Factors such as the decomposition of organisms and the erosion of rock by weather contribute directly to soil formation except volcanic eruptions which produce rocks.
Soil is the topmost layer of the earth on which plant grow.
Soil is important to plants as it provides the plants with the nutrients they need to grow.
Soil can either be formed directly by the breaking down of large rock particles through plant, animals and weather conditions.
The formation ofsoil involves can be due to:
Therefore, all the above factors contribute directly to soil formation except volcanic eruptions which produce rocks.
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Answer: D
Explanation:TOOK THE TEST
Supernova:
In this stage, the star collapses and produces elements heavier than iron.
Planetary nebula:
In this stage, the star emits strong energy pulses that push away the outer layers creating a cloud of ionized gas around the core.
Neutron star:
In this stage, the star has reduced to an extremely dense core.
White dwarf:
In this stage, the star has reduced to a dense core.
Read more about star life cycle
#SPJ3
Answer:
large= supergiant, supernova, then a neutron star
small= giant, planetary nebula, white dwarf
Explanation:
star life cycle changes by these phases
B) thyroid hormone
C) testosterone
D) parathyroid hormone
E) acetylcholine
Answer:
The correct answer will be option-E.
Explanation:
Acetylcholine belongs to a group of chemical messengers which also acts as neurotransmitters in the synaptic transmission of the signals.
The acetylcholine is present in the vesicles in the synaptic knob which when released at the neuromuscular junction cause the contraction of the skeletal muscle along with cardiac and smooth muscle.
The mechanism of action is different in different muscles as the neurotransmitter binds to the nicotinic receptors present on the motor endplate and opens ligand-gated sodium channels.
In smooth and cardiac muscle it binds to the muscarinic receptors and cause the release of calcium ions and potassium ions respectively and cause muscle contraction.
Thus, option-E is the correct answer.
Which of the following is the correct definition of biomass?
the total amount of organic matter from plants and animals in a habitat
all materials that form from the remains of living organisms
hydrocarbons and nitrogen oxides that are released when materials are burned
Answer: the total amount of
Organic matter from plants and animals in a habitat.
Explanation:
Answer:
the total amount of organic matter from plants and animals in a habitat
Explanation:
A
Carbon can form compounds of many sizes and shapes.
B
Animals need carbon in order to breathe.
C
Plants use carbon to absorb water into their roots.
D
Carbon is the most abundant element on Earth.
The correct answer A
This is in part due to carbon's ability to readily form bonds with other atoms, giving flexibility to the form and function that biomolecules can take, such as DNA and RNA, which are essential for the defining characteristics of life
Answer:
D
Explanation:
Our DNA, RNA, proteins, and something else I forget are all made of carbon. As a result, carbon is essentially one of the reasons we exist. Carbon can form connections with other atoms as well. Carbon makes up the majority of organisms.
I'm sorry if this is wrong
A. Hydrolysis
B. Oxidation
C. Exfoliation
D. Frost Wedging
Answer:
Hydrolysis
Explanation: You can see green growing from the rocks and as such, caused by constant water flow and sunlight. it is similar to a fishtank.
Answer: Okazaki fragments are short sequences of DNA nucleotides (approximately 150 to 200 base pairs long in eukaryotes) which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.
Explanation:
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