Answer:
is a sex cell.
Explanation:
The sperm cell is made up the head and the tail.
The head contains the DNA and genetics;while the tail gives it , the momentum it needs to reach it's desired target, and then fertilization occurs.
thanks.
Can anyone help me with the lab please or send theirs ill appreciate it
Which of the following statements best explains how the energy in a photon of light is stored in a molecule of
the sugar G3P?
a)Light energy directly provides energy to RuBP and CO2, which produce G3P in the Calvin cycle.
b) Light energy directly provides energy to ATP synthase, which produces ATP during the light reactions.
c)Light energy energizes electrons to make ATP and NADPH, which provide energy to produce G3P in the Calvin cycle
Answer:
c) Light energy energizes electrons to make ATP and NADPH, which provide energy to produce G3P in the Calvin cycle
Explanation:
Photosynthesis is a metabolic process carried out by the cells of autotrophic organisms. The process involves synthesis of food (glucose) using light energy. Photosynthesis involves two processes viz: light-dependent stage and light-independent stage.
The light dependent stage of photosynthesis occurs in the thylakoid membrane of the CHLOROPLAST, where Chlorophyll pigments capture photons of light from the sun. The Chlorophyll becomes activated and provides energy to build a proton pump, which eventually powers the synthesis of ATP and NADPH molecules.
The ATP and NADPH molecules enter into the stroma of the CHLOROPLAST, where the light-independent or Calvin cycle takes place. In the Calvin cycle, ATP provides energy while NADPH supplies electrons that produce Glyceraldehyde-3-phosphate (G3P) molecules.
The statement best explains how the energy in a photon is stored in G3P is that light energy energizes electrons to make ATP and NADPH, which provide energy to produce G3P in the Calvin cycle (Option c).
During photosynthesis, sunlight excites electrons from chlorophyll in a process that triggers the synthesis of ATP and NADPH.The Calvin cycle is a metabolic pathway by which plants convert carbon dioxide (CO2) from the air into glucose molecules during photosynthesis.Glyceraldehyde 3-phosphate (G3P) is the prime end-product of the Calvin cycle. A G3P molecule has three carbon (C) atoms, thereby two molecules of G3P are required to produce a six-carbon sugar (glucose) molecule.In conclusion, the statement best explains how the energy in a photon is stored in G3P is that light energy energizes electrons to make ATP and NADPH, which provide energy to produce G3P in the Calvin cycle (Option c).
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Which of the following is a plant structure that aids in water retention?
A) Cellulose
B) Cuticle
C) Vascular tissue
D) Cell wall
Answer:
A
Explanation:
it holds water in the plant
The shape of neurons allows them to do which of the following more efficiently?
Question 13 options:
Deliver oxygen rapidly throughout the body
Give rise to other pluripotent cells
Generate powerful muscle contractions
Transmit messages from cell to cell at high speed
Answer:
Transmit messages from cell to cell at high speed
Answer:
Transmit messages from cell to cell at high speed
Explanation:
The shape of neurons allows them to transmit messages from cell to cell at a higher speed. Neurons are long and branched, making it easy to connect from neuron to neuron. The shape of neurons isn’t well designed for transporting oxygen, generating muscle contractions, or giving rise to pluripotent cells.
Are hummingbirds attracted to the color red?
Answer:
Yes, Since hummingbirds can see red shades more easily they can quickly pick out the flowers that are most likely to be plentiful sources of nectar.
Explanation:
Red flowers, and of course red feeders, are often rich sources of food for hummingbirds. The color red often signals high-octane fuel for their intensely active way of life.
Hope This Helps!
Answer:
The hummingbirds are likely seeking out red blossoms or making a beeline for a backyard nectar feeder accented with red plastic
Explanation:
The color red often signals high-octane fuel for their intensely active way of life
hope this helped you
what is the unique feature of meristem tissues? How do they differ from permanent tissues?
Answer:
Meristematic tissues have capacity to divide qhere permanent tissue do not have. Meristematic tissue have thin cellulose wall whereas permanent tissue has thick cellulose wall. Meristematic tissue do not have intercellular space whereas permanent tissue has large intercellular space.
Explanation:
Hope it helps
Which step is common to both creating a new document and saving a document?
O clicking the File tab
O clicking the New tab
O clicking the Save As tab
O clicking the Blank document icon
Answer:
1. step 2
2. step 6
3. step 3
4. step 4
5. step 7
Explanation:
YOUR WELCOME BABES!!!
characteristics of green buildings
Answer:
Efficient use of energy, water and other resources.
Use of renewable energy, such as solar energy.
Pollution and waste reduction measures, and the enabling of re-use and recycling.
Good indoor environmental air quality.
Use of materials that are non-toxic, ethical and sustainable.
Answer:
Efficient use of energy, water and other resources.
Use of renewable energy, such as solar energy.
Pollution and waste reduction measures, and the enabling of re-use and recycling.
Good indoor environmental air quality.
Use of materials that are non-toxic, ethical and sustainable.
Explanation:
A landscaper is shopping for landscaping materials. She wants to use materials through which water flows easily.
Which materials should she choose? Select THREE options.
clay
gravel
granite
rocks with cracks
loosely packed soil
Answer:
gravel, rocks with cracks, loosely packed soil
Explanation:
all tree has room for water to flow through
1. Lynn is a 2-year-old girl. Her mom and she like to play a game where her mom pretends to
have one of Lynn's stuffed animals, a little monkey, tickle Lynn's feet. Actually, Lynn's mom is
doing the tickling. Lynn laughs and kicks her legs reflexively whenever her feet are tickled. Now,
if Lynn sees her mom grab hold of her stuffed monkey, Lynn starts to laugh and kick her legs.
Neutral Stimulus:
Unconditioned Stimulus:
Unconditioned Response:
Conditioned Stimulus:
Conditioned Response:
Answer:
Conditioned response.
Explanation:
Lynn was conditioned to kick her legs as a response to whatever happens after her mom grabs the monkey.
Which of the following does not involve the X chromosome? a Triple X b Sickle Cell anemia c Rett syndrome d Color blindness
Answer:
The answer is D.
Explanation:
Colour blindness is affected by the genes in our DNA not X chromosome.
(Correct me if I am wrong)
Identify the two body systems that identify when your body temperature lowers and then shivers to keep you warm.
The rock pocket mouse and human skin color are examples of evolution in that they both?
a have the MC1R gene and melanin differences
b the environment and nature affects which color is more fit
c there is an advantage of being one color over another
d all of the above
The gravitational pull of this type of tide causes the Earth's water levels to be either extremely high or
extremely low.
A.neap tide
B.O proxigean tide
C.sun tide
D.spring tide
Two enzyme-controlled reactions are shown.
From these reactions, what deduction can be made about enzymes?
A Enzyme 1 has been changed to enzyme 2.
B Enzyme 2 slows down the production of amino acids.
C Enzymes can build up large molecules.
D Enzymes only break down large molecules.
Thank you!
Answer:
B&D
Explanation:
Proteins that acts as a biological catalyst are called enzymes. The substrate acts on the active site of enzymes to form an enzyme-substrate complex, which produces the desired product.
The correct answer is:
Option D. Enzymes only break down large molecules
This can be explained as:
Enzymes help in breaking the large molecule into smaller molecules.The smaller pieces are more easily and readily absorbable by the body.They are very selective that is they catalyze specific types of reactions only.Protease breaks the proteins into amino acids, they break the peptide bonds present in the amino acid chains.Therefore, enzymes can break down large molecules.
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Which scenario causes gene flow?
A:one flower pollinates other flowers in its population
B: a population size decreases after a natural disaster
C: new mutations arise within new populations
D: an animal moves to a new population and mates
Answer:
D: an animal moves to a new population and mates
Explanation:
Gene flow, also known as gene migration, is the transfer of genetic material (DNA) from the population of a species to another population of the same species. Gene flow can be caused by migration of one member of a particular population that interbreeds in another population or due to aided transfer of gametes from one population to another, as in the case of cross-pollination.
Based on the above definition, an animal moving from its own population to a new population and mates there represents a scenario that causes gene flow.
In the first option, one flower of a population is pollinating another flower in the same population. This doesn't show gene flow because there is no transfer of genes (present in gametes) to a different population.
Climate 101: Deforestation Questions
1. Forestry and Agriculture are responsible for what percentage of greenhouse gas
emissions?
2. What are 2 ways that deforestation impacts the emission of greenhouse gas emissions?
3. How does agriculture cause deforestation?
4. What is the best solution to reduce deforestation and why?
5. What solutions would you give to families who rely on deforestation to live and provide for
themselves. (I say this because it is a very complicated problem)
Answer:
1. I can’t think of the percentage off the top of my head, but I have the rest of the answers:
2. By cutting down trees, you are releasing the carbon dioxide that the trees were previously storing, and deforestation also limits the amount of trees available to take part in photosynthesis.
3. In order to have agriculture, you must have land to grow the food on; in order to get this land, some people need to burn jungles and rainforests for more space (what‘s currently happening in the Amazon).
4. Set incentives for the government. This encourages them to not chop down trees, as there will be a visible benefit.
5. I would say education. It’s difficult in less developed countries, because it truly is all that they rely on; but through education, people can at least be aware of what they are doing so when the time comes they will be able to stop it.
Explanation:
Which of the following best describes the function of DNA within a cell
Answer:
is the blue print of the cell
Explanation:
it contains all of the genetic code to make the cell into it's functioning part
The function of DNA in a cell is to transmit genetic information or instructions from one generation to another.
What is DNA?Deoxyribonucleic acid or DNA is a genetic material that contain the genetic constituent of a cell which are pass down from parent to their offsprings or from one generation to another.
Therefore, The function of DNA in a cell is to transmit genetic information or instructions from one generation to another.
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Which factor most directly affects the wind speed between two locations?
Answer:
Air pressure
Explanation:
Lesson Question:How can the presence of
one species benefit another in the same
ecosystem?
Check all correct elements below that you
included in your question.
independent variable: presence of one
species (here, worms)
dependent variable: effect on another
species (here, lima bean plants)
relationship: benefit
DONE
The given question is incomplete question as it lack essential part of question which is :
Ex: Write a hypothesis about the worms and lima bean plants. Be sure to answer the lab question.
Answer:
The correct answer would be : If plants grow in soil with worms, then growth of the lima bean plant will be greater due to worms helps in decomposing organic matter.
Explanation:
In this hypothesis the one species benefits other species in the same ecosystem they both exist. According to the hypothesis presence of the worms helps in the growth of the lima bean plants.
Dependent variable is a variable that depends on change in independent variable. Here the change in the presence of worms affects the growth of the bean plants so, the dependent variable is bean plant and the independent variable is presence of the worms.
Thus, the correct answer is : If plants grow in soil containing worms, then plant growth will be greater, because worms help decompose organic matter
Hypothesis: If plants grow in soil containing worms, then plant growth will be greater,
Explanation:
because worms help decompose organic matter and distribute it through the soil in a form that plants can use.
Explain why trees in temperate rainforest and tropical rainforest don’t lose their leaves. I need help plz someone help me !!!!
They don't lose their leaves because of the humidity in the forest.
Describe at least two ways in which the evidence for the flat earth theory in the article fails to be scientific
Answer:
The flat Earth thoery in the article fails to be scientific since
1. gravity exists. gravity pulls objects toward the core of Earth and if Earth is flat, satelites and the moon will not be able to orbit around Earth.
2. We can tell that Earth is not flat by observing the moon and sun. If Earth is flat, there will be no timezone. One side of Earth will receive sunlight and the other will not, so obviosuly, Earth is not flat.
Explanation:
Little Jimmy drank 4 different energy drinks and water. After each drink he timed himself running the 50 yard dash. The water in this experiment is * -the independent variable -the dependent variable -a control -the hypothesis
Answer:
Water is a control
Explanation:
From the question, the independent variable is energy drink and the dependent variable is running 50 yard of ash.
An independent variable is a variable that can stand alone in an experiment.
Dependent variable is a variable that is beeping altered, tested and measured and it's dependent on the independent variable.
The running of 50 yard Yash depend on the energy drink which is independent.
Water is a control because it is not tested for dependent variable and it's minimize the effect of dependent variable. This is because the energy drink give energy to run 50 yard Yash and that is the dependent variable.
Initially, glucose was found only the dialysis tubing. After 15 minutes, a sample was taken. That sample showed that glucose was found the dialysis tub
Answer:
inside, outside
Explanation:
Answer:
1. inside
2. outside
3. c
Explanation:
To what extent was this experiment useful in determining pH? Could a specific pH be determined using this procedure?
1. My hypothesis was that The house hold liquids such as lemonade clear soda and the clear shampoo would be acidic where as the baking soda dish soap and fertilizer would be basic. my hypothesis was somewhat correct all but the soda was correct by the looks of the colors.
2. Some liquids required more because the strength of the acidity or base wasn't very strong thus requiring a larger amount of liquid added to the cabbage indicator.
3. At the end of the experiment when the vinegar and baking powder were added together the colors mixed into a mix of the two more purple then the cabbage indicator and there was plenty of bubbles in the solution.
4. Not very useful unless you know exactly what the colors indicate. Yes, all that would be needed is a ph scale.
5. Acids and base indicators help us identify whether a substance is acidic or basic . They can be used to detect the nature of soil , samples etc which can be helpful.
Which of these is a drawback of extraction using hydraulic fracturing?
Answer:
D. Contamination of groundwater
Hydraulic fracturing is also called as fracking. It is a drilling process which is used for the excavation of oil and natural gas from the shale rock beneath the earth crust. In this the hydraulic pressure is used by using the chemicals mixed with sand and water. This water is injected forcefully into the rocks. The gas or oil comes out from the gaps created. This process can contaminate the groundwater reservoir.
Answer: Higher risk of oil spills
Explanation:
XB or Xb
**Y always stays blank**
Fill out the following table:
Genotype: XBXB
χθY
xBx
Xby
X®хь
Phenotype:
Perform the following crosses for male pattern baldness:
1. A non-bald, non-carrier female with a bald male.
Write out the genotype probabilities:
a
b. Write out the phenotype probabilities:
2. A female carrier and a normal male.
a. Write out the genotype probabilities:
b. Write out the phenotype probabilities:
3. A bald male with a carrier female.
a. Write out the genotype probabilities:
b. Write out the phenotype probabilities:
sound waves can only travel through fluids
TRUE or FALSE
Answer:
false
Explanation:
Sound waves need to travel through a medium such as a solid, liquid, or gas. The sound waves move through each of these mediums by vibrating the molecules in the matter. The molecules in solids are packed very tightly. Liquids are not packed as tightly as solids. And gases are very loosely packed.
Answer:
False
Explanation:
because sound waves can also pass through a solid and gas as well as liquids.
Assume Kira went out to eat after the dance competition and consumed an excessive amount of carbohydrates. Which of the following would the pancreas do in order to help her body maintain homeostasis?
A. Secrete glucagon, to stimulate her liver to break down glycogen
and release more glucose into the blood
B. Secrete glucagon, to stimulate her liver to take up the glucose and store it as glycogen
C. Secrete insulin, to stimulate her liver to break down glycogen and
release more glucose into the blood
D. Secrete insulin, to stimulate her liver to take up the glucose and store it as glycogen
Answer:
D. Secrete insulin, to stimulate her liver to take up the glucose and store it as glycogen
Explanation:
Insulin and glucagon are two body hormones that help regulate the level of sugar in the blood, which is an homeostatic process. When food containing carbohydrate is ingested like Kira did after her dance competition, the body digests it into glucose (a sugar). The glucose enters into the bloodstream to be used up as energy source.
At this point, the level of sugar (glucose) in the blood increases, triggering the production of INSULIN hormone by the pancreas. The insulin hormone signals the body cells to absorb the glucose. In order to keep in check the excessive amount of sugar in the blood, some of the cells e.g. liver cells are signalled by insulin to store the excess glucose as glycogen, which will be converted back to glucose later by glucagon hormone when glucose is short in the blood.
WILL GIVE BRAINLIEST!!!!What are the similarities and differences in the way geologists and biologists approximate the age of the earth? Justify your response in two or more complete sentences.
Answer:
Geologists can determine the age of an rock by studying it. However biologists study the evolution of fossils.
Explanation:
Geologists can determine the age of the Earth by studying the rocks and how long it took / takes them to form. Some similarities in their way of studying the Earth are the study of fossils. Both geologists and biologists study the evolution of fossils.
further information:
Geologists study Earth processes: Many processes such as landslides, earthquakes, floods, and volcanic eruptions can be hazardous to people. ... Geologists conduct studies that locate rocks that contain important metals, plan the mines that produce them and the methods used to remove the metals from the rocks.
Biologists study humans, plants, animals, and the environments in which they live. They may conduct their studies--human medical research, plant research, animal research, environmental system research--at the cellular level or the ecosystem level or anywhere in between. ... Biologists generally love what they do.
in conclusion, geologists are able to tell a rocks age by studying it but biologists can only study the age of fossils
hope this helped!
Answer:
In order to determine the age of rocks, Geologist takes advantage of basically two techniques that differ in their process and accuracy, these are relative dating and absolute dating.
Put simply, if a geologist says to be younger than his or her colleague, that is a relative dating. If a geologist says to be 28 years old, that is an absolute dating.
Relative dating relies on a set of principles, formulated by geologists that can be applied on different types of rocks (sedimentary or volcanic) on the Earth's surface to determine the relative ages of geological events kept in rocks as a record of such events. Together with these principles, geologist uses the arrangement of rock layers to estimate the relative age of rocks with it. This process is called stratigraphy, and a branch of it, called sequenced stratigraphy seeks to determine the order or sequence in time in which rocks were laid in the available space –or accommodation in geologist terms- The principles stated before are Superposition, Faunal succession, Crosscutting relationships, and Inclusions.
It is common that geologists come across gaps in the geologic record, for which they use “index fossils” to define and identify geologic periods, which helps relatively date rocks ages.
By the other hand, absolute dating puts a specific number on the age of rocks (say 25 million years sold i.e.) with the use of more precise techniques. In this case, this method provides chronologically organized estimates of the age of geological materials related to fossils. Since elements such as calcium and potassium decay in their radioactivity, this phenomenon is used by geologists as a clock to determine the age at which rocks or fossils were formed. Knowing this, geologist design procedures called radiometric dating methods to date ancient events with the use of elements radioactivity decay.
Explanation:
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