Answer:
1st option and and 3rd one
Explanation:
Why is it important that doctors perform plasma donations in "sterile environments"?
A. To decrease spread of bloodborne pathogens
B. To decrease lethality from needle shock
C. To decrease clotting resulting from dirty machinery
D. To decrease plasmapheresis of the blood
Answer:
D. To decrease plasmapheresis of the blood.
Explanation:
Plasmapheresis is a process in which plasma (which is what is being donated) is separated from the blood cells. Usually, the plasma is replaced with another solution such as saline or albumin, or the plasma is treated and then returned to your body.(or the patient)
Hope this helps I'm not to 100% sure but like 85% tell me if I'm wrong.
what increases the amount of solar energy in a region
Answer:
The amount of sunlight
Explanation:
solar energy comes from the sun and uv rays this is my explanation
Answer:
The amount of sunlight
Explanation:
What moon phases are present in the model?
a. New Moon and Full Moon
b. 1st Quarter and 3rd Quarter
c. Waning Cresent and Waxing Cresent
d. Waning Gibbous and Waxing Gibbous
Answer: c
Explanation:
What is the best definition of activation energy
Answer:
The term Activation Energy was introduced in 1889 by Svante Arrhenius, a Swedish scientist. It is defined as the least possible amount of energy (minimum) which is required to start a reaction or the amount of energy available in a chemical system for a reaction to take place.
Hope that helps :)))
Question 4 of 10
2 Points
Which happens to a developing child first?
A. Teeth begin to form.
B. The heart begins beating.
C. Eyebrows appear.
D. The eyes are able to see.
Answer:
B
Explanation:
A child needs a beating heart to live, if not they cam't develop.
Points give a answer
Answer:idk
Explanation:
Which structure is at work when the body deals with reflex actions?
meninges
brain stem
vertebral column
Ospinal cord
Answer:
spinal cord
Explanation:
Reflex actions are the involuntary action of the body in response to a signal or stimulus. The reflex action of body is controlled by spinal cord.
Reflex arc acts as a neural pathways that transmit impulse to the brain via spinal cord. Sensory neurons pass through synapse in the spinal cord which activate spinal motor neuron to act immediately without any delay.
Immediate taking off hand from hot oven is an example of reflex action, which is regulated by spinal cord.
Hence, the correct option is spinal cord.
Answer: Meninges, brain stem, vertebral column, spinal cord.
Explanation:
A reflex action can be defined as the involuntary and instantaneous movement of the body towards the stimulus. The reflex action is generated as a response in the neural pathway called reflex arcs that includes the meninges of the brain, brain stem, spinal cord and vertebral column that sends electrical impulses to the muscles, and other parts of the body to give response towards stimulus.
What percent of the offspring will be
pink, if we cross two pink tulips?
50 %
100%
25 %
During photosynthesis, plants take in carbon dioxide, water, and energy from the sun and produce carbohydrates and oxygen. Which of the following statements best explains how plants follow the law of conservation of mass during photosynthesis?
The amount of each element in the reactants equals the amount of each element in the products.
The number of carbon dioxide molecules taken in exactly equals the number of carbohydrate molecules produced.
The plant uses the carbon dioxide gas, liquid water, and energy to produce a solid carbohydrate.
The plants mass does not increase or decrease as a result of photosynthesis.
The statement that best explains how plants follow the law of conservation of mass is the amount of each element in the reactants equals the amount of each element in the products is the correct one. The correct option is A.
What is the conservation of mass?According to the rule of conservation of mass, mass is neither generated nor destroyed during a chemical process.
Because mass is conserved (kept the same) in chemical processes, this sameness of mass in reactants and products is known as the Law of Conservation of Matter. Photosynthesis, which is a chemical process that occurs in plants, is one of the most crucial for life as we know it to exist.
Therefore, the correct option is A. The amount of each element in the reactants equals the amount of each element in the products.
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3. Two chickens are bred and have five offspring, shown below. What are the most likely
genotypes of the parents?
O A FREW and EWER
O B. FWFR and FWEW
O C. FRER and FWFR
O D. FRER and WEW
the most
Answer:FRFW and FWFT
Explanation:I took the gizmo test
Arnold is reviewing the Miller-Urey experiment and similar experiments on the origins of life on Earth. In each of these experiments, several
inorganic gases were mixed in a chamber to simulate the atmosphere of early Earth. Then the gases were subjected to a spark of electricity,
which simulated a lightning bolt. The gases reacted to form simple amino acids and other organic compounds.
Arnold claims that the results of the experiments show how the first organic molecules formed on Earth
Which statement is the best evaluation of Arnold's claim?
A The claim is well justified. The results were verified by many experiments
B. The claim is well justified. The experiments tested all of the possible mechanisms for making organic molecules.
C. The claim is poorly justified. The experiments tested only one mechanism for making organic molecules; other mechanisms may exist.
D The claim may or may not be justified, depending on the conclusions of the scientists who completed the experiments.
Answer:
C. The claim is poorly justified. The experiments tested only one mechanism for making organic molecules; other mechanisms may exist.
Explanation:
The Miller-Urey experiment is a classic experiment and it has been used to support a hypothesis that states that abiotic synthesis in the early Earth was the cause of the formation of the organic molecules required for the life. However, although this experiment is a classic that showed how organic molecules could have derived from a primitive atmosphere, it was an experiment in controlled conditions, thereby it is imperative to obtain real evidence to support the fact that the first organic compounds were formed on early Earth.
Answer:
C
Explanation:
What threat do rusty crayfish pose as an invasive species?
a.
Rusty crayfish are poisonous.
b.
They consume the food supply.
c.
They kill the native crayfish.
d.
They eat all the young fish.
e.
They clog the natural rivers.
Answer:
They kill the native crayfish
Explanation:
this is because they are more aggresive
Answer:
Option B
Explanation:
The answer is option B or "they consume the food supply ." Rusty crayfish are known as a invasive species because they are legal to buy, sell, and transport but putting them into public waters can have a negative impact on the waters. In this case Rusty crayfish will have a negative impact on a ocean or a lake because it destroys aquatic plant beds which some organisms use as homes, they also happen to be really aggressive eating animals so consuming the food supply for other animals is the main threat the rusty crayfish pose.
Hope this helps.
Please help me with these ones, i cant figure out these, if 1, 2, and 3 r correct ill mark u as the best answer
The relationship between a pitcher plant and a spider is Mutualism.
The relationship between a cuckoo and a warbler is a parasite-host(parasitism) relationship
I would say the relationship between racer snakes and iguanas is NOT mutualistic symbiotic, since the racer snakes are the only ones with the possibility of benefiting from the relationship.
what are two ways a virus can kill a cell?
Answer:
THE TWO WAYS A VIRUS CAN KILL A CELL ARE CELL LYSIS , ALTERATIONS TO THE CELL'S SURFACE MEMBRANE AND VARIOUS MODES OF PROGRAMMED CELL DEATH.
A common ancestor is evident when comparing __________________ of different species in the phylum Chordata, especially in the early stages.
Answer:
embryos
Explanation:
Organisms rely on the sugar molecules produced by photosynthesis in order to carry out their life processes. Which of the following organic molecules can be formed when the chemical elements in sugar interact with other elements?
A.
amino acids
B.
lipids
C.
nucleic acids
D.
all of these
Answer:
D. all of them
Explanation:
:D
<3
The complete breakdown of glucose through aerobic respiration in muscle cells
results in the net production of a maximum of
36 ATP molecules.
36 O2 molecules
36 ADP molecules
36 CO2 molecules.
Answer:
36 ATP molecules
Explanation:
Cellular respiration is a metabolic process undergone by all living cells. It is the way cells obtain energy by breaking down food molecules to yield energy in form of ATP needed for their life processes. Cellular respiration can occur in the presence of oxygen (aerobic) or in the absence of oxygen (anaerobic).
Aerobic cellular respiration is that which occurs when oxygen is present in the cells. It consists of three main stages viz: Glycolysis, Kreb's cycle and Oxidative Phosphorylation (ETC). Glycolysis is the first stage of aerobic respiration involving the breakdown of glucose into pyruvate and a net gain of 2ATP molecules.
Kreb's cycle or TCA is the next stage of aerobic respiration involving the production of electron carriers (NADH and FADH2) and release of 2ATP molecules as well.
Electron transport chain (ETC), which is the last stage of aerobic respiration involves the most yield of ATP molecules. Electrons are passed from one molecule to another in this stage, with oxygen being the last electron acceptor. 32 ATP molecules is produced at this stage.
In totality, a net production of 2+2+32 = 36 ATP molecules is the maximum produced after aerobic respiration in a muscle cell.
please help brainliest
Answer:
I would say C
Explanation:
It makes the most sense to me
Plz mark Brainliest
Answer:
Answer is most likely B.
Explanation:
I say so because nectar is the one with the highest water content among all the options. It contains 80 – 90% water.
How do you fit into a food web ? Describe a food web that includes you ?
Answer:
We would be considered as one of the top predators.
Explanation:
There aren't many threats to humans at this point. We're omnivores, so we consume plants and meat. Humans are usually tertiary consumers, on the third trophic level, but sometimes can be on the second trophic level depending on the diagram.
Which of the following does not create its own light or bioluminescence?
jellyfish
fireflies
fungi
spiders
Answer:
Spiders
Explanation:
There are many bio luminescent organisms, or organisms that make their own light.
Many types of jellyfish create their own light, usually to scare away predators. Fireflies also create bioluminescence, creating their well known light that gives them their name. There are some species of bioluminescent fungi. They do this to deter predators and to attract insects that can aid in the process of dispersing spores.
The only organism listed that cannot create its own light is a spider.
Describe what the completeness or integrity of an ecosystem biodiversity is used to measure
Answer:
Disruptions to any physical or biological component of an ecosystem can lead to shifts in all its populations. Biodiversity describes the variety of species found in Earth`s terrestrial and oceanic ecosystems. The completeness or integrity of an ecosystem`s biodiversity is often used as a measure of its health.
Explanation: Disruptions can really mess with any physical or biological component of a ecosystem then that ecosystem leads to shifts in all populations. I hope this answer helps you!
The completeness or integrity of an ecosystem biodiversity is used to measure its health.
Biodiversity refers to the different types of organisms present in an
ecosystem. A healthy ecosystem is one which has a high degree of
biodiversity present in it.
High biodiversity leads to a high stability and productive rates as a result of
the high resources present. An unhealthy ecosystem has low integrity or
completeness in its biodiversity .This is why the integrity of an ecosystem
helps to measure its health.
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Which trophic level contains the organisms that are the source of all chemical energy used in an ecosystem?
parasites
herbivores
producers
decomposers
Answer:
b
Explanation:
Which of the answers indicate that you’re thinking like a scientist
Answer:
yes
Explanation:
Which thought process is an example of inductive reasoning?
Answer:
Inductive reasoning is a type of thought process that moves from the specific observation to the general. Sometimes scientists see something occur and they will hypothesize and make a theory based on the observation. Examples of Inductive Reasoning: My father was loud when he was angry.
Explanation:
New crust forms:
A. near a convergent boundary.
B. in an ocean trench.
C. where two plates pull apart from each other.
O D. at the lithosphere.
SUBMIT
New crust forms where two plates pull apart from each other and the correct option is option C.
New crust forms at divergent boundaries, which are locations where two tectonic plates are moving away from each other. As the plates separate, magma from the underlying mantle rises to fill the gap created by the spreading plates.
This magma solidifies and forms new crust, adding to the existing plates. Divergent boundaries are typically found along mid-ocean ridges or continental rift zones.
Convergent boundaries (option A) are locations where two plates collide, often resulting in the subduction of one plate beneath the other. Ocean trenches (option B) are formed at subduction zones, where one tectonic plate is forced beneath another.
The lithosphere (option D) is the rigid outer layer of the Earth, including the crust and uppermost part of the mantle, but it is not the specific location where new crust forms.
Thus, the ideal selection is option C.
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hey please help
is a solar eclipse local or global?
is a lunar eclipse local of global?
Answer:
A solar eclipse is Local
A lunar eclipse is global
Explanation:
3.One advantage to being an ectotherm is that an ectotherm
Each up-and-down column of elements on the periodic table.
A.Periodic Law
B.Group
C.Period
D.color of the chemical
Answer:
Groups are the vertical columns
Explanation:
Periodic law states that when elements are listed in order of their atomic masses they automatically fall into similar groups.
A period is the horizontal organization.
Answer D is irrelevant.
So the answer is B! Group!
Hope this helped!!!!
A dog breeder breeds a german shepherd dog with a poodle to create a dog that has traits of both varieties of dogs. This is an example of...
artificial selection
natural selection
mode of inheritance
sexual reproduction
Answer:
Artificial selection
Explanation:
How does an ecosystem fulfill the needs of an organism?
Answer:
They are all important parts of an ecosystem. Producers are the green plants. They make their own food. Consumers are animals and they get their energy from the producers or from organisms that eat producers.
Answer:
It contains the biotic and abiotic factor needed for the organism's survival. This includes water, food, places to live, and more.