Answer: Carbon dioxide levels today are higher than at any point in at least the past 800,000 years. Global atmospheric carbon dioxide concentrations (CO2) in parts per million (ppm) for the past 800,000 years. ... Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. The large numbers of land animals raised to feed the Earth's growing population results in increased carbon dioxide levels in the atmosphere due to farming practices and respiration and methane production. This is another example of how human activity indirectly affects biogeochemical cycles in a significant way. 8. Gases in the atmosphere, such as carbon dioxide, trap heat similar to the glass roof of a greenhouse. These heat-trapping gases are called greenhouse gases. During the day, the Sun shines through the atmosphere. Earth's surface warms up in the sunlight. Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse.
Explanation:
Select the statement that describes the major site where antiviral action is blocked by the protease inhibitors. Select one: a. The protease inhibitors block the ability of the human immunodeficiency virus from attaching and entering the cell membrane. b. The protease inhibitors block the uncoating process of the human immunodeficiency virus by binding to protease. c. The protease inhibitors block the nucleic acid synthesis of the human immunodeficiency virus. d. The protease inhibitors inhibit the late protein synthesis and processing of the human immunodeficiency virus.
Answer:
d. The protease inhibitors inhibit the late protein synthesis and processing of the human immunodeficiency virus.
Explanation:
Protease inhibitors are antiviral agents used to fight against pathogenic viruses such as retroviruses (e.g., human immunodeficiency virus, HIV) and RNA viruses (e.g., hepatitis C virus). Protease inhibitors can drastically reduce the viral load. Protease inhibitors may target 1-virus-encoded proteases which are responsible to produce functional proteins from polyprotein precursors and 2-processing structural proteins that are required for virus assembly. Some examples of protease inhibitors include, among others, ritonavir and indinavir, which are used in patients with HIV infection.
How has genetics changed overtime
Answer:
Mutations involve changes in the arrangement of the bases that make up a gene. Even a change in just one base among the thousands of bases that make up a gene can have a major effect. A gene mutation can affect the cell in many ways. Some mutations stop a protein from being made at all.
Explanation:
Hope this helps!
Is the adaptation physical or behavioral. Humpback whales migrate north from Antarctica to breed in warmer water.
Answer:
okay so im going with a behavioural adaptation becasue if it was physical wouldnt that mean that they would change their appearance bc of there adaptation?
okie peace
Explanation:
Answer:
This adaptation is behavioral
Explanation:
Which Hawaiian island is the youngest (newest )?
Answer:im pretty sure its kauai actually
Explanation:yea i think soo!
Answer:
its hawaii
Explanation:
i hope its correct
plz can i get brainliest:)
how have humans changed the carbon cycle
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification.
Explanation:
How does nectar increase the ability of plants to reproduce?
Answer:
nectar is very sweet juice which attracts insects.
when those insects suck the nectar the pollen grains sticks to the body of those insects and then when they fly and sit on the other flowers and then those pollen grains are then transferred to the stigma of that flower which then forms a zygote and then forms a new flower.
and this is how nectar helps to reproduce
Albino individuals lack all pigmentation so that their hair and skin are white. This pedigree shows that albinism -
Female
Male
1
Albino
Individuals
2
A is a sex-linked gene.
B is carried only by females in this family,
C requires both parents to be albinos.
D is a recessive genetic trait.
Answer:
I -Albino individuals
What does the stamen consist of:
(Check all that apply)
A. pistil
B. filament
C. ovary
D. anther
Answer:
Filament and Anther
Explanation:
The stable stage that is established in an area as a result of the process of ecological succession is known as the
A) pioneer organism
B) climax community
C) biotic stage
D) heterotrophic community
Answer:
Climax community
Explanation:
Answer:
B is your answer
Explanation:
What is a cell? Why is it called the basic unit of life?
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What is a cell? Why is it called the basic unit of life?
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Cells are the basic unit of life, all living organisms are made up of cells, which means cells make up humans, plants and animals. Nonliving things on the other hand are composed of chemical elements and compounds.
Note: My answer is based on my understanding of your question.
Hopefully Help:)
#CarryOnLearning#NoToPlagirismWhat is the most likely reason the bones of the reptiles were found on more than one continent
Answer: Plate Tectonics
Explanation:
Explain the role of aquaporins in the rapid movement of water through some cells
Answer:
In the early 1990s, aquaporins were discovered, and it was found that they can selectively control water movement into and out of cells. One of the critical functions of aquaporins is that while they allow the passage of water they prevent the passage of ions.
Where in the plant does photosynthesis occur? *
A. Leaves
B. Flower
C. Roots
D. Stem
Answer:
It occurs in the leaves
A. Leaves
Explanation:
6. Theo wants to model the water cycle. What should he use as the source 7 points
of energy for the water cycle?
O A. a fan
B. a lamp
C. a pan of soil
D. a spray bottle
Other
This is a required question
What is the type of relationship between a rabbit and a leopard?
Answer:
Prey and Predator
Explanation:
rabbit is the prey and leopard is the predator
Answer:
Parisitism.
Explanation:
Im pretty sure the answer is parasitism because the Leopard would feed on the rabbit, meaning the leopard benifits while the rabbit would be harmed.
What are herbaceous an is it a flower?
Answer:
Herbaceous plants are plants that have non-woody stems. (Like annuals and biennials).
Question 2 of 6 Which two pieces of data could indicate that a volcano is about to erupt? A. An increase in temperature near Earth's surface B. A change in the types of gas detected in the air OC. A drop in average air temperature in one region D. A decrease in the ocean level near a mountain range.
HELPP ME PLZZZZ
Answer:
A is the correct answer.
what is the difference between the open-water zone and the deep water Zone
why are plate movements of convection important in earth science
What do decomposers leave behind after getting their energy?
А
chlorophyll and vitamins
B
carbon dioxide and water molecules
с
elements like carbon, nitrogen and phosphorus
D
energy-rich carbohydrates
Answer:
C: elements like carbon, nitrogen, and phosphorus
Explanation:
Choice C is the correct answer.
Decomposers leave elements like carbon, nitrogen, and phosphorus behind after getting their energy. Therefore, option C is correct.
What are decomposers?Decomposers are creatures that transform dead plants and animals into humus, a material with a deep brown color. Any ecosystem needs decomposers to function properly. Plants won't obtain vital nutrients if they aren't present in the ecosystem, and they will accumulate decaying objects.
Each contributes to the food recycling process in a different way. To transform dead plants or animals into simple substances, fungi release compounds. Some of these elements are absorbed by them for growth, while others go into the soil. As they ingest dirt, earthworms break down decaying plant and animal debris.
They leave elements such as carbon, nitrogen, and phosphorus after the decomposition of matter. Therefore, option C is correct.
Learn more about decomposers, here:
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After an outbreak of an illness, scientists use epidemiology to try to find *
A. the origin of a disease.
B. how the disease spreads.
C. how to prevent the disease from spreading.
D. all of the above
Answer:
D. all of the above
Explanation:
Two ramps of equal height are placed 1 m apart, and balls of equal mass are released from the top of each ramp. What happens to the motion of the balls when they meet in the middle?
The balls will move in a random direction.
The balls will stop.
The balls will continue moving forward.
Answer:
The ball will stop
Explanation:
I don't know much about it.
Answer:
the balls will continue moving forward
what is the next step in the scientific method, following forming a hypothesis?
A. Analyzing the data
B. stating the question
C. conducting an experiment
Hi there!
The answer to this question, I believe, would be C, conducting an experiment. When you make your hypothesis, you have already stated your question, analyzed the data, and formed a logical assumption that you need to prove is true. Your hypothesis is your logical assumption; therefore, you ought to experiment and see if your assumption - your hypothesis - is correct.
Hope this helps! :)
Answer:
Conducting an experiment
Explanation:
When a person is suddenly cut by a sharp object, a nervous impulse is sent along a sensory neuron to the spinal cord. The impulse is immediately transmitted through motor neurons to produce a response. Which of the following correctly identifies and describes this response?
A.It is a leamed response that does not occur in infants and small children
B. It is a reflex response that causes various muscles to contract in order to move away from the object.
C.It is a conditioned response that occurs only to prevent injury!
D. It is a voluntary response that is initiated only after the impulse has been caried to the relevant area of the brain.
Answer:
B. It is a reflex response that causes various muscles to contract in order to move away from the object.
Explanation:
I just took the Test
It is a reflex response that causes various muscles to contract in order to move away from the object. Therefore, option (B) is correct.
What is reflex response?A reflex response is an automatic, involuntary response to a stimulus that does not involve the conscious part of the brain. In this case, the reflex response causes various muscles to contract in order to move away from the sharp object, which helps to minimize further injury. Reflexes are a protective mechanism that can operate without the need for conscious control or decision making.
The reflex response described in this scenario is not a learned response, a conditioned response, or a voluntary response. It is an innate, automatic response that occurs in response to a specific stimulus, and it occurs in both infants and adults.
Learn more about reflex response, here:
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Two dogs pull on a rope. One dog pulls with a force of 5 N to the left, and the other dog pulls with a force of 3 N to the right. What is the result?
A.The rope remains in place.
B.The rope moves to the left.
C.The rope moves to the right.
D.The rope has a balanced force applied to it.
Answer: It's B because there is more force pulling to the left.
Hope it helps. Brainliest?
which of the following is a matter
Answer:
gas, liquid and solid
Explanation:
hi
Which of the following happens during interphase? A prophase B cell growth C cytokinesis D cell division
Answer: B Cell growth brainliest?
Explanation:
Help me with these pleaseeeewe
Answer: 13. The magnets in Set 1 will repel, The magnets in Set 1 will attract,The magnets in Set 1 will not move. 14. Set 2 will attract, and the magnets in Set 2 will repel, and the magnets in Set 2 will attract. brainliest?
Explanation:
What is the water table?
Answer:
C: The top of a saturated aquifer
Explanation:
The water table is the upper surface of the zone of saturation. This zone of saturation is where pores and fractures of the ground get saturated with water. It can also be simply explained as, the upper level, below which the ground is saturated.
Teniendo en cuenta problemáticas de la biología o de su aprendizaje ,pensar un tema investigar desde el enfoque cualita tivo y otro desde el enfoque cuantitativo
Answer:
Caso de estudio: El efecto de estresores ambientales sobre el comportamiento animal
- Ejemplo de un tipo de estudio cualitativo: la influencia de estresores ambientales (por ej. niveles anormales de dióxido de carbono atmosférico) sobre el comportamiento en ratones de laboratorio
- Ejemplo de un tipo de estudio cuantitativo: la influencia de estresores ambientales sobre los niveles de producción de hormonas asociadas a cambios comportamentales en ratones de laboratorio
Explanation:
Un enfoque cualitativo se caracteriza por el hecho de que la información obtenida durante dicho estudio se agrupa en categorías mutuamente excluyentes. En biología, los estudios de tipo cualitativo generalmente se caen dentro de la dicotomía observacional (es decir, presencia o ausencia del factor en estudio). En el ejemplo arriba citado, es posible obtener datos relacionados a uno o más determinado aspectos comportamentales en los individuos bajo estudio (por ejemplo, presencia o ausencia de signos de irritabilidad) en ratones sometidos a algún estresor ambiental (por ejemplo, niveles anormales de CO2 atmosférico). Por otra parte, en un enfoque cuantitativo, la información se recopila en intervalos obtenidos a partir de operaciones aritméticas (estadística paramétrica). En el ejemplo, los datos obtenidos pueden ser clasificados en intervalos referidos a los niveles hormonales. Esta información resulta útil para determinar si las diferencias en los niveles hormonales entre individuos que se encuentran en presencia del estresor ambiental son estadísticamente significativas respecto al grupo control (individuos desarrollados en un ambiente con niveles normales de CO2 atmosférico), y de este modo concluir si el estresor ambiental puede o no modificar variables comportamentales. Los estudios cualitativos permiten el uso de variables independientes las cuales son clasificadas como cualitativas (discretas).
