Answer:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. ... That is why cells are so small.
Explanation:
If the cell expands beyond a certain size, not enough material can cross the membrane quickly enough to accommodate the increased cellular volume.
What is surface area-to-mass ratio?The surface area to volume ratio is simply the surface area divided by the volume of an object. It expresses the proportion of surface area per unit volume of an object, such as a sphere or cylinder.
Smaller single-celled organisms have a high surface area to volume ratio, allowing them to survive by diffusing oxygen and material into the cell and waste out.
The greater the surface area to volume ratio, the more efficient this process can be.
Smaller cells have a much higher surface area to volume ratio, allowing material to diffuse quickly and efficiently throughout the entire volume of the cell.
Thus, the surface area to mass ratio will be smaller as a cell grow larger.
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During _________, the chromosomes line up along the equatorial plate.
Answer:
During METAPHASE the chromosomes line up along the equatorial plate.
The answer is metaphase II
9th grade biology. 10 pts
photo provided -
Green plants capture and store light energy from the Sun through the process of-
a) cell division
b) respiration
c) homeostasis
d) photosynthesis
Answer:
D photosynthesis
Explanation:
photosynthesis is what make the plant green
Explain the three events in sexual reproduction that contribute to genetic variation in a population.
The variety in DNA sequence seen in each of our genomes is referred to as genetic variation.
What is Genetic Variation?
We are all different from one another in terms of our hair color, complexion tone, and even the form of our features due to genetic variance.
The role of genetic diversity in evolution is crucial. Genetic variety that is passed down from one generation to the next is what drives evolution. Favorable traits are "selected" for, persist, and are transmitted. Natural selection is what causes this.
Mutations are adjustments made to the genetic code. (For the majority of life, this entails a change in the DNA sequence.) A single mutation can have a significant impact, but evolutionary change frequently results via the accumulation of many small-impact mutations.
Therefore, The variety in DNA sequence seen in each of our genomes is referred to as genetic variation.
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Transcription occurs in the _______, while translation occurs in the _______.
Answer:
Explanation:
In a eukaryotic cell, almost all transcription occurs in the nucleus and translation occurs mainly at ribosomes in the cytoplasm. In addition, before the primary transcript can leave the nucleus it is modified in various ways during RNA processing before the finished mRNA is exported to the cytoplasm.
17 Some Birds with shorter beaks enter into a population of birds with much
longer beaks, resulting in the hatching of birds with in-between sized beaks.
Which No evolutionary mechanism are most likely responsible for this
scenario
A mutation and genetic drift
B natural selection and artificial selection
C gene flow and recombination of genes
D artificial selection and crossing over during melosis
The evolutionary mechanism that are most likely responsible for this scenario is:
C gene flow and recombination of genesAccording to the given question, some birds are said to have shorter beaks and when they mate with birds that have longer beaks, they produce offspring that have in-between size beaks.
The evolutionary mechanism that is in charge of this phenomenon is simply gene flow and recombination of genes. This is because there is a combination of genes from the parents and given to the offspring.
The shorter beaks and the longer beaks of the parents combined and the offspring got in-between beaks.
Therefore, the correct answer is option C
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what is vegetative propagation
Answer:
Explanation:
methods produce new plants from vegetative parts of the original plant, such as the leaves, stems and roots. These
Answer:
Vegetative reproduction is any form of asexual reproduction in plants specifically their leaves, roots and stems. In this process, a new plant grows from a fragment of the parent plant or a specialized reproductive structure. Many plants naturally reproduce this way, however it can also be completed artificially.
70 points! b) How do scientists make a person's genes fluoresce? (2 points)
In general, how do many human activities influence the carbon cycle?
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
Explanation:
Carbon moves from the atmosphere to plants. ...
Carbon moves from plants to animals. ...
Carbon moves from plants and animals to soils. ...
Carbon moves from living things to the atmosphere. ...
Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...
Carbon moves from the atmosphere to the oceans.
Uncontrolled cell division is characteristic
Answer:
Uncontrolled cell division is often, but not always, a characteristic of cancer.
Explanation:
Answer:
Uncontrolled cell division is a characteristic of tumors/cancer.
Which is an example of a parasite and host relationship? A) a chlorophyll and a green plant B) a wolf and a rabbit C) a tapeworm and a human D)sunlight and green plants
Answer:
C) a tapeworm and a human
Explanation:
A parasitic relationship is defined as the relationship between two organisms in which one organism called parasite fed over other organism called host and parasite get benefits while the host get harmed.
From the given options, relationship between a tapeworm and a human is a parasitic relationship because a tapeworm act as a parasite in human body. Parasite gain food or nourishment while human body loses its nourishment.
Hence, the correct answer is "C) a tapeworm and a human".
Answer:
C: A tapeworm and a human
Explanation:
C is the correct answer
The processes that transform inputs to outputs are what part of a system?
A. the surroundings
B. the components
C. the flow
D. the boundary
Answer:
(C) The flow
Explanation:
The processes that transform inputs into outputs are the flow part of the system that is presented in Option C, as the flow determines the efficiency and effectiveness of the system.
What is the significance of the flow in the system?The flow in the system has many implications, such as how it transforms inputs into outputs and it is a crucial part of a system, and it explains how the inputs are transformed and the output for the respective inputs. The flow affects the system's overall performance and helps manage the outcomes of the system by achieving its desired roles or functions.
Hence, the processes that transform inputs into outputs are the flow part of the system that is presented in Option C, as the flow determines the efficiency and effectiveness of the system.
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What is one question that you have about genetics?
what's the name of the Era were dinosaurs reign is called?
Answer:
the mesozoica era
Explanation:
all 3 arw the triassic.jurassic and creataceous periods
Answer: Mesozoic Era
Explanation:
Bounded by the end-Permian and KT extinction events.
Snow falling from the clouds has
potential energy
kinetic energy
Answer:
Kinetic Energy
Explanation:
As a cell grows larger, the surface area of the cell increases much more rapidly than the volume of the cell.
True or false?
Answer:
true
Explanation:
As a cell grows bigger, its internal volume enlarges and the cell membrane expands.
A mature plant cell is different from a mature animal cell because the plant cell has?
Answer:
large central vacuole
Explanation:
mature plant cell contains large vacuoles while a animal cell has small vacuoles
A mature animal cell is different from a mature plant cell because of the plant cell has differentiation ability.
Mature plant cell can still divide and differentiate to produce a complete new plant.
The mature animal cells cannot differentiate into the other cells to produce all the different cells that can form a complete animal.
Therefore, A mature animal cell is different from a mature plant cell because of the plant cell has differentiation ability.
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Explain the changes
3 marks
Answer:
The correct answer is - increase in the number during this period in the lake which suggests there are plenty of resources during this period required for the growth of the algae.
Explanation:
In the given graphical representation, there is a continuous increase in the number of algae present in the lake during the period of time between February to June. There is some fluctuation found in mid-April and early June but it is negligible.
This continuous increase in the number of algae suggests that during this period the resources are in abundance that affects the growth of the alage.
Which product of photosynthesis is the most vital to other organisms?
When Mendel crossed the P
(parent) generation, what did
he call the generation
produced by the P
generation?
re
A. P2
B. F1
C. F2
Answer:
B. F1
Explanation:
Plants used in first-generation crosses were called P, or parental generation, plants (Figure 8.3). Mendel collected the seeds produced by the P plants that resulted from each cross and grew them the following season. These offspring were called the F1, or the first filial (filial = daughter or son), generation.
the parathyroid _____ blood calcium by taking the calcium from the _____
Answer:
Parathyroid hormone is secreted by the parathyroid glands and is the most important regulator of blood calcium levels.
The parathyroid maintains blood calcium by taking the calcium from the bones.
What is the parathyroid gland?The body requires exact calcium levels since even tiny variations can lead to problems with muscles and nerves. The following processes are stimulated by the parathyroid hormone: bones' release of calcium into the blood. The intestines' absorption of calcium from meals.
The thyroid glands create the parathyroid hormone, which aids in preserving the appropriate level of calcium in the blood and in tissues that require calcium for optimal function.
This is particularly crucial for bone health as well as nerve and muscle function. The bones, kidneys, and small intestine are directly impacted by the parathyroid hormone.
PTH increases the release of calcium from the bones in an indirect manner through osteoclasts, which eventually results in bone resorption.
Therefore, parathyroid maintains blood calcium by taking the calcium from the bones.
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What happens when a low air pressure system meets a high air pressure system? (2 points)
Group of answer choices
The temperature of the air drops to below freezing.
The air moves to the low pressure system, creating wind.
The precipitation is removed from the air.
The air starts blowing in an easterly direction.
Answer:
the air moves to the low pressure system creating wind
Explanation:
Answer: B
Explanation:
(GIVING BRAINLIEST!!)
What type of moisture does Colder air hold than hotter air?
Answer:
An oft-repeated water vapor myth is that warm air can “hold” more water vapor than cool air because as the air warms its molecules move farther apart, making room for more molecules.
Explanation:
:)
What type of cell is created by the process of meiosis
A. tumor cells
B. platelets
C. gametes
D. stem cells
Answer:
C
Explanation:
gametes
Definition of infrared?
Answer:
noun
1.
the part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic radiation of wavelengths from 800 nanometers to 1 millimeter.
adjective
2.
noting or pertaining to the infrared or its component rays:
infrared radiation.
Explanation:
got it from dictionary.com
What are the sex chromosomes? Explain how it is shown in male and female; and karyotyping
Answer:
Females have two X chromosomes, while males have one X and one Y chromosome. A picture of all 46 chromosomes in their pairs is called a karyotype. A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.
Explanation:
Sex chromosomes are chromosomes which are responsible for sex determination. These are the X and Y chromosomes. Females have two X chromosomes and males have one X and one Y chromosome in their sex cells/gametes. Karyotyping is the visualization of chromosomes after blocking the cells in mitosis and staining; this allows us to identify the size, shape, and number of chromosomes present in cells, which is significant because extra, missing, or abnormal chromosomes can cause developmental problems or issues with body functions.
Play‘s the steps for the formation of enzyme pepsin the pepisnogen in the correct order
Answer:
The DNA strands unwind, and RNA polymerase binds to the template strand.
The synthesis of mRNA begins.
The mRNA undergoes intron splicing and exits the nucleus.
The tRNA moves through mRNA with the activated amino acids. attached to it.
The amino acids assemble.
Explanation:
there
Give an example of a dry climate.
Answer:
the driest climate is the Atacama Desert in Norther Chile !
Explanation:
how do the molecular components in carbohydrates compare to the molecular components in amino acids?
Answer:
I'm in the stars tonight so watch me be the fire and light the
The "how do atmospheric conditions influence weather patterns" lab report pleaseee
Changes in atmospheric pressure signal shifts in the weather. A high-pressure system usually brings cool temperatures and clear skies. A low-pressure system can bring warmer weather, storms, and rain. Meteorologists express atmospheric pressure in a unit of measurement called an atmosphere.
Answer:
im trying to find it too bro.
Explanation: