Explain why the population of girls are more than that of boys in terms of variation.
Answer:
females have 2X chromosomes but males have one 1Y and 1X chromosome therefore if the male donates the x chromosome the baby will be a girl
Select the correct answer from each drop-down menu. what type of population monitoring method will be best for monitoring the species listed? is an appropriate method to monitor a population of swallows, while is an appropriate method to monitor a population of tortoises.
The right approaches to population monitoring methods of swallows and tortoises are point counts and line-transect distance sampling, respectively.
For point counts, In order to collect the data required to meet the current study's objectives, one must use field techniques methods for selection, counting, capturing, observing, measuring, and marking individuals chosen from the targeted population.To count or keep track of the birds of the air, point counts are a frequent field technique (birds). The practice involves making observations over a predetermined, set amount of time and keeping track of the number of birds coming from a specific location.While the line-transect distance sampling methods in the field are useful for keeping track of the number of tortoises and is appropriate for controlling and tracking the population.learn more about population monitoring methods here: https://brainly.com/question/12682497
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What is a scientific theory? Choose the best answer.
Select one:
An explanation that's thought up by a scientist
An explanation that's popular among the public
An explanation that makes a lot of sense.
An explanation that is backed up by evidence.
Answer:
an explanation that is backed up by evidence
Answer:
An explanation that is backed up by evidence.
Explanation:
volume and pressure inside the left ventricle at the end of diastole is referred to as:
The volume and pressure inside the left ventricle at the end of diastole is referred to as end-diastolic volume and end-diastolic pressure respectively.
What is a diastole?A diastole is the part of the heartbeat cycle when the heart muscle relaxes and allows the heart chambers to fill with blood.
The volume inside the left ventricle at the end of diastole is referred to as end-diastolic volume.
The pressure inside the left ventricle at the end of diastole is referred to as end-diastolic pressure.
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Question 5: How would you describe the effect of a 1°C increase of temperature on the biodiversity of the habitat in terms of number of populations and number of individuals in the populations? Use evidence from your graph and table to support your answer.
1°C increase of temperature can effect the biodiversity of the habitat in terms of number of populations and number of individuals in the population, it can either increase or decrease the population growth.
1°C increase in temperature on biodiversity can increase or decrease the population growth.
Population growth or change in number of individuals in the population of some organisms increases or decreases with the increase in temperature. The population of certain species such as Nassuar grouperand, Queen angelfish increases with the increase in temperature while some species such as sponges and algae decreased in population with the increases in temperature. This is because some species need high temperature to grow, so even a 1°C increase in temperature increases the population while some species need low temperature to grow, so high temperature kills them and population is decreased.
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What does the term angiosperm literally mean?
A. seed leaf
B. enclosed seed
C. open seed
D. seed cone
Answer:
Angiosperm. n., plural: angiosperms. [ˈændʒɪəˌspɜːm] A flowering, fruit-bearing plant or tree known for having ovules (and therefore seeds) develop within an enclosed ovary.
Answer: B. Enclosed seed
Explanation:
Explain how the moon causes high and low tides.
What is the immune system response to malaria?
Outline the 3 lines of defence of the immune system.
Answer:
Although the evidence for a protective role of B cells and antibodies has been noted, the direct contribution of CD4+ T cells in protection against blood stages beyond a helper function for CD4+ T cells has mainly derived from rodent models of malaria.
How many layers of tissue does an artery have?
The Artery contains three layers of tissue; Intima, media and adventitia.
The artery plays a vital role in the body; the artery carries blood away from the heart. This blood vessel carries blood away from the heart to important organs and tissues in the body.
There are there types of arteries; Elastic arteries, muscular arteries and Arterioles
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Would you expect the plastid DNA of photosynthetic dinoflagellates, diatoms, and golden algae to be more similar to the nuclear DNA of plants (domain Eukarya) or to the chromosomal DNA of cyanobacteria (domain Bacteria)? Explain.
Retell the story of how the moon formed. integrate as many of the moon's features into the story as possible.
The moon formed due to the collision of earth and other small planet.
How the moon formed?The Moon formed during a collision between the Earth and another small planet about the size of Mars. Due to this collision, the debris from this collision was collected in an orbit around Earth which leads to the formation of the Moon.
So we can conclude that the moon formed due to the collision of earth and other small planet.
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Question 5 of 25
Which of these is an abiotic factor in an aquatic ecosystem?
A. Whales
B. Seaweed
C. Sea stars
D. Water
Answer:
d - water
Explanation:
an abiotic factor in any ecosystem is non living
the only non living thing in this ecosystem that is listed is water
so water is the answer
Answer:
[tex]\huge\boxed{\sf Water}[/tex]
Explanation:
Abiotic factors:The factors of an ecosystem which are non-living are called the abiotic factors of the ecosystem.In the given list:
Whales are living.Seaweed is living.Sea stars are living.Water is non-living.So, Water is an abiotic factor of an aquatic ecosystem.
[tex]\rule[225]{225}{2}[/tex]
A housewife used excessive amount of sodium nitrate and phosphate fertiliser to her tree,
after 3 days, she found her tree had withered and died.
Answer:
excessive amount of fertiliser can cause high amount of acidic medium to the plant which can lead to death of many microbes necessary for the plant to survive.
there are a certain conditions in which the plants can survive, any change to that or Amy change in habitat will lead the plants to died
Which of the following steps is important to critical thinking?
a. implementing solutions
b. utilizing facts
c. holding firm to conclusions
d.answering questions
The origins of the lateral head of the gastrocnemius muscle are the __________.
The origins of the lateral head of the gastrocnemius muscle are the lateral condyle and posterior surface of the femur.
What is a gastrocnemius muscle?A gastrocnemius muscle is also referred to as leg triceps and it can be defined as the largest, posterior, and most superficial muscle of the calf of the human leg, which enables the flexing of the knee and foot because it runs to the Achilles tendon from two lateral heads that are attached to the femur.
In this context, we can infer and logically deduce that the lateral condyle and posterior surface of the femur are the origins of the lateral head of the gastrocnemius muscle.
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which cellular component of our body are involved in developing infection
Answer:
the white blood cells or leucocytes
a newborn has just been given an inoculation and cries. variations in crying from one infant to another correlate with temperament and thus confirm that temperament:
The variations in crying from one infant to another correlate with temperament and thus confirm that temperament varies from one individual to another.
What is Temperament?Temperament refers to differences that exists in individuals due the pattern of emotional responses to their environment.
I'm psychology, temperament is believed to have a genetic basis.
Temperament varies between individuals.
The variations in crying from one infant to another correlate with temperament and thus confirm that temperament varies from one individual to another.
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When a red onion cell is placed in a 5% NaCl solution, the central vacuole will occupy
A) even more of the cell than when it was in water
B) less of the cell than when it was in water
C) the same amount of the cell as when it was in water
Answer:
A=even more of the cell than when it was in water
Answer:
When a red onion cell is placed in a 5% NaCl solution, the central vacuole will occupy
B) less of the cell than when it was in water
This is due to plasmolysis
Explanation:
What is plasmolysis?Plasmolysis is the process in which there is a loss of water from cells when these are placed in a hypertonic solution. The protoplast and vacuole shrinks away from the cell wall.
What is a hypertonic solution?Hypertonic solution is that which has higher concentration of solutes (low water concentration) as compared to inside the cell. As water moves from high conc. to low conc., it moves from inside the cell to outside. Thus, the vacuole pulls away from the cell when placed in a hypertonic solution (5% NaCl).
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Which+oxygen+delivery+system+most+reliably+delivers+a+high+(90%+or+greater)+concentration+of+inspired+oxygen+to+a+7-year-old+child?
The oxygen delivery system that most reliably delivers a high (90% or greater) concentration of inspired oxygen to a 7-year-old child is Nonrebreathing face mask.
What is oxygen delivery system?Oxygen delivery system refer to a system that is use to pass oxygen to a patient which cannot breath on his own.
Therefore, The oxygen delivery system that most reliably delivers a high (90% or greater) concentration of inspired oxygen to a 7-year-old child is Nonrebreathing face mask.
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Haploid and diploid are terms that represent the ______ of an organism.
Haploid and diploid are terms that represent the sets of the chromosome of an organism.
What do you mean by chromosomes?The thread-like components known as chromosomes are found in the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA).
When an organism's cells only have one set of chromosomes, the organism is said to be a haploid. All organisms that reproduce sexually are diploid (having two sets of chromosomes, one from each parent). Only the egg and sperm cells in humans are haploid.
The number of chromosomes found inside a cell's nucleus is known as the diploid chromosomal number. The symbol for this number is 2n. Each organism has a different one. In contrast to sex cells, somatic cells are diploid.
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Glucose provides energy for cells. Different cells have different mechanisms for glucose intake. Intestinal cells contain proteins that transport glucose against its concentration gradient. These proteins couple the movement of glucose to the movement of sodium down its concentration gradient. Red blood cells have transporter proteins embedded in their membranes. When bound by a glucose molecule, these proteins change shape and allow glucose to move down its concentration gradient into the cell.
Based on this information, what type of transport is used for glucose in blood and intestinal cells?
A.
Both blood and intestinal cells take in glucose by passive transport.
B.
Blood cells take in glucose by active transport and intestinal cells take in glucose by passive transport.
C.
Blood cells take in glucose by passive transport and intestinal cells take in glucose by active transport.
D.
Both blood and intestinal cells take in glucose by active transport.
Both blood and intestinal cells take in glucose by passive transport. Thus, the correct option is B.
What is facilitated diffusion?A transport protein found in the plasma membrane facilitates diffusion, which is the passive movement of things like biological molecules or ions across a plasma membrane. Chemical energy is neither utilized nor required because compounds are moved from higher to lower concentrations.
Glucose is absorbed by the mechanisms of facilitated diffusion or passive transport across the membrane of red blood cells. The sugar glucose is transferred by active transport from the gut into intestinal epithelial cells.
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which is s true for both photosynthesis and cellular respiration
State two examples of each plant cell and animal cell
Answer:
(a)root hair cell and palisade cell
(b)Blood cell and Tissue cell
Which of the following abiotic factors might have an effect on how much photosynthesis can occur by the producers in an ecosystem?
The temperature in the environment.
The temperature in the environment.
The water quality in the environment.
The water quality in the environment.
The air quality in the environment.
The air quality in the environment.
All of the above can affect photosynthesis.
Abiotic factors such as temperature, water quality, air quality, soil quality, and sunlight efficiency affect the rate of photosynthesis. Thus, the correct option is D, i.e. All of the above can affect photosynthesis.
What is Photosynthesis?Photosynthesis may be defined as a process through which green plants synthesized their own food (glucose) via carbon dioxide and water in the presence of sunlight.
The rate of photosynthesis primarily depends on the numerous abiotic factors which are present in a particular environment.
For example, Desert plants accomplish photosynthesis by the CAM pathway, which requires less water as compared to rainforest plants.
The maximum rate of photosynthesis occurs in the region of photosynthetically active radiation (PAR), which belongs to the wavelength of 400nm-700nm.
Therefore, it is well described above.
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Explain why the plant with the mutated psaB gene was dying
As given in the graph, mutation in this gene causes a decline in the production of glucose as it obstruct the process of photosynthesis.
What is psaB gene?P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1, and FX, are bound by PsaA and PsaB.
As given in the graph, mutation in this gene causes a decline in the production of glucose as it obstruct the process of photosynthesis.
Thus, the plant with the mutated psaB gene was dying.
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Drag the tiles to the correct boxes to complete the pairs.
Match the factors affecting genetic diversity with the examples.
m. All rights reserved.
habitat fragmentation
pollution
exploitation
sewage from cities dumped into vers
sections of large forests cut down for resources
Burmese pythons Infesting the Everglades
rhinos Indiscriminately killed for their horns
▶ O GE
invasive species
101
N
Factors that affect genetic diversity are:
sewage from cities dumped in vers - pollutionsections of large forests cut by resources - habitat fragmentationBurmese pythons infesting the Everglades - invasive speciesrhinos indiscriminately killed by their horns - explorationWhat is genetic diversity of an example?
The diversity of alleles of individuals of the same species is what we call genetic variability.
Haireyeskin colorheight and voice,for example, are characteristics present in human beings that make us quickly understand that we have phenotypic variations in relation to others.
With this information, we can conclude that Factors that affect genetic diversity are: sewage from cities dumped in vers - pollution, sections of large forests cut by resources - habitat fragmentation, Burmese pythons infesting the Everglades - invasive species, rhinos indiscriminately killed by their horns - exploration
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1. What are the independent and dependent variables in each of the experiments?
2. What information should be added to the diagram to give the reader a better understanding of how these experiments
were conducted?
3. What items should have been CONTROLLED in the experiments?
4. How much confidence would you have in the conclusion of experiment 3 if you found out that the temperature was not
controlled? Explain your reasoning.
5. Create your own flow chart to answer a causal question.
When possible, scientists take a look at their hypotheses through the use of managed experiments. A managed test is a systematic take look at executed below-managed conditions, which means that simply one (or a few) elements are modified at a time, even as all others are saved consistently. We'll appear carefully at managed experiments within side the subsequent section.
In the three experiments, the dependent variable is evaporation, as it changes with the change in another variable.The independent variable in experiment 1 is temperature, experiment 2 is airflow, and experiment 3 is light.
The experiment can be understood better with the representation of the schematic that shows the setup to analyze how the experiment was performed. Therefore the diagram must add the schematic of the experiment.The controlled items in the experiment are the variables that are set at the particular unit to form the result. the controlled item in experiment 1 is temperature, experiment 2 is airflow from the fan, and experiment 3 is the intensity of light.The result of experiment 3 is based on the dependence on the intensity of light keeping temperature constant and controlled. If the temperature is not controlled in the experiment then it may lead to an alteration in the results as it depends on both light and temperature.The flow chart for the increase in pressure affecting the evaporation is given in the image attached.Read more about variables :
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stabilizing selection results in _____________ genetic diversity in a population.
a. more
b. less
‼️URGENT‼️
I really need help with this one problem
Answer:
C.
Explanation:
A. This makes no sense because the chart is only about the number of fish not about the number of plants that have grown
B. Makes no sense???
C. This is correct because it provides a reason why the number of fish in the stream next to the orchard have decreased
D. Makes no sense as well
research on the trait perspective on leadership in groups shows that:
Research on the trait perspective on leadership in groups shows that leaders are not born but develop.
What are genetic-environment trait relationships?Genetic-environment relationships makes reference to the contribution of genetic and environmental factors to a given trait.
Complex behavioral traits such as leadership are shaped by environmental factors.
In conclusion, research on the trait perspective on leadership in groups shows that leaders are not born but develop.
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