Can iron-deficiency provide natural immunity against parasites?
The diagram below shows a cross section of a plant leaf. How does the structure marked X
contribute to the survival of the plant?
Answer:
The diagram below shows a cross section of a plant leaf. How does the structure marked X contribute to the survival of the plant? It allows the intake of gases necessary for photosynth
Plants may control the quantity of water and solutes they contain by using guard cells, which use osmotic pressure to open and close stomata. Thus, option A is correct.
What is the major function of guard cell in photosynthesis?Guard cells adjust the efficiency of leaf gas exchange in response to shifting environmental factors, and changes in atmospheric CO2 concentration, light intensity, humidity, and the drought hormone abscisic acid regulate their turgor.
Stomata, which are pores in the plant epidermis, serve as passageways connecting the intercellular gas spaces to the outside world.
Each stomatal hole is surrounded by two guard cells, and variations in the turgor pressure of the guard cells control the pore aperture size.
Therefore, it allows the intake of gases necessary for photosynthesis.
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Where are the tectonic plates located on Earth?
Answer:
it lies in Earth’s outermost layer or lithosphere.
Coyotes are opportunistic predators that are found throughout most of North America. They typically feed on small mammals, insects, and fruits and vegetables. They are known for their dietary adaptability. The best description of their role in the food web would be.
Answer:
omnivore
Explanation:
they eat both plants and animals/insects.
rabbits
green plants
The amount of energy at each trophic level in an ecosystem decreases as it moves through the ecosystem. Typically, only
the energy at one trophic level is transferred to the next level. The remaining energy is lost through metabolic processes
Suppose that, in the ecosystem modeled above, 150,000 kcal (kilocalories) of energy are contained within green plants. A
amount of energy transferred from one trophic level to the next is exactly 10 percent, determine the following amounts
ecosystem.
kcal of energy will be transferred from green plants to rabbits.
kcal of energy will be transferred from rabbits to weasels.
kcal of energy will be transferred from weasels to eagles.
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Answer:
a. 15000
b. 1500
c. 150
Explanation:
Each organism passes on only 10% of their energy to the next one.
The period of the cell cycle during which a cell grows in size and carries out metabolism is known as ______.
A. cell growth
B. cell division
C. cell reproduction
D. cell death
cell growth
hope it helps...!!!
The appearances of this insect population are most likely because of
A. genetic disease
B. environmental change
C. mutation
D. overpopulation
I'm stuck between environmental change and mutation, but inclined to say environmental change.
Answer:
b
Explanation:
your answer b is good and smart
A ______ or cave is a natural underground space large enough for a human to enter. These openings form naturally by the weathering of rock and can extend deep underground.
A) Cavern
B) valley
C) canyon
D) sink hole
Answer:
Cavern is the answer
option A
Answer:
A) Cavern
Explanation:
A cavern is essentially the same thing as a cave, but are typically large and deep and formed by the weathering of the rocks around it.
Moderate fires play an important role in western pine forests. Which of the following statements is NOT one of those roles?
A. They release carbon and other nutrients into the soil to be recycled.
B. They remove the debris and low-lying branches of the pine forests.
C. They destroy all the seed banks in the upper layers of the soil.
D. They create open grassy areas for large herbivores, such as elk, deer, bison, and moose.
''They create open grassy areas for large herbivores, such as elk, deer, bison, and moose.'' is not the role of moderate fires.
What is the role of moderate fires?Moderate fires have positive effects on forest such as the fire removes vegetation as well as recycles nutrients back into the soil. It also remove seeds of many weeds plant.
So we can conclude that option D is the right answer.
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Which part of the brain helps you learn new things in gym class?
Answer:
Hippocampus
Explanation:
The part of the brain that responds strongly to aerobic exercise is the hippocampus. It supports memory, learning, navigation and perception of space.
BRAINLIESST please if this helped!Which of the following factors determines how harmful an introduced chemical will be on the environment?
a type of chemical
b. concentration
C. weather conditions
d. all of the above
Please select the best answer from the choices provided
Ο Α
ОВ
ОС
OD
Save and Exit
Submit
Mark this and retum
Answer: The answer is Type of chemical, concentration, and weater conditions so the answer Is D! Trust me D is the answer 100%.
One of the muscles’ three primary functions in the body is to convert stored in the body.
Answer: Energy is the answer, trust me.
An agricultural manager position
requires all of the following
EXCEPT which one?
A. Experience in active seasonal farming
B. Classroom knowledge on agricultural topics
C. The ability to understand government grant
programs
D. Success and wealth in business and
investments
Answer:
D. Success and wealth in buisness and investments.
Explanation:
The Australian giant burrowing cockroach (Macropanesthia rhinoceros) is the heaviest cockroach in the world. You are the leading expert on the genetics of this species and are working to domesticate them for food production. Your starting population (G0) has a mean body mass of 30 g and variance of 0.674 g2. You select the largest roaches from this population to breed the next generation (G1). The selected breeders have a mean body mass of 32.4 g and a variance of 0.215 g2. If the narrow sense heritability (h2) of body mass in your cockroaches is 0.35, what will be the expected mean body mass of the G1 population? Round your answer to 2 decimal places.
For an Australian giant burrowing cockroach is the heaviest cockroach in the world, the expected mean is mathematically given as
M= 31.56g
What will be the expected mean body mass of the G1 population?
Generally, the equation for the Narrow sense heritability is mathematically given as
h^2=R/S
Where
S= Selection differential
R= Selection response
R = M-30
S = (32.4-30)
S= 2.4g
In conclusion
(h^2) = R/S
h^2= 0.65
h^2= (M-30)/2.4
Hence
M = (30+1.56)
M= 31.56g
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During the day, an area of high / low air pressure forms over water and a sea / land breeze occurs
Answer:
Explanation:
The specific heat of water is more than that of sand, thus air above land becomes hot quickly and rises up. The cold air above water then move towards land. This is called sea breeze.
A high air pressure area forms on the water during the day, resulting in the sea breeze. The sea breeze is when the wind flows from the sea towards the land during the day.
What is a sea breeze?
During this time, the earth receives sunlight, which raises the temperature of the atmosphere. Between the sea and the land, the land gets hotter in less time than the water by the sun's light, and this is because the water has a high heat capacity.
The water needs a lot of energy to raise the temperature, and this is due to the water's high specific heat, but in comparison to water, the land has a low specific heat, so it gets warmer quickly. As a result, the air present on the land gets lighter and goes up. As a result, cooler air flows from the sea to the land, causing the sea breeze.
As a result, during the day, a high air pressure area forms over the water, resulting in a sea breeze.
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Normal diastolic pressure for a healthy adult falls between
A. 80 and 90
B. 90 and 120
C. 120 and 130
D. 60 and 80
Answer:
D
Explanation:
Less than 80 is an ideal diastolic pressure more is unhealthy and dangerous.
In Texas, paddlefish are
O stocked in the Pecos River
O a sport fish
O an endangered species
O all of the above
Answer:
The answer is an endangered species.
Explanation:
Paddlefish are now listed as a Texas threatened species and it is illegal to catch, kill, or harm a paddlefish in the state’s waters.
How is a Hepatitis C infection different from cirrhosis?
Answer:
The connection between cirrhosis and hepatitis C. Hepatitis C and cirrhosis of the liver are medical conditions that can damage and inflame the liver. Hepatitis C is a viral illness, while cirrhosis is scarring of the liver that can occur due to hepatitis C and other medical conditions.
Explanation:
hope this helps
5th grade pls help
How might a machine help you do
work? 
Earth’s species have been adapting for over 4 billion years.
A. True
B. False
Answer:
A.true
Explanation:
"""During their 150 million year existence, animals changed drastically in size, body, shape, and flying ability. a modification of an organism or its parts that makes it more fit for existence."""
Answer:
Hi, I’m here to help you!➡ False.
Explanation:
Species did not even exist because over 4 billion years ago, asteroids, water molecules, and major parts of Earth's crust formed then.
What is the purpose of a fungal spore?
A) to develop into hyphae
B) to produce digestive enzymes
C) to make up the body of fungi
D) to divide a cell into tiny cells
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The Correct choice is A
The fungal spores are buds that are pinched off a hyphae of a fungi and after spreading and getting favorable conditions, it develops into a hyphae ~
what is data? what is it used for
Answer: hope it helps you .
Explanation:
When fluid is taken in by the body to return homeostasis, the kidneys return enough solute-free water from the fluid to dilute sodium levels back to normal. True or False
Answer:
That Is False
Explanation:
Im a teacher :)
DONT CHEAT IF YOUR IN MR.GREENFIELDS CLASS!
Organisms have all of the following in common EXCEPT
A. the need for oxygen
B. the need for water
C. the need for nutrients
D. how they reproduce
Some kinds of algae produce toxins.
A. True
B. False
Answer:
a
Explanation:
because i have a fish tank and once we got my algee tested and it cape back toxic
Answer:
A
Explanation:
Some release algal toxins that can be harmful to aquatic and human life.
A generalist predator does which of the following?
A. has no natural predators
B. can live in any ecosystem
C. feeds on many different kinds of prey
D. depends exclusively on a single food source
Answer:
C
Explanation:
Generalist predators. Generalist predators have, by definition, several alternative prey species between which they may 'switch', depending on which prey species are currently most abundant.
Answer: C
Explanation:
Generalist predators. Generalist predators have, by definition, several alternative prey species between which they may 'switch', depending on which prey species are currently most abundant.
Why were Mendel's experiments important to biology?
Select all that apply.
they showed that all traits are either dominant or recessive
they showed that DNA contains the genes that control traits
they showed that inheritance was a random process
they showed that mathematical models could be used to explain inheritance
Answer:
a
Explanation:
During mendel's pea plant experiment he discovered recessive and dominant traits.
They showed that all traits are either dominant or recessive, They showed that inheritance was a random process. They showed that mathematical models could be used to explain inheritance.
What is inheritance?Inheritance is the process by which genetic information is passed down from one generation to the next.
Mendel's experiments with pea plants in the mid-1800s helped to establish the field of genetics and provided a foundation for understanding how traits are passed down from generation to generation.
Through his careful observations and experiments, Mendel was able to identify several key principles of inheritance, including the concept of dominant and recessive traits, the inheritance of traits independently of one another, and the random assortment of alleles during the formation of gametes
Thus, these findings were significant because they challenged prevailing ideas about inheritance at the time and provided a basis for further research into the molecular basis of genetics.
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What is binary fission
Answer:
binary fission, as3xual reproduction by a separation of the body into two new bodies.
Explanation:
Which statement correctly represents a mineral? a. any substance which develops in the ground any substance which develops in the ground. b. an element which is made into an object an element which is made into an object. c. any naturally forming substance made from one element any naturally forming substance made from one element. d. any chemical substance which forms naturally in the earth
Any chemical substance which forms naturally in the earth is called a mineral.
What is mineral?A chemical compound having a specific crystal structure that occurs naturally in pure form or formed naturally in the earth is known as mineral.
So we can conclude that any chemical substance which forms naturally in the earth is called a mineral.
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How do fossils help the support the theory of evolution
Answer:
Fossils of the simplest organisms are found in the oldest rocks, and fossils of more complex organisms in the newest rocks. This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils.