Answer:
How far down the layer is
Explanation:
yeah
What insect/animal improves the fertility of soil by breaking down once-living matter and aerating soil?
Answer:
please give me brainlist and follow
Explanation:
Earthworms pass both soil and organic matter through their guts, in the process aerating the soil, breaking up the litter of organic material on its surface, and moving material vertically from the surface to the subsoil.
All the animals can be classified into three groups ____,_____,______on the basis of
their food habits.
Answer:
Herbivores, Carnivores, Omnivores
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All the animals can be classified into three groups omnivorous, carnivorous and herbivores on the basis of their food habits.
What is deposition?
1.The process by which water ice, wind or gravity moves fragments of rock and soil.
2.The process by which water, ice, wind or gravity deposit rock sediments and soil in a new place.
3.The breaking down of Earth's crust into smaller and smaller pieces.
The genetic code of a strand of DNA is determined by a specific sequence of
A. sugar molecules.
B. nucleotides.
C. covalent bonds.
D. ATP molecules.
Answer:
B
Explanation:
the answer is nucleotides
Change in color and body structure help the organisms to adapt according to their environment explain with an example
two cause and use of modification of root
Answer:Modified roots may perform functions such as support, respiration, and storage. ... Conical, fusiform, napiform are tap root modification for the purpose of storage. Prop root ,stilt root are produced not from the radicle assimilatory roots are aerial roots that are photosynthetic.
Explanation:hope this helps.
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Changes in _____ result in the formation of metamorphic rocks.
a. Weathering
b. Sedimentation
c. BothAandB
d. Temperature and Pressure
Answer:
During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Metamorphism can be caused by burial, tectonic stress, heating by magma, or alteration by fluids.
Explanation:
Answer:
thanks
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Explanation:
During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift
Answer:
D. I'm pretty sure at least
for what resons do cells divide
Answer:
Cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow.
Explanation:
Hope this helped!!
State one way the immune system reacts when a virus enters the body.
Guys pls help me!!!
Answer:
The immune system recognizes and destroys, or tries to destroy, substances that contain antigens. Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens
WILL GIVE BRAINLIST!!! How do floods droughts and fires change the characteristics of an ecosystem?
Answer:
heat waves have reached record intensity in some regions . by daily precipitation characteristics alone; the relevant mechanisms are more Forest management and fire suppression practices can also alter this and alter the carbon cycle if ecosystems change from higher to lower carbon
Explanation:
The process of obtaining food by __________________ is called phagocytosis.
What systems play a part in getting rid of waste materials from the body? What waste does each system eliminate?
Answer:
The cells of the body produce waste materials. The body needs to get rid of these waste materials because they can make us sick. Getting rid of this waste keeps us healthy.
......................................................peridot
Answer:
It's C. They are mostly made up of hydrogen and helium
7. Cells will generally divide when? *
Answer:
cells will generally divide when reproduction occurs
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(2 pts) Describe the process in which an ecosystem moves from a pioneer species to a climax community.
Answer:
As an ecological community develops, it goes through a series of stages called ecological succession. The enduring community, in which specific and environmental changes are minimized, is called the climax community.
Explanation:
Succession is a process that generally begins after a significant alteration or extinction of an existing community. During succession, a community begins from a point where pioneer species colonize a new area. Pioneer species actively work to provide nutrients to soils and thus allow life to begin to form in them.During this time, there is widespread growth of these fast-growing species. If this new development is in an area that has never been settled before, this is called primary succession. If colonization occurs where an area has been so severely disturbed that the original community no longer exists, this is called secondary succession. Primary succession begins with the establishment of pioneer species such as lichens and mosses. These change the physico-chemical characteristics of the substrate. Later, small plants such as grasses, shrubs and then trees arrive, until culminating in a climax community dominated by certain species. The equilibrium that characterizes the climax community can be altered by climatic, ecological and evolutionary factors.
5. The theory of common descent states that all modern organisms
*
A. Can change in response to environmental change
B. Are descended from a single ancestral species
C. Can be arranged in a linear order from "Least Evolved" to “Most Evolved”
D. Have not changed over time
Answer:
B
Explanation:
All living beings are in fact descendants of a unique ancestor commonly referred to as the last universal common ancestor (LUCA) of all life on Earth, according to modern evolutionary biology. Common descent is an effect of speciation, in which multiple species derive from a single ancestral population.
Which greenhouse gas has contributed the least to the growth in the annual greenhouse gas index?
a. CFCs
b. Methane
c.Nitrous Oxide
d. Carbon dioxide
Answer:
the answer is methane
Explanation:
I took the test
Compare the results of the Unknown Explain the identity of the Unknown using your experimental results in the exercises to help explain and support your answer.
Question
The question is incomplete. The complete question is as follows:
Review the Data Tables in Exercises 1 and 2. Compare the results of the Unknown for all tests to the results for the various known samples to determine the identity of the Unknown. Explain the identity of the Unknown using your experiment results in the exercises to help explain and support your answer.
Answer:
According to the results, the unknown is a protein.
Explanation:
According to the results, the unknown is a protein, not a carbohydrate or lipid. When Biuret's reagent test is performed, it tested positive while the tests for sugar, starch, and lipid were negative proving that the unknown substance is the protien.
Which statement is true regarding type 1 diabetes?
1. Type 1 diabetics are considered insulin-dependent diabetics.
2. Type I diabetics acquire the condition later in life.
3. Obesity is a cause of Type 1 diabetes.
4. Type I diabetics can control their diabetes with diet and exercise.
Answer:
option 1- type 1 are considered insulin dependent
Explanation:
the other options all describe type 2
Answer:
1. Type 1 diabetics are considered insulin-dependent diabetics.
Explanation:
Type 2 diabetes acquires later in life not Type 1.
Type 1 diabetes is thought to be caused by an autoimmune reaction (the body attacks itself by mistake) that destroys the cells in the pancreas that make insulin, called beta cells. This process can go on for months or years before any symptoms appear
Type 2 control with diet and exersize while as Type 1 is controlled by insulin.
PLEASE HELP!! DUE SOON!!!
The Sun is classified as which type of star?
A. black hole
B. main sequence
C. neutron
D. supergiant
Answer:
Our Sun is categorized as a G-type yellow-dwarf main sequence star.
What do red blood cells carry?
Answer:
red blood cell carry oxygen
hope it helps.
Answer:
Red blood cells carries oxygen .
hope it is helpful to you
Naa is reading an article about objects in the solar system. She finds out the Ganymede, ne
of Jupiter's moons, is bigger than the planet Mercury. Which statement explains why
Ganymede is NOT classified as a planet?
(0.5 Points)
It orbits Jupiter and not the Sun.
It is not as close to the Sun as Mercury.
It is not shaped like the rest of the planets.
It is held in its orvbit by gravity.
Answer:
I think number 2
What does "dismiss" mean in these sentence
Answer:
to send away
Explanation:
hope this helps
Answer:
to send away
Explanation:
i got that correct.
A single nerve is an example of which level of organization in a body? plz help
Answer:
organ system
Explanation:
I hope this is right please tell me if im wrong ;)
What is the largest object known to man and why?
Answer:
1234567890
Explanation:
because I said so 12345678901234567890
explain how thyroxine production is an example of homeostasis
Explanation:
The production and release of thyroid hormones, thyroxine and triiodothyronine, is controlled by a feedback loop system that involves the hypothalamus in the brain and the pituitary and thyroid glands. ... This system allows the body to maintain a constant level of thyroid hormones in the body.
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Explain the flaw in Bill's rationale in the following scenario:
Bill, a horse breeder, believes that studying heritability is a waste of time. He thinks that kind of technical study should be left to scientists, not farmers.
He could use this knowledge to help breed his horses to the best that they can be.
What is heritability ?The degree to which genetic variations among persons may adequately explain the variations in their attributes is known as heritability. Characteristics like height, eye color, and IQ are examples of traits, as are illnesses like schizophrenia and autism spectrum disorder.
Heritability, which is denoted by the statistic h2 in science, describes the proportion of a trait's variation that can be attributable to genetic variation.
An estimation of a trait's heritability is particular to one population in a particular setting, and it might alter over time as conditions change.
Estimates of heritability range from 0 to 1. A heritability close to zero means that environmental factors, with very little influence from genetics, account for almost all of the variation in a trait among individuals.
Therefore, He could use this knowledge to help breed his horses to the best that they can be.
To learn more about heritability, refer to the link:
https://brainly.com/question/21422122
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The purpose of transcription is to create
A. a sequence of RNA bases that complements a sequence of DNA bases.
B. a sequence of DNA bases that duplicates a sequence of RNA bases.
С. a sequence of RNA bases that breaks down a sequence of DNA bases.
D. a sequence of DNA bases that deletes a sequence of RNA bases.
Answer:
B. a sequence of DNA bases that duplicates a sequence of RNA bases.
Explanation:
Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
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Answer: B.
Explanation:
Arrows point to penguin, fish, krill, and other birds.