Answer:
Crossing over is the process by which genetic material is exchanged by non-sister chromatids during meiosis.
Crossing over results in a new combination of genetic information for the cell for a specific trait.
Crossing over ensures that organisms are not identical from generation to generation.
Genetic recombination allows for a variation in genetic material that is passed through the generations.
Explanation:
Which of the following is a segmented animal with an exoskeleton and jointed appendages
Could be:
Insects, spiders, crabs, and scorpions
Best regards
why do people think the earth is flat?
There's no actual awnser but maybe someday we can go through ones mind and see why they don't like the truth
there’s like no real answer lol. they just want to prove a point that everyone is wrong. or maybe since we don’t see any curves or round edges when we walk
When scientists uncover a fossil, they record the precise location where the fossil was found. Does this location provide useful evidence for conclusions about the fossil and evolutionary processes?
A. Yes. Patterns in the distributions of fossils and living species are useful evidence of evolution.
B. No. Evidence for evolution comes only from body structures, not the environment of organisms.
C. Yes. Evolution occurs only in certain locations on Earth, and not others. D. No. Fossils and living species are distributed evenly across all of Earth's land and water.
A. Yes. Patterns in the distributions of fossils and living species are useful evidence of evolution.
Answer:
A. Yes. Patterns in the distributions of fossils and living species are useful evidence of evolution.
Explanation:
Data shows that presence or the absence of the continents and the islands provides evidence of the descent and shows us the specification of species. As the same species would be found in the same habitats that are capable of supporting a particular species in a geographical area as Africa or South America. Evidence have also been found in Australia that has marsupials like the kangaroos and quills that were not present in Africa and in small numbers in south America. Similarly, the fossils are found in areas know adjacent to each other and through the process of the continental drift, they diverged in wide geographical areas.Which of the following pairs are isotopes of the same element
5452165256+6216510680498
The correct pair of isotope is [tex]_{6}^{12}L , _{6}^{14}L[/tex], the correct option is C.
What are isotopes?Isotopes are members of an element family that have the same number of protons but differ in the number of neutrons.
The correct pair of isotope is [tex]_{6}^{12}L , _{6}^{14}L[/tex].
Thus, the correct option is C.
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The missing part of question is attached below as image.
the diagram below represents the time a cell spends in the two main phases of the cell cycle. what is happening in the phase represented by the yellow area?
D) the cell is dividing
Answer:
The correct answer will be option-D.
Explanation:
The cell cycle is the sequential steps of events which explains the duplication of the genetic material and division of the cell into daughter cells.
It usually takes place in 24 hours where it is divided into four phases: Gap 1 (G₁), Synthesis phase, Gap 2 (G₂) and Mitotic phase (M phase). M phase can be marked easily as it takes place during the short period of time usually in one hour.
In the given question, the marked area represents the shortest phase or M phase during which cell divides its nucleus and cytoplasm, therefore, is considered the cell division phase.
Thus, option-D is the correct answer.
which human activity most directly causes a significant increase in the amount of carbon dioxide in the atmosphere
-Cattle raising
-Continue extracting petroleum
-Using petroleum derivates
-Eating meat
-Extremal consumerism
As precipitation infiltrates into the subsurface soil, it generally forms an unsaturated zone and a saturated zone. In the unsaturated zone, the voids—that is, the spaces between grains of gravel, sand, silt, clay, and cracks within rocks—contain both air and water. Although a lot of water can be present in the unsaturated zone; why can't this water be pumped by wells?
A)
Soils, like clay, absorb water quickly.
B)
Sinkholes collect water above the water table.
C)
Land with no slope lets water runoff at a fast rate.
D)
Water in the soil zone is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere.
Answer:
d
Explanation:
Answer:D) Water in the soil zone is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere.
Explanation: Water in the subsurface soil zone is held together by capillary forces. It is also used by plants to carry out their life processes. The soil zone is crisscrossed by roots, openings left by decayed roots, and animal and worm burrows, which allow the precipitation to infiltrate into the soil zone. Water can also evaporate directly into the atmosphere.
. Some family farmers store animal droppings in containers and capture natural gas from the droppings for fuel. What is the fuel called? methane propane ethane octane
ANSWER:
The fuel is called methane.
Which if the following statements best explains why the plant life cycle is described as an "alternation of generations"?
Answer
Hi,
The correct answer option is (D). The plant life cycle goes back and forth between a haploid stage and diploid stage
Explanation
Two distinctive stages exist in plant life namely; the gametophyte stage and the sporophyte stage. When plants mature, the diploid sporophyte produce spores by the process meiosis that later divides by mitosis to produce a haploid gametophyte. The newly formed gametophyte produces gametes and the cycle starts once more.
Best wishes!
which area would have the highest salinity
Answer: high rates of evaporation
Salinity is the measure of amount of salt dissolved in the water. The area with a plenty of run off will have very low salinity as the run off will take away the surface particles might be containing salt in it. The area with high rates of precipitation will have very low salinity this is because of the fact that the rainfall will take away the salts present on the surface to other location because of water erosion.
The area with high rates of evaporation will have highest salinity because the water or other liquid components gets removed from the surface leaving behind all the solid sediments which may also include salts.
58:27 Which describes the greenhouse effect? an artificial process a dangerous process a natural process a new process
The greenhouse effect is a natural process, but if we put too much chemicals in the atmosphere we can increase the effects. But yes, it is Earth's way of keeping us from burning or freezing to death. It is natural.
Answer:
A natural process
Explanation:
It is a natural process due to the Earth's surface being heated up by certain gasses.
Hope it helps!
(Credit to person above me, they answered first :D)
What term is used for the study of non living parts of earth?
A. Chemistry
B. Geology
C. Ecology
D. Biology
Correct option is B. The study of nonliving parts of Earth is called geology, a physical science that focuses on the solid aspects of Earth and other celestial bodies.
Physical Science and Earth's Nonliving Components
The term used for the study of nonliving parts of Earth is geology. Geology is a physical science field that focuses on the solid Earth, the rocks of which it is composed, and the processes by which they change. This contrasts with biology and ecology, which study living components and their interactions with the environment. Chemistry, while part of the physical sciences, focuses on the composition, structure, properties, and change of matter. Therefore, the correct answer to the question is B. Geology.
Understanding geology provides insights into Earth's history and is essential for various applications such as resource extraction, environmental protection, and studying the solid features of celestial bodies. It's an integral part of physical science, along with other fields like astronomy, physics, and chemistry, which together contribute to the comprehensive study of nonliving matter.
Which of the following countries currently uses the English System?
A) United States
B)France
C) England
D)Canada
Mosses are classified as bryophytes. Which best describes mosses?
Mosses are classified as bryophytes. The statement that best describes mosses is; mosses are seedless plant. Hope this helps
Source-Wiki
Answer:
The answer is A
Explanation:
You transcribed dna to make and build a sequence of amino acids through
You transcribed dna to make and build a sequence of amino acids through proteins.
Best regards
Answer: mRNA, translation, and RNA
Explanation:
list these ancestors of modern man, from oldest to youngest. Australopithecus Afarensis.
Homo Erectus.
Homo Heidelbergensis.
Homo Antecessor.
Homo Habilis
Oldest Australopithecus Afarensis
Homo Habilis
Homo Erectus
Homo Heidelbergensis
Homo Antecessor
How are small leaves an adaptation in a desert environment?
They minimize water loss
mark brainliest ;0
Typical rates of sea-floor spreading are approximately _____. 5 kilometers per year 50 centimeters per year 5 meters per year 5 centimeters per year
25 percent faser
please give me brainly
Answer:
Option D, 5 centimeters per year
Explanation:
Sea floor spreading is defined as the rate of movement of sea floor after cracking. It is usually measured as the distance moved per year by the broken sea floor (also called as ridge movement).
An intermediate ridge moves at the rate of 5 to 9 cm/year while a fast ridge moves at the rate of 10 cm /year.
Hence among the given answers the most suitable answer is option D
What makes stars produce energy
Answer:
nuclear fusion
Explanation:
Please help me I am really bad at science
1a. Heron, Trout, Mayfly, Algae
1b. C
1c. C
1d. I don't know this one
I hope this is helpful...
1a. Heron, Trout, Mayfly, Algae.
1b. This answer is going to be C.
1c. This answer will also be C.
1d. I would go with C. 150 kg.
Which of the following is the study of the independence of all living things and their environment?
If ecology is an option than it is that.
The table below shows the maximum depth up to which some shallow water coral species can establish their colonies.
Depth of Colonies
Species Maximum Depth
W 44 m
X 39 m
Y 48 m
Z 31 m
Which coral species is most likely to die out when the surface ocean temperature rises?
W
X
Y
Z
Answer: option D. (Z)
Explanation: Z is the most shallow out of the rest of the options, which means that that space/area would died quicker.
hope this helped!!
~potato ✿ ♡
Answer:
I believe it would be D aka Z
Explanation:
Im taking the same test rn
Give one example of a question that science could test. Then, explain in your own words why it is an example of a scientific question.
Help? Lol.
The example of a testable scientific question is as follows:
One that comprises two variables such as the independent variable and the dependent variable.
What Is a Scientific Question?Scientific Question is refer to as the which must have objective, and they must be testable. This means that the answer to a question must be able to be proven true repeatedly.
Does the angle of a walk change the distance a toy car will travel?
This question comprises independent variable (ramp angle) and dependent variable (distance the car travels).
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Tundra ecosystems are considered to be fragile because of
Answer:
Tundra ecosystems are considered to be fragile because the short growing season.
Explanation:
Hope this helps
Answer:
low biodiversity
Explanation:
This food chain can be found in the coastal waters of Virginia
hope this helps mannnnnnnnnnnnnnnnnnnnnn
DAMEFISH would be your correct answer
The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and dense, have few moons, no rings, and are relatively small. These planets also differ in many ways, as shown in the chart. For example, Venus is the hottest planet on the chart, even though Mercury is closer to the Sun. The temperature difference between Venus and Earth is significantly greater than the difference between Venus and Mercury, even though Venus lies close to midway between those two planets. Which statement elaborates on the cause of this wide range of temperatures between terrestrial planets?
The correct answer is - the atmosphere.
All of the terrestrial planets have atmospheres, but all them differ in their composition and density too. Venus has the highest temperature of the terrestrial planets, higher even then Mercury despite being closer to the Sun, because it has very dense atmosphere. Also, the key moment with the dense atmosphere of Venus is that it is mostly composed of carbon dioxide. The carbon dioxide is a gas that has the ability to trap the solar radiation into the atmosphere, so the more there is from this gas, the hotter it will be, and Venus has exactly that.
Answer:
Its A
Explanation:
i just done it, and it was a
Considering the impacts and benefits of bioprospecting, which of the following describes the most likely impact?
A. It could be harmful to the ecosystem.
B. It may make additional types of medical treatments available.
C. It is more expensive than creating synthetic compounds.
D. It provides additional variety of known chemical compounds.
I believe it’s A but I’m not sure and I can not fail this.
Considering the impacts and benefits of bioprospecting "It may make additional types of medical treatments available" is most likely to make an impact. Therefore, option B is correct
- Medical Advancements: Bioprospecting involves exploring natural resources to discover new compounds that can be used in medical treatments, potentially leading to the development of novel drugs and therapies.
- Biodiversity and Research: By studying diverse ecosystems, scientists can identify unique biological compounds that synthetic chemistry might not replicate, expanding the range of known medical treatments.
- Pharmaceutical Innovation: Many existing medications, such as antibiotics and anticancer drugs, were originally derived from natural sources. Bioprospecting continues this tradition of finding new, effective treatments.
- Ecosystem Awareness: While there are environmental concerns, responsible bioprospecting can raise awareness about the importance of preserving biodiversity, which is essential for ongoing medical and scientific discoveries.
How do organisms interact with each other and their environment?
In each of these settings, creatures interact and make use of the resources that are at their disposal, including food, shelter, water, air, light, and heat. Individuals within each population of creatures interact in particular ways that are constrained by and can be advantageous to other organisms.
What organisms interact each other and their environment?Organism that relies on eating or ingesting other creatures to gain nutrients and energy. Interactions between all nearby living and non-living entities. Ecological or environmental setting in which a specific species exists.
Positive interactions can boost the populations of both interacting species. Furthermore, the creatures have an impact on their surroundings, changing the resources accessible to ecosystems and the surface of the Earth.
Therefore, interactions between species play a significant role in how life on Earth endures and develops over time.
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Which of these statements is true of offspring from organisms that reproduce asexually?
Offspring are genetically identical to the parent.
Offspring are genetically different from the parent.
Offspring have no features like the parent.
Offspring have some features like the parent.
First, to be able to answer this, you need to know the definition of asexual and sexual organisms. On a quick basis, sexual organisms need to parents, male and female, to make a child. Asexual organisms, on the other hand, only need one parent to have an offspring. Sexual organisms have a mix of both of their parents DNA. Asexual organisms are a replica of the parent.
So, the correct answer is:
Offspring are genetically identical to the parent.
Answer: The answer is "Offspring are genetically identical to the parent."
Explanation: because if you payed attention to the lesson you would understand.
!Hope It Helps!
A few students want to live healthier lifestyles. They decide to use one of the following vegetable oils for cooking.
Based on the information in the table, which type of oil is the worst for a healthy lifestyle?
A. Sunflower oil
B. Olive oil
C. Coconut oil
D. Maize oil
Vegetable oils are used for cooking and are based on unsaturation and saturation. Coconut oil is the worst for a healthy lifestyle. Thus, option C is correct.
What are saturation and unsaturation?Saturation and unsaturation are differentiated based on the presence of the number of the bonds. The saturated bonds have single while the unsaturated ones have double bonds. The presence of the unsaturated bonds in oil makes them good to consume.
Coconut oil has the highest saturation and the least polyunsaturated content which makes it the most unfit to consume. The oils with the most polyunsaturation make them good for consumption.
Therefore, coconut oil is the worst for a healthy lifestyle.
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