Answer:
c) A convicted sex offender
Explanation:
HIV testing is mandatory in the U.S. in certain cases, including for: blood and organ donors, military applicants and active duty personnel, federal and state prison inmates under certain circumstances and newborns in some states.
A bell rolling across the foor keeps moving until it is stopped by friction. This example demonsszes
the work prindide
Newton's Second Law of Motion
Newton's Third Law of Motion
Nentor's First Law of Motion
A student is collecting the gas given off from a frog living in an enclosed tank. The
gas being collected is probably
Oxygen
Nitrogen
Carbon Dioxide
Answer:
oxygen
Explanation:
1. List 2 interactions between the earth spheres and the water cycle.
2. List 2 interactions between the earth spheres and the carbon cycle.
3. List 2 interactions between the earth spheres and the nitrogen cycle.
Answer:
The carbon cycle, as the nitrogen cycle, occurs in all the spheres: Biosphere, Atmosphere, Geosphere and Hydrosphere.
Explanation:
Most Earth events involve interaction between multiple spheres. For example, rain is the movement of water (the hydrosphere) from the atmosphere to the lithosphere where it collects in lakes, rivers, or streams. Water is an important resource for inhabitants of the biosphere.
The Atmosphere-contains all the air in Earth's system. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. This sphere is also where weather occurs.
The nitrogen cycle occurs in all the spheres and ecosystems. It passes through rocks, water, atmosphere, plants, etc.
In atmosphere and biosphere: Nitrogen is about 78% of the gases in the atmosphere an it’s a essential component of the living organisms. It enters plants through the microorganisms that convert this nitrogen into ammonia. After this conversion, the plants absorb this substance. It can pass to animals when they eat these plants. Then, when they urinate, bacteria convert ammonia to nitrogen again and it returns to the atmosphere.
Sources:
https://earthsphereslife.wordpress.com/2020/03/31/nitrogen-cycle/https://earthsphereslife.wordpress.com/2020/04/01/carbon-cycle-in-all-the-spheres/
Help I need answers
Answer:
D
Explanation:
Uranium is an element that is often used in nuclear power plants. Uranium atoms are very large, and the substance can be dangerous if it is not carefully contained.
Answer:
What is the volume of a sphere with a radius of 24 units? A. 92167 units O B, 230477 unite 3 O c. 18A324 units D. 13,8247 units
Explanation:
Where do heterotrophs get phosphorus from?
Answer:
Heterotrophs get phosphorus from plants and other autotrophs.
What is the role of tRNA during translation?
O A. It moves the codons into a chain.
B. It provides the code for the protein.
O C. It translates from amino acids to nucleic acids.
O D. It moves the amino acids into a chain.
Answer:
Role of tRNA in translation
tRNA is responsible for bringing amino acids to to developing chain amino acids on sequence of mRNA through ribosomes.
Explanation:
Answer:
it moves the amino acids into a chain
Explanation:
yourrage told me
What tells a muscle when to contract?
Answer:
What tells a muscle when to contract?
Explanation:
(1) A message travels from the nervous system to the muscular system, triggering chemical reactions.
(2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle--that’s the contraction.
(3) When the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.
Answer:
The nervous system generates a signal, which triggers a muscle to contract
Explanation:
An ecosystem is composed of biotic factors and
A. pioneer species
B. anti-biotic factors
C. niches
D. abiotic factors
Reset Selection
Answer:
D-abiotic factors
Explanation: because im right
NEED HELP ASAP!!!
The coordinated action of two types of myofilaments, actin and myosin, results in muscle contraction. The muscles contract as actin filaments slide over myosin filaments. When the muscle is in a relaxed state, the myosin heads are ready to bind with the actin filament. However, they are not able to bind due to
a.
the absence of ATP
b.
a high concentration of Ca++ ions
c.
blockage of the attachment site
d.
alcoholic fermentation
Answer:
I think due to absence of ATP but I'm not sure.. Actin and myosin return to their unbound state causing the muscle to relax. Alternatively relaxation (failure) will also occur when ATP is no longer available.
Myosin heads are ready to bind with the actin filament they are not able to bind due to the absence of ATP.
How two myofilaments involved in muscle contraction?Muscle contraction results from an intercommunication between the actin and myosin filaments which generate movement relative to one another.
What happens to the actin and myosin filaments when a muscle contracts?Myosin movement appear to be a kind of molecular hop. The myosin reaches forward, binds to actin, contracts, releases actin, and then reaches forward again to bind actin in a new cycle.
What happens to actin and myosin during muscle relaxation?Relaxation occurs when nerve stimulation stops. Calcium gets moved back into the sarcoplasmic reticulum shattering the link between actin and myosin. Actin and myosin then return to their unbound state causing the muscle to relax.
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Cuales son los seres vivos
Answer:
Living things move, respond to stimuli, reproduce and grow, respire, and are dependent on their environment. Most living things need food, water, light, temperatures within defined limits, and oxygen. ... Some non-living things, such as rocks and water, were never living.
Explanation:
Answer:
Propiedad o cualidad que distingue a los organismos vivos de los organismos muertos y la materia inanimada, que se manifiesta en funciones como el metabolismo, el crecimiento, la reproducción y la respuesta a estímulos o adaptación al medio que se origina en el interior del organismo.
help!!!!!!!!!!!1
Organism X and Y live in the same environment. Organism X contracts a bacterial infection that causes its body temperature to rise to 60°C. How will this change in temperature affect enzyme activity in both organisms?
It will decrease enzyme activity in both organism X and organism Y.
It will increase enzyme activity in organism X and decrease enzyme activity in organism Y.
An increase in temperature above the optimal range will increase the reaction rate.
An increase in temperature will denature the enzyme causing a reduction in the reaction rate.
Answer:
an increase in temp will denature the enzyme causing a reduction in the reaction rate
Explanation:
how are nebule and stars related
Answer:
Is a interstellar cloud of 90% hydrogen, 10% helium , and trace amounts of heavier elements. Nebula are the basic building blocks of our universe, and contain the elements from which stars and solar systems are made.
Plz help I need help
Answer:
prokaryotic cells:
do not have a nucleusorganisms made of this cell type include bacteriaeukaryotic cells:
have nucleuscontains membran-bound organelles likes mitochondria and endoplamic reticulum organisms that are made of this cell type include plants and animalsboth:
are surrounded by cell membraneribosomefilled with cytoplasmDNAWhich statement best explains the relationship between producer and consumers in terms of energy?
Consumer produce glucose that producer's use for energy
Consumers convert carbon dioxide into energy
Consumers provide energy for producer to undergo aerobic respiration
Consumers convert glucose from producers into ATP
Explanation:
no C. Consumers provide energy for producer to
underground aerobic respiration
When would the heart of a developing human begin to beat? (1 point)
between 8 to 12 weeks
between 16 to 20 weeks
between 4 to 8 weeks
between 12 to 16 weeks
Answer:4 to 8 weeks
Explanation:
2. How are the atmosphere, hydrosphere, and lithosphere related in the
biosphere?
Answer:
For example, rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere). River action erodes banks (lithosphere) and uproots plants (biosphere) on the riverbanks.
Explanation:
Hope this helps.
A car is driving 75 miles per hour down the interstate and sees a wreck in the distance. The car starts slowing down, but takes a while until it completely comes to a stop. If the acceleration was 98 miles/hr2, how long did it take for the car to decelerate?
Answer:
43
Explanation:
Because we need to multiply the product
A student placed 20 ml of different sweet drinks in seven identical flasks She then added 5 grams of yeast to each flask Each flask was then covered with identical balloons as shown below
Balloon size increases as the sugar increases in the solution.
As the yeast feeds on the sugar or sugar solution which produces carbon dioxide gas. Due to presence of balloon, there is no place to go so gas slowly fills the balloon. Carbon dioxide gas produces from yeast fills thousands of balloon.
That solution which have high amount of sugar in it will leads to higher concentration of carbondioxide gas in the balloon so we can conclude that balloon size increases as the sugar solution increases.
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Label strands of DNA
if you examined a potato cell under a microscope how could you tell that it was a plant cell?
Answer:
When looking at a plant cell and an animal cell, you will notice one significant difference (though there are many more). A plant cell has one large central vacuole, whereas an animal cell has many.
Explanation:
Have a great day, and spread some positivity!
A plant cell can be identified by the presence of a cell wall, a large central vacuole, and chloroplasts.
The cell wall is a rigid structure that surrounds the cell membrane. It is made up of cellulose, a type of carbohydrate. The cell wall provides support and protection for the cell. Animal cells do not have a cell wall.
The central vacuole is a large space filled with water. It is located in the center of the cell. The central vacuole helps to maintain the cell's shape and turgor pressure. Animal cells do not have a central vacuole.
Chloroplasts are organelles that contain chlorophyll. Chlorophyll is the green pigment that allows plants to photosynthesize. Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into oxygen and glucose. Animal cells do not have chloroplasts.
If you examined a potato cell under a microscope, you would be able to see these features. The cell wall would appear as a thin, clear layer around the cell. The central vacuole would appear as a large, empty space in the center of the cell. The chloroplasts would appear as green, oval-shaped organelles.
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HELP
The carbon cycle is a cycle among the carbon reservoirs. What is a carbon reservoir and what are at least 3 examples?
Answer:
The reservoirs are the atmosphere, the terrestrial biosphere (which usually includes freshwater systems and non-living organic material, such as soil carbon), the oceans (which includes dissolved inorganic carbon and living and non-living marine biota), and the sediments (which includes fossil fuels).
Explanation:
Hope this helps...
In estuary is ____
A a fresh water biome
B an area with a low concentration of minerals and nutrients
C characterized by deep water
D an ecotone
Answer:
The answer to your question is D an ecotone
Explanation:
An ecotone is the area of transition between two different biomes so ecotone is the boundary between two different habitats.
Which of the following sequences best illustrates primary succession in a forest?
A. forest fire – pioneer species – willow - hardwood
B. bulldozed trees – shrubby weeds – cottonwoods – pine trees
C. exposed rock – lichens – weeds – shrubs – hardwoods – stable forest
D. flood – mosses – ground cover - shrubs
Answer:
C.
Explanation:
Primary succession is where it is a new area, not one where the area was simply made uninhabitable which gets rid of A, and B. C goes into more detail as to what actually happens as lichens consume the rocks while weeds come in afterwards due to the soil being formed since the lichen has broken down the rocks. Shrubs follow because enough soil has formed. followed by hardwoods and trees cause the roots of previous plants have formed enough soil for larger organisms and eventually a forest
What's the highest level of interdependence that includes only living things?
Answer:
The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and also nonliving things for survival. For example, a tree depends on sunlight for energy and food. A snail depends on plants for food.
Explanation:
this might help you
What is the mass number of potassuum atom that has 20 neutrons
o er ejemplo
Column A
Column B
1.
absorbs water and nutrients
a.stems
2.
b. leaves
uses sunlight to make sugar through
photosynthesis
protects the seeds
3.
c.
flowers
4
holds the leaves up in the air
di roots
5.
tomato
e fruits
6.
where the seeds are made
7.
anchors the plant to the ground
8.
sexual organs of the plant
9.
transports water and sugar up and down the
plant
Time left for this
assessment
20:30
nere to search
BI
Answer:
but you got to figure it out
A hormone signals through a G protein-coupled receptor as shown in the diagram. After the production of IP3, which of these events will MOST quickly stop the transduction of the signal?
Answer:
a stop codon is an important part in protein synthesis because it signals the halt of the production of protein when the needed protein is already formed
Explanation:
Which of the following statement is true about recombinant DNA
Answer:
It combines genes from two different organisms.
What is the main structural component of plants?
Answer: Carbohydrates are the most abundant structural component present in plants and microorganisms.
Explanation:
Answer:
Cellulose
Explanation:
Cellulose is the main structural component of plants.