Answer:
jellyfish is the correct answer
please help me on the first one (highlighted)
Answer:
Change in water source
Explanation:
officials from Flint, Michigan switched the city's water supply to the Flint River as a cost-cutting measure for the struggling city, and they unwittingly introduced lead-poisoned water into homes.
Students in a college made this hypothesis: ‘reaction time will increase as the time you have been awake increases.’ The students set up an investigation to test their hypothesis. This is the method used. 1. Find 5 volunteers willing to stay awake for 24 hours. 2. Keep the volunteers in a room where they can study, use an exercise bike or watch TV as they wish. 3. Provide food, water, coffee and tea as requested. 4. Measure the volunteers’ reaction time every 4 hours using a computer program. (b) What was the independent variable in this investigation? _______________________________________________
Answer: Time one has been awake
Explanation:
In research, the independent variable is the one that is altered to see the effect that it produces on another variable/s which will be the dependent variable/s.
In this scenario, the amount of time that someone stays awake is the variable being altered to see what effect it will have on the person's reaction time. This therefore makes it the independent variable.
what is the main way viruses cause diseases in the body?
Which of these technologies may have a positive effect on fish supply worldwide?
fish farming
tracking technology
bottom trawling
bigger fishing boats
Answer:
tracking technology
Explanation:
Protons give an element its ________.
1)
electronegativity
2)
bonding properties
3)
atomic number
4)
isotope
5)
bonding properties
Answer: 3. Atomic number
Explanation: Good luck! :D
What three parts make up the modern cell theory
5.Write observation and conclusion of each of the following activities.
Answer:
Water puts pressure depends on their amount.
Explanation:
In the bottle, there is large quantity of water that put high pressure on the bag present at the side of the bottle that leads to swelling of the bag whereas, if the bag is present at the bottom not at the side and water is also present in large amount so more swelling of bag occurs so we can conclude that more water puts more pressure and less water puts less pressure.
How was Hawaii formed, and how does this provide evidence for convection happening?
HELP PLEASE
By many volcanic eruptions eventually forming an island.
pls help this is major plssssssss help!
What is the nutrient source for some fungi?
1. Sunlight
2. Oxygen
3. Carbon dioxide
4. Dead organisms
Answer:
It's four 4. Dead organisms
Hope this helped
Hope this helped ALL THE BEST !!
Which of the following rows in the table best compares the function of a plant's xylem and phloem? I Need help ASAP!
Row 1
Xylem
- transports glucose absorbed by the roots to the rest of the plant
- alive at maturity
Phloem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Row 2
Xylem
- transports glucose produced by photosynthesis in the leaves to the rest of the plant
- dead at maturity
Phloem
- transports water and nutrients absorbed by the roots to the rest of the plant
- alive at maturity
Row 3
Xylem
- transports water and nutrients absorbed by the roots to the rest of the plant
- dead at maturity
Phloem
- transports glucose made during photosynthesis in the leaves to the rest of the plant
- alive at maturity
Row 4
Xylem
- transports water and nutrients produced by photosynthesis in the leaves to the rest of the plant
- alive at maturity
Phloem
- transports glucose absorbed by the roots to the rest of the plant
- dead at maturity
Answer:
row 3
Explanation:
xylem transport water and nutrient absorbed by the root to other part of the plant
Answer:
Row 3
Explanation:
I took the exam
18. Marlon took the microscope and observed a sliced plant leat. He switched it into 100% magnification and saw
a green pigment. In which part of the plant cellis it found?
a nucleus b. mitochondrion G chloroplast d. lysosome
Answer:
chloroplast
Explanation:
its is the green pigment in the plant. it allows photosynthesis to take place
18) The enzyme poly-A polymerase is responsible for adding 3' poly-A tails to eukaryotic mRNAs. This enzyme... A. cuts the mRNA after recognition of the cleavage/polyadenylation signal by CstF and CPSF proteins. B. polymerizes the tail using an RNA template that is part of the enzyme. C. isthesameaspolII D. normally adds about 2000 A nucleotides to the mRNA. E. uses A TP as a substrate.
Answer:
The correct answer is - option e. uses ATP as a substrate.
Explanation:
Poly-A Polymerase is an enzyme of the family of the DNA polymerase beta (polβ) family which catalyzes the reaction of the addition of AMP from ATP to the DNA polymerase beta (polβ) family.
ATP+RNA-3'OH--------->Pyrophosphate + RNApA-3'OH.
In this reaction, after the mRNA is cleaved, the Poly-A Polymerase template-independently adds about 200 A nucleotides (from ATP) one by one.
Why do Sea Spiders get so BIG? Give 2 Reasons:
I
In a normal respiratory cycle the volume of air that moves into and out of the lungs is about 504 mL. The reserve and residual volumes of air that remain in the lungs occupy about 2030 mL and a single respiratory cycle for an average human takes about 4 seconds. Find a model for the total volume of air V(t) in the lungs as a function of time.
Answer:
[tex]V(t)=252sin(\frac{\pi}{2}t )+2282[/tex]
Explanation:
The volume of air increases and decreases, hence the volume of air can be represented as a sine function.
A sine function is of the form:
y = Asin(B(x - C)) + D
Where A is the amplitude, B is the frequency, C is the horizontal shift and D is the vertical shift.
Therefore, the total volume of air V(t) in the lungs as a function of time is given by:
V(t) = Asin(B(t - C)) + D
Since the volume of air in and out of the longs is 504 ml, hence the amplitude (A) = 504/2 = 252
There is residual air of 2030 ml minimum in the lungs and a maximum of 2534 ml (2030 ml + 504 ml), hence the vertical shift (D) = (2534 + 2030) / 2 = 2282 ml
The frequency B = 2π / 4 s = π/2
Therefore:
[tex]V(t)=252sin(\frac{\pi}{2}t )+2282[/tex]
Gold has a specific heat of 0.129 J/(g×°C). How many joules of heat energy are required to raise the temperature of 15 grams of gold from 22 °C to 85 °C?
Answer:
[tex]\boxed {\boxed {\sf 121.905 \ J }}[/tex]
Explanation:
We are asked to find the energy given mass, specific heat, and change in temperature. Therefore, we must use this formula;
[tex]q= mc \Delta T[/tex]
The mass is 15 grams and the specific heat is 0.129 J/(g×°C). Let's calculate the change in temperature.
ΔT= final temperature - initial temperature ΔT= 85 °C- 22°C = 63°CNow we know all the values:
[tex]m= 15 \ g \ \\c= 0.129 \ J / (g* \textdegree C) \\\Delta T= 63 \ \textdegree C[/tex]
Substitue the values into the formula.
[tex]q= (15 \ g)( 0.129 \ J / (g* \textdegree C)) ( 63 \ \textdegree C)[/tex]
Multiply the first numbers together. The grams will cancel.
[tex]q= (1.935 \ J/ \textdegree C) ( 63 \ \textdegree C)[/tex]
Multiply again, this time the degrees Celsius cancels.
[tex]q= 121.905 \ J[/tex]
121.905 Joules are required.
Answer:Approximately
146.54 joules.
Explanation:
The specific heat equation, which states that:
q=mcΔT
4. All of the offspring of an organism have the same genetic material, which is identical to the
parent organism. From this, we can conclude that this organism -
a. makes its own food
b.is unicellular
c. live in a marine habitat
d reproduces asexually
5. Bacteria reproduce asexually by a process called
a. Meiosis
b. binary fission C. replication d. regeneration
______ are plants that produce seeds and flowers.
Gymnosperms
Angiosperms
Ferns
Mosses
Answer:
b i think
Explanation:
if not its a
Answer:
1st one
Explanation:
Review: Fill in the boxes with missing vocabulary Need Help: Click here Polymer Monomer Protein nucleotide
Answer:
This question is asking for the polymer and monomer of nucleotide and protein respectively.
The answer is:
Protein - monomer is AMINO ACID
Nucleotide - polymer is NUCLEIC ACID
Explanation:
There are four major biological molecules found in nature namely: protein, carbohydrates, fats and oil, nucleic acid. These biological molecules are, however, complex and polymeric in nature and like every other polymer, they must contain monomers that make up their structure.
- PROTEINS are made up of monomers called AMINO ACIDS.
- CARBOHYDRATES are made up of monomers called MONOSACCHARIDES.
- LIPIDS are made up of monomers called FATTY ACIDS.
- NUCLEIC ACIDS are made up of monomers called NUCLEOTIDES.
What will most likely happen if all the chloroplasts are removed from a plant cell?
Help please don't answer just for points please
Answer:
D) they alter the bases so they no longer fit within the DNA ladder rungs
The model shows the cycling of carbon
Carbon dioxide
in air
Green plants
absorb CO2
Animals
respiration
Decomposers
respiration
Food for
animals
Death
Waste materials
Which part of the model shows carbon moving from the biosphere to the
atmosphere?
Answer:
A. Decomposers breaking down the material
Explanation:
Decomposition is the process in which decomposers such as bacteria break down the organic material in the atmosphere.
In the given image, decomposers breaking down the material shows carbon moving from the biosphere to the atmosphere because decomposers break down the dead organisms and in the process the carbon in the bodies of dead organism get back in to the atmosphere.
Hence, the correct answer is "A. Decomposers breaking down the material".
how are most antibiotics used in the US? A. To treat human disease B. To keep food-producing farm animals healthy C. To treat domestic pets D. To cure diseases in food-producing animals
Answer:
your answer wil be a.
Explanation:
Identify the Kingdom:
Eukaryotic
Nucleus
Most Multicellular/Some Single Celled
Have a Cell Wall
Heterotrophic
No Chloroplasts
Feed by absorbing nutrients from decaying matter
a) Protista
b) Animalia
c) Fungi
d) Eubacteria
e) Plantae
f) Archaebacteria
Answer:
Kingdom Fungi
Explanation:
Fungi are characterized as eukaryotic, unicellular or multicellular, having cell wall, lack chloroplast and take food by absorption.
Which domain Includes organisms that have
a nucleus, a cell membrane, and mitochondria?
What are 2 things plants produce in photosynthesis
Answer:
During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light.
Explanation:
process by which plants turn water, sunlight, and carbon dioxide into water, oxygen, and simple sugars.
DNA contains the code for for constructing which molecules?
Lípids
Proteins
Carbohydrates
Suzars
Question 13
6.7 pts
Answer:
proteins
Explanation:
please answer the question under
Answer:
5. c
6. a
7. d
8. a
Explanation:
Answer:
5. B.) cell walls
6. A.) interphase
7. D.) Death
I'm sorry but I do not know about 8
Explanation:
explain what an ion is and how ions are created; be able to describe the difference in the formation of a negative and a positive ion.
Answer:
An ion is an atom or group of atoms, that bears one or more positive/negative electrical charges. Ions are formed when a netrual atom loses or gains electrons. This loss/gain of electrons imparts a positive or negative charge to the neutral atom, making it an ion. The difference in the formation of a negative ion is that the atoms lose valence electrons to become positive ions (vice-versa with a positive ion, so the atom gains valence).
Hope this helps.
can someone give me good evidence please i will give you brainliest
Answer:
you can get evidence by observing how people have different traits from their parents, like one sibling can look different than they other sibling, they can get traits from older generations, like you can have a family that has black hair or dark brown and one of their kids got light brown hair because that was passed down or skipped through a generation.
Explanation: