Answer:
This is controlled by muscles in the iris which will constrict or enlarge the pupil.
Explanation:
Replacing a nitrogen base with another is an example of what type of mutation?
Answer:
The answer is c substitution
ASAP Need Help Thankyou
Passive transport moves molecules_____their concentration gradient (its not move)
Answer:
I think it's: down
Explanation:
Do energy levels have plants in them
Why is genetic diversity important?
Answer:
Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. ... Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.
Explanation:
Answer: Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population
Explanation:
Why is nutrition important for health?
Answer:
To make sure you body works properly
Explanation:
If you have good nutrition you body will work like it should and you will have an great body and a long life.
Answer:
Here's some reasons:
- It can reduce the main risk of diseases and strokes.
- Improves your body's recover progress.
- Boosts energy
- Increases mental strength
- Reduces blood pressure
- Reduces chance of diabetes
- Reduces chance of heart cancer, breast cancer, rib cancer, brain cancer, and some more types of it too.
Hope this helped you out! :)
Imagine that y-axis of each graph describes the rate of photosynthesis. Which of the graphs represents the
effect of light intensity on the rate of photosynthesis?
a. A
b. B
c. C
d. D
Answer:
a. A describes the effect of light intensity on photosynthesis.
Explanation:
In plants and other primary producers, photosynthesis is a biological mechanism that is vital to energy production. Energy-containing carbohydrates are derived from light, water and carbon dioxide in the form of glucose molecules.
The waste product oxygen is released as a result. Photosynthesis depends on many variables, including:
carbon dioxide concentration, ambient temperature and light intensityIt is a rate-limited reaction. Since photons or particles of light provide the energy required for the reaction, high intensities of light increase the photosynthetic rate. From the graph shown, as the intensity increases steadily, so does the rate- but at too high of an intensity, it ceases to affect the rate of photosynthesis, which becomes constant or plateaus.
Beyond this point, either the supply of carbon dioxide or the temperature limits the reaction. For instance, at high intensities tissues may even be damaged by high temperatures or heat.
A solution that has 0% salt is____to a cell with 40% salt concentration
Answer:
The solution is hypotonic
Explanation:
Molecules in a solution move from highly concentrated regions to regions of low concentration in an effort to reach a state of equilibrium- where the molecules are equally distributed. This always occurs with the molecules moving down the concentration gradient.
Solutions can be:
hypertonic, or more concentrated; hypotonic- less concentratedisotonic- same concentrationAt 40% salt concentration, solution A is hypertonic while the less concentrated solution at 0% salt concentration is hypotonic.
where is epithelium tissue located
Answer:
Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs. An example is the epidermis, the outermost layer of the skin.
- Wikipedia
Answer:
Epithelial tissues are widespread throughout the body.
Explanation:
they are major tissue located inglands
Lactic acid fermentation occurs in muscle cells when levels are low. When builds up in muscles it causes pain and muscle fatigue. Usually, the lactic acid diffuses into the bloodstream over time and is filtered out by the and converted into glycogen and then to glucose. However, with proper training, lactic acid can transfer to the of muscle cells, where it is broken apart for its energy. HighLighter PopupUnderline Selected TextGreen Color HighlightOrange Color HighlightYellow Color HighlightBlue Color HighlightPink Color HighlightRemove Color Highlight
Answer: Oxygen, Lactic acid, liver, mitochondria
Explanation: Lactic acid fermentation occurs in muscle cells when OXYGEN levels are low. When LACTIC ACID builds up in muscles it causes pain and muscle fatigue. Usually, the lactic acid diffuses into the bloodstream over time and is filtered out by the LIVER and converted into glycogen and then to glucose. However, with proper training, lactic acid can transfer to the MITOCHONDRIA of muscle cells, where it is broken apart for its energy.
Lactic acid is produced as the byproduct of the anaerobic respiration. The correct answers are oxygen, lactic acid, liver, and mitochondria.
Lactic Acid Fermentation:
During the intense exercise, body become unable to fulfill the need of oxygen. Hence, body start producing energy anaerobic respiration and produce a by-product, lactic acid. This results in build up of the lactic acid in muscle which cause muscle fatigue.
Lactic acid fermentation occurs in muscle cells when Oxygen levels are low.When lactic acid builds up in muscles it causes pain and muscle fatigue. The lactic acid diffuses into the bloodstream over time and is filtered out by the Liver and converted into glycogen and then to glucose. With proper training, lactic acid can transfer to the Mitochondria of muscle cells, where it is broken apart for its energy.Therefore, the cell reprocess the lactic acid to produce glucose.
To know more about Lactic Acid Fermentation, refer to the link:
https://brainly.com/question/11502989
What is a thermocline?
Answer:
a steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.
Explanation:
Hope this helped if so please leave a rating! :)
THANKS
What affects the function of enzymes
is this a multiple choice question? I took biology 2 years ago so I'm not 100% positive but I'm pretty sure they help to speed up reactions
Can someone please help me?
Answer:
a) 1:4 (25%)
b) 1:4 (25%)
c) Carrier females have the genotype XFXf.
d) There are four possible genotypes, XFXf, XfXf, XFY, XfY
Explanation:
The mutation for hemophilia is on the X chromosome. Females have two X chromosomes and males have one.
Let's say that the mutated allele is f and the normal allele is F.
A carrier female has the genotype XFXf. A hemophilic man has one X chromosome. and since he is affected, must have the mutated allele. He must have the genotype XfY.
The punnett square below shows the cross
XF Xf
Xf XFXf XfXf
Y XFY XfY
a) As we saw, carrier females have the genotype XFXf. In the cross, there 1:4 chance that phenotype will occur.
b) A normal male has the genotype XFY. In the cross, there 1:4 chance that phenotype will occur.
c) Carrier females have the genotype XFXf.
d) There are four possible genotypes, XFXf, XfXf, XFY, XfY
If you put a cell in water with a higher salt concentration then the cell has,
then water will move
1 pc
A into the cell.
B it will not move in or out of the cell.
C out of the cell.
O Dit will move in and out in equal amounts.
Which image shows a cell that has a higher concentration of salutes inside
Tin
Answer:
The answer is C
Explanation:
Water will move out of the cell through the process of osmosis.It is when water molecules moves from a dilute solution to a more concentrated solution.
I hope this helps in any way :)
state the difference between the two methods.
Answer:
They look different
Explanation: Look at them. Yes ok good
What has the structure of the DNA molecule been compared to?
A straight ladder
A staircase
A twisted ladder
An escalator
Dissolved substances have to pass through a _________________
to get into and out of a cell.
Diffusion is ONE process that allows this to happen.
Examples of substances: ______,______,______,
________,_______
All living things rely on diffusion to live. They use it for:
Getting __________
Removing_________
Plants use of________
Answer:
1. Partially Permeable Cell Membrane
2. Water/Carbon Dioxide/Oxygen/Lipids/Bacteria
3. raw materials for respiration/waste/photosynthesis
Explanation:
Hope this helps and good luck on your studies! :)
A gene mutation in which one base pair in a DNA sequence is replaced with a different pair is a ______________________.
Duplication
Inversion
Substitution
Translocation
Answer:
Substitution
Explanation:
Most common
Pls help and Thx!! What is considered an object's half-life?
What does the Teacher's Pet Video: Mitosis and Meiosis give as the main reason for the production of haploid cells during meiosis?
O because the two haploid cells will fuse together to make a new genetically different diploid cell that will form the offspring
O because the sperm brings all of the father's genes to the egg allowing for the baby to have a different number of chromosomes
c. because the egg and the sperm will then be able to each form a new diploid offspring through the process of mciosis
d. because both the parents' and offspring's diploid cells will then be genetically identical to one
Answer:
The main reason for the production of haploid cells during meiosis is because the two haploid cells will fuse together to make a new genetically different diploid cell that will form the offspring.
Explanation:
In the context of sexual reproduction, meiosis is the process of cell division by which gametogenesis occurs. In this process, diploid cells are used to obtain haploid cells, called gametes.
The reduction of the chromosomal charge that occurs in meiosis is aimed at producing haploid cells —with half of the crosmosomes of a species— so that when the parents' gametes join, they form a diploide cell called zygote.
Zygote is the starting point for the development of a new individual, part of the offspring.
William is developing the model shown below to illustrate the process of photosynthesis. He plans to use the model to explain how
photosynthesis transforms both energy and matter.
H20
CO2
TRUJILLC
NADPH
ATP
ADP
NADP -
02
Sugars
Earth systems include the biosphere, atmosphere, and geosphere. Use the model to explain how photosynthesis acts to transfer carbon
between two Earth systems.
Answer:
Photosynthesis serves as a process of transferring carbon between the atmosphere and the biosphere by using carbon dioxide present in the atmosphere to produce sugars found in plants.
Note: The model is found in the attachment below
Explanation:
The atmosphere is the layer of gases forming an envelop around the earth. The earth's atmosphere is composed of mainly nitrogen and oxygen as well as other gases such as carbon dioxide and water vapor.
The biosphere refers to the regions of the earth's surface on which living organisms can be found. It includes the land, air and water.
Carbon dioxide is cycled between the atmosphere and the biosphere by the process of photosynthesis which is the process by which green plants manufacture their food with the aid of energy from sunlight.
From the model, in the first stage, energy of sunlight is trapped by light-dependent reactions and is used it to make ATP and NADPH. During the second stage, the light-independent reactions use ATP and NADPH reduce carbon dioxide from the atmosphere to sugars and ADP and NADP⁺.
Thus, photosynthesis serves as a process of transferring carbon between the atmosphere and the biosphere.
Worth 10 points. Plz help.
What two things do organisms need for the process of cellular respiration?
A. oxygen, and sugar
B. Water and oxygen
C. Carbon dioxide and water
D. Carbon dioxide and oxygen
E. Sunlight and water
Answer:
c.
Explanation:
Why's it good for the strangler fig to be in a relationship that's commensalism?
How is asexual reproduction advantageous to an organism while still putting it at a disadvantage?
A. It produces genetic variation among offspring but takes time and energy to find a second parent.
B. It is quick and only requires one parent but produces genetic variation among offspring.
C. It is quick and only requires one parent but produces genetically identical offspring.
D. It produces genetically identical offspring but takes time and energy to find a second parent
Answer:
It produces genetically identical offspring but takes time and energy to find a second parent
Explanation:
The answer should be It produces genetically identical offspring but takes time and energy to find a second parent.
Hope this helps you
Will mark brainliest!
Please look at ALL the questions above !
Please make sure all the answers are correct someone tried to help me but still got it wrong ...
Answer:
1. C
2. A
3. D
4. B
Explanation:
Hope this helps
:)
What are 3 parts of the modern cell theory
1.All living things are composed of cells.
2.Cells are the basic units of structure and function for living things.
3.All cells come from pre-existing cells.
Hop this helps
Which of the following describes a community? *
a. The plants, animals, fungi, and bacteria living in an area
b. The plants, animals, fungi, bacteria, rocks, sunlight, water, and climate in an area
c. A group of brown pelicans that live in the same area and reproduce
d. When a snake and a hawk compete for the same prey item.
Answer:
b
Explanation:
Since a community is the animals living there and their environment, I would choose b.
According to the TED Talk video with Richard Turere, what observation did he make about the natural world around him?
A. the lions were killing the people of his village
B. the lions were killing the cattle in his father's herd
C. the elephants were getting into his village
D. the lions were keeping up too much noise in his village
where is plant tissue located
Answer:
Parenchyma – These tissues are found in the soft parts of a plant such as the roots, stems, leaves, and flowers. The cells of this tissue are loosely packed and contain large intercellular spaces between them. Each cell has a vacuole at the center.
Explanation:
What is the reason for continental drift?
Answer:
Wegener suggested that perhaps the rotation of the Earth caused the continents to shift towards and apart from each other. (It doesn't.) Today, we know that the continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics.
Explanation: