What is one way in which scientists get information about the evolutionary history of species?
A. by comparing organisms' body structures
B. by observing where organisms live
C. by observing what organisms eat
D. by studying how organisms move
Answers
Related Questions
How would the carbon cycle be disrupted if human activities released an extremely large amount of carbon dioxide into the
atmosphere?
A)Plants would have more difficulty engaging in photosynthesis, and a massive amount would die off.
B)Plants and animals in Earth's oceans would have more difficulty processing carbon dioxide, and carbonification would not occur in
deep marine soils.
C)Animals would have more difficulty breathing, and it would be years before the air contained a healthy amount of oxygen.
D)Humans would have difficulty burning wood and fossil fuels, and it would take years before the air contained a healthy amount of
bicarbonate (HCO3-).
Answers
Plants and animals in Earth's oceans would have more difficulty processing carbon dioxide and carbonification would not occur in deep marine soils. The correct option is B
What is carbon cycle?
Carbon cycle can be defined as the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth.
There are four steps of carbon cycle such as :
Carbon enters the atmosphere as CO2CO2 is absorbed by autotrophs such as green plantsAnimals consume plants thereby incorporating carbon into their systemAnimals and plants die their bodies decompose and carbon is reabsorbed back into the atmosphereTherefore, The correct option is B
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What is the correct abbreviation for pan troglodytes (chimpanzee)?.
Answers
Answer:
The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.
Explanation:
Hope this helps you :)
Which of the following best compares seedless vascular plants and nonflowering vascular plants? (2 points)
Both contain xylem and phloem, but seedless vascular plants reproduce sexually and nonflowering plants reproduce asexually.
Both reproduce sexually, but seedless vascular plants produce spores, and nonflowering vascular plants produce cones.
O Seedless vascular plants contain xylem and reproduce sexually, while nonflowering vascular plants contain xylem and phloem and reproduce asexually.
Seedless vascular plants can reproduce sexually or asexually, while nonflowering vascular plants lack flowers or fruit and reproduce asexually.
Answers
Answer: Both contain xylem and phloem, but seedless vascular plants reproduce sexually and nonflowering plants reproduce asexually.
Explanation: we are learning about this in biology right now.
hich of the following is not a function of the plasma membrane? determines which substances enter and leave the cell serves as a boundary between the cell and its environment contains receptor sites which determine how the cell interacts with its environment contains the genetic information marks the cell as belonging to a particular individual
Answers
The function of the plasma membrane does not include containing the genetic information, which is the answer option D.
The plasma membrane is a selectively permeable boundary that encloses the cell and separates its internal environment from the external environment. It determines what substances enter and leave the cell, as well as helps to maintain the cell's internal environment. The plasma membrane also contains receptor sites that allow the cell to interact with its environment and communicate with other cells.
Additionally, the plasma membrane can have markers that identify the cell as belonging to a particular individual, such as in the case of blood group markers on red blood cells. However, the genetic information is stored within the nucleus or nucleoid region of the cell, and is not a function of the plasma membrane.
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Complete Question:
Which of the following is not a function of the plasma membrane?
A. determines which substances enter and leave the cell
B. serves as a boundary between the cell and its environment
C. contains receptor sites which determine how the cell interacts with its environment
D. contains the genetic information
E. mark the cell as belonging to a particular individual
The cluster of air sacs at the end of each bronchiole is called
Answers
Answer:
They are called the alveoli
is it gay to kiss the boys goodnight
'3'
Answers
Answer:
no sir :)
Explanation:
I kiss the girls goodnight <3
what part of the brain coordinates reflexes between body and brain
Answers
Answer:
The brainstem
Explanation:
The brainstem also controls your balance, coordination and reflexes.
HOPE THIS HELPS YOUPLS RATE AS BRAINLIEST ANSWERHow are oxygen levels kept in balnce through photosynthesis? I NEED ANSWER!!!!
Answers
Answer:
Plants and animals use oxygen to respire and return it to the air and water as carbon dioxide (CO2). CO2 is then taken up by algae and terrestrial green plants and converted into carbohydrates during the process of photosynthesis, oxygen being a by-product.
Explanation:
im so sorry if this is wrong i looked it up i dont know if its what your looking for or not
Which of the following words uses the same
meaning of the prefix "co-" as it means in the
word "codominance?"
- Contradict
- Cooperate
-Coca Cola
-Counter
Answers
The answer you're looking for is "Cooperate", since it means two or more people working together, and "Codominance" means two or more different versions of the same gene are present in one offspring (in biology)! I hope this helps :)
Answer:
Cooperate
Explanation:
The word "codominance" means to have two dominant genes. The prefix co in this scenario means two, just like in the word cooperate, which means two people working together to meet the same goal.
Understand prefixA prefix is a syllable that is added to the beginning of a word. This helps define and change the meaning. Example: Indefinite. The base word is 'definite' and means to be without doubt. But when you add the prefix 'in', it translates to uncertain or vague. This is because the prefix 'in' means 'not'.
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which of the thoracic vertebrae contain only a single costal facet on each side of its body
Answers
The vertebrae that fit this description are the T10, T11, and T12 vertebrae in the thoracic region of the spine.
The thoracic vertebrae are the bones that make up the middle segment of the vertebral column. Each thoracic vertebra typically has two costal facets on each side of its body, which are smooth surfaces that articulate with the ribs. However, the T10, T11, and T12 vertebrae are exceptions to this pattern.
These three thoracic vertebrae, namely T10, T11, and T12, only have a single costal facet on each side of their bodies. This means that they each have only one smooth surface for rib articulation instead of the usual two. As a result, the ribs that attach to these vertebrae have only one corresponding surface for connection.
It's worth noting that the presence of a single costal facet on each side of these vertebrae is a characteristic feature that distinguishes them from the other thoracic vertebrae, which have two costal facets.
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Which of the following answer choices would be considered the
simplest?
Answers
Answer:
the smallest one
Explanation:
Which observation can people make because the Sun is the closest star to Earth?
a. the sky appears red at sunrise and sunset
b. the sun appears brighter than the other stars
c. the other stars appear to move in the night sky
d. he sun appears highest in the sky during summer
Answers
Answer:
Explanation:
nuclear fusion.
Biology HELPP
-Which statement is supported by the diagram ?
Answers
The statement supported by the diagram is B. The end products of photosynthesis do not provide energy for respiration.
What is the diagram about?The diagram shows that the sun is the source of energy for photosynthesis, and that the end products of photosynthesis are carbohydrates and oxygen. Carbohydrates are energy-rich molecules, while oxygen is an energy-poor molecule.
The mitochondria use the energy from carbohydrates to produce ATP, which is used for a variety of cellular tasks, including biosynthesis, active transport, mechanical work, and bioluminescence. The mitochondria do not use the sun's energy directly. They use the energy from carbohydrates, which are produced by photosynthesis.
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the nurse working on a bone marrow unit knows that it is a priority to monitor which of the following in a client who has just undergone a stem cell transplant?
Answers
Transplants are performed for various reasons depending on the specific medical condition of the individual. The nurse knows that it is a priority to monitor the client's blood cell counts and immune function.
Following a stem cell transplant, monitoring blood cell counts and immune function is crucial to ensure the client's well-being and detect any potential complications. The transplant process involves the infusion of stem cells, which can take time to engraft and start producing new blood cells.
The nurse will monitor the client's complete blood count (CBC), including red blood cells, white blood cells, and platelets, regularly. Low blood cell counts can lead to anemia, increased risk of infections, and bleeding tendencies. Monitoring these counts helps the nurse identify any abnormalities or signs of engraftment failure.
Additionally, the nurse will assess the client's immune function through regular evaluation of white blood cell subsets, such as T-cells and natural killer (NK) cells. The immune system plays a vital role in protecting the body from infections and other diseases. Monitoring immune function helps detect potential immunodeficiency or immune system complications that may require intervention.
Close monitoring of blood cell counts and immune function allows the nurse to promptly identify and address any abnormalities or complications, ensuring optimal recovery and minimizing the risk of infections and other post-transplant complications.
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Oxygen is carried around the body by the red blood cells.
Group of answer choices
True
False
Answers
Answer: So therefore it is True.
Explanation: Red blood cells carry fresh oxygen all over the body. This is important to your health. Red blood cells are round with a flattish, indented center, like doughnuts without a hole.
Answer:
ur mom
Explanation:
four million years ago, the lake dried out, creating two new lakes, lk1 and lk2. there is now a total of six species in the two lakes: d, e, and f in lk1, and g, h, and i in lk2. which is the most likely phylogeny?
Answers
The most likely phylogeny for the six species in lakes LK1 and LK2 is LK1: d -> e -> f LK2: g -> h -> i, although the lakes were formed four million years ago when the former lake dried up. Here option A is the correct answer.
Determining the most likely phylogeny for the six species in lakes LK1 and LK2 would require an understanding of the evolutionary relationships between the species. While it is not possible to definitively determine the phylogeny without further information or analysis, some general assumptions can be made.
Based on the fact that the two lakes were created four million years ago when a previous lake dried out, it can be inferred that the six species likely diverged from a common ancestor within this timeframe. This suggests that the species may be more closely related to each other than to species outside of the two lakes.
In terms of the possible phylogenies presented in the multiple-choice options, it is difficult to definitively determine which is the most likely without further information. However, one possible approach would be to consider the order in which the species are listed in each lake. For example, if the order of the species in one lake is the same as the order in the other lake but in reverse, this could suggest a possible evolutionary relationship between the species.
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Complete question:
What is the most likely phylogeny for the six species in lakes LK1 and LK2, given that the lakes were created four million years ago when a previous lake dried out?
A) LK1: d -> e -> f LK2: g -> h -> i
B) LK1: f -> e -> d LK2: i -> h -> g
C) LK1: d -> f -> e LK2: i -> g -> h
D) LK1: e -> f -> d LK2: g -> i -> h
describe the relationship between the dimensions of the rectangular solids and their sa-v ratios
Answers
The relationship between the dimensions of rectangular solids and their surface area-to-volume (SA-V) ratios is that as the dimensions increase, the SA-V ratio decreases. This means that larger rectangular solids have a smaller ratio of surface area to volume compared to smaller ones.
In a rectangular solid, the surface area is determined by the sum of the areas of all six faces, while the volume is found by multiplying its length, width, and height. The SA-V ratio can be used to analyze properties like heat transfer and diffusion rates in various objects. When the dimensions of a rectangular solid increase, its volume grows faster than its surface area, leading to a lower SA-V ratio. This has implications in various fields, such as biology, where cells divide to maintain a high SA-V ratio for efficient exchange of nutrients and waste.
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what is the first step to sanitizing stationary equipment?
Answers
Cleaning is the first step in sanitizing stationary equipment. It should be done using warm water and soap. Make sure to remove all visible dirt and debris.
To sanitize stationary equipment, there are several steps to follow. These steps ensure that all surfaces are cleaned and free of harmful bacteria. The first step is cleaning, which involves removing visible dirt and debris. Here is how to clean stationary equipment:
1. Prepare cleaning solution: Mix warm water and soap in a bucket. Use a mild detergent that won't damage the equipment.
2. Remove debris: Use a scrub brush or cloth to remove any visible dirt or debris from the surface of the equipment.
3. Rinse: Rinse the equipment thoroughly with clean water. Make sure to remove all soap residue.
4. Dry: Use a clean towel to dry the equipment.
After the equipment has been cleaned, it can be sanitized using an appropriate sanitizer. This will kill any remaining bacteria and ensure that the equipment is safe to use. It is important to follow the manufacturer's instructions when using a sanitizer to ensure that it is used correctly.
Sanitizing stationary equipment is important to ensure the safety of users and prevent the spread of harmful bacteria. The first step in sanitizing stationary equipment is cleaning.
This involves removing visible dirt and debris from the surface of the equipment. To clean stationary equipment, prepare a cleaning solution by mixing warm water and soap in a bucket. Use a mild detergent that won't damage the equipment.
Next, use a scrub brush or cloth to remove any visible dirt or debris from the surface of the equipment. Rinse the equipment thoroughly with clean water to remove all soap residue.
Finally, use a clean towel to dry the equipment. Once the equipment has been cleaned, it can be sanitized using an appropriate sanitizer. This will kill any remaining bacteria and ensure that the equipment is safe to use. It is important to follow the manufacturer's instructions when using a sanitizer to ensure that it is used correctly.
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could someone pls help and give an explanation on how u found ur answer? ill mark brainiest
Answers
Answer: By analyzing the graph i got my answer. The graph shows tat when squirrel population went down the amount of acorns went down also.
Explanation:
Answer:
yeah i would say c because the otherones would not be correct
Explanation:
have a good day :)
What happens to water when it rains?
Answers
Which of the following pollutants commonly make their way to bodies of
water via agricultural runoff?
1. Fertilizers
11. Pesticides
III. Eroded soil
Answers
Answer: i believe the answer is I and II only
Explanation:
Answer: its i, ii and iii
Explanation:just did it
How do angiosperms differ from gymnosperms?A. angiosperms flower, gymnosperms don notB. angiosperms produce pollen, gymnosperms fo nowC.angiosperms are vascular plants, gymnosperms are notD. angiosperms produce seeds, gymnosperms do notE. angiosperms have secondary growth, gymnosperms for not
Answers
B. angiosperms produce pollen, gymnosperms now do angiosperms differ from gymnosperms
In what ways are angiosperms different from gymnosperms?The development of the seeds is the primary distinction between angiosperms and gymnosperms. An angiosperm's ovaries are where its seeds grow, which are encased in a fruit for protection. The plants that produce gymnosperm seeds lack fruits and flowers and their seeds are often generated in unisexual cones called strobili.
The male sex organs of angiosperms are called stamens. Anthers are located at the end of stamens. Pollen is created here. The pistil, which is the flower's feminine portion, must be visited by the pollen.
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Help me pleeeeeeaaaaaaase.
1) Which class of vertebrates are ectothermic animals that live both on land and in water?
fish
reptiles
amphibians
birds
2) What type of symmetry is most common in the vertebrate group?
haphazard symmetry
radial symmetry
bilateral symmetry
unilateral symmetry
3) Which characteristic is unique to invertebrates?
They have a spinal column.
They are immobile.
They have no defined organ systems.
They have bilateral symmetry.
4) Some animals have a well-defined skeleton and a backbone. Under which category of animals are they placed?
arthropods
invertebrates
vertebrates
echinoderms
Answers
Amphibians are ectothermic animals that live both on land and in water. The bilateral symmetry type of symmetry is most common in the vertebrate group. They have a spinal column that is unique to invertebrates. The animals have well-defined skeletons and a backbone. Under which category of animals are they placed under vertebrates.
The most common feature of the phylum vertebrate is having a backbone. The backbone is also referred to as the spinal cord. Vertebrate is the subphylum under Cranita and is also prominently present under the phylum Chordata.
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Amoeba Sisters Video Recap: Prokaryotic vs. Eukaryotic Cells 7. At the end of the video, there's a vocabulary challenge mentioned. Can you use the vocab to create your own sentences to compare and contrast prokaryotic cells with eukaryotic cells? If you need more space, you can attach an additional sheet of paper.
Answers
Answer:
True nucleus and organelles.
Explanation:
The main difference between Prokaryotic cells and Eukaryotic Cells are given below.
Prokaryotic cells have no true nucleus while Eukaryotic Cells have true nucleus. true nucleus means that membrane is surrounded the nucleus which clearly show the nucleus. Prokaryotic cells have no organelles while eukaryotic cells have organelles which perform specific function in the cell. these organelles are plasma membrane, ribosome, mitochondria, vacuoles, cytoskeleton, plastids and endoplasmic reticulum.
True nucleus and organelles.
What is the difference between prokaryotes and eukaryotes?
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.
Thus, the True nucleus and organelles are the answer.
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Use each of the following terms in a separate
sentence.
1. DNA
2. Sexual reproduction
3. Gene
4. Gene expression
5. Noncoding DNA
Please help
Answers
Sexual reproduction involves the fusion of two gametes, typically from different individuals, to produce offspring with genetic diversity.
A gene is a segment of DNA that contains the instructions for a particular trait or function.
Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product, such as a protein.
Noncoding DNA refers to segments of DNA that do not contain the instructions for making proteins, but may still play a role in gene regulation and other cellular processes.
3. How are frog eggs being used in research involving human cells?
Answers
please help I WILL GIVE BRAINALIST
Answers
Answer:
b
Explanation:
Answer:
B. decreased biodiversity
Explanation:
a muscle fiber is stimulated with increasing frequency individual twitches be to summate if no relaxation occurs between twitches the contraction is called
Answers
A muscle fiber is stimulated with increasing frequency individual twitches be to summate if no relaxation occurs between twitches the contraction is called Fused tetany .
Fused tetanus is when the muscle fibers are not relaxed between stimuli and it occurs during a high rate of stimulation. A fused tetanic contraction is measured as strongest single-unit twitch in contraction. When tetanized, the contracting tension in the muscle remains constant in a steady state.
Fused tetanus is caused by electrolyte imbalances most often low blood calcium levels. It's important to talk to your healthcare provider if you're experiencing tetany. They may require immediate medical treatment.
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you don’t need to answer 11 because i need to watch a video for it. but plssss
20 points:)
Answers
Answer: 7. Adenosine triphosphate 10. Endocytosis is the cellular process in which substances are brought into the cell.
Explanation: Sorry, I could only answer 7 and 10. I’m more of a person who answers straight-forward questions. I don’t really like fill in the blanks.
If the mrna is damaged, it directly interferes with the ability of a animal cell to do which of the following?
Answers
Answer:
Proteins.
Explanation:
If the mRNA is damaged, it directly interferes with the ability of producing proteins in animal cell because mRNA is responsible for carrying the protein blueprint from a cell's DNA to its ribosomes which are considered as the machines of the cell that produces proteins for the cell. These messenger RNA has the information about what type of proteins are required to produced for the cell. So if mRNA is damaged, the ribosomes are unable to produce proteins for the cell.