Answer:
What is the hypothesis? You didn't show anything here.
Explanation:
Which of the following is true about environmental hazards to humans?
A)
Children are more at risk than adults because they take in more air per unit mass than adults.
B)
Adults are most at risk because they have the highest exposure to environmental hazards.
C)
Elderly people are most at risk because their immune systems do not perform efficiently.
D)
Children are least at risk because they have well functioning immune systems.
E)
Adults are most at risk because they take in more pollutants relative to their size than children.
Answer: A)
Explanation:
Children are at a higher risk of suffering negative effects from environmental hazards than adults, because children do not have fully developed immune systems. In addition, children have a higher exposure to environmental hazards, because they spend more time outside, on average, than adults. Children also take in more air per unit mass than adults, which means that they also take in more pollutants relative to their size.
1. The pollutants in our atmosphere have the ability to change the entire planet’s
2. is a theory that states that the increasing carbon dioxide in the atmosphere is causing the climate to warm up.
Answer:
Ans1 Not only does it contain the oxygen we need to live, but it also protects us from harmful ultraviolet solar radiation. It creates the pressure without which liquid water couldn't exist on our planet's surface. And it warms our planet and keeps temperatures habitable for our living Earth
Ans.2 The carbon dioxide theory states that, as the amount of carbon dioxide increases, the atmosphere becomes opaque over a larger frequency interval; the outgoing radiation is trapped more effectively near the Earth's surface and the temperature rises.
Which sex chromosome determines the sex of a baby?
Explain your answer.
Answer:
Girls have two X chromosomes and boys have chromosomes (XY).
Explanation:
Girls have two X chromosomes (XX), and boys have one X and one Y chromosome (XY). Whether a baby will be a boy or a girl is determined at the time of conception.
How is DNA created?(short answer)
Explanation:
For a strand of DNA to form, nucleotides must be linked into chains, with the sugar phosphate groups alternating. DNA is made of the building block chemical called nucleotides. Nucleotides are made up of three main parts, a sugar group, a phosphate group, and some type of nitrogen base. Hope this answers, and is helpful! Have a great day! :))
What's a node on a cladogram?
Answer:
The node therefore represents the end of the ancestral taxon and the stems , the species that split from the ancestor. The two taxa that split from the node are called sister taxa.
Explanation:
Answer:
A n0de corresponds to a hypothetical ancestor. A terminal node is the hypothetical last common ancestral interbreeding population of the taxon labeled at a tip of the cladogram. ... Each internal n0de is also at the base of a clade, which includes the common ancestral population (node) plus all its
Explanation:
decendants
can anyone help please?
which of the following is NOT a way in which a lake can become a
forest? *
A. The plants are eaten by many animals.
B. Dead leaves settle to the bottom.
C. The soils dry out.
D. The lake is filled with sediment.
Answer: A. The plants are eaten by many animals.
Explanation:
Which student’s statement best describes the movement of Earth’s plates?
What are the abiotic factors that could affect a population?
what happened when Griffith mixed heat-killed bacteria with the harmless culture of bacteria?
PLEASE HELP!!!!!!!! ASAP!!!!!
Answer:
C.
Explanation:
the heat-killed bacteria had passed their disease causing ability to the harmless strain
How does air flow when a low-pressure center occurs in the atmosphere?
Answer:
A low pressure system has lower pressure at its center than the areas around it. Winds blow towards the low pressure, and the air rises in the atmosphere where they meet. As the air rises, the water vapor within it condenses, forming clouds and often precipitation.
Explanation:
After large scale fishing, which populations of organisms are
becoming more rare? Why?
ASAP Help Please!! Why is bread soft and airy?
o Bacteria secreting lactic acid is breaking up the gluten
o Yeast is secreting alcohol and dissolving the gluten
o Yeast is secreting CO2 causing bubbles in the dough
o Bacteria is eating up some of the gluten
Answer:
Yeast is secreting CO2 causing bubbles in the dough
Explanation:
Answer:
option b
Explanation:
Yeast is secreting CO2 causing bubbles in the dough
What is the significance of crossing over?
Answer and Explanation:
Crossing over is the switching of genetic material (DNA), which occurs in Prophase 1.
This all happens in Meiosis, which is the process of the formation of sperm and egg cells.
The paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.
#teamtrees #WAP (Water And Plant)
A hurricane passes through the Gulf of Mexico and destroys many of the coastal regions of Northwest Florida. Which of the following is a likely impact of this catastrophic event on biodiversity?
Group of answer choices
Species brought in by the storm surge will displace species native to the coastal wetlands.
Excessive salt from the storm surge will flood coastal wetlands and raise salinity to intolerant levels for the local species, causing a decrease in biodiversity
Coastal wetlands will grow exponentially with the input of nutrients from storm upwelling and biodiversity will increase in these areas.
Species reliant on coastal wetlands for survival may experience a decline in population due to loss of habitat.
Answer:
Species reliant on coastal wetlands for survival may experience a decline in population due to loss of habitat.
Explanation:
A hurricane destroys many coastal regions of Northwest Florida which leads to the loss of habitat of many species that lives on the coastal region of Northwest Florida. This hurricane destroy the habitat that leads to decrease in population of organisms that lives in that coastal region so we can conclude that the population of organisms decreases due to this hurricane.
What are the advantages of getting spider silk from goats instead of spiders?
Answer:
The benefits of genetically modified web spinning goat is that the web produced can be used for many different positive reasons. Spider silk is the strongest naturally occurring fiber and is 6 times strong than steel of the same weight.
Explanation:
i got it right
Where does the fetus normally develop?
Answer:
in the womb !!
Explanation:
hAve a good night
Answer:
Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.
whats the location of a nerve impulse?
Answer:
the place where the axon of one neuron meets the dendrite of another, using chemicals called neurotransmitters
A diagram of a human skeleton.
Answer:Here is a detailed form of the human skeleton.Hope it helps!
hi can someone help me with question 1.5 thanks
Match the description with the corresponding fruit part.
1. the innermost protect layer around a fruit seed such as the shell of a peach pit
2. all the layers surrounding the seed of a fruit
3. the middle protective layer of a fruit seed; often the flavorful flesh
4. the outermost skin of a fruit
a. endocarp
b. pericarp
c. epicarp
d. mesocarp
Answer:edg
Explanation:
endocarp- the inner most protect
layer around fruit seed
pericarp- all the layers surrounding
mesocarp- the middle protective layer of fruit seed
epicarp- the outermost skin
ill) Age changes in white blood cells include decreases in the number and rate of release
of stored cells, rate of movement, ability to be chemically attracted to areas, and
proportion of cells capable of performing phagocytosis. Explain how these changes will
affect the human body.
(2) PLEASE HELP... Reliable answer will receive brainliest.
Answer:
it will reduce the ability of white blood cells to guide against disease
what type of mutation has the least amount of impact on a protein ?
Answer: Silent Mutation
Explanation: Silent mutation: Some mutations that change DNA bases do not have any effect on the sequence of amino acids in the protein. These mutations are called silent mutations and they do not affect the structure or function of the protein because there is no effect on the amino acid sequence.
Answer:
Point Mutations
Explanation:
It is the least harmful mutation
Discuss the relationship between mitosis and cytokinesis. what would be the result if one happened without the other ?
Do you have a summative in Grade 9 science?
Answer:
check with your teacher
Answer:
yes I have
Explanation:
why did you ask
what determines the function of a protein
Answer:
The sequence of amino acids. - The three-dimensional shape of the folded protein. - If the coding sequence has a mutation that leads to a change in the amino acid sequence, the protein may have a different three-dimensional shape, reducing its activity.
Explanation:
is a rotting log considered living or non living? why?
Answer:
A rotting log is nonliving. However, it can have mold, lichen, or fungus growing on it, which is not the log itself. Those three things are living. And though the log was once a living tree, at it's current state, it is nonliving.
I hope this was helpful!
While volunteering at a hospital, Alex learns that there are several different human blood types and they are determined by alleles. For example, a person with an allele for type A blood and an allele for type B blood will have type AB blood. Alex asks a nurse if blood type A or B is dominant. What answer does the nurse give him?
Answer:
They are codominant
Explanation:
There are 3 different alleles: IA, IB and i - IA and IB are codominants, i is recessive. Codominance means neither allele can mask the expression of the other and both alleles A and B are expressed in the blood type.
Blood type A and Blood type B both are dominant if allele A or allele B present with the O allele, however, they show codominance if they present together.
The human blood group system is known as the ABO blood group system that exhibits codominance. Following are the characteristics of this blood group system:
The system consists of three alleles A, B, and O.Both A and B are dominant in relation to O, and therefore blood group A or B can have the genotype AA or AO or BB or BO respectively.If both A and B are present together then they show codominance and have the genotype AB.Thus, the correct answer would be - both A and B are dominant if allele A or allele B present with the O allele, however, they show codominance if they present together.
Learn more about the ABO blood group system:
https://brainly.com/question/6279580
How many categories are there on the Modified Mercalli Scale?
Answer:
i hope this helps!!?
Explanation:
Giuseppe Mercalli (1850-1914) originally developed the scale, with ten levels. In 1902, Adolfo Cancani extended the scale to include twelve levels. August Heinrich Sieberg completely rewrote the scale. For this reason, the scale is sometimes named Mercalli-Cancani-Sieberg scale, or MCS scale.
Answer:
awsten knight
Explanation:
The planets, comets, and meteors of the solar system are held
(in orbit by the Sun's.
fa. Gravity
16 Spring force
I. Friction
d. Tension
Answer:
Gravity
Explanation:
Gravity keeps the planets, comets and meteors in orbit around the sun. The sun is bigger and heavier than other planets etc, this causes the planets to be pulled and kept in orbit around the sun.
Hope this helps!