a 2 Which characteristic is unique to invertebrates?
A.
B.
C.
D.
Answer:
A
they are immobile, correct
They are immobile are the characteristic is unique to invertebrates.
What are Invertebrates?
Animals without a backbone or skeletal skeleton are known as invertebrates.
They come in a variety of sizes, from tiny mites and nearly invisible flies to enormous squid with eyes the size of soccer balls. There are millions more species to be discovered after 1.25 million have already been identified, the most of which are insects.
Invertebrates are successful in part because of how quickly they reproduce. For instance, corals and sponges both produce eggs and sperm. Social insects like ants and bees produce eggs that can become workers without needing to be fertilized.
Therefore, They are immobile are the characteristic is unique to invertebrates.
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me need help........................................
Answer:
Carbon dioxide is a compund
Explanation:
Since Oxygen and Carbon are elements in the periodic table...
Answer:
Carbon dioxide (the far right)
Explanation:
Glycolysis provides a cell with a net gain of:
a. 18 ATP molecules.
b. 36 ATP molecules.
c. 4 ATP molecules.
d. 2 ATP molecules.
Answer:
d. 2 ATP molecules.
Explanation:
The net gain from glycolysis is two molecules of ATP and two molecules of NADH. The conversion of pyruvate to acetyl CoA and its metabolism via the citric acid cycle yields two additional molecules of ATP, eight of NADH, and two of FADH2.
What part is the cell is a plastid that stores starch?
Answer:
the answer is
leucoplasts
How Many Milligrams Are In 1455 grams?
First To Answer Gets Brainliest 3
Answer:
Grams to milli-grams
1455 = 1455000
Just multiply by 1000
Answer:
1455000 milligrams.
•Multiply the grams by 1000 to find milligrams
Select all of the biomolecules that have a carbon-nitrogen bond.
lipid
protein
peptide
nucleic acid
carbonhydrate
please answer fast.
Answer:
All have carbon-nitrogen except carbohydrate
The biomolecules that do not have any carbon-nitrogen bond are proteins, peptides, and nucleic acids. The correct options are b, c, and d.
What are biomolecules?Biomolecules are organic molecules composed of carbohydrates, protein, lipids, and nucleic acids.
They are necessary for living cells to survive. Some valuable biomolecules have high demand that cannot be met by renewable resources.
Biomolecules are organic compounds that are required for life to exist. These molecules serve important functions such as a source of energy, materials for constructing new body mass such as muscles, and other molecules that serve important functions such as hemoglobin, which transports oxygen in the blood.
Proteins, peptides, and nucleic acids are examples of biomolecules that lack a carbon-nitrogen bond.
Thus, the correct options are b, c, and d.
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Urgentttt
The map shows the number of waterways in each state that still fail to meet
the goal of the Clean Water Act, enacted in 1972.
Which of these state has the fewest polluted waterways
Answer:
B) Alaska (AK)
Explanation:
According to the key, Alaska, along with Arizona have the fewest polluted waterways, and since Arizona isn't an option, the correct answer is Alaska.
The state of Alaska is one of the states that ranks lowest in the pollution index as shown hence option B is the correct answer.
What is the clean water act?The clean water act was meant to protect the waterbodies in the United States and decrease the cases of water pollution to the barest miniumum.
From the map that we can see, the state of Alaska is one of the states that ranks lowest in the pollution index as shown hence option B is the correct answer.
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Which term describes the ability of a substance to change the genetic characteristics of an organism
Answer:
Transformation
the ability of a substance to change the genetic characteristics of an organism
The fur color of collared lemmings changes to white at a certain time of the year.
a. Explain how the change in fur color is an advantage to collared lemmings. When temperatures rise above freezing, snow melts, which causes changes in the collared lemmings’ habitat.
b. Describe two ways warming temperatures could cause the size of the collared lemming population to decrease.
c. Describe how fur color in the collared lemming population will likely change over time as temperatures increase because of climate change.
The change in fur color of collared lemmings is an advantage in the face of rising temperatures because their snow color will make them easily vulnerable to predators.
What is adaptation?The term adaptation refers to the morphological or physiological changes that an organism undergoes in order to survive efficiently in its environment.
The change in fur color of collared lemmings is an advantage in the face of rising temperatures because their snow color will make them easily vulnerable to predators when the snow eventually melts.
The rise in temperature will cause physiological changes in the the population of the collared lemmings which could reduce their population size. Also, predators can now access them more easily as they become more visible.
As time goes on, the snow color of the collared lemmings will eventually change as the animal will have to take on colors that will enable it to blend again with its new habitat and escape predators.
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Compare and contrast macroevolution and microevolution
Answer:
Microevolution happens at a smaller scale, hence the prefix micro. Macroevolution happens at a larger scale, hence the prefix macro.Microevolution occurs within a single population or species, over a shorter period of time.Macroevolution can occur among multiple species, and takes a longer period of time.Explanation:
Hope this helps, I really tried to explain this :)
⦁ Why is Isle Royale an ideal place for scientists to study predator-prey relationships?
Answer:
The resulting predator-prey relationship has been extensively studied ever since. The island's isolation, the limited presence of humans, and limited quantifiable populations
Explanation:
so they have created an ideal place for studying the relationship.
Explain the relationship between an atom and an element
Answer:
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. ... All isotopes of a particular element have the same number of protons, but can have different numbers of neutrons.
Explanation:
compared to blood capillaries, lymphatic capillaries__________.
Compared to blood capillaries, lymphatic capillaries are larger in diameter and possess closed ends.
What is the function of lymphatic capillaries?The function of lymphatic capillaries deals with the process of keeping the overall balance of fluid in your body. This function is stimulated by returning the interstitial fluid back into the circulatory system with the help of lymph capillaries.
In blood capillaries, fluid can never being flowed but in lymph capillaries, fluid can easily flow throughout the cell walls. But the movement of this fluid is only permitted in the forwarding direction. This is also the unique feature of lymphatic capillaries.
Therefore, the major difference between blood capillaries and lymphatic capillaries is that lymph capillaries are larger in size.
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2. The graph represents changes to two jackrabbit populations in two different areas over 15 years.
a. Which of these populations experienced the faster growth rate over the first five
years? Explain your answer. (1 point)
Incomplete expansion of the lung or a portion of lung is termed _____, which may be produced by _____
Answer:
atelectasis
Explanation:
Define homeostasis in at least five words
Answer:
to any process that living things use to actively maintain fairly stable conditions necessary for survival.
Explanation:
Answer:
property of cellss and tissues
Explanation:
that five words
What do you predict would happen if you brought a negatively charged balloon next to an uncharged piece of paper?
The balloon will attract the paper.
The balloon will repel the paper.
Nothing will happen.
The paper will repel the balloon.
Answer: Option A (the balloon will attract the paper)
Explanation:
I did the exam and option A was correct :)
I hope this helps!HELP
Nephrons, the functional unit of kidneys, are responsible for formation of urine. The sentences describe situations that are the result of problems in the urine formation process. For the nephron shown below, match each situation to the step in the urine formation process where the problem lies.
The presence of large proteins in Stella's urine is due to a problem with filtration.
A problem with filtration is responsible for John's blood test report indicates a high toxin level
A problem with secretion is the reason why Miguel's blood test shows an increase in metabolic waste.
A problem with secretion is why Janice's urine report shows the presence of vital minerals.
What is a nephron?A nephron is the functional unit of the kidneys that is responsible for the formation of urine.
Each nephron has a structure for blood filtration known as the glomerulus. The glomerulus is a network of capillaries that is surrounded by the Bowman’s capsule or the glomerular capsule which is a cup-like structure.
During filtration by the nephron, water and minerals are filtered out of the blood.
During secretion, small molecules such as waste minerals and hydrogen ions pass from the capillaries into the renal tubule and are removed as urine.
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You discover a new type of marine organism that has the kidneys of a fish but no gills. Based on what you know about other aquatic organisms, the newly discovered organism is _____ compared to the surrounding water. hypotonic isotonic hypertonic
The newly discovered organism is hypotonic compared to the surrounding water. Thus, the correct option for this question is A.
What will happen if aquatic organisms have kidneys?The function of the kidneys in aquatic organisms is to excrete excess water by retaining most of the filtered solutes. This makes the aquatic organisms more survival because the retaining of solutes gives more energy.
If the newly discovered organism is hypotonic to the surrounding water, it takes the water from the surrounding atmosphere which is then excreted by the kidney through the retention of filtered solutes. This mechanism is accomplished by simple diffusion. While gills are not present in the newly formed organism.
Therefore, the newly discovered organism is hypotonic compared to the surrounding water. Thus, the correct option for this question is A.
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Which of the following people is most likely to develop varicose veins?
Answer:
An overweight, elderly woman who spends most of the day sitting. is correct
Explanation:
How much work do you do when you lift a 100-N child 0.5m?
Answer:
50 J
Explanation:
Work = F × D
= 100 N × 0.5 m
= 50 Nm / 50 J
Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle cell and thereby initiates the steps of contraction?
Answer:
Explanation:
Motor neurons release acetylcholine from synaptic vesicles to trigger muscle contraction. Motor neurons contain high concentration of synaptic vesicles filled with acetylcholine which is the neurotransmitter that triggers contraction of skeletal muscle cells.
Which cell structure acts like a vault holding the cell's genetic material?
c.
nucleus
cell envelope
b. organelle
d. cytoplasm
a.
Answer:
nucleus
Explanation:
how many phosphates does a molecule of ATP contain
Answer: 3
Explanation:
compare and contrast aerobic respiration, anaerobic respiration, and fermentation.
Answer:
Aerobic respiration is the type of cellular respiration that takes place in the presence of oxygen.
Anaerobic respiration is the type of cellular respiration that takes place in the absence of oxygen.
Fermentation is the process of chemical reaction in which sugar gets converted into carbon dioxide and ethanol induced by micro-organisms.
Explanation:
Aerobic respiration is found in all higher animals and plants.
Anaerobic respiration is found in micro-organisms but rarely in higher organisms.
Fermentation is found in bacteria and some other higher animals (muscle cells in humans).
Aerobic respiration take place in the cytoplasm (glycolysis) and mitochondria (Krebs cycle and electron transport chain).
Anaerobic respiration takes places only in the cytoplasm.
Fermentation belongs to the anaerobic respiration and it takes place in the cytoplasm only.
Aerobic respiration produces 36 ATPs per glucose molecule.
Anaerobic respiration produces 2 ATPs per glucose molecule.
Fermentation produces 2 ATPs per glucose molecule.
Aerobic respiration: carbon dioxide and water.
Anaerobic respiration: lactic acid in animals; carbon dioxide and ethanol in plants or yeast.
Hola everyone! Could someone please double-check my answer :p
*** = my answer
*-*-*-*-*-*-*-*-*-*-*-*
A genetic disease is found in a family that affects the immune system, lungs, heart, and kidneys. A DNA analysis of several affected and unaffected family members be What type of inheritance pattern is shown in this disease?
A. Polygenic trait
B. Codominance***
C. Pleiotropy
D. Incomplete dominance
Answer:
Explanation:
Hola
1. Where are various rocks formed?
2. Difference between oceanic and continel rocks.
Answer:
Explanation:
pt.1 There are three major types of rocks: Metamorphic, Igneous, and Sedimentary. Metamorphic Rocks - Metamorphic rocks are formed by great heat and pressure. They are generally found inside the Earth's crust where there is enough heat and pressure to form the rocks. Metamorphic rocks are often made from other types of rock.
pt.2 The oceanic crust is made up of basalt while the continental crust is made up of granite. The oceanic crust is thinner while the continental crust is much thicker. The oceanic crust is denser than the continental crust. The continental crust has greater buoyancy than the oceanic crust.
vertebrae of which regions are fused in the adult?
Answer:
Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx. Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.
Explanation:
Answer:
our vertebrae are numbered and divided into five regions: cervical, thoracic, lumbar, sacrum, and coccyx
Explanation:
The graph below shows the lung function of test subjects at three different ages who had exposure to ozone gas from the same source and location.
According to the graph, which statement best describes the effects of ozone on human health?
At 0.2 ppm, lung function is worse in subjects older than 20.
At 0.3 ppm, lung function is better in subjects older than 20.
Subjects at age 20 have higher lung function than subjects at age 33.
Subjects at age 27 have lower lung function than subjects at age 20.
Answer:
B
Explanation:
It's Pretty Easy To Know
At 0.3 ppm, lung function is better in subjects older than 20.
Ozone can cause the muscles in the airways to constrict, trapping air in the alveoli. This leads to wheezing and shortness of breath.What is the functions of ozone?The ozone layer acts as a shield for life on Earth. Ozone is good at trapping a type of radiation called ultraviolet radiation, or UV light, which can penetrate organisms protective layers, like skin, damaging DNA molecules in plants and animals.There are two major types of UV light: UVB and UVA.However high amount of ozone can cause is a feeling of irritation in the eyes, nose and throat. Some people may also experience respiratory or heart symptoms such as shortness of breath, chest pain, and wheezing.Hence, B option is correct.
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10. The ATP made during glycolysis is generated by A. Substrate-level phosphorylation B. Electron transport C. Photo phosphorylation D. Chemiosmosis E. Oxidation of NAD and NADH
Answer:
A. Substrate-level phosphorylation
Explanation:
Hope it helps!
