Answer:
Earth does not always spin on an axis running through its poles. Instead, it wobbles irregularly over time, drifting toward North America throughout most of the 20th Century (green arrow). That direction has changed drastically due to changes in water mass on Earth.
Explanation:
Question 1
Alberto created a graph to illustrate his trip. Answer the questions below.
A. How does Alberto's motion change at point B?
B. What is Alberto's speed from point C to point D?
C. What happens at point D? (1 point)
Question 2
Answer the question below about Smokey The Mouse.
A. Use inertia to explain how a balanced force will affect his motion. (Newton's 1st Law)
B. What are two ways Smoky can increase his speed? (Use Newton's 2nd Law to help you)
C. What is an example of an action and reaction at work in this picture? (Use Newton's 3rd Law to help you)
The mouse exerts a force on the ground and the ground exerts an equal and opposite reaction force on the mouse.
At point B, Alberto's distance covered increases with time, equal distance is covered in equal time interval. The speed increases uniformly. At the point C to D, the distance covered with time remains the same. At the point D, equal distance is no longer covered in equal time intervals.
According to the law of inertia, an object will remain at rest or in a state of uniform motion unless it is acted upon by an unbalanced force. This means that smokey mouse will continue moving uniformly unless a force acts on it.
From Newton's second law; F = ma and a = F/m. F = force , m= mass, a = acceleration. This implies that smokey mouse can increase its speed by;
Increasing the force acting on the mouseDecreasing the mass of the mouseAction and reaction is encountered as the mouse is walking. The mouse exerts a force on the ground and the ground exerts an equal and opposite reaction force on the mouse.
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Match each pollutant with its source.
Match Term Definition
Carbon dioxide A) made when it reacts to oxygen
Nitrogen oxides B) released when burning coal or gas
Volatile organic compounds C) emissions from oil refineries
Sulfur oxides D) cleaning, disinfecting, and degreasing products
The pollutants and their respective sources include the following
Carbon dioxide - This is released when burning coal or gas. The burning of
fossil fuels such as coal or gas releases the greenhouse called
carbondioxide and is responsible for increase in infrared absorption to the
earth.
Nitrogen oxide: This is made when nitrogen reacts with oxygen under the
appropriate conditions.
Sulfur oxides : This is contained in emissions from oil refineries. This is
because crude oil which is the major raw material in refineries have large
amounts of sulphur in them which reacts with oxygen to form sulfur oxides.
Volatile organic compounds: These are contained in cleaning, disinfecting,
and degreasing products.
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True or False: Microbiomes are found only within the body of a host, which may be animal, plant, fungal, or even protist.
A process in which cells surround and engulf substances that are too big to pass
through the membrane is known as...
membrane pump
endocytosis
facilitated diffusion
exocytosis
Answer:
including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid. Finally, receptor-mediated endocytosis is a targeted version of endocytosis where receptor proteins in the plasma membrane ensure only specific, targeted substances are brought into the cell.
Explanation:
so the answer is exocytosis
Answer:
Endocytosis
Explanation:
What is a group of similar cells that perform the same function?
A. a tissue
B. an organelle
C. an organ system
D. a multicellular organism
Answer:
The answer is A. a tissue
Explanation:
Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body.
For which one of the following functions is parenchyma tissue particularly suited?
A. Reinforcement and support C. Elasticity
B. Exchange of gases D. Formation or root hairs
Reinforcement and support
parenchyma, in plants, tissue typically composed of living cells that are thin-walled, unspecialized in structure, and therefore adaptable, with differentiation, to various functions. The cells are found in many places throughout plant bodies and, given that they are alive, are actively involved in photosynthesis, secretion, food storage, and other activities of plant life. Parenchyma is one of the three main types of ground, or fundamental, tissue in plants, together with sclerenchyma (dead support tissues with thick walls) and collenchyma (living support tissues with irregular walls).
To some extent, sensory receptors in the skin are specialized to detect and register specific stimuli. Please select the best answer from the choices provided T F.
Sensory receptors in the skin being specialized to detect and register
specific stimuli is True.
The skin is an example of a sense organ found in the body . It contains
receptors which helps to detect and respond to stimuli. There are
different stimuli such as touch, pressure, pain and temperature
This means that the skin being a sense organ is able to detect and register
specific stimuli as a result of the presence of its receptors.
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Answer:
True or False? TRUEExplanation:
Proteins contain ___ different
amino acids, whereas DNA
and RNA are composed
of different ___ nucleotides.
Which statement best expresses a relationship between organic farming and conventional farming that is presented in the passage?.
Answer:
producing "sheer calories "
Calculate the kinetic energy of a
30 g bullet fired at 200 m/s.
Step 1: Identify the formula needed to solve this problem.
The formula for kinetic energy (KE) is:
KE = 1/2m~v^2
m = mass
v = velocity
Step 2: Make a list of the values given in the question.
mass (m) = 30 g
velocity (v) = 200 m/s
[tex] \frac{1}{2} m {v}^{2} \\ \frac{1}{2} \times 30 \times {200}^{2} \\ 15 \times 40000 \\ = 600000[/tex]
Answer:
6 × 10⁵ J
Explanation:
Kinetic Energy of a moving mass is defined as, half of the product of it's mass and the square of it's velocity.
[tex] \boxed{ \mathsf{K.E. = \frac{1}{2} m( {v})^{2} }}[/tex]
Mass of the bullet (m) = 30 gvelocity (v) = 200 m/ s[tex] \implies\mathsf{K.E. = \frac{1}{2} \times 30 \times ( {200})^{2} }[/tex]
[tex] \implies\mathsf{K.E. = 15 \times 4 \times {10}^{4} }[/tex]
[tex] \implies\mathsf{K.E. = 60 \times {10}^{4} }[/tex]
[tex] \implies \underline{\mathsf{K.E. = 6 \times {10}^{5} J }}[/tex]
True or false: Despite the large explanatory ability of evolution, no direct observations of evolution have been made.
Answer:
false
Explanation:
the term meaning the freeing of a kidney from adhesions is:
Answer:
Ureteroplasty is surgery to remove the stricture.
Explanation:
why is it important to study the ecology of an area?
Ecology and enriches
Explanation:
Why is it ecology important because ecology enriches our world and is cruail for a human well being and prosperity maybe..?
Plzzzzz help meeeee plzzzzzzz
Answer:
59 is false and 60 and true
Explanation: I think it is right sorry if it is wrong. I hope this helps
Answer: 1) True 2) True
Explanation:
how do you determine if an object will float or sink when placed in water?
Answer:
if the weight force down on the object is more than the upward push of the water then the object will sink, and reversed for rising
Explanation:
i found the answer online lol, hope this helps! :)
Which of the following statements is TRUE?
*Thin myofilaments contain actin, tropomyosin, and troponin.
Thick myofilaments contain myosin and tropomyosin.
Thin myofilaments contain myosin.
Thick myofilaments contain actin, tropomyosin, and troponin.
Answer:
a. Thin myofilaments contain actin, tropomyosin, and troponin.
Explanation: is correct/post protected
which statement correctly distinguishes DNA and RNA?
Transformed bacteria are plated on LB plus ampicillin to determine which cells were successfully transformed. Which part of the pGLO plasmid is responsible for the growth of transformed cells despite the presence of ampicillin
Answer:
The gene that encodes ampicillin resistance.
Explanation:
The plasmid would contain the ampicillin resistance gene which gets expressed in the presence of ampicillin.
what is phototropic?
Describe the role that rivers and streams play in the water cycle.
Can someone help me with this please? i would really appreciate it
Answer:
I'll try, what is it?
Explanation:
12. Which is NOT a natural cause of extinction?
A. Disease
B. Catastrophic events
C. Introduction of new species
D. Competition due to overpopulation
24. Which is NOT true about energy transformation?
A. Energy is essential to all organisms.
B. Food contains energy that is needed by all organism.
C. Heterotrophs feed on autotrophs and other heterotrophs to gain energy.
D. Autotrophs do not need energy because they can produce their own food.
23. Which is the CORRECT sequence of events in cellular respiration?
A. Glycolysis - fermentation - Krebs Cycle
B. Glycolysis - Krebs Cycle - Electron Transport
C. Krebs Cycle - Electron Transport - Glycolysis
D. Krebs Cycle - Glycolysis - Electron Transport
2. In humans there are four types of blood; type A, type B, type AB and type O. A person with a genotype of IaIa or Iai will have blood type_____?
A. A
B. B
C. O
D. AB
4. A couple has four children, one son and three daughters. What is the chance that the fifth child will be a daughter?
A. ¼
B. ½
C. ¾
D. 1/5
22. Cellular respiration releases energy by breaking down_______.
A. ATP
B. water
C. carbon dioxide
D. food molecules
5. A man is colorblind but there is no history of this disorder in his wife’s family. What is the chance that their son is color
blind?
A. 0
B. 25%
C. 75%
D. 100%
25. Which BEST summarizes the process of respiration?
A. Water + Carbon Dioxide ( light) sugar + oxygen
B. Sugar + Oxygen (enzymes) water+ carbon dioxide +energy
C. Water + Sugar ( light ) carbon dioxide + oxygen
D. Oxygen + Water (enzymes) sugar + carbon dioxide + energy
1. A father with blood type AB and a mother with blood type O will probably produce offspring with a blood type ___. *
A. A
B. B
C. A or B
D.AB or O
6. What is a sex- linked trait that results in the inability to have normal blood clotting?
A. baldness
B. color blindness
C. diabetes
D. hemophilia
11. What causes species extinction?
A. Pollution and reforestation
B. Reforestation and carbon emission
C. climate change and over consumption
D. conservation and consume
18. The pigment molecules responsible for photosynthesis are located in the _______? *
A. Mitochondria
B. Cytoplasm of the cell
C. Stroma of the chloroplasts
D. Thylakoid membrane of the chloroplasts
13. Which part of a leaf contains most of the chloroplasts?
A. Lower epidermis
B. Palisade mesophyll
C. Spongy mesophyll
D. Upper epidermis
19. At optimum light intensity, which atmospheric gas most directly influences the rate of photosynthesis?
A. Nitrogen
B. Oxygen
C. Sulfur
D. Carbon Dioxide
14. What part of the leaf is this tiny opening in the lower epidermis which makes it rough and responsible for the entrance and exit of gases in plants?
A. xylem
B. phloem
C. stomata
D. guard cells
16. In which part of the chloroplast does light reactions of photosynthesis takes place?
A. Grana
B. Stroma
C. Inner membrane
D. Outer membrane
17. Which is NOT needed to make food in plants?
A. Flower
B. Sunlight
C. Chlorophyll
D. Carbon Dioxid
8. Color-blindness is inherited as a sex-linked recessive trait. If a normal woman, carrier of the gene marries a man with normal color vision. What would be the expected phenotype of their children with reference to color-blindness?
A. All color-blind
B. 2 carriers, 2 color-blind
C. 1 normal, 3 carriers
D. 2 normal, 1 carrier, 1 color-blind
3. Blood type O has both antibodies A and antibodies B in the plasma but has no antigen on its erythrocytes or red blood cells. That is why Blood Type O is considered UNIVERSAL______.
A. Blood
B. Donor
C. Marker
D. Recipient
7. Melvin’s thinning hair is like that of his father. This characteristic of baldness is due to
A. multiple alleles
B. sex-linked
C. sex-influenced
D. sex-limited
Answer:
A bowling ball weighs 15 pounds on Earth and weighs 4 pounds on the planet Saturn. You could determine a 100–pound earthling's weight on Saturn using the proportion:
Explanation:
a.
StartFraction 15 Over 4 EndFraction = StartFraction b Over 100 EndFraction
c.
StartFraction 4 Over 15 EndFraction = StartFraction 100 Over b EndFraction
b.
StartFraction 15 Over 4 EndFraction = 100 Over b EndFraction
d.
either a or c
11. What are the proteins used in active transport called?
The answer carrier proteins
Can someone help me please?
Answer:
The second arrow (the middle one)
13. why might amplification of a signal be important during transduction?
a. the signal needs to be repeated several times before a cell can respond
b. it reduces signal errors during transduction
c. the signal is louder for the cell
d. more molecules can be activated in fewer steps
e. the signal is to small for the cell to recognize otherwise
Answer:
b ) it reduces signal errors during tranduction
What is photorespiration.
Which of the following is NOT part of the non-specific immune response?
A. Inflammation
B. Phagocytosis
C. Antibodies
D. Interferons
D. Interferons are not a part of the non-specific immune response.
What is the function of interferons?Interferons were first described as an antiviral thing that interferes with viral replication in mammalian cells (10). they're secreted from inflamed cells and spark off an innate immune reaction that promotes now not best cytokine production but additionally herbal killer mobile features and antigen presentation.
Interferons (IFNs) — the body's first line of antiviral defense — are cytokines that are secreted by host cells in reaction to virus infection. by using inducing the expression of hundreds of IFN-inspired genes, numerous of that have antiviral capabilities, IFNs block virus replication at many ranges.
Interferons are a circle of relatives of clearly-happening proteins which are made and secreted with the aid of cells of the immune gadget (an example, white blood cells, natural killer cells, fibroblasts, and epithelial cells).
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Which of the following statements correctly describes genes?
Answer:
Genes are made of DNA and are carried on chromosomes
Explanation:
When testing the effect of penicillin on the growth of E. coli, penicillin would be considered the? A.independent variable B. dependent variable C. constant
