Answer:
Cell theory explains how cells function rather than predicting how they function.
Explanation:
1. A worker uses a board that is 4 m long to pry up a boulder. A small rock is used for a
fulcrum and is placed 0.5 m from the resistance end of the lever. Calculate the MA of the
I
board.
Answer:
7
Explanation:
Mechanical advantage is given by the ratio of the distance of the fulcrum from the two objects of the system.
Here the boulder is [tex]0.5\ \text{m}[/tex] from the fulcrum and the mass at the other end of the lever is [tex]4-0.5=3.5\ \text{m}[/tex] from the fulcrum.
So, mechanical advantage is given by
[tex]MA=\dfrac{3.5}{0.5}\\\Rightarrow MA=7[/tex]
So, mechanical advantage of the board is 7.
What holds the DNA, and controls the functions of eukaryotic cells?
Answer:
The nucleus
Explanation:
Answer:
Trust me
Explanation:
Its the nucleus
Which scenario causes gene flow?
a) an animal moves to a new population and mates.
b) new mutations arise within new populations.
c) one flower pollinates other flowers in its population.
d) a populations size decreases after a natural disaster.
why is the nucleus an important part of most cells
Answer:
its the brain of the cell
Explanation:
Answer:
Explanation:
The nucleus is the most important organelle in the cell. It contains the genetic material, the DNA, which is responsible for controlling and directing all the activities of the cell. All the RNAs needed for the cell are synthesized in the nucleus.
This cell is in what stage of mitosis?
Answer:
Prophase
Explanation:
I'm honestly looking at a diagram in my biology book.
What are proteins made of.
Answer: amino acids
Explanation:
40 POINTS PLEASE HELP
Answer: the structure in the cells nucleus that houses a cell’s genetic information is chromosome
Explanation:
Answer: Nucleus
Explanation: The nucleus serves as the cell's command center, sending directions to the cell to grow, mature, divide, or die. It also houses DNA (deoxyribonucleic acid), the cell's hereditary material.
how were the bones of this fish most likely fossilized
Answer:Animals cannot live without oxygen, so no animals live there. In these situations, the only possibility of fossilization is if a fish or other swimming animal dies in oxygen-rich waters above, sinks down into the stagnant muddy bottom, and is buried by sediments.
Explanation:
Answer:
Is there a picture of what you're asking
PLEASE PLEASE HELP ME!!
Answer:
the correct answer is b
Which statement is FALSE? A. Phototropism and geotropism are adaptations of plants that allow for survival. B. Tropism is the growth response of plants to their environment due to external stimuli. C. A plant's response to moonlight is phototropism while it's response to gravity is geotropism. D. A tropism that causes a plant to grow towards the stimulus is positive.
Answer:
A. Phototropism and geotropism are adaptations of plants that allow for survival.
Explanation:
Ideally, TROPISM is the growth response of plants to their environment due to external stimuli as rightly stated in this question. However, based on what stimulus the plant is responding to, there are different types of stimulus.
Phototropism (photo-light) is the response of an organism to a light source while Geotropism (geo- gravity) is the response of an organism to gravity. Hence, based on this question, a plant's response to moonlight is phototropism while it's response to gravity is geotropism.
Also, tropism can either be positive or negative depending on whether the response is towards the stimulus (positive) or away from the stimulus (negative). Therefore, the FALSE statement is "Phototropism and geotropism are adaptations of plants that allow for survival"
Which structure pumps out excess water and wastes?
Answer:
The contractile vacuole pumps out excess water and wastes.
Cells have a particular organelle that pumps out excess water and other wastes from the cell. Contractile vacuole serves this purpose.
The protozoan cell contains an organelle or subcellular structure called the Contractile Vacuole. It is a spherical, transparent, translucent, pulsating single-cell organelle. Previously, it was referred to as a pulsatile or pulsating vacuole. It is encased in a unit membrane, floats in the cytoplasm, and is filled with watery fluid. It is a vacuole that constricts and expels water from the cell, as its name suggests. It frequently stretches and shrinks. While water is expelled from the contractile vacuole as it expands, the contractile vacuole contracts, causing water to collect inside the organelle. The contractile vacuole is the protozoan unicellular organism's kidney. It shows the rhythmic systolic and diastolic movements.
Therefore, Contractile vacuole pumps out excess water & wastes.
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Help Fusion book pg 126 & 127.
Which term describes an animal that only eats plants?
A. producer
B. decomposer
C. primary consumer
D. secondary consumer
Answer:
c
Explanation:
The primary consumers are herbivores (vegetarians). The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers.
Which phase occurs directly after G2?
A. S phase
B. G1
C. Cytokinesis
D. M phase
Answer:
The phase which occurs after G2 of the cell life cycle is the M phase, also known as Mitotic or Meiotic phase.
An electromagnet is different from an iron magnet because ________________.
A. it is created by an electric current
B. it can also be plugged in to run a toaster
C. it will require a battery pack to charge it
D. it is always painted blue
Answer:
A
Explanation:
Electromagnet is an electrical component that when powered emits a magnetic field based on the amount of current provided. this is the same principal that runs induction motors
For which method of determining population size is the population not aware of the sampler’s presence?
a. mark/recapture
b. direct observation
c. sampling
d. indirect observation
Answer:
The method of determining population size is the population not aware of the sampler’s presence is indirect observation.
D
The method in which the population is not aware of the sampler's presence is indirect observation (Option d).
Indirect observation refers to the collection of information obtained by other researchers in order to record it in specific informative materials (e.g., books, review/research papers, videos, etc.).
An example of indirect observation can be the record in a book of specific animal behaviors (e.g., the presence of marks on the ground).
In conclusion, the method in which the population is not aware of the sampler's presence is indirect observation (Option d).
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Sort each plant into the correct category. horsetail Nonvascular plants Seedless vascular plants club moss fern moss liverwort hornwort
Answer:this is the correct answer
Explanation:
What is the amplitude of this wave?
Answer:
B) 3
Explanation:
Answer:
b)3
Explanation:
Mitosis is responsible for growth, repair, and maintenance in an organism because
a. it occurs at a faster rate than meiosis.
b. the chromosome number is reduced by half.
c. exact duplicates of each mother cell are produced.
d. it is the only process that involves replication of genetic material.
Answer:C
Explanation:
Beacause if it didn't make exact copies they could make the body function differently
The amount of kinetic energy an object has depends on which feature of the object?
O its motion
O its position
its gravity
O its height
Answer:
A. Motion......
The amount of kinetic energy an object has depends on its motion.
WHAT IS KINETIC ENERGY?Kinetic energy is the energy of an object that is due to its motion.
The kinetic energy of an object is denoted by the following expression:
K.E = ½ × mass × velocity.Therefore, this shows that amount of kinetic energy an object has depends on the motion of the object.
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(GIVING BRAINLIEST!!!)
How does the atmospheric temperature and size of inner planets compare with those of outer planets?
A) The inner planets are colder and relatively larger than outer planets.
B) The inner planets are colder and relatively smaller in size when compared to outer
planets.
C) The inner planets are hotter and relatively larger in size when compared to outer planets.
D) The inner planets are hotter and relatively smaller than outer planets.
Answer:
The answer is D
Explanation:
Right on edge
fossil record in whales
Answer:
Cool. Did you know I bathed my fish today
Answer:
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What organic molecules can be found in protein, oxygen, and fat?
Answer:
Lipids are organic compounds that consist of carbon, hydrogen, and oxygen. They are made up of fatty acids and other compounds. They provide cells with energy, store energy, and help form cell membranes. Proteins are organic compounds that consist of carbon, hydrogen, oxygen, nitrogen, and, in some cases, sulfur.
Explanation:
Identify the statement below that is NOT a principle of evolution.
O Populations evolve, individuals do not
O Negative adaptations will become more common in a population
O Variations occur naturally within a population
O Adaptations help individuals compete successfully for survival
B) negative adaptations will become more common in a population
negative adaptations will become more common in a population.
What is Evolution?According to the idea of evolution in biology, the many species of plants, animals, and other living things on Earth descended from earlier species, and their recognizable differences are the result of changes made by subsequent generations.
More than 2 million species of organisms already in existence have been recognized and documented; many more are still undiscovered, with estimates ranging from 10 million to 30 million.
The amazing variability in size, form, and mode of existence, from tiny bacteria with a diameter of less than a millionth of a millimeter to majestic sequoias with a height of 100 meters, is as astonishing as the figures.
Therefore, negative adaptations will become more common in a population.
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WILL MARK BRAINLIEST!! HELP ME PLS I DON'T GET THIS
What is the genotype and phenotype ratio for this cross?
Answer:
Genotype ratio Tt:tt=1:1
Phenotype ratio 1:1
Explanation:
the phenotype ratio should be 1:1 since there are 2 individuals with the dominant allele and 2 without it
The genotype ratio should be 1:1 for the same reason
What is the male portion of a zygote referred to.
1. sperm cell
2. egg cell
Answer:
egg cell is the correct answer
Invasive species are destructive to an ecosystem because they____________(Select best answer).
disrupt food chains
take or destroy ecological niches
out compete native species for limited resources
all of the above
The answer is all above.
What are two benefits that a company can achieve by operating its business in an environmentally sustainable way?
Answer:
Two benefits a company can achieve by operating in an environmentally sustainable way are making money from the resources which are naturally produced by nature and be able to utilize resources seasonally due to the ability of the environment to replenish.
What organlle does cellular respritation take place in
Aerobic cellular respiration takes place in the mitochondria.
Where krebs cycle and oxydative phosphorilation occur.