
Answer:its a stream c
Explanation:
Anna hits a golf ball, and it soars through the air toward the green. It travels in an arc across the ground. Which statement does not describe the ball’s acceleration before it stops?
A. It increases speed.
B. It decreases speed.
C. It changes its overall direction.
D. It moves in the same direction.
Answer:
c
Explanation:
Answer:
C
Explanation:
When a ball is thrown everyone of these things happen except for C because when you throw a ball it does not just turn and come back to you, it falls to the ground after going some distance.
The scientific name of an organism is made up of what two group names?
Answer:
Genus species
Explanation:
Scientists use a special naming system for organisms. It is made up of two words.
The first word is the genus of the organism and the second word is the species of the organism.
The first word, which is the genus, is always capitalized, but the second is not. Both words are italicized if possible, but if you are handwriting the scientific names, an underline suffices.
An example of a scientific name for a house cat is:
Felis catus
In response to an increasing blood glucose level, the human body will normally
A) release a hormone that lowers the blood glucose
B) use the excess glucose to make protein
C) store the glucose in cell nuclei
D) produce a hormone that destroys the glucose
what other animals benefit from eachother? this is a simbiotic relationship
Answer:
There is coral and algea.
Explanation:
Blood contains many different types of blood cells
suspended in blood
but only
blood cells carry oxygen.
Answer:
yes
Explanation:
Which of the following is a risk of commercial fishing?
fatality rate that is 23 times as high than for all regular workers
Deserts are only found near the equator.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation:
Answer:
False
Explanation:
Many deserts are not located around the equator with the most common example of this being the Gobi desert. Some books even contain the information that the Arctic and the Antarctic are deserts as well and they are located on the poles.
What is source of the DNA for the strawberry plant?
It was absorbed from the soil
It was passed on from the parent plant
It was created by the plant using sunlight
It was borrowed from animals that feed on the plant
Answer:
passed on by parent plant
Explanation:
both parents dna are present half of fathers and half of mothers
1. mutations cause A. DNA screenings B. genetic finger prints C. genetic disorders D. protein synthesis
Answer:
A ) DNA screening
Explanation:
mutations changes up your DNA
A marine ecologist has constructed the conceptual model shown in the diagram. Which prediction can be made from using this model?
Hello. This question is incomplete. You forgot to put the diagram and answer options.
The diagram is in the figure attached below and the answer options are:
Where the tertiary consumers get their energy
How often primary producers are able to reproduce
When bacteria and fungi initiate the process of decomposition
Whether other secondary consumers are present
Answer:
Where the tertiary consumers get their energy
Explanation:
The diagram establishes the visualization of a food network where it is possible to visualize all the relationships between predators and game, in addition to being possible to observe the relationships between each trophy within a food chain.
With this, it is possible to determine all the ways that tertiary consumers are able to obtain energy and observe how that energy reached them.
Answer: A
Explanation: I just took the test
Which factors are included in watershed conservation? Check all that apply.
protecting different kinds of wildlife
restoring vegetation in certain areas
preventing damage to crops from precipitation
ensuring improvement of environmental health
relocating ecosystems away from polluted areas
Answer:
Protecting different kinds of wildlife.Restoring vegetation in certain areas.Ensuring improvement of environmental health.Relocating ecosystems away from polluted areas.Explanation:
These are all the factors that are included in watershed conservation. Watershed conservation is very important to the environment for several reasons. Freshwater from the watershed is often used by people for the purposes of drinking, cleaning and bathing. Conserving this source allows us to avoid the depletion of freshwater supply. Moreover, it is important to ensure that such water is not polluted, both for the benefit of humans, as well as to ensure that plants and animals that require this water are able to access it safely.
Answer:
D
Explanation:
A skateboard manufacturing company has had problems with the wheels on its skateboards cracking and causing injuries. An engineer for the company knows of a material that he thinks will make the skateboards safer. What would be the best step for the engineer to take next?
He should publish a report about the innovation and its impact on public safety.
He should conduct tests using computer models to determine the safety impact.
He should immediately begin producing all skateboards with the new material.
He should convert production of half of the skateboards to use the new material.
Answer:
Option B, He should conduct tests using computer models to determine the safety impact.
Explanation:
The better performance of material proposed by engineer will be treated as a claim without any proof, if the production of the stake board starts without testing it.
In order to verify his/her statement, the engineer needs to conduct durability and strength test on stake board having the “proposed material” in its structure.
After the test results are obtained, they must be vetted through publication as research paper.
Hence, option B is correct
