Answers
The second answer is They move because of convection currents in the mantle
Related Questions
Which statement describes a forest ecosystem that has not experienced any natural disasters in the past 100 years?
A.
The types of plants that grow in the forest are changing from year to year.
B.
Faster growing conifers are replacing slower growing deciduous trees.
C.
The types of plants and animals that live in the forest are reasonably stable.
D.
The number of types of animals that live in the forest is rapidly increasing.
Answers
Answer:
C) The types of plants and animals that live in the forest are reasonably stable.
The statement that describes a forest ecosystem that has not experienced any natural disasters in the past 100 years is, "The types of plants and animals that live in the forest are reasonably stable," hence option C is correct.
What is a forest ecosystem?Along with nonliving (abiotic) elements like soil, water, air, and landforms, forests also contain living (biotic) elements like trees, animals, plants, and other life things. A forest ecosystem is made up of all of these elements.
The numerous plant and animal species residing in a forest ecosystem are generally stable if it has not recently been subjected to any disturbances or natural disasters.
Therefore, plants and animals that live in the forest are reasonably stable, so this ecosystem not experienced any natural disasters.
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Q.2. Describe the different phases of meiotic prophase – I. Mention the chromosomal events during each stage.
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Prophase-I occurs over a long duration and involves several complicated changes in meiotic cell division. It is important because genetic recombineiion and variation in sexually reproducing organism occurs due to the events of this phase.
EXPLANATION:❈ Leptotene —
➥ The chromatin network opens out and threads become clear.
➥ The chromosomes are thin, slender and long.
➥ Chromosome number is diploid.
❈ Zygotene —
➥ Corresponding chromosomes become intimately associated.
➥ The process of pairing is known as synapse. It is so exact that pairing is not merely between corresponding chromosomes but between corresponding individual units.
➥ The chromosomes become shorter and thicker.
❈ Pachytene or Pachynema —
➥ The synaptic chromosomes become very intimately associated.
➥ The pair of chromosomes becomes short and thick.
➥ Crossing over occurs at this stage. Chiasmata are clearly seen.
❈ Diplotene —
➥ Homologous chromosomes start separating from one another.
➥ Chiasmata tend to slip out of the chromosomes. This is known as terminalisation of chiasmata.
➥ Chromosomes start separating out but the separation is not complete.
➥ Nuclear membrane and nucleolus start disappearing.
❈ Diakinesis —
➥ The bivalents condense further and get randomly distributed.
➥ The separation of paired chromosomes is almost complete.
➥ Terminalisation of chiasmata is almost complete.
➥ Nuclear membrane and nucleolus disappear.
Both naturally acquired and artificially acquired immunity are effective ways to gain immunity. Which method is safest?
Answers
Answer:
naturally acquired immunity are effective ways to gain immunity.
Explanation:
there is a saying that eat your food like a medicine otherwise you will neex to ead your medicine as food.so food whuch we obtain from nature have many nutritious values than artificially acquired medicine
What is the vent in earths surface through which magma and gases are expelled
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Answer:
A volcano
Explanation:
Is a vent or fissure in the Earth's surface through which molten rock and gases are expelled. Molten rock is called magma.
Ok, do we live in or on earth?
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Answer:
On, we live on the surface of Earth.
If we lived in it, we'd be near the core, or literally inside the earth's many layers.
Hope that helps! :)
-Aphrodite
Explanation:
Which of the following is TRUE about sedimentary rock?
A. does not contain layers
B. May contain fossils
C. the hardest of the rock types
Answers
Answer:
B
Explanation:
Sedimentary rock is layered. That makes A wrong, but it leads to another observation.
Things can die and think sink to the bottom of an ocean or sea or river or lake bed which over time changes. So you might find fossils which is the answer.
C is incorrect because there are much harder substances than sedimentary rock.
Answer:
B.May contain fossil.
Explanation:
These rocks are formed with the deposition of materials broken down from pre-existing rocks, followed by compaction and cementation
PLEASE HELP!!!! You discover a new protist species. It has chloro-
plasts and vacuoles and moves using a flagellum.
How would you classify the way that it gets energy?
Is it an autotroph, heterotroph, or both? Explain
your answer.
Answers
Answer:
Autotroph
Explanation:
An autotrophic organism is any organism that is capable of synthesizing its own food either by using sunlight (photosynthesis) as an energy source or chemicals (chemosynthesis). An organism capable of photosynthesis must possess CHLOROPLAST (CHLOROPHYLL), which is responsible for capturing sunlight in the cell and also harbors the photosynthetic process.
According to this question, a newly discovered protist is said to have chloroplasts and vacuoles and moves using a flagellum. Due to the fact that this protist possess CHLOROPLAST organelle, it means it can perform photosynthesis, which is one of the ways an autotrophic organism synthesizes it's food. Hence, the organism is AUTOTROPHIC.
Biologically speaking what is the only purpose of reproduction
Answers
Answer: To prevent extinction
Explanation: This is to say the main purpose of reproduction is for the continuation of species.
Why cells divide and what happens to genetic material during cell division.
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Eukaryotes contain _______________________
A. membrane-bound organelles.
B. toxins.
C. cell lipozyroids
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Answer:
A. membrane-bound organelles.
Explanation:
Answer:
A is your answer
Explanation:
Which two viral characteristics provide evidence to support the
argument that viruses are more similar to living components than to
nonliving components of an ecosystem?
Answers
Living Characteristics of Viruses Nonliving Characteristics of Viruses They reproduce at a fantastic rate but only in living host cells. They can mutate. They are acellular that is they contain no cytoplasm or cellular organelles. They carry out no metabolism on their own and must replicate using the host cell's metabolic machinery.
u guys su.ck ive asked this like 10 times
Answers
Pls help question is in picture
Answers
Answer:
im pretty sure its d
Explanation:
jsbsjhs
how many types of enzyme does pancreas secrete and name them
Answers
Pancreatic Lipase
Protease (trypsin and chymotrpsin)
So 3 I believe
━━━━━━━━━━━━━━━━━━━━━━━
CORRECT QUESTION -How many types of enzyme does pancreas secrete and name them!
CORRECT SOLUTION -The pancreas consist of exocrine glands that produces enzymes making digestion playing an important role . The enzymes made by the pancreas include :
Pancreatic proteases (such as trypsin and chymotrypsin) - which help to digest proteins .Pancreatic amylase - which helps to digest sugars (carbohydrates) .Pancreatic lipase - which helps to digest fat .━━━━━━━━━━━━━━━━━━━━━━━
why are vitamins important to enzymes and what this relationship is called?
Answers
The activity of some enzymes requires vitamins. This is because vitamin derivatives contribute to the biochemical mechanisms of these enzymes. These vitamin derivatives belong to a class of molecules known as cofactors, which are organic molecules (called coenzymes) or metallic ions, that assist in the catalytic activity of an enzyme.
Which statement is NOT part of the concept of natural selection?
Individuals that possess the most favorable variations will have the best chance of reproducing.
Genes of an individual adapt to the changing environment.
Variations occur among the individuals in a population.
More individuals are produced than can survive creating competition amongst the members of a group.
Answers
Answer:
i think its the first one sorry if im wrong but that one makes the most sense
Explanation:
When you are writing scientific names, you underline the entire scientific name, capitalize the first word, and write the second word using lowercase. true or false
Explain.
Answers
Explanation: When writing a scientific name you capitalize the genus of the name and the species and subspecies should be lower case. Then scientific name should always be italicized. Lastly, you do not need to underline the entire scientific name.
Why do plants lose their leaves during winter?
Answers
Answer:
Plants loose their leaves in winter due to following reasons: The plants of these types are called deciduous plants. The leaves of these plants contain a chemical called Chlorophyll. Chlorophyll in the presence of sunlight make food for plant and the process is called photosynthesis.
This is the Answer for your question :3
I hope you are having a great day :3
PLEASE HELP ASAP
Which of the following best explains why animals that inhabit warmer regions tend to have smaller body sizes?
A higher surface-area-to-volume ratio facilitates heat loss.
Animals in warmer climates need to move more quickly to catch prey.
More species inhabit warm climates, and smaller size enables a greater number to live in the same ecosystem.
Smaller body size enables faster reproduction and repopulation to maintain a niche in overpopulated warmer climates.
Answers
Answer:
I believe it may be a higher surface area to volume ratio facilitates heat loss
Explanation:
Out of the options it makes the most sense being that larger animals keep heat in...
what is called bio pesticides ?
Answers
Answer:
hope it helps uh ❤❤ and plzz mark me as brainlist❤❤Why do you think it would be important to know that both sides of the heart receive blood at the same time? Giving Brainliest
Answers
Explanation:
The right side of your heart receives blood from the body and pumps it to the lungs. The left side of the heart does the exact opposite: It receives blood from the lungs and pumps it out to the body. If your body didn't do it simultaneously, then blood would overflow your lungs.
Suppose one of their children (Ww) marries someone who is also heterozygous (Ww). What kind of hairline will their children have?(
Answers
Answer:
3 + 5 = 8
Explanation:
When sea ice melts, the liquid sinks and begins to move along the ocean floor. What is formed by this process?
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Answer:
`
Explanation:
all plant nutrients sources
Answers
Answer:
Plants require 17 essential elements for growth: carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), potassium (K), sulfur (S), cal- cium (Ca), magnesium (Mg), boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), nickel (Ni), and zinc (Zn).
HELP!!!! What are two ways information is sent to control body conditions?
Answers
sifat sifat fizik air
Answers
Answer:
Explanation:
cair
padat
gas
humans developed antibiotics to fight bacterial infections however some antibiotics are no longer effective in killing the bacteria than once killed how does the theory of evolution explain this antibiotic mutated the bacteria which allowed resistance develop
Answers
Answer:
Changes in genetic makeup occurs with the passage of time.
Explanation:
Antibiotic cause mutation in the bacteria which allowed to develop resistance in the bacteria. This resistance and change in the genetic makeup obeys the theory of evolution which states that all species are changed gradually with the passage of time. The genetic makeup of bacteria also changes with the passage of time and attain resistance due to regular application of antibiotics so due to this resistance, the antibiotic can't work on the bacteria.
Explain how an increase in atmospheric CO2 may lead to a rise in sea level?
Answers
What evidence is there that the 15 species of finch all evolved from one common ancestor?
Answers
All of them evolved from one rooted species, which colonized the islands only a few million years ago. This process, whereby species evolve rapidly to exploit empty eco-space, is known as adaptive radiation.
What is evidence of common ancestry and how do they explain evolution?Homologous structures provide proof for a common origin, while analogous structures show that similar selective pressures can produce similar adaptations. Alikenesses and differences among biological molecules can be used to determine species' relatedness.
Thus, adaptive radiation is one of the reasons.
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A student makes a model of an atom, as shown. Where should the student place a proton in the model?
A. Inside the nucleus
B. On either of the two orbits
C. Between the two orbits
D. Between the first orbit and the nucleus