Margaret Brown
A. gazed
B. heave
C. descend
into the eyes of the frightened passengers in her lifeboat.
Answer:
A. Gazed
Explanation:
you cant heave or descend into someones eyes. Gazing or looking into someone's eyes makes the most sense.
Charles Darwin's theory of evolution describes how species evolve due to natural selection. Which of these is NOT evidence of natural selection
Camels have long, bushy eyelashes
Mint plant varieties are crossed to express desirable traits
The snowshoe hare is white in winter and brown in summer
Galapagos finches have stronger beaks after years of drought
PLEASE HELP ASAP!! I WILL MARK BRAINLIEST!!
Why do you think the food dye mixed at different rates?
Answer:
The food coloring mixes through the hot water faster than it mixes with the cold water. This is because in hot water, the water molecules have more energy and are moving faster than the molecules of cold water. This makes it easier for the dye to get mixed throughout the hot water.
Hope this helps!! (Please mark Brainliest if possible!!)
List 4 different organisms from the same food chain in the order of how the energy flows.
Answer:
Worm, Bird, Snakes, Hawks.
Explanation:
Hope this helps in anyway,
Worm, Bird, Snakes, Hawks are the order of how the energy flows.
What is Food chain?
Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.
Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. Plants, which convert solar energy to food by photosynthesis, are the primary food source.
Because energy, in the form of heat, is lost at each step, or trophic level, chains do not normally encompass more than four or five trophic levels. People can increase the total food supply by cutting out one step in the food chain.
Therefore, Worm, Bird, Snakes, Hawks are the order of how the energy flows.
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Answer the following questions in complete sentences in the space provided:
1. Why does cell division take place in single-celled organisms?
2. What occurs in a cell when it is not undergoing cell division?
3. How do chromosomes change before cell division?
4. What is mitosis?
5. Why doesn’t mitosis occur in prokaryotes?
6. What would happen if DNA did not duplicate during interphase?
7. What is cytokinesis and when does it happen?
8. During what phase of mitosis do the chromosomes line up?
9. When do the chromosomes condense and become visible under a microscope? 10. What happens to the chromosomes during anaphase?
11. Sometimes a cell inaccurately duplicated its DNA, and the resulting cells are not identical. What effects might such a change have on the organism?
Answer:
1.All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences. Single-celled organisms use cell division as their method of reproduction.
2.What happens to cells that "decide" not to divide? If the decision is to not divide, the cell goes into a quiescent, or nondividing state, called G0 (G zero).
3.Prophase is the first phase of mitosis. During this phase, the chromosomes inside the cell's nucleus condense and form tight structures. In fact, the chromosomes become so dense that they appear as curvy, dark lines when viewed under a microscope (Figure 1).
4.Mitosis is a process where a single cell divides into two identical daughter cells (cell division).
5.In bacterial cells, the genome consists of a single, circular DNA chromosome; therefore, the process of cell division is simplified. Mitosis is unnecessary because there is no nucleus or multiple chromosomes. This type of cell division is called binary fission.
6.If a cell has not properly copied its chromosomes or there is damage to the DNA, the CDK will not activate the S phase cyclin and the cell will not progress to the G2 phase. The cell will remain in S phase until the chromosomes are properly copied, or the cell will undergo programmed cell death.
7.Cytokinesisis the part of the cell division process during which the cytoplasm of a single eukaryotic cell divides into two daughter cells. Cytoplasmic division begins during or after the late stages of nuclear division in mitosis and meiosis.
8.Metaphase. Chromosomes line up at the metaphase plate, under tension from the mitotic spindle. The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles. In metaphase, the spindle has captured all the chromosomes and lined them up at the middle of the cell, ready to divide.
9.During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes.
11.When Replication Errors Become Mutations. Incorrectly paired nucleotides that still remain following mismatch repair become permanent mutations after the next cell division. This is because once such mistakes are established, the cell no longer recognizes them as errors.
Two students are analyzing Earth’s ocean currents. Student A says that the purple arrows in the diagram can travel across the continents, but student B says that they cannot. Choose the explanation that would prove student B’s reasoning correct.
The high salinity of ocean currents propels the convection.
The high salinity of ocean currents propels the convection.
Air currents push ocean currents over continents.
Air currents push ocean currents over continents.
Air currents are unable to travel across continents.
Air currents are unable to travel across continents.
Ocean currents are shaped by continental deflection and do not move across land.
Answer:
Step- by -Step Explanation:
Is the following statement true or false:
It takes the same amount of time for the moon to rotate on its axis as it takes it to complete a revolution around the earth.
Why isn’t deep groundwater readily available for human use?
Answer:
Water covers about 71% of the earth's surface. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface
Explanation:
Answer:
We need to leave water for animals i guess
Explanation:
What could Carl Linnaeus no have used as a method of classification in his taxonomy system ?
A. DNA
B. the habitats of organisms
C. structure of organisms
D. apperance of organisms
Answer:
i dont know thats a hard one
Explanation:
(BRAILIIEST) Can someboody halp me with this
Answer:
The answer you are looking for is B. The gravitational pull of the moon
Explanation:
The moon influences tides the most. The moon's gravitational pull on the earth is strong enough to tug the oceans into bulge
Answer:
B.
Explanation:
I don't know how to explain but I was always told the moon effected/affected
the tide.
First person to answer it with all the question right gets brainly Est Question 1 (3 points)
To function on their own, what must unicellular organisms do?
Question 1 options:
work with other cells
perform a specialized task
make tissues
do all jobs for survival
Question 2 (3 points)
All living things are made of ______.
Question 2 options:
multicellular
tissues
cells
organisms
Question 3 (3 points)
A fish laying hundreds of eggs is an example of _________.
Question 3 options:
producing offspring
obtaining energy
all of the answers are correct
maintaining structure
Question 4 (3 points)
What do we call the branch of science for classification of organisms?
Question 4 options:
Taxonomy
Physics
Chemistry
Biology
Question 5 (3 points)
Which example is NOT a basic need of all organisms?
Question 5 options:
water
soil
food
appropriate enviornment
Question 6 (3 points)
All successful organisms must be able to do what three things?
Question 6 options:
obtain energy, produce offspring, eat
obtain energy, eat, play video games
maintain their structure, eat, build a home
obtain energy, produce offspring, maintain their structure
Question 7 (3 points)
Which example is NOT an organism?
Question 7 options:
bacteria
mold
human
lung
Question 8 (3 points)
What is an example of "maintaining structure"?
Question 8 options:
eating an apple
a cell dividing
healing a broken arm
catching a fish
Question 9 (3 points)
Which type of organism is ale to cause an infection or contagious disease?
Question 9 options:
rose
plant
animal
bacteria
Question 10 (3 points)
Saved
What do all living things need?
Question 10 options:
energy, water, sunshine, and protection
oxygen, an outer covering, parents, vitamins
food, water, air, and a place to live
water, parents, a place to live, and air
Answer:
Unicellular organisms include bacteria and some protists and fungi. Many unicellular organisms live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating other organisms. Plant-like protists, and some types of bacteria, can make their own food through photosynthesis.
Cells
All of the answer are correct r it is Producing offspring
Biology
Soil
obtain Energy,Produce offspring and maintain their structure
Lung
A cell Dividing
Bacteria
energy water sunshine and protection
Explanation:
I think i got some wrong like one or two.
Please help, this is worth 20 points!
Please answer this question, preferred to be answered logically.
The smallest unit of life of an organism is called what?
#1Tissues
#2Cells
#3Organs
#4Organ System
Help!!!!!!!!!!!!!!!!!!!!!
Answer:
Bohr did
Explanation:
Answer:
i think its bohr
Explanation:
it looks like the planetary model of an atom
Stephan’s mother is a mineralogist, and sometimes she brings home samples to study. Stephan observesand compares these minerals. He knows minerals form in several ways. He is especially interested in the minerals that form from volcanic activity and the kinds of crystals they form. What determines crystal size in minerals formed by lava or magma?
A. the kind of mineral that formed
B. the amount of material available
C. the rate at which the minerals cooled
D. the materials in the lava or magma
The rate at which the minerals cooled determines the crystal size in minerals formed by lava or magma. The correct option is C.
What determines crystal size in minerals?The solution is extremely saturated with some minerals, crystals form as magma cools. The crystals are quite tiny because they did not have much time to form if the magma cooled quickly. The crystals have ample time to form and become huge if the magma cools gradually.
The rate at which the minerals cooled Crystal size in minerals formed by lava or magma is primarily determined by the rate at which the minerals cooled.
When lava or magma cools slowly, it allows crystals to grow larger. Conversely, when it cools rapidly, crystals have less time to grow and thus remain smaller.
Therefore, the correct option is C.
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Carbon has six protons. Which model shows a neutral atom of carbon.
Answer:
b
Explanation:
Neutral carbon-12 (or any carbon atom) has 6 electrons with a total negative charge of 6e- orbiting a nucleus with a total positive charge of 6e+, so that the total net charge is zero. The nucleus is made up of 6 protons, each with a positive charge of e+, and 6 neutrons, each with zero charge.
sorry if i am wrong
Answer:
the answer is b
Explanation:
valence shell has 4 electrons
inner shell 2 electrons
How does energy move in a healthy ecosystem from the sun to the plants and animals?
Answer:
First,the sun transferes heat to the plants,helping them grow.Animals such as deer who would eat grass,eat plants.
Explanation:
Energy moves from one trophic level, or level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose.
What is energy transfer?
The sun is the principal energy source for practically all ecosystems on Earth. Energy moves from one trophic level, or level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose. Primary producers are then consumed by primary consumers, who are in turn eaten by secondary consumers, and so on. The food chain provides the simplest visual representation of this energy transfer.
A new trophic level is represented by each link in the chain, and the arrows depict the flow of energy through the chain. The primary producer is always at the bottom of a food chain. Plants are the most important primary producers in terrestrial ecosystems, whereas phytoplankton is the main primary producer in marine ecosystems. In their respective habitats, each generates the majority of the nutrients and energy required to maintain the rest of the food chain.
Gross primary productivity is the collective term for all the biomass produced by primary producers. After the primary producer has utilized the energy required for respiration, what is left over is what is known as net primary productivity. This is the portion that can be ingested and passed up the food chain by the main consumers.
Therefore, the transfer of energy within the trophic levels results in energy transfer.
Read more about trophic levels, here
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What powers the protein ATP Synthase?
A. light
B. glucose
C. NAPH
D. H+
Sorry for last time when you could not see it, but here you go.
Assignment: Energy Flow in Ecosystems Exploration
NOTE: Don't forget to submit a photo or scanned image of your food chain display diagram
OR the digital file of your food chain diagram along with this assignment worksheet.
(I have already answered all the questions, I just need a display/diagram) To send me the picture please use one of these apps:
disc ord: * *#9599
Snapcha t: xxeag19
Answer:
ok, i will send
Explanation:
Please help me with this worksheet !!!
PLSSS I NEED HELP!!!
Explain how natural forces and human effects affect the observed global temperature (black line) in graph 2. Is solar radiation a natural force or a human effect?
Answer: There is substantial evidence that human activities, especially burning fossil fuels, are leading to increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn amplify the natural greenhouse effect, causing the temperature of the Earth's atmosphere, ocean and land surface to increase.
Explanation:
Plants that are grown from undifferentiated cells of leaves, stems, or roots are produced by
A) fusion of spores
B) vegetative propagation
C) sexual reproduction
D) fission of gametes
Please help its due in two hours.
what direction is the wind coming from if the tail is going south west?
please help
On the date chart above the hight and low tide depths were recorded every coupl days. Looking specially at February 14th what type of tide is occurring? What moon phase would possibly occur on this date
Answer:
Explanation:um I don't really know full moom?
When the moon passes through the Earth's shadow, a ______ eclipse occurs.
A. partial
B. full
C. lunar
D. solar
When the moon blocks the sun's light, a ____ eclipse occurs.
A. solar
B. lunar
C. partial
D. full
The picture below shows one way that humans and mosquitoes interact.
What is the best classification of this relationship?
A.parasitism
B.competition
C.commensalism
D.mutualism
In the diagram of the transverse wave shown, the arrow labeled 1 is pointing at the -
A: compression B: crest C: trough D: wavelength
Answer:
b crest
Explanation:
the crest is the highest point
Answer:
C
Explanation:
