Answer:
The CELL THEORY, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin's theory of evolution (1859), Mendel's laws of inheritance (1865), and the establishment of comparative biochemistry (1940).
Ultrastructural research and modern molecular biology have added many tenets to the cell theory, but it remains as the preeminent theory of biology. The Cell Theory is to Biology as Atomic Theory is to Physics.
Question 4
1 pts
The Earth is made up of 75% water. Sources such as oceans, lakes, and
rivers have an important role in keeping Earth's surface insulated and
warm. What property of water provides this protection?
O Ability as a solvent
O Cohesion
Hydrogen bonds
O Specific heat
Answer:
The correct answer is - specific heat.
Explanation:
Water has an important property named specific heat, which is an amount of heat required to increase the temperature of a given amount of a substance. So, to increase the temperature of 1 g water to one degree, the amount of heat is required is the specific heat of the water.
Specific heat helps in regulating the change in temperature of the earth due to its requirement of a proper amount of heat to increase the temperature of water to extent of boiling similar happen in colling as it is required to release a proper amount of heat.
Thus, the correct answer is - specific heat.
plz help me i will give u brainlist
The water level in McColm Pond went down drastically during a drought last summer. Some students
decide to monitor the water level during a school year. There is a dock over the pond. Which is the BEST method for collecting data on the level of water in the pond?
A. Visit the pond at the end of the year and measure the water depth with a measuring pole at different spots.
B. Visit the pond each month and measure the water depth with a measuring pole at the end of the dock.
C. Visit the pond at the end of the year and measure the water depth with a measuring pole at the end of the dock.
Name the type of fatty acids found in lipids that form solid fats and oils at room temperature
Answer:
Unsaturated fatty acids form solid fats and oils at room temperature
Which is a limiting nutrient for plant growth?
water
nitrogen
carbon
oxygen
Answer:
Nitrogen
Explanation:
Nitrogen and phosphorus are among the elements considered most limiting to plant growth.
Hope it helps!
The limiting nutrient for plant growth is:
B. Nitrogen
Others are needed for the growth of plants.
Nutrients for plant growth:Supplement lacks can present genuine dangers to establishing efficiency, supplements can become poisonous in abundance, which is likewise dangerous. Whenever a few micronutrients gather to extremely undeniable levels in plants, they add to the age of responsive oxygen species (ROS), which can cause broad cell harm.
The nutrient that is required in a minimum amount for plant growth is Nitrogen.
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Can you help me ifts science and I’ll give you a branlist list please help me
Answer:
The answer is A!
Explanation:
Because liquids and gases move, soilds will stay in place unless you move it.
Explain why the plants from year 2-4 may not be
present in year 25-50
Answer:
ecological succession.
Explanation:
The plant may not be present in 25-50 years due to ecological succession. in ecological succession, the vegetation such as small plants that is present replaces by the more suitable vegetation such as trees because the vegetation (small plants) did not receive nutrients and sunlight so they are unable to grow and finally dies due to lack of basic needs. So that's why plant may not be present 25-50 years.
You just swam in a pool for 3 hours straight. Now your skin is wrinkly/pruned! This is an example of:
A osmosis
B diffusion
C active transport
Answer:
the answer would be A
Explanation:
What is an asymptomatic carrier?
Asymptomatic carrier
An asymptomatic carrier is a person or other organism that has become infected with a pathogen, but that displays no signs or symptoms. Although unaffected by the pathogen, carriers can transmit it to others or develop symptoms in later stages of the disease.
Answer:
An Asymtomatic carrier is someone who is carrying a disease but doesn't feel the side effects
Explanation:
Example somebody may have (the 2020 disease)but doesn't feel the dry cough or any of the other symptoms
Helppp w this question
Answer:
A
Explanation:
what makes a scientific observation different from day to day?
lo hace diferente por la obserbasion de las las estrellas y cambios de la luna
what is wolf biology
How can resource conservation benefit the environment?
A. Resource conservation can help preserve natural habitats.
B. Resource conservation can reduce water pollution.
C. Resource conservation can reduce air pollution.
D. All of the above
Answer:
D is the right answer
Explanation:
By conserving resources, we can protect the air, water, and land for future generations. It doesn't take much effort to use less water, electricity, and other resources at home and work. With small changes, you can have a significant impact on creating a more environmentally friendly world.
Resource conservation can benefit the environment in the following ways:
Resource conservation can help preserve natural habitatsResource conservation can reduce water pollution Resource conservation can reduce air pollutionWhat is resource conservation?Resources are substances used to achieve a goal or objective. They can either be natural or artificial.
However, during the process of using these resources, a lot of damage can be done on the environment, hence, compromising sustainability.
The conservation of resources i.e. wise use helps reduce the risk of pollution or negative effect on the environment.
Therefore, resource conservation can benefit the environment in the following ways:
Resource conservation can help preserve natural habitatsResource conservation can reduce water pollution Resource conservation can reduce air pollutionLearn more about resource conservation at: https://brainly.com/question/15211198
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NEED HELP DUE TODAY PLZ HELP ME I AM STUCK PLZ PLZ PLZ HELP ME!!!!
Which of the following structures are found in eukaryotes, but not prokaryotes?
Choose 1 answer:
(Choice A)
A
Golgi body
(Choice B)
B
Cytosol
(Choice C)
C
Cell membrane
(Choice D)
D
Cilia
Answer:
A. Golgi body
Explanation:
Answer:
in my point of view it should be Golgi body
The process of maintaining a relatively constant internal environment despite changes in the external environment is called
Answer:
Homeostasis
Explanation:
The process of maintaining a relatively constant internal environment despite changes in the external environment is called Homeostasis
Which of the following pH levels will most likely NOT affect enzyme activity
7
3
12(high ph)
2 (low ph)
Answer:
7
Explanation:
It is a neautral pH (pure water has a neautral pH).. Every enzyme works at an optimum pH and different enzymes work best at different pH.
The pH levels that will most likely NOT affect enzyme activity is 7
Enzymes are those soluble proteins found in the body which help in food digestion.
Enzymes are sensitive to the acidity or alkalinity of their environment.
Some enzymes require an acidic medium which is from 0 to 6 in the pH scale while some require an alkaline medium which is from 8 to 14 in pH scale.
Also some enzymes work best in neutral medium which is at pH 7.
However, enzymes are highly affected in extreme pH such as 1, 2, 3 ( low pH indicating high acidity) and 12, 13 14( high pH indicating high alkalinity).
This is because bonds holding the complementary active site of an enzyme break at extreme pH, preventing substrates from binding to it.
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Please HELP I am TIMED!!!!
Which of the following nutrients in fertilizer causes abnormalities in muscle contractions?
zinc
potassium
nitrogen
copper
Answer:
potassium I think I am not sure
HELP WORTHA FREE BRAINLY IF RIGHT
Answer: The answers seem correct.
1. Active transport - the process in which energy is used to move the particles of a substance against a concentration gradient from a region where they are in lower concentration to a region whey are in higher concentration.
2. The answer chosen for #2 makes sense because energy is usually needed when you putting effort into doing an activity that includes some type of force. That means ions are using energy to be moved against the concentration gradient.
3. Volume makes sense for the last question since the cells are using a space (volume) to move material in and out by diffusion. The other options besides volume are unreasonable.
How has human use of salt marshes changed over time? a. Humans have come to value salt marshes and now seek to preserve and restore them. b. Humans now use drained salt marshes exclusively for agriculture. c. Humans have begun to use salt marshes for landfills. d. Humans have begun to use marsh land for housing and commercial development.
Answer:
. Humans have come to value salt marshes and now seek to preserve and restore them
This is the portion of a wet land that is constantly flooded by tides,,and as the salt water carried by the tide regresses, it drained this portion of land leaving a wet land.This wetland is called salt mashes.They are ubiquitous,in the estuary habitat.
The soil layer is mostly of deep mud and peat.The latter contain decomposing plant material carried by the tide.The oxygen level is usually low,due to activities of bacteria abundant in the soil.Its vegetation contain some covered grasses,herbs,and shrubs,because the constant flooding depleted the soil nutrients.
Humanity has come to realized that these wetlands has some benefits
1.it Protect the shorelines from being washed away by erosion.This is because it reduced the momentum of erosion by buffering the effect of the waves,reducing it speed and therefore reducing the damaging effect of the erosion.,
It also reduces flooding by reducing run off, by allowing rain water to sink deep,therefore prevent stagnancy of water on the soil surface, slowing down the pace,which would have removed the topmost layer containing nutrients
It also improve the quality if water available,because he debris carried the tides serve as the sever to filter the water,separating sediment,improving quality.
Answer:
A
Explanation:
In parasitism, the organism benefiting is called the ____.
parasite
predator
host
prey
Answer:
parasite
Explanation:
The parasite is the organism that benefits from the relationship, while the host is harmed by the relationship.
Which movement of particles would be most affected by a disorder that causes damage to cartier proteins?
If many new plants and trees are introduced into the ecosystem, how will this affect the numbers of the other organisms within the ecosystem?
Answer:
IT doesn't affect any organisms because the are habita's
The community of the animals and the plants along the abiotic factors is called an ecosystem. New plants can benefit the species and the invasive can harm the species.
What are the effects of the plant introduction in an ecosystem?The introduction of new plant species in an ecosystem affects the ecosystem and the species habiting the area as it can become part of their chain if gets adapted to the area.
The introduction of the non-native or invasive species will harm the organism of the ecosystem as they can be harmful or toxic for the organism living there and hence, reducing their population.
Therefore, the introduction can increase or decrease the population of the organism.
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true or false
All living things have a heart.
Answer:
False
Explanation:
Can you same the same thing about organisms and aquatic animals, not every single living thing has an heart to survive.
what are two examples of non human organizms
Answer:
A Dolphin and a Spider
Explanation:
Non-human organisms are animals other than the Homo sapiens species. Whales and crocodiles are examples of non-human organisms.
What are non-human organisms?Non-human organisms are the species of the kingdom Animalia that are apart from the Homo sapiens species but can be a mammal, amphibians, reptiles, aves, etc.
The whale and monkeys belong to a mammalian class, whereas crocodiles are reptiles. They are not primates and do not belong to the genus Homo that classifies humans.
Therefore, Whales and crocodiles are examples of non-human organisms.
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Scientists can find new discoveries that change their current understanding of scientific knowledge. True or False?
Answer: True
Explanation:
I took the test :)
What are two types of ecological pyramids?
can someone plz help me with this question u get 20 if u give me a good answer
Answer:
The Main Differences are in a aquatic Habitat the animals / organisms live the water.
In a Grassland Habitat the animals / organisms live on / in land.
A City Habitat is often covered with concrete, asphalt, and buildings, which are not man made material.
Examples:
1. Aquatic Habitat organisms include fish, whales and plankton.
2.Grassland Habitat organisms include bears, lions and wolves.
3.City Habitat organisms include plants, pigeons and people.
What are some functions of the plasma membrane?
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
`what is physical science
Physical science is concerned with the inorganic world, including physics, astronomy, certain types of chemistry, and generally, earth sciences. If it includes non-living things, it is physical science.
Answer: the study of what things are made of and how they change
Explanation: Hope this helps :) Brainliest?
Organisms that gain nutrients and energy by eating another organism are called
carnivores hope this help
Answer:
Parasites
Explanation:
Example is a tick feeding on a dog
fill in the blank spaces
After exercise, capillaries close to the surface of the skin become
; this process is called
. More blood supply goes through the capillaries so more heat is lost from the
.
Answer:
Body temperature is monitored and controlled by the thermoregulatory centre in the brain. This centre has receptors sensitive to the temperature of the blood flowing through the brain. If the core body temperature is too high, the thermoregulatory centre causes the blood vessels supplying the skin capillaries to expand so that more blood flows through them. Since the blood flows through the entire body, it can take the excess heat from the core of the body to the skin, where it can be lost. When a blood vessel of any sort increases in diameter, we say that it dilates. Because the dilation is related to the vascular (blood) system, this process is called vasodilation.
