What powers the protein ATP Synthase?
A. light
B. glucose
C. NAPH
D. H+
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.
The diagram below shows a food web. The organisms in a food web can be classified based on how they
get the energy they need.
Which organism in this food web is a primary consumer?
A>mouse
B>snake
C.fox
D.hawk
The Sun seems to move across the sky each day because of the rotation of the Earth on its axis. The Sun's path across the sky also appears to change over the different seasons of the year.
Why does the Sun's path change over the different seasons?
A.
because the Earth is tilted and revolving around the Sun
B.
because the Sun is tilted and rotates around its axis
C.
because the Sun is tilted and revolving around the Earth
The _____ controls what enters and leaves the cell.
1.mitochondria
2.endoplasmic reticulum
3.nucleus
4.cell membrane
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
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.
Answer This! Good Luck!
Answer:
It can be but up to where the kidiny is and it could be made to detectice unhealthy organs.
Explanation:
Which of the following is a reactant in aerobic respiration?
◉ATP
◉Carbon dioxide
◉Lactic acid
◉Oxygen
im thinking its oxygen but lemme know if im wrong :p
Answer:
oxygen (you are right :)
The graph below shows how the numbers of two different organisms in a forest changed over time. The
changes in population sizes can be used to make inferences about the relationship between wolves and
rabbits in this forest.
]
Based on the information in the graph, what is the most likely relationship between these organisms?
A.Wolves are predators of rabbits.
B.The relationship between wolves and rabbits is commensalism.
C.Rabbits and wolves rely on the same food source.
D.Wolves and rabbits have a mutualistic relationship.
Answer:
I think it would be A.
Explanation:
Organism's traits depend on the____in its cells.
1.colors
2.fats
3. lipids
4. proteins
When the moon passes through the Earth's shadow, a ______ eclipse occurs.
A. partial
B. full
C. lunar
D. solar
Chloroplasts Functions:
1. Organizes internal parts of the cell.
2.Cell movements, and structural support.
3.Makes ribosomes.
4.Photosynthesis
which one?.
Scers who search for oss scheuse the smalfossilto describe some of the finds. An example of a transitional fossilis Dimetrodon, which lived 280-265 million years ago. Dimetrodon had alzard-e appearance but had a sale
structurecking out from is back that owed to regulate is body temperature, an ability that is found today in modern warm-blooded mammals. While Dimetrodon swallowed its prey whole like reptiles do it also had different types of teeth, a tratalo
common to which of the best explains how tonalfossils support the theory of evolution?
Transitional fois show rats common to ancestors as well as descendants
Trafo show how the organic characteristics remain the same over time
Tanlos show how individual organism can change their characteristics during their times
Transitional fossils show how populations of past organisms were not able to change their characteristics over time
Answer:
sorry for the answer because I can"t understand it
ok i got it
please help
The Titanic was the most
A. vessel
B. luxurious
C. gazed
ship of its kind in 1912.
Answer:
B
Explanation:
The other answers dont make sense
Which of these statements best describes the connection between biodiversity and evolution?
The more biodiversity an area has, the greater the chances of new species arising.
If biodiversity is high, then more predation will take place, preventing species from evolving.
Without a lot of biodiversity, organisms are more likely to survive, so they have more time to adapt.
Evolution depends upon low biodiversity to keep population sizes down, which increases numbers of genes.
Answer:
I believe the answer is c
Explanation:
Why is Professor Jean-Jacques Muyembe-Tamfum's research and scientific contribution to the medical community an important source of information to the world?
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.
How many molecules are in this formula?
An example of a biosphere is _________.
Answer options:
Rainforest
Rocks, soil, water, and air on Earth
All the biomes of Texas
Earth
Describe the movement of Earth’s mantle. Explain how convection currents can cause tectonic plates to move.
Answer:
Heat rising and falling inside the mantle creates convection currents generated by radioactive decay in the core. The convection currents move the plates. Where convection currents diverge near the Earth's crust, plates move apart. Where convection currents converge, plates move towards each other.
Convection currents from core radioactive decay rise and fall in the mantle. Convection currents move plates. Plates separate near convection currents. Plates converge at convection currents.
What are convection currents?Convection currents are caused by differential heating. Warm, less dense, lighter material rises while cool, more dense, heavier material sinks. Convection currents are patterns of circulation that are produced by this movement in the Earth's mantle, oceans, and atmosphere.
Convection currents are produced by radioactive decay in the core and are caused by heat rising and falling inside the mantle. The plates are moved by convection currents. Plates separate where convection currents split close to the Earth's crust. Plates move in the direction of one another where convection currents converge.
Learn more about convection currents, here:
https://brainly.com/question/9739063
#SPJ2
What is a phenotype? *
The genetic makeup of the individual
The expression of a trait; PHysical appearance
An organism that has the same genes for a trait (example: TT or tt)
The passing of traits from parent to offspring
Answer:
B, the expression of a trait, Physical appearance
Explanation:
Genotype refers to the genetic makeup of someone, but phenotype refers to the physical traits the person displays based off their genotype.
Which of the following is true about the sun's radiation? It is long-wave. It is short-wave. 40 percent is reflected by the atmosphere. 60 percent reaches Earth's surface. None of the rays are harmful.
Answer:
it's long wave, 40% is reflected by the atmosphere, 60% reaches Earth's
Explanation:
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
Which characteristic of our solar system is most crucial to support life on Earth?
A.the length of time of earths revolution
B.distance between the earth and sun
C.the distance between the sun and other stars
Answer:
it is option B hope it helps
hello i need help again
Scientists have discovered an organism with the following characteristics:
• multicellular
• needs to eat food
• has a complex nervous system
• is able to move from one location to another
• growth occurs throughout its body
In which kingdom is this organism most likely to be classified?
Animalia
Bacteria
Fungi
Plantae
No
Answer:
Animalia
Explanation:
...................
How can you use the terms of air pressure, air masses, and fonts to describe the formation of a tornado ??
Please answer this question, preferred to be answered logically.