Why do few plants grow in the tundra?
Answer:
In the Arctic tundra, warmth and sunlight are in short supply, even in the summer. ... Only plants with shallow root systems grow in the Arctic tundra because the permafrost prevents plants from sending their roots down past the active layer of soil. The active layer of soil is free from ice for only 50 to 90 days.
Explanation:
The harsh winter climate and lack of sunlight make it hard for plants to grow.
sunlight and warmth is a necessity for plants to grow and make nutrients to survive.
I hope this helps ^^
When an organism dies, what happens to the nitrogen in its body?
Answer:
Its converted to ammonium ions
Explanation:
Explanation:
Nitrogenous compounds from dead organisms or wastes are converted into ammonia— NH3start text, N, H, end text, start subscript, 3, end subscript—by bacteria, and the ammonia is converted into nitrites and nitrates.
Can someone plz help me on this question plz I beg u
Answer:
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Explanation:
Explain and give an example of Newton’s Third Law
Answer:
Every action (force) in nature there is an equal and opposite reaction.
Example: If object A exerts a force on object B, object B also exerts an equal and opposite force on object A.
What characteristics do you think an animal would have in order to survive in the savanna environment?
Answer:
The type of biome that is made up of scattered grasses and small tress and shrubs is called the savannah. The ecosystem consisting of small community of plants and animal on a large piece of land is is called a biome.
Because the tress are small and scattered this enable the grasses to thrive in the savannah. They are located in the hot and warm climate across the world with the annual rainfall of 50.79 to 127 cm per year. This is estimated t be about 100 '' of rainfall per year .This is fall within certain months, and there may be fire outbreaks when the rain stops or in droughts.
Therefore lack of moisture is the features of the savannah. Plants and animals in this terrestrial biome must develop adaptive features for water conservation to survive with little exposure of the to heat and sunlight to prevent excessive dehydration.
The plants have narrow leaves to reduce the surface area to volume ratio exposed for transpiration and evaporation of moisture
some have underground stem and root for storing starch and water.
Cactus is an example of plant with thick stem to conserve water ,and spikes to prevent been eaten by herbivores
The animals have good stamina to withstand dehydration, and are less active duding the day to conserve body water, and do reduce exposure to the hot and arid environment.
Elephants has wrinkle skin to reduce water loss ,and large ears to dissipate heat.
Explanation:
write the interrelationship between orbanization and
Sustainable development
Answer:
A sustainable urbanization means not only a conversion of the environment without modifications in agricultural land and forest to turn them into cities; it is about radical changes in the shape, economy, demography, and metabolism of urban ecosystems.
genes located inside or outside of the DNA molecule?
PLEASE HELP
Answer:
The DNA that contains your genes is stored in your cells in a structure called the nucleus.
Explanation:
Look at your data. With three foods, Flock
was the most successful over three generations.
With two foods (no fruit), Flock
was the most successful.
Answer: x then y
Explanation:
X then y :)
the answer is down
Explanation:
List the three methods of gathering bacterial samples.
Answer:
DNA sequencing – to identify bacteria, moulds and yeasts. Riboprinter analysis – for bacterial identification and characterisation. Repeat–based polymerase chain reaction – for assessing the similarity of microorganisms. Rapid pathogen confirmation by polymerase chain reaction.
Explanation:
I hope it's help u
What could contribute to a mass extinctions event
Answer:
1/ Climate change
2/ Asteroid impacts
3/ Massive volcanic eruptions
4/ Sun explodes
etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)
Owl
Fox
Snake
Rabbit
Mouse
Frog
Squirrel
Grasshopper
Grass
Seeds
In this food web, which organism is an omnivore?
HELP ASAP ILL GIVE BRAINLIEST
A herd of wild horses are separated by a forest fire. Over many generations their gene pools become so different they can no longer interbreed. Which pattern of evolution is this
a) Speciation
b) Extinction
c) Convergent evolution
d) Coevolution
Which of the following is the EON in which we now live?
Paleozoic
Devonian
Archean
Phanerozoic
Answer:
We live in the Phanerozoic EON
Explanation:
Put these items in order from largest to smallest, make sure to watch the video.
Why do plants have trouble growing in space?
Answer:
The first challenge in growing plants in space is how to get plants to grow without gravity. This runs into difficulties regarding the effects of gravity on root development, providing appropriate types of lighting, and other challenges
Answer:
because, The first challenge in growing plants in space is figuring out how to get them to thrive in the absence of gravity. This presents difficulties in terms of the impact of gravity on root growth, as well as the provision of adequate lighting and other issues.
Explanation:
Gravity has an impact on root formation, but the scientists discovered that their space plants didn't need it to thrive. The space flowers showed common root growth patterns such as "skewing," where roots slant slowly as they branch out, when grown on a nutrient-rich gel in transparent petri plates.
Acid rain contributes to all of the following problems except:
A.) Smog
B.) loss of biodiversity in aquatic ecosystems
C.) Damage to vegetation
D.) Advance chemical weathering
Answer:
A.) Smog
Explanation:
Describe how the balance between the mass of food eaten and the amount of exercise a person does controls body mass
The balance between the mass of food eaten and exercise done controls body mass through the food providing the energy and tissues and exercise developing it.
What is Body mass?This is used to describe if a person is overweight or underweight through the person's weight in kilograms and dividing it by the square of height in meters.
The balance between the mass of food eaten and exercise done controls body mass through the food providing the energy and tissues and exercise developing it.
Read more about Body mass here https://brainly.com/question/10091149
in your own words, what is the definition for Plasmalemma
Answer:
plasmalemma or cell membrane is a biological structure that separates all the cells interior organs from the layer of protection that protects it from the environment (cell wall in plants). this membrane allows osmosis and diffusion to take place within the cell.
A true-breeding yellow pea plant is crossed with a true-breeding green pea
plant, and all the offspring are yellow. What is the most likely genotype of the
offspring assuming a single gene trait?
А, уу
B. YY
C. Yy
Answer:
c maybe
Explanation:
Should biological control methods be used to help eliminate Japanese knotweed? Yes or no?
here is ur answer
yea
hope it is helpful to u
Which of the following is a true statement about reproduction?
A. Sexual reproduction requires two individuals from the same species; two males, two females, or a male and a female. B. Asexual reproduction requires two individuals from the same species—two males, two females, or a male and a female--to produce offspring. C. Sexual reproduction requires a male and a female gamete. D. Asexual reproduction requires a male and a female from the same species.
A . sexual reproduction requires two individuals from the same species, a Male and a female
but sexual reproduction refers to the union of a Male and a female
The shift from the Miocene, which had greater diversity of ape species and fewer monkey species, to a living assemblage with greater diversity of monkey species and fewer ape species may be the result of __________.
Answer:
A differential ability to exploit habitats after global climate change
Explanation:
According to the evolutionary theory proposed by Darwin (1859), it is not the strongest nor the most intelligent who survive, but those that are most adaptable to change. The animals that disappeared during the Miocene, a geological epoch from around 23 million years ago to 5 million years ago, likely failed to adapt to changes in environmental (temperature and vegetation) conditions. During this epoch (Miocene), a more severe climate and coarser vegetation likely contributed to the extinction of several mammal species (e.g., species of apes) and diversification of others (e.g., the divergence between chimpanzee and hominid lineages).
please help!
the question(s) are in the pdf :)
Answer:
1) b) hypotonic
2) a) hypertonic
3) a) water
4) a) B to A
5) c) osmosis
Explanation:
We have two compartments with water (A) and a solution in which the solvent is water and the solute is starch (B). The solutions are separated by a semipermeable membrane, which means that only the water molecules pass through the membrane.
1) In comparison with B, compartment A has a lesser amount of solute so it is hypotonic.
2) In comparison with A, compartment B has more solute (starch) so it is hypertonic.
3) The solvent is water, which dissolves the solute (starch).
4) Only the water molecules will pass through the membrane, and the molecules always move from the compartment with a higher concentration of solute (B) to the compartment with a lesser concentration of solute (A). So, the water moves from B to A.
5) The process in which the molecules of solvent move from a more concentrated solution to a less concentrated solution through a semi-permeable membrane is called osmosis.
Modern humans are the product of evolutionary processes which have occurred over millions of years . True or false?
Sorry for all of this, I’m having trouble with these questions!
Answer:
True to an extent.
Explanation:
Modern humans are the product of evolutionary processes. This is true to some extent.
What is evolution?
Evolution is defined as the theory in biology that various types of plants, animals, and other living things on Earth evolved from other preexisting types and that distinguishable differences are the result of modifications in successive generations.
There are basically four types of evolution.
Divergent evolutionConvergent evolutionParallel evolutionCoevolutionHumans are one of the best example of evolution.
Thus, modern humans are the product of evolutionary processes which have occurred over millions of years. This is true to some extent.
To learn more about evolution, refer to the link below:
https://brainly.com/question/13492988
#SPJ2
How is the environmental problem caused by humans? Describe the specific human activity that causes this problem.
Your response should be about 2-4 sentences long, or it may be written as bullet points
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
sana po makatulong
1
In phylum Nematoda the advancement of the one way digestive tract is found. This means
the food goes in the mouth and waste out in
(1 Point)
Answer:
Anus
Explanation:
Nematodes are roundworms that belong to the phylum NEMATODA. They are characterized by their unsegmented and bilaterally symmetrical bodies. Unlike other worms e.g flatworms, which have a two-way digestive system (food enters and waste comes out via same opening), nematodes have a unique digestive system or alimentary canal.
As rightly stated in this question, nematodes have a one-way or complete digestive tract/system. This means that they take in food through the MOUTH located at one end of their bodies and pass out waste through the ANUS located at the other end.
HIV, the virus that causes AIDS, is a retrovirus. Which of the following sentences BEST defines a retrovirus?
A. A retrovirus converts DNA into RNA,
B. A retrovirus causes lifelong infection.
c. A retrovirus is an old virus that infects new cells.
D. A retrovirus inserts DNA into the host cell's genes.
Answer:
The answer is D a retrovirus inserts DNA into the host cells genes
✎﹏☾✦☁️❣️ Briefly explain the process of photosynthesis .❣️☁️
Answer:
hope this will help u
Explanation:
photosynthesis is the process in which plant make their own food with the help of sunlight,water and carbon dioxide. water and carbon dioxide are raw materials in photosynthesis because they help to prepare their food.During photosynthesis, plants take in carbon dioxide and water from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
Explanation:
PHOTOSYNTHESIS
This is a process in which green plants and other organisms make their own food from simple inorganic substances which are sunlight ,CO2 and chlorophyll.
On the Periodic Table of the Elements, all of the elements within Group 15 have the same number of
valence electrons
energy levels
protons
neutrons
Answer:
the answer would be The first one ir Valence Electrons
The invention of the microscope opened up a new world to scientists. They were now
able to see things they never were able to see with the naked eye. What would a
biologist see if she examined a small piece of a leaf from a plant and a small piece of a
root from the same plant through a microscope?
of cells.
A. Both the leaf and the root would be made
B. The leaf would be made up of cells, but the root would not be made up of cells.
C. The root would be made up of cells, but the leaf would not be made up of cells.
D. Neither the root nor the leaf would be made up of cells because plants are not made up of cells.
A i believe
hope this helps