awnser:
The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle. The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material.
Answer:
The nucleus is the central and most important part of an object, it controls and regulate the activity of cells. The nucleus also carries the genes.
Explanation:
Defined as variation of life on Earth, ____________ is the number and relative abundance of different species.
Answer: Diversity
Explanation: The earth is composed of different species of organisms spread across various parts and regions of the earth. The idea of having varying classes of species scattered on the earth is called diversity culled from the word diverse, which is used to describe a property of Variation in component. Hence, diversity explains the variation in the number and size of different species, culture and languages (biodiversity) and other components of the human existence. Additionally, the concept of diversity helps us realize the need to respect and embrace our differences in other to foster progressive relationship.
What determines how much energy a human can receive from food?
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A. How much the food molecules weigh
B. How much energy the food molecules have
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C. How much nitrogen the food contains
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D. How much oxygen the food contains
Helpppp please this is due at 12:00 am it’s 11:05 pm rn
Answer:
Milliliters.
Explanation:
They are the measurement for volume used for liquids
Questions (25)
1 - Quiz
What body system helps break down food?
Answer:
The digestive system
Explanation:
The digestive system breaks down food
Answer:
digestive also know as homostasis
Explanation:
Trevor wanted to find out what fertilizer worked best for growing marigolds. He put Miracle Grow on one, Scotts fertilizer on another, and no fertilizer on the third marigold. What is the control?
a. Marigold with no fertilizer
b. Type of fertilizer
c. Plant growth
d. Amount of water
Answer:
a. Marigold with no fertilizer
Explanation:
An experiment contains variables including independent and dependent variables. The independent variable is the variable that is changed by the experimenter, which is the TYPE OF FERTILIZER in this case, while the dependent variable is the measured variable, which is the GROWTH OF MARIGOLDS in this experiment.
However, a control group is a group that does not receive any experimental treatment. In other words, the independent variable is unchanged in the control group. The control group is regarded as the "normal" used to compare with the experimental group (group that receives treatment). In this experiment, the group of marigolds that DOES NOT RECEIVE FERTILIZER is the control group.
All autotrophs produce valuable organic molecules. What makes these organic molecules so valuable to living organisms
Answer:
The valuable organic molecules produced by autotrophs serve as sources of food for the heterotroph and supply the necessary nutrients living organisms need to grow and survive.
Without these valuable organic molecules living organisms can not survive , grow and develop.
The organic molecules serve as sources of energy needed to fuel biological processes in the organisms.
Explanation:
Autotrophs are group of organisms that can produce their own food through the process of photosynthesis where inorganic molecules are converted to organic molecules i.e they use light energy from the sun with water and carbondioxide to produce carbohydrates and oxygen.
Heterotrophs or other living organisms depend on autotrophs for the supply of organic matter as food nutrients and sources of energy needed for cellular or biologic processes.
The picture below represents a carbon atom.
How many protons does this atom have?
A. 12
B. 0
C. 6
D. 18
How many independent variables can be tested in a controlled experiment?
(A) five
(B) as many as you want
(C) two
(D) one
What are control variables?
Answer:
scientific experimentation is an experimental element which is constant and unchanged throughout the course of the investigation
Explanation:
throughout the course of the investigation.
The control variables themselves are not of primary interest to the experimenter.
Living systems are incredibly diverse in size, shape, environment, and behavior. It is estimated that there are between 10 million and 100 million different species. Despite this wide variety of organisms, it remains difficult to define what it means to say something is alive. Which of the following can be described as the smallest living unit?A.) OrganelleB.) DNAC.) ProteinD.) Cell
Answer:
The correct answer is:
Cell (D.)
Explanation:
The cell is the basic structural, functional and biological unit of a living organism that is the smallest unit of life. It is said to be the building block of life. Being the smallest unit of life, a cell is a collection of organelles and biomolecules that can function independently and still possess the qualities of life. These structures are enclosed in a cytoplasm, within a membrane, and these biomolecules include Nucleic acids (DNA, RNA), proteins etc.
The energy in many of those food particles is ultimately transferred into ______. A. Complex carbohydrates B. Glucose C. Proteins D. Lipids
The city plans to build a highway extension next to a river. Which of the following should they do to make sure they have scientific knowledge to inform their decision? A. Invite several gas and oil companies to build gas stations along the route B. Request a budget increase to extend the project even more C. Conduct a study of the river levels in different seasons to be sure the highway is out of the flood zone D. Publish the highway plans for people to review
Answer:
c
Explanation:
hope this helps!
Answer:
The answer is c I just took the test
Explanation:
Which is the most abundant gas in earths atmosphere
Answer:
nitrogen, and oxygen
Explanation:
Answer:
Nitrogen
Explanation:
I took the k12 test.
What are two abiotic and two biotic conditions in a coral reef that provide the conditions necessary for it to have high biodiversity? How could a disturbance affect the biodiversity of the coral reef?
Answer:
The two abiotic conditions in the coral reef that contribute to the high biodiversity are:
TemperatureSunlightWhilst the abiotic factors are
Plant and BacteriaExplanation:
The coral reef which covers a space of 115,831 square miles (or 30 million hectares os space) is home to a rich diversity of aquatic life (plants and animals alike). Being the largest coral reef on earth a lot of attention is given to it to ensure that its health and functionality is preserved.
The above factors contribute immensely to the stability and operability of the great reef.
The coral reef abounds with many aquatic animals such as crabs, herbivorous fish, sea turtles, sea urchins etc Many of these feed off microscopic plants such as the phytoplankton (that is tiny plants) and microscopic animals referred to as zooplankton. The zooplankton in turn feed off microscopic plant, bacterioplankton and even other zooplankton.
It is easy to see that at the base of the food chain lies Phytoplankton and bacterioplankton. This group require sunlight to thrive.
The smaller herbivorous fish, crabs, sea turtles and urchins on the other hand, constitute food for larger animals such as sharks, Baracuda etc.
It is also important to note that these microscopic life (plant and animals) require a certain temperature to thrive. If the water body in these eco system were to exceed a certain temperature, it is highly doubtful that they would survive. The death the the plant and animal life at the base of the food chain will completely disrupt the entire biodiversity and may even lead to its extinction.
Cheers!
A scientific___is a statement that summarizes a pattern found in nature.
Answer:
A scientific law.
The father a star is away from earth, the more it is
Answer- red shifted
The farther a star is from Earth, it will be more red shifted. Hope it helps!
what happens to an unfertilized ovum?
Answer:
The egg disintegrates and sheds the endometrium
Answer:
If left unfertilized, the egg disintegrates and the uterine lining is shed during your period.
Explanation:
what is a strong triangular iron strip of plough called
Answer:
Strong triangular iron strip in plough is known as ploughshare.
Match the scientist with the research studies
Chemistry
geology
Astronomy
physics
Definitions
Planetary motion galaxies
Composition of matter
Physical structure of the earth
Natural laws of the the universe
Answer:
Astronomy: Planetary motion galaxies.
Chemistry: Composition of matter.
Geology: Physical structure of the Earth.
Physics: Natural laws of the universe.
Explanation:
I hope it helps!
Plsss help me fast!!!!!!
2
What forms at a divergent plate boundary such as in the middle of the Atlantic Ocean?
a) Tall mountains
b) Deep valleys
c) Sea mounts
d) Under sea ridge
Answer:
The Mid-Atlantic Ridge (MAR) is a mid-ocean ridge, a divergent or constructive plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world. In the North Atlantic, it separates the North American from the Eurasian Plate and the African Plate, north and south of the Azores Triple Junction respectively. In the South Atlantic, it separates the African and South American plates. The ridge extends from a junction with the Gakkel Ridge (Mid-Arctic Ridge) northeast of Greenland southward to the Bouvet Triple Junction in the South Atlantic. Although the Mid-Atlantic Ridge is mostly an underwater feature, portions of it have enough elevation to extend above sea level, for example in Iceland. The ridge has an average spreading rate of about 2.5 centimetres (1 in) per year.[1]
Explanation:
Please make branilest and hope I helped!
How is density calculated given mass and volume
Answer:
[tex]p =m/V[/tex]
Explanation:
[tex]p=\frac{m}{V} \\\\[/tex]
Where p = Density
m = mass
V = volume
Answer:
Mass divided by volume
Explanation:
brainliest answer please
Students in a science class placed ice cubes in a cup. They were studying variables that affected how long it takes the
ice to melt. Select the variable that would most likely NOT affect the time it takes the ice to melt.
Answer:
its okay it's a bit of the a to you and it's just not worth the effort of theAccording to the data collected by the Economic Policy Institute, what is the relationship between annual earnings and education attainment?
The majior fields that contribute to environmental science
Did the enzymes from Claire's small intestine break down the
protein at a low, normal or high rate?
Answer: low rate
Explanation:
Claire is a Great Dane who was losing weight despite the fact that she is eating. Claire doesn't have an increase in appetite and also doesn't have enough energy that is required for her to play.
Claire is losing weight because food the enzymes in her body doesn't break down the food that she eats. When compared to a dog that was healthy, the enzymes from Claire's small intestine broke down protein at a low rate.
Small intestine of Claire break down the protein at a low rate.
The enzymes from Claire's small intestine break down the protein at a low rate because the proteases is present in a very low amount in the small intestine. The proteases enzyme is responsible for the break down of proteins.
If proteases is present in large amount then the protein present in food is broken down at a faster rate while on the other hand, if the proteases is present in small amount then more time is needed to digest the protein so that's why Claire's small intestine break down the protein at a low rate.
Learn more: https://brainly.com/question/17366803
Visual Reading tool:modeling Global Systems
Answer:
The Understanding. Global Change model is only one way to show the interactions of. Earth's systems
Explanation:
help!! only 5 minutes remaining
Answer:
C.
Explanation:
Total energy will always stay the same because there's no friction. There will be different kinetic and potential energy levels at each point on the pendulum.
HELP WILL MARK YOU BRAINLIEST!!!
Answer:
B) Destruction of Habitat
Explanation:
Botany Professor. Dr. Noa Nkembe. is conducting research over how temperature effects the toxicity of Toxicodendron diversilobum (poison oak). He grows the plant in controlled environments that are kept at temperatures that vary by just 0.05 degrees Celsius. Which of the thermometers would be the BEST choice for him to use for this experiment? Justify your answer. A.Glass thermometer B.Temperature probe C.Temperature strip
Answer:
The correct answer is - option A. Glass thermometer.
Explanation:
Glass or basal thermometers are the instruments that are use to measure temperature of any surface or organism. These are best choice for the measuring smaller changes in the temperature which can vary up to 1/10th of the degree to 1/100th of the degree.
In this case the temperature variation is 0.05 in the environment of the Toxicodendron diversilobum (poison oak) which can easily be monitor with the help of this glass temperature.
Thus, the correct answer is - option A. Glass thermometer.