which of the following is/are true for the elements of the sixth period in the periodic table ?
a)They include the elements from cesium to radon.
b)They include transition elements of the lanthanide series.
c)There are a total of 15 elements in the sixth period.
d)Both A and B
Answers
the correct answer is d) a & b
Related Questions
What happens to electrons when pigments in Photosystem II absorb light? They become excited and break down the pigments to release ATP. They are pumped across the membrane into the thylakoid. They move through an electron transport chain to Photosystem I. They combine with oxygen and hydrogen to produce water.
Answers
Answer:
They move through an electron transport chain to Photosystem I.
Explanation:
High-energy electrons move through the electron transport chain from photosystem II to photosystem I. Energy from the electrons is used by the molecules in the electron transport chain to transport H+ ions from the stroma into the inner thylakoid.
Answer: They move through an elctron...
When light is absorbed by one of the many pigments in photosystem II, energy is passed inward from pigment to pigment until it reaches the reaction center. The high-energy electron is passed to an acceptor molecule and replaced with an electron from water.
Explanation:
The hypothalamus controls excretions from the pituitary gland. It causes the release of some hormones from the pituitary by direct nervous control, and others by secreting releasing and inhibiting factors that stimulate the pituitary to secrete hormones. Which best describes the hypothalamus? It is a connection point between the nervous and endocrine systems. It is both an exocrine and endocrine gland. It is referred to as the “master gland.” It secretes its contents into ducts.
Answers
Answer:
The hypothalamus controls our nervous system and hormones that control how we feel
Explanation:
The statement "It is a connection point between the nervous and endocrine systems" best describes the hypothalamus.
What is a hypothalamus?The hypothalamus is a region of the brain that is responsible for maintaining homeostasis in the body by regulating various physiological processes.
It is a crucial link between the nervous and endocrine systems, as it controls the release of hormones from the pituitary gland by both direct nervous control and secretion of releasing and inhibiting factors. Therefore, The statement "It is a connection point between the nervous and endocrine systems" best describes the hypothalamus.
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Attached earlobes are a recessive trait in humans. In the tree below, people with attached earlobes are shaded in. Which best describes the person labeled X in the tree?
Answers
Answer:
D
Explanation:
I think it is D, a female with one recessive allele
The answer is C. A male with one recessive allele. Just took this quiz
Is this a Cockatoo or a Parrot?
Answers
Answer:
PARROT
Explanation:
Answer:
The correct answer is Parrot
Earth is not completely round due to its rotation.
True
False
Answers
Abdominal breathing is a condition in which only the inferior half of the lungs can be seen expanding and contracting with each breath. Which of the following would cause abdominal breathing? Damage to the nerves that control the diaphragm Damage to the nerves that control the rib muscles Damage to the medulla oblongata Damage to the respiratory center
Answers
Explanation:
damage to the respiratory center
What is the function of the tissues indicated by the arrow? (3 points) Protection of the inner lining of the bladder Contraction of the bladder Structural support of the bladder Nerve impulse conductor for bladder
Answers
Answer:
C. Structural support of the bladder
Explanation:
The kidney empties the urine which is waste product of digestion into the . The bladder helps in the temporary storage of urine before they are excreted.
The Destrusor muscle is the name of the tissues indicated by the arrow. They contain thick smooth muscles which separates the bladder from tissues and organs. They also provide structural support for the bladder making it firm and well protected from damages.
please help First we need to covert 29 inches to miles. You do this by taking 29 and dividing it by 12. Then divide your answer by 5280. Multiply this answer by 5 (number of revolutions) and then multiply by 60 to get your answer in miles/hour.
Answers
Steps:
29 Inches = Miles 0.000457702
Divide by 5280 = 8.66859848e-8
Multiply by 5 = 4.33429924e-7
Multiply by 60 = 0.00002600579
Answer: 0.00002600579 or 0.00936208635
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What is the main function of cellular respiration?
to produce water
to gain energy for the cell
to produce carbon dioxide
to make oxygen for the cell
Answers
explanation:
Cellular respiration is the process through which cells convert sugars into energy. To create ATP and other forms of energy to power cellular reactions, cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form.
Answer:
to gain energy for the cell
Explanation:
edge2020
God Bless You<3
what is the function of the turbine in a nuclear reactor?
Answers
Answer:
The heat produced during nuclear fission in the reactor core is used to boil water into steam, which turns the blades of a steam turbine. As the turbine blades turn, they drive generators that make electricity.
Explanation:
The function of the turbine in a nuclear reactor is to circulate the water to the reactor after energy is removed from it to produce electricity. The correct option is A.
What is a nuclear reactor?A nuclear reactor is a gadget used to initiate as well as control a fission nuclear chain reaction or nuclear fusion interactions.
Nuclear reactors are employed in nuclear power plants for electricity generation as well as in nuclear marine propulsion.
A nuclear reactor, or power plant, is a sequence of machines that can control nuclear fission to generate power. Pellets of the element uranium are used as fuel in nuclear reactors to produce nuclear fission.
The heat generated in the reactor core by nuclear fission is used to boil water into steam, which turns the blades of a steam turbine. As the turbine blades turn, they drive generators that make electricity.
Thus, the correct option is A.
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(URGENT) Which of the following need mechanoreceptors to function? A. Touch B. Hearing C. Balance D. Sight
Answers
Answer: B) Hearing
Explanation: Hearing, equilibrium detection, skin tactile perception, deep tissue perception, and arterial pressure perception are all supported by mechanoreceptors. Mechanoreceptors in the inner ear are involved in the conversion of sound waves into neural signals during hearing or audition.
HELP! Now!!!
A. The separation of functions ensures that photosynthesis can continue running no matter what light conditions are present.
B. The presence of separate light-dependent and light-independent reactions ensures that the plant can survive through day and night.
C. Thylakoid and stromal fractions correspond to regions in the intact chloroplast that have overlapping functions.
D. Compartmentalization within the chloroplast keeps the light-dependent and light-independent reactions in close proximity but separated.
Answers
Answer:
A. The separation of functions ensures that photosynthesis can continue running no matter what light conditions are present.
Explanation:
Select the correct answer.
which formula gives the standard deviation of a data set?
Answers
Answer:
C
Explanation:
The denominator should be n to represent the total no. of data sets
Answer:
c
Explanation:
What number should replace the letter x in the “Seed color” row?
Answers
Answer:
D
Explanation:
The answer is letter D. 2,001. The following are the results of the F2 generation or the second filial generation of the contrasting traits. 705 purple 6,022 yellow 5,474 round 428 green 882 round 651 axial 787 tall 224 white 2,001 green 1,850 wrinkled 152 yellow 299 constricted 207 crop 277 dwarf
Conservation is
A. the practice of increasing the use of natural resources in order to use them
B. the practice of increasing the use of natural resources in order to save them
C. the practice of decreasing the use of natural resources in order to use them
D. the practice of decreasing the use of natural resources in order to save them
Answers
Answer:
The answer is A. Conservation is the act of protecting Earth’s natural resources for current and future generations.
Explanation:
what statement describes the danger of using heavy metals to control microbe growth?
A.heavy metals promote biofilm formation in humans
B.heavy metals stimulate some microbes to reproduce even more
C.heavy metals are toxic to many organisms besides microbes
D.heavy metals can assist with virus attachment to host cells
Answers
Answer:
D
Explanation:
What type of heterotroph is a kangaroo?
Answers
Answer:
herbivores
Explanation:
Kangaroos are herbivores, they eat plants
Grassland animals reproduce mainly during..... *
A. Rainy seasons
B. Dry seasons
C. Predators' attack
D. Hibernation
Answers
Answer:
hey mate your answer is
HIBERNATION
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This passage from chapter 4 of The Story of My Life is an example of whích
stage of plot?
The most important day I remember in all my life is the one
on which my teacher, Anne Mansfield Sullivan, came to
me. I am filled with wonder when I consider the
immeasurable contrasts between the two lives which it
connects. It was the third of March, 1887, three months
before I was seven years
old.
O A. Conflict
O B. Exposition
O c. Climax
O D. Conclusion
Answers
Answer:
B. Exposition
Explanation:
basically this passage is at the beginning of the story, therefore exposition is the correct stage of plot.
Answer:B,C
Explanation:
Which of the following actions is driven by superego?
Answers
Answer: choice “A”...
“Mina, a 3 month old baby...”
Answer:
B:Tanya drew the waiter’s attention to the fact that she and her friend had eaten two pizzas and two orders of fries, but their bill only mentioned one order of fries.
Explanation:
What are two possible ways in which mining metals affects the environment
Answers
Explanation:
environmental environmental impacts of mining can occur at local, regional,and global scales through direct and indirect mining practices. impacts impacts can result in erosion, 5 roses, loss of biodiversity, order contamination of soil, groundwater groundwater,and surface water by the chemical limited from mining process. Europethese processes also have an impact on the atmosphere from the emissions of carbon dioxide which have effect on the quality of human health and biodiversity.
Question 4
1 pts
Volcanic eruptions are the result of the movement of tectonic plates. Which of the
following most affects the movement of these tectonic plates?
The movement of ocean currents
O Heat within Earth
The gravity of the Moon
Radiation from the Sun
Question 5
1 pts
Answers
What types of organisms are
being modified through genetic
engineering?
A. all organisms
B. bacteria only
C. plants only
Answers
Answer:
A- all organisms
Explanation:just had question
Which of the following best compares viral reproduction to reproduction in other organisms?
A. Viruses do not contain genes that are replicated and passed on.
B. Viruses must commandeer the mechanisms of a host cell in order to reproduce.
C. Viruses and single-celled organisms use mitosis as a reproductive process.
D. Viruses can only reproduce asexually while other organisms have a choice.
Answers
Answer:
B. Viruses must commandeer the mechanisms of a host cell in order to reproduce
Explanation:
Virus is an organism that is incapable of replicating on its own without infecting a living host cell. A viral cell is dependent on a living host to replicate and express its genes. Hence, the infection cycle of a virus is its reproductive life cycle.
Other living organisms e.g plant, bacteria, fungi etc. have the ability to reproduce i.e. multiply on their own through asexual or sexual means. However, on the contrary, a virus must infect a living host, hijack the replicational abilities of the host cell in order to reproduce. Based on this, a virus employs a lysogenic or lytic cycle or both on its host to reproduce.
Pls helpppppppppppppp
Answers
Answer:
Wave Rock: erosion by groundwater
Thor's Hammer: Erosion
Hawaiian Island Chains: Formed by a hot spot
The Great Blue Hole: a limestone cave that collapsed when ocean levels rose
Help me out please !
Answers
Answer:
B.
Explanation:
The birthrate is higher than the death rate.
Banshee
A physician wants to observe the monocytes from a patient. Design an experiment the physician can perform to retrieve monocyte cells.
Answers
Answer:
White blood cells can be called the strong defender of our body from foreign substances. These cells are responsible for increasing the immunity power of a person.
Explanation:
Monocytes cells are also called white blood cells. These cells play a role an antigen that fight with outer danger and protect other white blood cells as well and prepare other cells to reduce the dead blood cells and renovate new blood cells.
These cells prevent cancer cells and fight against foreign antigens or particles. The Monocytes are the cells that develop in the bone marrow of a person and develop red blood cells.
In white blood cells, some macrophages cells are called the scavengers in the bone marrow that eat foreign particles and increase the immunity power of the person. The diagnose can be done with the help of blood testing.
True or False? Precipitation can be in the form of liquid or solid water?
Answers
Answer:
answer to this question is true
What is the female part of the plant that produces eggs called?
Answers
Answer:
In flowering plants, the female reproductive structures that produce seeds are contained within the carpels of the flower. A carpal consists of the stigma, style and ovary. The ovary contains ovules (eggs) that become seeds once they are fertilized.
A major freeway runs along a stretch of the ocean shore. Over time, scientists begin to
notice a decrease in the number of intertidal organisms. Which of the following is the most
likely cause of the problem?
O A. toxic waste spilled during accidents on the
road
B. runoff of oil and other chemicals from the
road
C. wastewater from the city across the
freeway
O D. Any or all of the above could be causing
the problem.
Answers
Answer:
D. Any or all of the above could be causing the problem.
Explanation:
Pollution has been said to have adverse effect on living organisms. In this question, a decrease in number of intertidal organisms has been observed. Since a major freeway runs along a stretch of the ocean shore, the most likely cause of the death of the intertidal organisms is the release of any form of toxic waste into the water body.
Oil pollutants causes death of living organisms by hindering the entrance of oxygen into the water body. It makes it difficult for oxygen, which is a requirement for life, to penetrate the water body. Hence, living organisms in the water body will suffocate and die.
Toxic wastes also causes the death of organisms when ingested in excess. Waste water causes deterioration in the oxygen content of the water body. Hence, any or all of the above options can likely cause the reduction in number of the intertidal organisms.