Which scientist proved the existence of a virus as a new type of pathogen?
Answer:
Dmitri Ivanovsky
Explanation:
Dmitri Ivanovsky utilized one of these filters in 1892 to demonstrate that despite being filtered, sap from a diseased tobacco plant remained infectious to healthy tobacco plants. The filtered, infectious substance was dubbed a "virus" by Martinus Beijerinck, and this discovery is regarded as the origin of virology.
PLLSSS-100 POINTS-PLSSSS
How and why do water and carbon dioxide function as raw materials during photosynthesis?
Review how sunlight provides the energy to carry out reactions to release oxygen and produce energy-rich carbohydrates.
Answer:
plants take in carbon dioxide (CO2) and water (H2O) from the air and soil.
Explanation:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) 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.
(if this isnt what your asking just let me know and i do it again)
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 dioxideand 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.
sunlight, water and carbon dioxide helps to produce energy storing carbohydrates.The energy from sunlight drives the reaction of carbon dioxide and water molecules to produce sugar and oxygen, as seen in the chemical equation for photosynthesis.
carbon dioxide + water➡️sugar + oxygen
6co2 + 6 h2o➡️c6h12o6 +6o2
How do you know there’s is DNA in fruit
Answer:
It is a plant
Explanation:
took the test
What prevents the simultaneous passage of sperm and urine through the male urethra?.
Answer:
internal urethral sphincter.
Explanation:
Which of these does NOT occur during meiosis?
production of new gene combinations
production of identical gametes
crossing-over of homologous chromosomes
reduction of chromosome number by one-half
Natural selection
A.
results in changes to a species immediately.
B.
results in no changes to a species.
C.
results in changes to a species over a long period of time.
D.
results in a species being wiped out completely.
Answer:
C.
results in changes to a species over a long period of time.
Explanation:
A population of squirrels lived together in a forest. An event occurred that caused the population to diverge into two different species over a long period of time. Which of the following is most likely the event that occurred?
Answer: A natural disaster occurred that separated squirrels.
Hence, this would be the answer.
Answer:
B. A natural disaster that separated squirrels
Explanation:
I can confirm this is correct because I just did the test.
Which statements are true about observations? (Select all that apply.)
A. Observations are only made in a laboratory setting.
B. They are statements made based on something seen, noticed, or measured.
C. We naturally make observations about the world around us.
D. Lab experiments rely on observations, but field investigations do not.
Answer:
b and c
Explanation:
Answer:
b and c
Explanation:
Propose an action plan you would implement in your backyard or in your
neighborhood community to reduce a human impact on a local aquatic ecosystem. In
your action plan proposal, be sure to address the
questions below. Provide sufficient evidence from previous lessons and scientific
reasoning to answer the questions and support your proposed action plan.
1. Where and how it would be implemented? (2 pts.)
2 Why is it a good course of action in reducing a human impact on aquatic ecosystems from
your backyard or community? (2 pts.)
3. What is one way you would monitor your action plan to ensure that it is working to
reduce human impacts into the future? (2 pts.)
There are many ways by which we can reduce human impact in the local aquatic ecosystem.
What do you mean by aquatic ecosystem?Aquatic ecosystems include oceans, lakes, rivers, streams, estuaries, and wetlands. Within these aquatic ecosystems are living things that depend on the water for survival, such as fish, plants, and microorganisms.
It will be implemented on both backyard and aquatic ecosystem. It is good course of action so that organism of aquatic ecosystem have not suffered from the human activity like cleaniness of water, no mixing of chemicals and fishing.Constant checking of quality and population of aquatic organism will ensure that human impact get reduce on aquatic ecosystem.
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State four ways in which the mammalian skin responds to low temperature in the environment
When you're out in cold climate, your skin starts shivering so the blood vessels will acquire and keep you as warm as possible.
But if there's a heat wave, you'll sweat to increase the blood flow to the veins, which in turn increases perspiring. This process chills you off as the water disappears from your skin.
How does the skin respond to low temperature?If the skin temperature drops below 37°C, a variety of rejoinders are started in the skin to have the warmth within the body and to increase heat display . These include vasoconstriction, end of sweating, and erection of follicles to increase insulation.
Thus, this could be the answer.
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Which of these physical structures in animals is similar to this structure in plants?
A) Exoskeleton
B) Ovaries
C) Scales
D) Testes
Answer:
B) Ovaries
These parts of the said flower or plant relate to human ovaries by the spread of seedlings or for ovaries, human eggs.
Answer:
Pistil: Ovaries
Explanation:
Pistil another name for female Ovaries
the pistil is the female reproductive organ of a flowering plant. After the pistil is pollinated by the stamen, it produces fruit and seeds.
When alleles segregate randomly during meiosis it is called:.
Why were different organisms
found on each island of the
Galapagos?
A. The islands were far apart geographically
from one another.
B. The climate of the islands varied.
C. Organisms were the same from one island to
the next.
Answer:
Its B
Explanation:
The Climate Of The Islands Varied
Select the correct answer from each drop-down menu. a species was added into a particular ecosystem to control the population of a prey species. this method of introducing a new species is called . the population of the added species increased, leading to an imbalance in the ecosystem. this increase happened because .
If a species was added into a particular ecosystem to control the population of a prey species, then this method is called biological augmentation.
What is biological augmentation?Biological augmentation is a process where a newly introduced species increase the number of individuals of another species.
In this case, the population of the added species increased, leading to the competition for resources increased in the ecosystem.In conclusion, If a species was added into a particular ecosystem to control the population of a prey species, then this method of introducing a new species is called biological augmentation.
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describe enzyme in washing
Answer:
Enzyme washing or "bio stoning" is a textile manufacturing technique in which cellulase enzymes are applied to denim. As with traditional stone washing, the intended effect is a faded appearance and softer feel. Because the technique relies on biotechnology, enzyme washing is considered an example of textile bio-processing.
An area is described as having mild temperatures in the summer and being cool and rainy in the winter. on a day in may, the area experienced snow. which best describes this day in terms of weather and climate?
select one:
a. the weather was different from the normal climate for the area.
b. the climate was different from the normal weather for the area.
c. weather and climate were different from the normal properties for the area.
d. climate and weather were changing into a new set of normal properties for the area.
Answer:
the answer is a .IAM sure
which stem adaptation is most helpful in protecting a plant from disease
Answer:
The outer layer of a plant—analogous to our skin and also called the epidermis—is the first defense to keeping pathogens out.
Explanation:
The epidermis itself is shielded by additional layers on certain plant parts: bark on a tree, a waxy cuticle on leaves. Plants also produce chemicals that are toxic to pathogens or to insects.
What is the connection between genetics and natural selection?.
Which statement best describes an interaction with the geosphere?
Glaciers shape a mountain valley.
Rain increases acidity of a lake.
Carbon dioxide dissolves in oceans.
Animals release carbon dioxide into the air.
chlorophyll is necessary for photo
synthesis
Answer:
Yes
Explanation:
Im doin it rn in edge
2. (b) Why is it important to maintain genetic diversity in populations?
Genetic diversity encourages the health of a species and provides material resources such as plants. The loss of genetic diversity leads to reduced options for mates which means even more loss of a species and the species becomes more susceptible to disease. These are very few results that occur with the loss of genetic diversity.
Lightly place your fingers on your wrist or neck and try to find your pulse. Count your pulse for 10 seconds and then multiply that number by 6 to get your heart rate for a minute. What activities do you think will increase and decrease your heart rate?
Answer:
Stress can send hormones like adrenaline and cortisol racing through your blood, which can raise your heart rate. Things like meditation and yoga can help lower stress levels. Over the long term, they can lower your resting heart rate, too
Explanation:
Stress can send hormones like adrenaline and cortisol racing through your blood, which can raise your heart rate. Things like meditation and yoga can help lower stress levels. Over the long term, they can lower your resting heart rate, too
Environments include both _____ and _____ things.
Question 1 options:
resources; factors
air; water
living; nonliving
buildings; animals
Can you please give some example's of endangered animal's ? :<
Answer:
axolotls and other few species of fish
giant panda (Ailuropoda melanoleuca) ...
tiger (Panthera tigris) ...
whooping crane (Grus americana) ...
blue whale (Balaenoptera musculus) ...
Asian elephant (Elephas maximus) ...
sea otter (Enhydra lutris) ...
snow leopard (Panthera uncia) ...
gorilla (Gorilla beringei andGorilla gorilla)
Label the 3 layers of the sun
Answer:
middle layer is core, second layer is radiative, and the outer layer is convection
Explanation:
Which adaptations allowed reptiles to complete their life cycles on land? an amniotic egg lungs four legs ectothermic metabolism
Answer: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by amniotic membranes. The amniotes include reptiles, birds, and mammals. A key adaptation that permitted reptiles to live on land was the development of scaly skin. I hope this helps
Explanation:
you see a dog with completely black fur. what can you say about fur color genetics in this dog?
How is a facial expression similar to gene expression?
Explanation:
But researchers in Israel have done a study showing that families have characteristic facial expressions, ones even shared by blind members of the families. The results suggests that such expressions may be inherited and thus under some genetic control.
Photosynthesis is a major metabolic reaction on planet earth. Explain the following for photosynthesis: Its function (in biology function means what something does) Its location (where in the cell does it take place) The reactants (what goes into the reaction) The products (what comes out of the reaction)
Which of the following is an abiotic reservoir? View Available Hint(s)for Part A birds soil the fish in the sea an algal bloom
Answer:B
Explanation:
