Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine.
Answer:
The correct answer is a. can be activated by the release of epinephrine.
Explanation:
Epinephrine is a hormone and neurotransmitter naturally secreted by the body through the adrenal glands, synthesized and stored in the adrenal medulla and released into the systemic circulation. Epinephrine is a non-selective adrenergic agonist, stimulating alpha1-, alpha2, beta1, and beta2-adrenergic receptors. The systemic actions of catecholamines are mediated by the binding of these compounds to plasma membrane receptors, of the GPCR type widely distributed throughout the body and known as adrenergic receptors, which are activated by the catecholamines adrenaline (epinephrine) and noradrenaline . These receptors cause different effects depending on the G protein subtypes to which they are associated and the signal transduction mechanism linked to the specific G protein.
What can you infer from this graph?
Answer: you can infer that I don’t give a uriruru
Which of the following describes the relationship between ecosystems and biomes?
O Many biomes are found within an ecosystem.
O Many ecosystems are found within a biome.
O Ecosystems are on land and biome are in the ocean.
O Ecosystems are natural and biomes have been modified by humans
Answer:
Ecosystems are natural and biomes have been modified by humans
during which phase of mitosis do nuclear membranes form around 2
sets of chromosomes
Answer:
Telephase
Explanation:
1: Which two parts of the taxa do we use to name organisms?
2: List and describe each of the three Domains.
3 List and describe the four kingdoms in the Eukarya Domain.
The hypothesis that whales evolved from land-dwelling ancestors is supported by __________. ANSWER Unselected molecular comparisons of whales and fish Unselected historical accounts of walking whales Unselected the ability of captive whales to be trained to walk Unselected fossils of extinct whales that had increasingly reduced hind limbs Unselected evidence from the current biogeographic distribution of whales Unselected I DON'T KNOW YET
Answer:
The answer is "Third choice".
Explanation:
Fossils are a great source of evidence about whales' forebears. It demonstrates, for instance, that a land mammal lived 50 million to 700 years ago. Whales evolved from such marine residents were thought by scientists. Scientists. This and more cells from a fossil can be said, so the concept that whales evolved from ancestors of land is reinforced by an extinct whale which has shortened the hind limbs evermore.
Early in mitosis, the nucleus, nucleolus, and nuclear envelope begin to dissolve in preparation for cell division. In
which stage of the cell cycle is this process reversed?
Answer:
Telophase
Explanation:
During telophase, a nuclear envelope becomes apparent around the nucleolus of each sister chromatid, forming their nucleus before separation/cytokinesis.
If this helped you, I'd appreciate Brainliest <3 TYA muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellular level during a muscle cramp?
Answer:
Myosin and actin do not fully detach, so the muscle cannot relax.
Which part of the neuron below is indicated by the arrow, and what is its function?
The long section of a neuron that includes structures that wrap around the neuron are indicated by the arrow.
- The myelin sheath releases neurotransmitters so that electrical impulses can be transferred.
- The myelin sheath protects and transmits electrical impulses faster.
- The node of Ranvier transmits electrical impulses faster.
- The node of Ranvier transfers information across a gap.
Answer:
the arrow points to an axon
Explanation:
Each neuron in your brain has one long cable that snakes away from the main part of the cell. This cable, several times thinner than a human hair, is called an axon, and it is where electrical impulses from the neuron travel away to be received by other neurons.
Answer:
B: The myelin sheath protects and transmits electrical impulses faster.
Explanation:
i just took the test and its B
what is the all year round climate present in the philipines
The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F).
Look at the chart comparing the price of graphic T-
shirts to the quantity supplied.
This chart is an example of a
O demand curve.
O demand schedule.
Price Per
Graphic Tee
Quantity
Supplied
O supply curve
O supply schedule.
$5.00
10
$7.50
20
$10.00
30
$12.50
40
$15.00
50
Answer:
It's D
Explanation:
The asker answered it for me XD
The chart that was used to compare the price of graphic T-shirts to the quantity supplied is a: supply schedule.
What is supply?Supply can be defined as the total quantity of goods or services that are demanded by consumers at a given price and period of time.
In Economics, there are two main types of chart that are used to illustrate the relationship between the total quantity of goods or services that are demanded by consumers and the total quantity of goods or services that were supplied by a manufacturer or producer and these include:
Demand scheduleSupply scheduleIn this scenario, the chart that was used to compare the price of graphic T-shirts to the quantity supplied is called a supply schedule.
Read more on supply here: https://brainly.com/question/11898489
Cellular respiration definition ?
Answer:
cellular Respiration is that cells use oxygen in mitochondria to make ATP and GTP for cells
Answer:
Cellular respiration occurs when cells utilize oxygen in their mitochondria to produce ATP and GTP.
Cellular respiration is a series of reactions that occur under aerobic conditions and result in the production of large amounts of ATP.
Explanation:
Glucose, the basic building block for starch and many sugars are one of the main sources of energy in our diet. Its oxidation can be divided into three phases in the respiration of the cells: glycolysis, the cancer cycle, and the electron transport system.
Aerobic breathing uses eukaryotes to generate energy, including all multicellular organisms and some single-cell organisms. Aerobic breathing uses oxygen – a powerful, in-kind electron acceptor.
Aerobic breathing is an extraordinarily effective process that enables eukaryotes to have complicated life and active lifestyles. It also means however that they need a continuous supply of oxygen or that they cannot get the energy to stay alive.
Other forms of respiration, which are slightly less efficient, can be used by procharian organizations such as bacteria and archaebacteria. They can therefore live in environments in which eukaryotic organisms cannot live because they do not need oxygen.
The size of pupils changes when moving from dim to very bright light. Explain how this change occurs?
Answer:
In dim light, your pupil expands to allow more light to enter your eye. In bright light, it contracts. Your pupil can range in diameter from 1/16 inch (1.5 mm) to more than 1/3 inch (8 mm). Light detected by the retina of your eye is converted to nerve impulses that travel down the optic nerve.
Explanation:
What is the genotype of an organism?
A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
B. How the genes are expressed resulting in the physical appearance of the organism.
Answer:A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
Explanation:
A. The genotype is the DNA sequences of this gene on a homologous pair of chromosomes.
What is Homologous evolution and Analogous evolution give its example !
Spam✔️
Homologous evolution means divergent evolution.
it is a type of evolution in which different species have common ancestor. for example if we take members of one species and put them in different environments then it is observed that there is some changes in the species according to environment
analogues evolution means convergent evolution
Answer:
Similar traits can be either homologous or analogous. Homologous structures share a similar embryonic origin. Analogous organs have a similar function. For example, the bones in a whale's front flipper are homologous to the bones in the human arm.
help plsssssss will give brainliest
Answer:
C
Explanation:
Common sense
Which three statements are true about the energy flow in an ecosystem?
Answer:
main source of energy for an ecosystem is the sun producers convert radiant energy to chemical energy the maximum amount of biomass is at the lowest trophic level
Answer:
A,B and E
Explanation: hope it helps you :)
Describe movement of molecules to maintain a healthy cell environment. Explain in details
Answer:
Very necessary for its survival.
Explanation:
Movement of molecules is very important to maintain a healthy cell environment because some molecules are required by the cell for its growth and development. Some molecules moves inside the cell environment through a semi-permeable membrane such as glucose, oxygen, potassium etc while on the other hand, some molecules are removed from the cell which are waste materials such as carbondioxide etc. If these waste materials are not removed from the cell, it greatly damaged the cell.
For each group write the # of valence electrons
Answer:
Explanation:
Bascially just count starting from 1 (skip the transition metals) and put helium at 2 valence. Everything else is just a regular pattern.
can anyone help me with this question? Thank you.
Answer:
At B part.
Explanation:
At B part the nightfall will happen first because the B part is in the shade and will not present in front of the sun. When the earth rotates its own axis, the shaded part which is B comes in front of sun which means day time is started while on the other hand, the A part is in the shade and will experience nightfall so we can say that the nightfall occurs at B part of the earth.
which of the samples shown below are photosynthetic
Option B. Samples ACD Are photosynthetic
What does it mean to be photosyntheticTo be photosynthetic means to possess the ability to carry out photosynthesis, a vital process in which organisms, typically plants, algae, and some bacteria, use sunlight, carbon dioxide, and water to synthesize organic compounds, particularly glucose, and release oxygen as a byproduct.
Photosynthesis occurs in specialized cell structures called chloroplasts, which contain chlorophyll and other pigments that capture light energy. These pigments absorb light, primarily in the visible spectrum, and convert it into chemical energy through a series of biochemical reactions.
Read more on photosynthesis here:https://brainly.com/question/13763348
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How human health is affected by contaminated food
Answer:
Foodborne pathogens can cause severe diarrhoea or debilitating infections including meningitis. Chemical contamination can lead to acute poisoning or long-term diseases, such as cancer. Foodborne diseases may lead to long-lasting disability and death
Explanation:
i hope it will help you
Does anyone know this?
Answer: The correct answer is zygote...blastocyst...embryo...fetus.
Explanation:
The zygote is the single cell that was the result of fertilization.
The blastocyst is the big ball of cells that was the result of differentiation and mitosis.
Then comes the embryo, and then finally, the fetus.
Good Luck <3
All of the species of sugar maple trees (Acer saccharum) found in the [town] make up a:
1. population
2. community
3. ecosystem
4. biome
Answer:biome
Explanation:
Because biome means where they are from
Answer:
C
I think it's correct unless any objections
Which molecule do mammals use to store extra glucose?
O starch
O cellulose
O myosin
O glycogen
Use the diagram below to answer Q2 and Q3.
Q2.
Which stage of meiosis is illustrated above?
Which of the following describes a property control experiment
A. 15 turtles are fed iceberg lettuce environment for another 15 turtles only for iceberg lettuce
B. A poll is taken to Turman the most popular website ever
C. 20 mice are fed donuts every day and their weight is measured after two months
D. Five radish seeds are planted in an out door garden to get lots of sun and water
What does biodiversity mean?
O
same organisms at each level
different organisms at all levels
O differences within one species
similarities within one species
Answer:
Biodiversity is a kind of variation of animals, or plant species within a given habitat
Explanation:
Which of the following best describes the function of the human nervous system?
Answer:
The nervous system gathers, interprets, and responds to information about the body's internal and external environment.
the organelle responsible for inspecting and packing protein?
mitochondria.
hope this helps!!