Which is the best description of the cause of sound waves? *
Answer:Sound waves are caused by the vibration of the oceans floor like a underwater volcano causes the water to vibrate
Explanation:
Which of the following is outer covering of human heart?
1.Pericardium
2.Myocardium
3.Endocardium
4.None of them.
5.Other:
Answer:
pericardium is outer covering layer of heart. pericardium is double layered membrane.
Explanation:
Answer:
2. Myocardium yan po
I'm not sure
in which direction do particles in a solution move during passive transport
During the passive transport, the particles move from a higher concentration to a lower concentration without the need for energy expenditure or spending. The passive transport is seen in the cell too.
What is the importance of the different types of transportation?In the cell, different types of transport are seen, such as active transport and passive transport; in active transport, energy is used, while energy is not used in passive transport. The movement of molecules across the cell plasma membrane is important because it allows cells to get rid of unwanted molecules. Passive transport does not require energy, and many nonpolar small molecules and gases can cross the lipid plasma membrane barrier and go into and out of the cell while, in this passive transport process, they save the cell's energy.
Hence, during the passive transport, the particles move from a higher concentration to a lower concentration without the need for energy expenditure or spending.
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RNA interference (RNAI) is a mechanism of gene regulation in eukaryotes. RNAI is initiated by ____, which leads to the ____ of specific genes.
Box 1:
single-stranded RNA
double-stranded RNA
double-stranded DNA
Box 2:
silencing
induction
expression
Answer:
double-stranded RNA; silencing
Explanation:
The RNAi mechanism is a natural process of gene silencing triggered by different small non-coding RNAs such as, for example, siRNAs, miRNAs and piRNAs. RNAi is a powerful technique to induce gene silencing in a sequence-specific manner. The delivery of exogenous double-stranded RNAs (dsRNAs) can be used to induce this evolutionarily conserved mechanism. The dsRNAs first bind to RNAi core components (Ago, Piwi proteins) and then target complementary mRNAs to induce their degradation.
Question 3 (3 points) (03.06 LC)
Select the correct statement describing the relative fitness in soapberry bugs.
A soapberry bug with high relative fitness feeds more successfully on fruits than do other bugs.
A soapberry bug with high relative fitness has a high number of offspring that survive to reproductive age.
A soapberry bug with high relative fitness has more mates than other bugs.
A soapberry bug with high relative fitness stays with one mate through its lifetime.
Answer:
B
Explanation:
I took the test 1 hours ago
What is the name of the structure labeled X? (Make the word plural)
Answer: Centrioles
Explanation:
Ball and socket joints allow bones to move _____.
back and forth
in all directions
across each other
up and down
Answer:
in all directions
Explanation:
Your shoulder is a ball and socket joint and it can move in all directions as an example.
Answer:
B.) in all directions
Explanation:
Ball-and-socket joints are as the name implies. A ball-shaped end of bone attaches to an indentation on another, the socket. It rotates around in any direction, with an example being the end of your arm that attaches to your torso. This design makes it more mobile than any other type of joint.
Once pollen lands on the stigma, it forms a pollen ____________________ down through the long_____of the pistil [the female reproductive part] into the flower's ______– which contains ovules. fill in the blank
Answer:
1. Pollen tube
2. Style
3. Ovary
Explanation:
This process is describing the process of POLLINATION, which is the transfer of pollen grains from the anther of a male flower (androecium) to the stigma of the female flower (gymnoecium). After pollination i.e. the pollen has landed on the sticky stigma, the pollen grows out a tube called POLLEN TUBE.
The pollen tube extends through the STYLE of the female flower called PISTIL to the OVARY. The ovary is the reproductive part of the female flower that produces the ovules, which the sperm in the pollen is about to fertilize.
Is human blood ever any color other than red?
Answer:
no
Explanation:
Human blood is red because of the protein hemoglobin. Hemoglobin contains a red-coloured compound called heme that’s important for carrying oxygen through your bloodstream
Sometimes blood can look blue through our skin, but its never blue. the reason we see blue is because blue light doesn't go as deep into kin as red. If the blood vessel is deep, your eyes see more blue than red light due to the blood’s absorption of red wavelengths.
How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrusions near a sedimentary rock layer by comparing the relative ages of several sedimentary rock layers by identifying fossils in nearby intrusion and extrusions and determining their age
Answer:
Radiometric dating methods
Explanation:
Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.
The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.
The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.
Answer:
by dating the age of intrusions and extrusions near a sedimentary rock layer
Explanation:
got it right on the assighment
What binomial nomenclature? A two-word name for organisms where the first word is the family and the second word is the species
A two-word name for organisms where the word is the genus and the second word is the species
A two-word name for organisms where the first is the genus and the second word is the class
A two-word name for organisms where the first word is the species and the second word is the genus
Answer:
A two-word name for organisms where the word is the genus and the second word is the species
Explanation:
Binomial nomenclature is the system biologists use to name species of living beings. When we translate this term, we get the two-name naming system. This tells us a lot about how species are named - their name consists of two components. The first component is the name of the genus the species belongs to and the second is the name of the species. For example, the scientific name used for cats is Felis catus. Felis is the genus and the species is catus.
Small aquatic organisms, such as coral, are the producers of the ocean.
Please select the best answer from the choices provided true or false
Answer:
true
Explanation:
on edg
Small aquatic organisms, such as coral, are the producers of the ocean. Thus, the given statement is true.
What is aquatic organism?The term aquatic organism has been defined as the the organism lives in the water is known as the aquatic organism. The corals are essential part of the marine ecosystems. They are feeding upon zooplankton, but also their polyps get sugar that is produced by the algae living on them. Also, the corals provide much needed shelter for lots of marine animals, but also are on the menu of some, like the starfish for example.
Limestone is in form of sedimentary rock that is made up of skeletal fragments of marine organisms such as forams, corals and molluscs. However, limestone is formed from the shell of an organisms because the shell is made up of calcite or aragonite.
Due to the presence of nutrients that swipe from ocean to the shores along with tides which makes predators to be present along the shores which ultimately pose a threat to coastal aquatic organisms.
Therefore, Small aquatic organisms, such as coral, are the producers of the ocean. Thus, the given statement is true.
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Most abundant element in the biomolecules studied (fats, proteins, carbohydrates, nucleic acids) was....
carbon
Monosaccharide
Amino acid
amino
acid
Explanation:
thats amino acid
Match the following terms and definitions.
1. any substance that can be decomposed by bacterial action
pollution
2. heat energy coming from inside the Earth; heat from volcanoes or geysers
geothermal
3. the act of contamination; making dirty or unclean
biodegradable
What are three different types of RNA
Explanation:
The 3 different types are messenger, transfer, and ribosomal RNA.
Answer:
Of the many types of RNA, the three most well-known and most commonly studied are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA), which are present in all organisms.
Explanation:
I got it right on the assignment.
Unlike fat, protein contains:
1)Carbon
2)Oxygen
3) Nitrogen
4) Hydrogen
HELPP PLEASE!!!!
Answer:
Nitrogen
Explanation:
Hope this helps :)
Answer:
C. Nitrogen
Explanation:
Fat contains Carbon, Oxygen, and Hydrogen, like protein. However, protein also contains Nitrogen which fat does not.
Hope this helped. :)
What is crossing over in meiosis and how does it ensure genetic diversity?
Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. ... It is obviously another source of genetic variation in offspring.
Explanation:
i looked it up on google
which process occurs when bacteria converts nitrogen gas to a usable form
Answer:
Fixation
Explanation:
Answer:c
Explanation:fixation
The law of universal gravitation applies to all objects in the universe
True
False
Answer:
Explanation:
yes true the gravitational pull does ap
ply to all objects of the universe
Answer:true
Answer:
true
Explanation:
Please help
Question is in photo
Answer:
the first one.
Explanation:
Please help me in my homework (keep it simple,i couldnt find Science ;-; I am sorry) What is environment? What are three main aspect of environment? 2)Write down any four importance of environment.
Answer: It is then the space in which the life of living beings and the interaction between them and other things takes place. It is made up of living organisms, abiotic elements and artificial elements. It includes physical, chemical and biological components of the organisms and elements that form it. It is important because it is the place of habitat of humanity, it provides natural elements such as water and food, it provides fuels and raw materials that serve to manufacture artificial things and it contributes to the sustainability of life on the planet.
Explanation:
The environment is a system made up of living organisms (such as animal and plants), abiotic elements (lifeless, such as stones or water) and artificial elements (created by man, such as buildings) that are related to each other and can be modified by human action. It is then the space in which the life of living beings and the interaction between them takes place.
It includes physical, chemical and biological components of the organisms and elements that form it. That is, how is its composition and its function in the environment.
The importance of the environment lies in:
It is the place of habitat of humanity, so it influences the life of human beings and future generations. It is the space where life develops at this time with all living beings and their natural components.It provides natural elements such as water and food since it offers all its natural resources needed by the human being. It provides fuels and raw materials that serve to manufacture the artificial things we use daily, to build houses, have light, transport, among many other benefits to exist. In the environment we find a great biological diversity of plants and animals that help maintain the ecological balance of the earth. This contributes directly to the sustainability of life on the planet. Each organism has a unique role to play.Therefore, all societies must guarantee their care for their existence and make rational use of all their resources.
According to ___________________, processes occur today as they did in the past.
Answer:
Uniformitarianism
Explanation:
Based on this evidence, a malfunction in what organelle is most likely responsible for Leigh’s disease
Answer: Mitochondria
Explanation:
Match each body to its best description:
black hole
?
a collapsed star that does
not let light escape
white dwarf
?
T
a star that has expanded
and cooled
red giant
?
an old, very dense, hot star
that is cooling
nebula
?
may collapse to form a
star
Answer:
Here u go
Explanation:
black hole=a collapsed star that does not let light escape
white dwarf=an old, very dense, hot star that is cooling
nebula=may collapse to form a star
red giant=a star that has expanded and cooled
Matching of each body to its best descriptions is given below:
Blackhole ---- a collapsed star that does not let light escape.White dwarf ---- an old, very dense, hot star that is cooling.Red giant ---- a star that has expanded and cooled. Nebula ---- may collapse to form a star. What do you mean by a Star?A star may be defined as any huge self-luminous cosmic body of gas that shines by radiation emanated from its internal energy sources.
These celestial bodies may provide some of the foundations and understanding of the mythologies, the system of religion, derivation of the earth's surface, etc.
Therefore, the matching of each body to its best descriptions are described above.
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Write the formula for acceleration.
Answer: Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.
Answer:
hope this helps
Explanation:
BRAINLIEST:
in which month is a hurricane most likely to occur: October or December? explain
Answer:
October
Explanation:
October is one of the hurricane season months
What are the effects of greenhouse gases on Earth?
Answer:
greenhouse gasses get trapped in the atmosphere and contribute to global warming
Answer: The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere.
Explanation:
What is toxic pollution?
Answer:
It is when things get contaminated like water, soil, and air and it can be harmful and poisonous.
How many significant digits are in the measurement below?
10.01 seconds
one
two
three
four
Answer:
Non-zero digits are always significant. Any zeros between two non-zero digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.
Explanation:
Which of the following is found in the cells of
fungi but NOT of archaebacteria?
A ribosomes
B cell membrane
C DNA
D nucleus
Answer: im 90% sure its (d)
According to the question option "D" Nucleus is found in the cells of fungi but NOT of archaebacteria.
What is the difference between fungi and archaebacteria?
Fungi cell walls usually are constructed of chitin whereas Eubacteria cell walls have peptidoglycan.
Archaebacteria do not have either substance, although the cell walls of some archaebacteria contain a substance similar to peptidoglycan.
Thus, the option "D" Nucleus is found in the cells of fungi but NOT of archaebacteria.
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