Sunflowers have specialized cells that enable the sunflower to track the
Sun. Which of the following allows the sunflower to move to face the Sun? *
1 point
A.Gravity
B.Electricity
C.Friction
D.Turgor
The sunflower moves to face in the direction of Sun due to the presence of specialized cells. This movement is in response to the electricity. Thus, the correct option is B.
What causes movement of Sunflower?Sunflowers show heliotropic movement. This suggests that there is a learned diurnal rhythm in sunflower due to presence of specialized cells which is followed even in the absence of a strong directional light. Leaves and floral parts of sunflower both exhibit heliotropism. Floral heliotropism is generally controlled by the motor cells which are located just below the flower head.
The movement in sunflower to face the Sun is due to the electricity which is possible due to the movement of ions in the cells. This is called as phototropism.
Therefore, the correct option is B.
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An offspring with type o blood (00) can only belong to which of the following combinations
of parents?
Answer:
AO X BO
Explanation:
Offspring will look like AB AO BO OO
Which of the following statements is correct?
1. Fossils are imprints of living things and bones are directly from living things
2. Photos are directly from living things and bones are imprints of living things
3. Both fossils and bones are the same and are directly from living things
4.Both fossils and bones are the same and are imprints of living things
Answer:
2 . photo are directly from living things and bone are imprint of living things
The table shows a list of organelles and their functions within an animal cell.
Cell Organelle
cell membrane - allows nutrients in and out of the cell
mitochondria - create the energy supply for the cell
organelle - ?
Which important animal cell organelle is missing from the table, and how would this affect the cell?
A. The chloroplast is missing, and the cell would not be able to produce sugar.
В. The cytoplasm is missing, and the cell would not be able to produce energy
C. The cell wall is missing, and the cell would not be able to maintain its rigid structure
D. The nucleus is missing, and the cell would not have genetic information for reproduction
Answer:
An organelle is a structure within the cytoplasm of a eukaryotic cell that is enclosed within a membrane and performs a specific job. Organelles are involved in many vital cell functions. Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles.A
Explanation:
True or False: New DNA is copied from existing DNA
Answer:
True.
Explanation:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. To accomplish this, each strand of existing DNA acts as a template for replication.
Why might better-insulated buildings make air pollution more of a problem?Why might better-insulated buildings make air pollution more of a problem?
COMPLETE QUESTION:
Why might better-insulated buildings make air pollution more of a problem?
ANSWER: It prevents the passage of waste gases out of the building and inflow of fresh air which can leads to health related issues.
EXPLANATION:
Building insulation reduces the heat surplus in warmer weather condition and reduces the heat loss during cold weather condition.
The negativity that comes with insulating a building is an increased air pollution. In the process of preventing heat loss to the environment by insulating a building, there's a resultant reduction or sometimes blocking of air flow inside the building. This will cause the concentration of waste that are in gas form inside the building, emanated from human activities like cooking (fuel burning), respiration, and other activities.
Overtime, this trapped in of waste gases can leads to sick building syndrome (an health related issue).
One please help me
It’s a a benchmark
35
Which best describes another name for an organism that is heterozygous for a trait?
A recessive
IN
B hybrid
purebred
D) dominant
Answer:
pretty sure hybrid
b. If the 2 pink flowered Groots produce 500 offspring, how many
of them should have red flowers? Explain your answer and show
your work.
Answer:
it would be 125
Explanation:
first draw punnet sqaure , by that you will get to know that the probailty of red pink and white flowers is 1:2:1 or 25 % chance of red and white will 50 % for pink flowers.
now ,in the question it is given that total offspring is 500:
for red flowers : 500 x 25% = 125
for white flowers : 500 x 25% = 125
for pink flowers : 500 x 50% = 250
Examples of vertebrate 
Answer:
fish, amphibians, reptiles, birds, and mammals
Explanation:
Answer:
frogs, tuna, snakes, parrots, and monkeys
PLS HELP ME WILL MARK BRAINLIEST
In the African Savanna, there are herbivores such as gazelles and zebras that feed on the grasses. Carnivores such as lions and cheetahs, also live in the area and eat gazelles and zebras. If a disease kills most of the gazelles, which best describes what might happen to the zebra population?
The zebra population would increase because of the increased competition for grass.
The zebra population would decrease because of the decreased competition for grass.
The zebra population would decrease because of increased predation by the lions and cheetahs.
The zebra population would increase because of decreased predation by the lions and cheetahs.
What's the answer please help me
Which compound can build up in muscles after an intense workout?
glucose
pyruvic acid
lactic acid
alcohol
Answer:
Lactic acid
Explanation:
In order to insure the survival of our planet, people have a responsibility to
A.avoid recycling materials
B.eliminate all plant life on this planet
C.consider the impact of their actions
D.use as much energy as possible
C. Consider the impact of their actions, is the correct answer.
A is not correct because recycling helps protect the environment and helps boost the economy. B is not correct because plants helps supply oxygen for humans and animals. It is also a food source for some animals and humans. C. is not correct because we need to save energy for a healthier and cleaner planet.
Which of the following events occurs during cytokinesis?
the cell begins to divide into two cells
the cell stops performing meiosis
the chromosomes start to divide
the chromosomes start to line up in the middle of the cell
Answer:
Cytokinesis is the process in which the cell divides into two.
If an ecosystem like the wetlands was in danger of collapsing, what could I do to fix it?
Answer: The development and adoption of new technologies or production models that are less resource-intensive and/or less polluting could reduce the risk of ecological collapse, as would a shift towards more sustainable lifestyles, more specifically changing consumption patterns, possibly accompanied by behaviour change.
Explanation:
Ocean ridges form at convergent boundary true or false
Answer:
True!
Explanation:
Sometimes an entire ocean closes as tectonic plates converge, causing blocks of thick continental crust to collide. A collision mountain range forms as the crust is compressed, crumpled, and thickened even more. The effect is like a swimmer putting a beach ball under his or her belly—the swimmer will rise up considerably out of the water. A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction.
The amount of energy available decreases from producer to first order, second order and third order consumers
true
false
Answer:
False
Explanation:
According to the food chain, energy increases up
That is,the first order is grass,which the second order(cow) feeds on,then the third order(Man) feeds on.
What is the complementary DNA strand to G C A T C T A A ?
Answer:
C G T A G A T T
Explanation: The complementary strand would be C G T A G A T T because you could think of it like
"A" Apple would go to a "T" Tree
And "C" Car would go with a "G" Garage.
For example if a DNA strand would be C G T T A
The complementary version would be G C A A T
1. Which of the following functions is the cell membrane responsible for? (Choose all that apply) containing the cell U protecting the cell regulating the cell's interaction with its surroundings housing hereditary information
Answer:
The First three answers are correct. (The last one refers to the nucleus which is also inside the cell membrane so i don't know if it's correct)
All of the options are correct for the function of cell membrane.
What is cell membrane?The cell membrane is a thin selectively semi-permeable membrane an outer covering of a cell by surrounding cell cytoplasm.
Proteins and lipids are the major components of cell membrane where as the ratio of protein to lipid in cell membrane may vary depending on types of cells.
The most common lipid in membrane is phospholipid, which form a semi-permeable lipid bilayer.
The function of cell membrane is to protect the integrity of the internal environment of the cell, act as a base of attachment for the cytoskeleton in some organisms resulted in support cell and maintain its shape.
It helps in transport of nutrients into the cell and transport of toxic substances out of the cell due to its selectively permeable nature.
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Hemophilia is a sex-linked recessive trait, represented by...
a lowercase letter h
an uppercase letter H
Answer:
hemophilia is represented by a lowercase h
Explanation:
because it is a recessive trait and not a dominant one
Answer:
the answer is a lowercase h
Can some please help me! I’ll give you brainiest
100 points!!!
solve the 3 problems
Answer:
Explanation:
Let's bring what you have learned about the carbon cycle, photosynthesis, and cellular respiration and show how they are connected/work together in an ecosystem. Play the role of a carbon atom in an ecosystem. Start with the production, how are you made? And then explain how you transform through different processes. Make sure to include your role in the carbon cycle, photosynthesis, and cellular respiration. There is no set length, as long as you explain the role of carbon in each process.
Answer:
Plants absorb carbondioxide gas from atmosphere whereas respiration releases carbondioxide .
Explanation:
Carbon is present in the atmosphere in the form of carbondioxide gas which is used by the plants in the process of photosynthesis. Plants takes carbondioxide gas from the surrounding air through small openings called stomata and made their own food while on the other hand, carbondioxide gas is released from the body of living organisms in the process of cellular respiration. In cellular respiration, food is broken down with the help of oxygen forming water, carbondioxide gas and energy in the form of ATP molecules.
What creates the air pressure difference between the equator and the poles
Answer:
gravaity
Explanation:
Is the force that pulls you to the outside while rounding a curve
The force that pulls us to the outside while rounding a curve is known as Centrifugal force
which acts away from the centre
3. Which statement accurately describes the role of the light-independent reactions?
(A
transforming light energy into chemical energy
B
transferring chemical energy to high-energy sugars
© returning chemical energy to light energy
O transferring light energy among different compounds
Answer:
I think a because I'm not an expert but I pay attention in science
The statement that accurately describes the role of the light-independent reactions is as follows:
Transferring chemical energy to high-energy sugars.Thus, the correct option for this question is B.
What is a Light-independent reaction?The light-independent reactions of photosynthesis occur in the stroma of the chloroplast in the presence of light itself. Rubisco is involved in this type of reaction. The Final product of this reaction is the production of carbohydrates. It also involves the fixation or reduction or assimilation of Carbon dioxide.
In the light-independent reaction, the light energy is transformed into chemical energy which is then transferred to the high-energy sugars component in order to derive energy for metabolic activities. The storage of high-energy sugar for future use when direct sugar is not available is also accomplished in this reaction.
Therefore, the correct option for this question is B.
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I need help with this ASAP
Roger explains to his sister the importance of water in cell processes. He describes the chemical structure of water to her. Which of the following claims about water can be supported by evidence?
Water is an element.
Water is a molecule because it contains carbon.
Water is a molecule because it is made up of two different elements.
Water is a molecule because it is made up of two or more atoms chemically combined.
Answer:
Water is a molecule because it is made up of two different elements
Explanation:
I just took the test
In a loudspeaker, ............... energy is converted into sound energy.
electrical
mechanical
kinetic
light
Answer:
electrical energy is converted