Answer:
True
Explanation:
The lungs eliminate CO2 gas from the body.
PLZ ANSWER
What did scientists like Darwin use to group species before DNA, and why do you think DNA is better to classify species."
Answer:
he use to group beans I may be wrong
Explanation:
Answer:Darwin noticed that some fossils of extinct animals were similar to living species. What did Darwin notice when he compared some fossils to living species? Hutton and Lyell concluded that Earth is extremely old. Also, the processes that changed Earth in the past are the same processes that operate in the present.
Explanation:
A wildfire burns a region of a healthy grasslands ecosystem. Which climax community will MOST LIKELY arrive in the burned region due to
ecological succession?
O
A. a grasslands ecosystem, very similar to the original
O
B. a community of pioneer species, such as lichens
O
C. a grasslands ecosystem of plants only, without animals
O
D. a patchwork of grasslands, hardwood forest, and other ecosystems
Answer: A
Explanation:
Final answer:
After a wildfire, ecological succession in a grassland's ecosystem begins with pioneer species and eventually leads back to a climax community resembling the original grasslands, complete with both plants and animals.
Explanation:
Following a wildfire, the region of a healthy grasslands ecosystem undergoes a process of ecological succession. The process begins with the colonization of pioneer species, such as grasses, which quickly grow and spread after the disturbance. As the environment changes through the growth of these pioneer species, intermediate species like shrubs and small trees start to establish. With time, this succession leads to the development of a climax community, a stable and mature ecosystem that resembles the original grasslands.
Therefore, the answer to the question is A. a grasslands ecosystem, very similar to the original. This climax community is characteristic of the grasslands' climate and geology and includes a balanced mix of plant and animal species that were present before the wildfire.
Which natural occurrence is an example of a long-term environmental change?
Lightning sparks a forest fire.
An earthquake results in a tsunami.
A river floods due to a strong thunderstorm.
The peppered moth evolves from a light to a dark color.
Answer:
D
Explanation:
The peppered moth evolves from a light to a dark color
Answer:
d
Explanation:
the moth changes its color due to its environment changing overtime
hope this helps!!!
What is the largest particle size that a stream can transport at a velocity of 5 centimeters per second?
Answer Choices
A)Cobble
B)pebble
C)Sand
D)Silt
Answer: sand
Explanation:
sand is much lighter and can be carried further
When there is a change in the position of an object with reference to time is called velocity. It is measured in meters covered in seconds and is calculated by dividing the distance by the taken time.
The most considerable particle that can be carried by the stream is:
Option C) Sand
The particles can be explained as:
Sand or small gravels are the largest particles that can be carried by streams as they are light in weight and small in size. This makes the stream water to transport them from one position to another easily.Cobbles, silt and pebbles are big in size and heavy in weight making it difficult for stream water to carry that particle with their flow speeds.Therefore, sand will be carried by the streams.
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A squirrel sees a cat and runs up a tree, is this an example of internal or external stimuli? PLEASE HURRY
Answer:
external
Explanation:
the cat is outside
Answer:
External
Explanation:
Because it is a change outside the body, or knowledge that is passed through our senses.
Hope this helps!!!
Which may result from poor air quality
Answer:
If you dont have good air quality or it is polluted you might get sick and you would have increased respiratory problems and irritation of your airways since all that is going on and decreased lung function you can evently die .
A few characteristics of the koala are listed below:
• segmented body
• jaws, limbs, and hair
• no placenta used during reproduction
Where does the koala belong in the cladogram shown below?
A) D
B) E
C) G
D) F
Answer:
F
Explanation:
Turtle and hair
The Koala belongs to the letter F in the cladogram. So, the option D is correct.
What do you mean by Cladogram?A cladogram may be defined as a type of diagram that shows speculative relationships between groups of organisms of the same species or different ones.
According to the characteristics described above, the koala belongs to the letter F in the cladogram that reveals the modification of organisms from the ancestor to the most recent.
Therefore, the correct option for this question is D.
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The
cells provide a means of acquiring nutrients in the brain.
a. Astrocyte
b. Microglia
c. Ependymal
d. Oligodendrocyte
Answer:
Your answer is a
Explanation:
Astrocyte
We can choose to eat _____ foods, which are healthy and do not have pesticides and hormones
Can someone please describe the relationship between immunity and vaccines
Answer:
Vaccines stimulate the body's own immune system to protect the person against subsequent infection or disease." ... The immune system develops antibodies to the disease so that it cannot make you sick again. Immunization describes the actual changes your body goes through after receiving a vaccine.
Answer:
immunity means that you can not get a disease and a vaccine means that you will get the disease from getting the shot and it will build up your immune system to be stronger.
Explanation:
The equation shown represents cellular respiration. X + Oxygen → Y + Water + Energy What do X and Y most likely represent?
Answer:
carbohydrate + oxygen = carbon dioxide + water + energy
Write 3-5 sentences based on your knowledge of moon phases.
The diagram below shows the two main parts of the human nervous system.
What are the names of the parts of the nervous system labeled A and B?
please help!!!!!!!!!!!
The human nervous system comprises the Central Nervous System (brain and spinal cord) and the Peripheral Nervous System (nerves branching out from the CNS). Labels 'A' and 'B' on your diagram could likely represent these two parts respectively.
Explanation:The human nervous system is mainly divided into two parts: The Central Nervous System (CNS) and the Peripheral Nervous System (PNS). It's impossible to directly specify what your labels 'A' and 'B' are without seeing your diagram. However, generally, 'A' might refer to the Central Nervous System, which includes the brain and spinal cord. These are the main control centers for the body, processing information and issuing responses. 'B' might indicate the Peripheral Nervous System, which includes all the nerves that branch out from the brain and spinal cord and reach the rest of the body. These nerves carry signals back to the brain and spinal cord.
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Free Brainly For Correct Answer!
Answer:
Fact, opinion,fact
Explanation:
How is your body able to fight and clear some viral infections over time?
3. What structure is used to transport organic molecules from the leaf to other parts of the plant?
The structure used to transport organic molecules from the leaf to other parts of the plant is the phloem.
Phloem is a unique tissue found in plants that is organized into a network of interconnected tubes or sieve components. Phloem vessels are made up of these tubes and supporting cells. The main job of the phloem is to move organic compounds such as sugars, amino acids and hormones from the plant's photosynthetic site in the leaves (source) to other areas where they are needed (sink). Translocation, a method of transport that relies on pressure gradients and active transport processes, is how this movement is accomplished.
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I only need 3 questions answered plz there really important ‼️
Answer:
H20 for your third one
Explanation:
(look up an ionic bond)
What type of caterpillar is this
How many genes for a trait does the offspring have?
Answer:
A trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent.
Explanation:
Based on the species names you've been working with in this dichotomous key,
which of the options below is the correct way to write the scientific name of a house
cat?
felis Catus
Felis Catus
Felis catus
About one in every 33 babies is born with a birth defect. Not all birth defects can be prevented, but a woman can take steps to increase her own chance of having a baby with the best health possible. To avoid the possibility of birth defects, pregnant women should AVOID exposure to all but one of these. That is
A)
drug use.
B)
alcohol use.
C)
folic acid.
D)
cigarette smoking.
Answer:
C
Explanation:
Which of the following statements correctly describes how the jet stream effects local weather?
As the jet stream moves southward, it will bring with it colder temperatures.
Air pressure south of the jet stream is greater than north of the system.
O Clear nice weather follows along the jet stream as its winds move eastward.
O The jet stream moves storms in to areas with its slow low level winds.
The jet stream influences local weather by directing air masses which bring certain conditions like temperature changes and precipitation. Its southward movement often brings colder air, and it also moves storm systems. Weather clarity is not directly related to the jet stream.
Explanation:The jet stream is a narrow band of high-speed winds in the atmosphere that can greatly influence local weather. When the jet stream moves, it can create shifts in weather by directing air masses to different regions, bringing with them certain weather conditions.
Also, the jet stream can direct storm systems, moving them towards areas with its winds, thereby influencing precipitation patterns. The speed of the jet stream's winds is a significant factor, not its pressure differentials, hence the second statement is incorrect. Finally, the jet stream does not necessarily result in clear, nice weather; the conditions depend on many other factors as well.
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1
Which of the following is a necessary step in the process of speciation?
Differential success
Environmental instability
Genetic mutation
Reproductive isolation
Answer:
Genetic Mutation
Explanation:
Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time.
There are a number of different mechanisms that may drive speciation.
Two of them to point out here.
1. natural selection
2. genetic drift
genetic drift describes random fluctuations in allele frequencies in populations, which can eventually cause a population of organisms to be genetically distinct from its original population and result in the formation of a new species.
The step which is necessary for speciation is, Reproductive isolation Therefore, the correct option is D.
What is speciation?Speciation is the process by which a single species splits into two or more distinct species. It occurs when populations of the same species become reproductively isolated from each other, meaning that they are no longer able to interbreed and produce viable offspring. This reproductive isolation can occur through various mechanisms, such as geographic isolation, behavioral isolation, or genetic incompatibility.
Differential success, environmental instability, and genetic mutation can all contribute to the process of speciation, but they are not necessary steps. Therefore, of the options provided, “Reproductive isolation” is the necessary step in the process of speciation. Hence, the correct option is D.
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The question is incomplete, but most probably the complete question is,
Which of the following is a necessary step in the process of speciation?
A. Differential success
B. Environmental instability
C. Genetic mutation
D. Reproductive isolation
8. Muscle fatigue and soreness may result when..
a. ATP consumption equals
ATP production.
b. ATP consumption is less than ATP production.
C. ATP consumption exceeds ATP production.
d. All of the above
Answer:
D - All of the above
Explanation:
All of these occur for muscle fatigue
hope it helps!! :)
what is the source of the elements for the glucose that the plant makes?
Answer:
carbon dioxide and water (hydrogen dioxide)
Explanation:
the plant breaks both compounds down into their elements, puts the oxygen back into the atmosphere as waste, and uses the carbon and hydrogen to make glucose through phosynthesis through use of sunlight
The source of the elements for the glucose plants produce are water from the soil and carbon dioxide from the air, which are used in the process of photosynthesis.
Explanation:The elements for the glucose that plants make come primarily from water (H2O) in the soil and carbon dioxide (CO2) in the air. These elements are used in the process of photosynthesis, which occurs mainly in the chlorophyll-containing cells in the leaves of plants. Water, absorbed by the plant roots, provides the hydrogen and oxygen atoms, while carbon dioxide, taken in through small holes in the leaves called stomata, supplies the carbon. These elements are then recombined to produce glucose (C6H12O6) and oxygen (O2).
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Which of the following are potential musculoskeletal side effects of some prescription medications?
joint pain
joint inflammation
muscle weakness
bone fracture
All of the above are potential musculoskeletal side effects of some prescription medications.
Musculoskeletal side effects can be associated with various prescription medications. Some common musculoskeletal side effects include:
Joint pain: Certain medications may cause joint pain as a side effect. This can manifest as discomfort, soreness, or pain in the joints.
Joint inflammation: Inflammation of the joints, known as arthritis, can be a side effect of certain medications.
Muscle weakness: Some medications may lead to muscle weakness or a general feeling of fatigue in the muscles.
Answer:
A. Joint Pain
B. Joint Inflammation
C. Muscle Weakness
Explanation:
Edge 2023
The process of photosynthesis converts carbon atoms from carbon dioxide into _______. A. sugars B. hydrogen C. oxygen D. salts
Answer:
A. sugars
Explanation:
The photosynthesis equation is:
CO2(carbon dioxide)+ H2O (water) +sunlight --> O2(oxygen) + C6H12O6 (glucose)
Photosynthesis makes sugar (glucose) and oxygen. But, oxygen is just oxygen, and there are no carbon atoms in O2.
Glucose is C6H12O6, and the C represents carbon. So, photosynthesis converts carbon atoms from CO2 to sugars.
Therefore, the choice is A.
All of the following are factors that affect a population’s size EXCEPT
A Availability of resources.
B Changes in the environment.
C Reproductive success.
D No exceptions - all statements are true.
Answer:
I believe that the answer is D.
Hope this helps!
Final answer:
Population size is influenced by factors like resource availability, environmental changes, and reproductive success; with various demographic characteristics further shaping population dynamics.
Explanation:
The factors affecting a population's size include a variety of elements such as availability of resources, changes in the environment, and reproductive success. Availability of resources, such as nutrients and water, can limit or support population growth. Changes to the environment, including both density-independent factors like natural disasters and density-dependent factors like predation and disease, can reduce or occasionally boost population numbers. Lastly, reproductive success, influenced by genetics and mating patterns, also determines how quickly a population can grow or decline. Various demographic characteristics like birth and death rates, as well as life expectancy, are vital in understanding population dynamics, which are often represented in the form of life tables.
PLZ HELP Which number in the hydrologic cycle diagram represents the process of water vapor becoming a liquid? PLZ FAST MY UNIT TEST IS TIMED
1
2
3
4 whoever answers gets BRAINEST !!!
Answer:
The answer might be 2
Explanation:
In the hydrologic cycle diagram, the process which represents the process of water vapor becoming a liquid is represented by 2. Thus, the correct option is 2.
What is Precipitation?The water cycle is also known as the hydrologic cycle or the hydrological cycle. Water cycle is a biogeochemical cycle which describes the continuous movement of water molecules on, above and below the surface of the planet Earth.
Precipitation can be defined as any liquid or frozen water which forms in the atmosphere and falls back to the surface of earth. Precipitation comes in many forms, like rain, sleet, and the snow. Along with the process of evaporation and condensation, precipitation is one of the three major parts of the global water cycle.
Therefore, the correct option is 2.
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How does the digestive system of poultry vary from other animals?
Answer:
They digest without the use of teeth.
Explanation:
The food trickles from the crop into the bird's stomach (proventriculus or gizzard) where digestive enzymes are added to the mix and physical grinding of the food occurs. The gizzard is why chickens do not need teeth.