9th grade biology please help it’s crazy because I’m in 10th grade asking for help on 9th grade work
Answer:
Mitochondria
Explanation:
They generate most of the chemical energy needed to power the cell's biochemical reactions.
Hope this helps! Sry if I get it wrong!
Answer:
free
Explanation:
Prompt:
Please use complete sentences.
What factors contributed to the shift from hunting and gathering to agriculture?
This is a biotechnology question but there isn't a subject choice for it.
Answer:
One of the main factors was a lack of wild animals suitable for hunting and a lack of plants suitable for gathering.
Explanation:
This in turn was due to either climate change or to animal population declines because of unsustainable volumes of hunting and gathering
¿Cuál es el papel de la gravitación en el movimiento de los planetas y la caída de los cuerpos en la superficie terrestre?
Answer: c
Explanation: trust
Question 6 of 33
Which of these situations could produce a population crash?
A. Increase in the availability of food
O B. Volcanic eruption
O C. Low death rate
O D. High birthrate
SUBMIT
Someone plz help me :(
Answer:
S. 32 f alsksjhdjduehoeidgdndkdhd
6. The Edwards Plateau in west-central Texas is home to a diverse group of bats, reptiles,
and birds. How does the biodiversity of the Edwards Plateau affect the sustainability of local
ecosystems?
A. The variety of interactions among the different species helps the ecosystems remain
sustainable.
B. The variety of interactions among the different species prevents the ecosystems from being
sustainable.
C. The uniformity of interactions among the different species prevents the ecosystems from
being sustainable.
D. The uniformity of interactions among the different species helps the ecosystems remain
sustainable.
Answer:
A.
Explanation:
The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem. A great variety of genes and species means that the ecosystem is better able to carry out natural processes in the face of external stress. Thus, the ecosystem is more sustainable.
Hope this helps!! Brainliest?? Anyways have a great day!! :))
4. What is a Biotic factor that can contribute to an ecosystem?
02
O H20
Fish
CO2
Answer:
fish
Explanation:
Biotic describes a living component of an ecosystem
What is a concentration of mineral fragments at the bottom of a streambed called? Choose the correct answer.
O nodule
O placer deposit
O native element
O hydrothermal solution
Answer:
B. Placer deposit
Explanation:
Quizlet called "7-1 Science Mineral Resources" with answers
are all fungi eukariotic?
Guys pls help me!!!!!!!!!
the wing of a penguin is ________ the arm of a human.
The wing of a penguin is homologous to the arm of a human.
Homologous organs refer to organs of different organisms that are structurally similar but functionally different.
The wing of a penguin and the arm of a human are structurally similar because they are both built on the same pentadactyl or five-digit plan.
Despite the structural similarity, the wing of a penguin and the arm of a human are adapted for different functions. While the wings of a penguin are used to propel the animal in water by flapping them together, the arms of a human are adapted for several functions, including swimming when necessary.
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can anyone help please，question on the pictute
Answer:
A. In water it is stabilizing the amount of water coming in and out of the cell.
In the sugar solution, it is filled with the sugar solution.
B. Transpiration
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In animal cells, what are the holes between directly connected cells used for intercellular communication called?
Answer:
However, they do have specialized junctions called plasmodesmata (singular, plasmodesma), places where a hole is punched in the cell wall to allow direct cytoplasmic exchange between two cells.
Explanation:
An ecosystem that can experience a disturbance without being fundamentally damaged is said to have __________________.
An ecosystem that can experience a disturbance without being fundamentally damaged is said to have: Inertia.
An ecosystem can be defined as a biological community or space that comprises all living organisms (biotic factors) and the physical environment (abiotic factors) with which they interact.
Basically, an ecosystem is responsible for the provision of the following essential services that are very vital and important for the sustenance of life in all living organisms;
Plant pollination.Water purification.Nutrient cycling.Additionally, an ecosystem is said to have an inertia if it experiences a disturbance or factor of changes without it being damaged significantly or fundamentally.
For example, the development of shrub forests during the Medieval Warm Period is an inertia of the ecosystem.
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the presence of ___________ chemically distinguishes protein from carbohydrate and fat.
Answer:
Nitrogen
Explanation:
The presence of Nitrogen chemically distinguishes protein from carbohydrate and fat.
What is the name of a species that is the first species to colonize an
area?
Select one:
a. Frontier species
b. Pioneer species
c. Explorer species
d. Pilgrim species
Answer:The answer is b. Pioneer species
Step-by-step explanation; The first species to colonize an area after a major disturbance are called pioneer species; they help to form the new environment. Secondary succession occurs after a disturbance such as a forest fire, where there is still some organic matter to allow new plants to grow.
What makes a successful Aquarium
Answer:
Im guessing animal control feeding the animals good glass and thickness also a strong bridge last is a passive shark
Explanation:
HELP PLS!
What are the nitrogenous bases in RNA? Which pair together?
Answer:
he four bases that make up this code are adenine (A), thymine (T), guanine (G) and cytosine (C). Bases pair off together in a double helix structure, these pairs being A and T, and C and G. RNA doesn't contain thymine bases, replacing them with uracil bases (U), which pair to [tex] {adenine}^{1} [/tex].
How do genes control characteristics? Please help I’ve got a test tomorrow. Thank you!
Answer:
the proteins in the gene
Explanation:
Answer:
Genes are sections of DNA that are carried on chromosomes and determine specific human characteristics such as eye color and height.the proteins that genes carry are the ones responsible for controlling these characteristics or traits.
I hope this helps
Which factor contributes to the formation of tides that turn turbines to create energy in the ocean?
wind speed
water density
Earth’s rotation
water temperature
The factor that contributes to the formation of tides that turn turbines to create energy in the ocean is Earth's rotation.
What is Tidal energy?Tidal energy is a type of renewable energy that is generated by the movement of water due to the gravitational forces of the moon and the sun.
As the Earth rotates, the gravitational forces of the moon and the sun cause the water in the ocean to move, creating tides that rise and fall twice a day.
This movement of water can be harnessed by turbines, which are placed in areas of high tidal flow. As the tides move in and out, the turbines spin, generating electricity that can be used to power homes and businesses.
While factors such as wind speed, water density, and water temperature can all affect the movement of water in the ocean, they are not the primary factors that contribute to the formation of tides.
The tides are primarily driven by the gravitational forces of the moon and the sun, which cause the water to move in a predictable pattern that can be harnessed for energy generation.
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Describe what part of the virus affects a body system but not all the body systems
Answer:
Explanation:
no
how long does it take to recover from appendix surgery
two to four weeks, that's what l was told by my teacher
Nitrogen and phosphorus are referred to as macronutrients because ________. A. they are larger than other nutrients needed by plants B. they are needed by large organisms C. they are required in large amounts for organisms to survive D. they are needed to manufacture large biomolecules E. their cycles have larger reservoirs than those of micronutrients
Macronutrients are all substances that provide energy to the metabolism for optimal functioning, nitrogen and phosphorus are required in large amounts for organisms to survive.
What are macronutrients?It refers to those elements that provide energy to the body, these are proteins, carbohydrates and lipids.
Nitrogen and phosphorus, meanwhile, allow the development of metabolic processes, prevent infections and contribute to growth.
Therefore, we can conclude that the body requires a greater amount of macronutrients than micronutrients, nitrogen and phosphorus are required in large amounts for organisms to survive.
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approximately how many nucleosomes are required to organize this region of dna into the 10nm fiber structure?
Answer:
Answer is 512 nucleosomes.
Explanation:
DNA is the genetic material that is compressed and stored in the nucleus of the cell. Approximately 512 nucleosomes would be required to organize 92,672 base pairs long region.
What are nucleosomes?Nucleosomes are the packaging units of the genetic material that comprises the DNA segments wrapped along with the histone proteins in a compacted manner. This allows the genetic material to be condensed into smaller volumes.
Given,
Genome size = 92,672 base pairs
Linker DNA = 35 bp
The total number of base pairs = number of base pairs in nucleosome core + linker DNA
= 146 + 35
= 181
The number of nucleosomes can be calculated as:
Nucleosomes = Genome size ÷ total number of base pair
= 92,672 ÷ 181
= 512
Therefore, there are 512 nucleosomes are present in the Drosophila.
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Your question is incomplete, but most probably your full question was, A large gene-containing region of DNA in the fruit fly Drosophila melanogaster is 92,672 base pairs long. The length of linker DNA in Drosophila is 35 base pairs. Approximately how many nucleosomes are required to organize this region of DNA into the 10nm fiber structure?
How do the
terms polymer and
monomer apply to the structure of
protein molecules?
Which term best describe the ability of a living system to be restored through secondary ecological succession after a severe disturbance?
resilience
constancy
diversity
inertia
persistence
Answer:
resilience
Explanation:
Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. i.e. Grassland can burn easily but recover quickly.
Answer:
Resilience: the ability to withstand adversity, destruction and to bounce back, to recover.
Explanation:
B. What structures are missing from the root hair cells?
Answer:
The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis, they do not contain chloroplasts.
Explanation:
Mitochondria are missing from root hair cells.
Root hair cells are specialized plant cells found in the roots of plants. Their primary function is to absorb water and minerals from the soil. To achieve efficient absorption, root hair cells have evolved specific structural adaptations.
Root hair cells are elongated and have a large surface area due to their elongated projections called root hairs. This increased surface area enhances their ability to come into contact with the soil, maximizing water and nutrient absorption. However, due to their focus on absorption and their short lifespan, root hair cells exhibit some structural simplifications, such as the absence of certain organelles.
One notable organelle missing from root hair cells is the mitochondria. Mitochondria are the "powerhouses" of cells, responsible for generating energy in the form of ATP through cellular respiration. Since root hair cells are mainly involved in absorption rather than energy production, they have a reduced need for extensive energy generation. As a result, they don't require as many mitochondria as other cells that are highly metabolically active.
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Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed
a tissue with a firm gel matrix and cells inside lacunae is
Answer:
I believe you are referring to either cartilage or chondrocytes
Explanation:
Chondrocytes are cells that are found within the lacunae.
Cartilage is the connective tissue that chondrocytes make up.
what step does every scientific experiment begin with?
Answer:
make objective observations.
Explanation:
