Why do plant seeds contain oil
Answer: to store energy
Explanation:
Pls help with this biology question
How does myelin increase the speed of the action potential?
It insulates the axon and assembles specialized molecular structure at the nodes of Ranvier. In unmyelinated axons, the action potential travels continuously along the axons.
For example, in unmyelinated C fibers that conduct pain or temperature (0.4–1.2 μm in diameter), conduction velocity along the axon is 0.5–2.0 m/s (as fast as you walk or jog).
I hope this helps have a great day :)
In a population of cattle, the average body fat percentage is 10.5%. You select parents with an average body weight percentage of 20.8%. The offspring they produce have an average body weight percentage of 17.6%. Based on these data, what is the narrow-sense heritability of this trait
Heritability in the narrow sense -h²- refers to the proportion of the phenotypic variability that is influenced by genetic factors. In the exposed example, the narrow-sense heritability of this trait is h² = 0.689 ≅ 0.7
-----------------------------
Before answering the question, let us first review a few concepts.
The selection differential, SD, is calculated by getting the difference between the mean value of the desired trait in the population (X₀) and the mean value of the same trait expressed by parents, (Xs). So,SD = Xs - X₀
Heritability in the narrow sense -h²- is the measure of the genetic component to which additive genetic variance contributes.It referes to the proportion of the phenotypic variability that is influenced by genetic factors.
The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h² with the selection differential, SD.R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₁ - X₀
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
Population average body fat ⇒ 10.5% ⇒ X₀ Selected parents average body weight ⇒ 20.8% ⇒ XsOffspring average body weight ⇒ 17.6% ⇒ X₁We ned to get the narrow-sense heritability of this trait, h².
h² = R/SD
R = X₁ - X₀ = 17.6% - 10.5% = 7.1%SD = Xs - X₀ = 20.8% - 10.5% = 10.3%
h² = R/SD = 7.1% / 10.3% = 0.689 ≅ 0.7
The narrow-sense heritability of this trait is h² = 0.689 ≅ 0.7
-------------------------------------
You can learn more about Heritability at
https://brainly.com/question/20039057
brainly.com/question/25702725?referrer=searchResults
brainly.com/question/8090199
What are 3 inventions that came as a direct result of space exploration?
Answer:
NASA has addressed a lot of issues in space exploration through their inventions such as water filters, charge-coupled devices, lifeshears, scratch-resistant eyeglass lenses, cochlear implants, anti-corrosion coating and memory foam.
Explanation:
Which phrase correctly defines a gene?
O a complete protein
a segment of DNA
a segment of a protein
a part of the cell membrane
Answer:
A segment of DNA
Explanation:
Genes are parts of DNA
A gene is a segment of the DNA (deoxyribonucleic acid). DNA is the genetic material of the cell which contains the information for the development of different characteristics in an organism. Thus, the correct option is B.
What is a Gene?
A gene is the basic unit of heredity in an organism. It can also be defined as the molecular gene which is a sequence of nucleotides in the DNA molecule that is transcribed to produce a functional RNA which synthesizes a protein. There are two main types of molecular genes which include protein-coding genes and the noncoding genes.
Protein-coding genes or exons are the regions in the DNA which encodes for the synthesis of protein and the non-coding genes or introns are the segments of the DNA which does not code for any protein and thus are spliced in the post-transcriptional mechanism.
Therefore, the correct option is B.
Learn more about Gene here:
https://brainly.com/question/3187023
#SPJ2
Which structure is this statement most likely referring to
Answer:
semipermeable membrane is a large glucose molecule that requires facilitated diffusion but an oxygen molecule does not.
Which cell type would have the highest concentration of oxygen on a bright, sunny day?
Answer: The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest concentration of oxygen.
Explanation: i think is the answer not sure hope it help this question :)
whats released during cellular respiration
Answer:
During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate).
Igneous rock that forms from fava at or above Earth's surface:
a. organic rock
b. clastic rock
c. intrusive rock
d. extrusive rock
PLZ HELP
Answer:
Extrusive rock
Explanation:
there you go :)
a material similar to the earths mantle would be
A. Wood
B. Copper
C. water
D. silly putty
19. Which type of weathering is responsible for the green patina that forms on the copper skin of the Statue of Liberty
1.chemical
2.physical
3.dissolution
4.carbonization
Chemical weathering is mostly caused by water and the many chemical substances that are contained in it, copper skin of the Statue of Liberty is due to Chemical weathering, hence option 1 is correct.
What is Chemical weathering?One of the minerals that form rocks the most frequently chemically combines with water and other water-soluble substances to make clay.
Many weak acids, including carbonic acid, are present in water. Water, oxygen, and acids are the principal weathering agents in chemical reactions.
These interact with rocks on the surface to create new minerals that are stable in or in balance with the climatic and chemical conditions at the surface of the planet.
Therefore, the copper skin of the Statue of Liberty is due to Chemical weathering.
Learn more about weathering, here:
https://brainly.com/question/25479652
#SPJ2
Help me solve this question please
Answer:
where is the question .....?????
The portion of the membrane system in eukaryotic cells that is responsible for the making lipids and breaking down toxic substances in the
Answer:
The endoplasmic reticulum
Explanation:
this list of characteristics describes organisms in the _____ kingdom
I need help with my biology test. there are 6 questions.
1.True or False, There are only two broad categories called kingdoms.
2.True or False, Before classification begins, scientists first have to determine if the object is living.
3.True or False, Fungi are important agricultural organisms.
4. All living things are first classified into 5 broad categories called ______.
Class
Kingdoms
phyla
5. Animals with _____ belong to the subphlum vertebrata.
Four feet
Scales
Backbones
6. Binomial means ______ _______.
Greek names
Scientific Classification.
Two names
Answer:
1. False
2. True
3. True
4. Kingdoms
5. Backbones
6. Two names
Explanation:
I'm really sorry if I got it wrong, some of the questions are not in my Biology syllabus.
*first and second questions' answers are not sure
Guys how to convince my dad to give me money
Answer:
hey dad can i have some money
if he says no
then no
Explanation:
Answer:
First ask for a small amount than right after he gives you the small amount ask for a bigger amount
This trick works all the time
Explanation:
Tapeworms can reproduce by _____.
Answer:
There you go! they explained it better than I could. hopefully that helps you, for more information you could simply look up an article.
Are gender traits completely a result of societal expectations?
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Answer:nope there are no parts like that.
Explanation:
our body uses energy in the form of ATP which is a by product of respiration.
Glucose molecue is broken down into water and ATP molecule.
So our body only take oxygen from blood.
We don't have stomata all over our body dude!
Which of the following is a correct association?
Answer:
The first one
Explanation:
because it has the most words on their.
The correct association is option a.The cell synthesises proteins and organelles in the G2 phase (also known as the "Gap 2 phase") of the cell cycle in order to prepare for cell division.
The cell enters the G2 phase following DNA replication, which takes place during the S phase. In order to manufacture the elements required for cell division, the cell continues to expand and goes through further protein synthesis during this phase. These proteins play a role in the development of the mitotic spindle, control of cell cycle checkpoints, and cytoskeleton organisation.
The cell also creates organelles like the mitochondria and endoplasmic reticulum to make sure there will be enough energy and cellular building blocks for the impending division in the phase.
Learn more about cell division at:
https://brainly.com/question/29773280
#SPJ6
Some animals shiver as a natural, involuntary response to their environment. Shivering generates heat. This is an example of which function? reducing movement to regulate body temperature reducing movement to regulate blood glucose maintaining homeostasis by regulating body temperature maintaining homeostasis by regulating blood glucose
Answer: The answer is C!!! :D maintaining homeostasis by regulating the body's temp!
Explanation:
Shivering as a natural, involuntary response to generate heat is an example of maintaining homeostasis by regulating body temperature.
Homeostasis refers to the maintenance of a relatively constant body environment. The normal range of operation of the body system is known as the setpoint.
When the setpoint temperature for some animals is breached, a negative feedback mechanism is used to return it to the setpoint. Shivering to generate heat is a response to a cold environment when the body's temperature is about to drop below the setpoint.
The oppositeis sweating. Sweating causes cooling and comes in response to when the setpoint temperature is exceeded.
Hopes this helps happy early Christmas!!!! :D
Maintaining homeostasis by regulating body temperature.
What is shivering?Shivering is a mechanism used by animals, including humans, to maintain a constant body temperature in cold environments. When the body's core temperature drops below its normal range, shivering is an involuntary response that generates heat by rapidly contracting and relaxing the muscles.
This increased muscle activity requires energy, which is obtained from the breakdown of stored carbohydrates and fats, releasing heat in the process. This helps to raise the body's core temperature back to its normal range and maintain homeostasis, which is the body's ability to maintain a stable internal environment despite changes in external conditions.
Learn more about shivering, here:
https://brainly.com/question/1453495
#SPJ3
Stuck on these 2 questions
1. Llena los espacios en blanco
a. ___________________________ se refiere al conjunto de reacciones metabólicas que tienes que ver con la degradación de moléculas complejas. Estas reacciones__________________________ energía por lo tanto se definen como____________________________
Answer:
tacos and burritos
Explanation:
tacos and burritos
Which geographic concept is MOST EASILY seen in this picture? Cultural Diffusion Population Distribution Forms of Government International Borders
Define the term variation as it relates to living organisms.
What is an example of a population in a desert ecosystem
Answer:
scorpions
Explanation:
scorpions live in but the desert
In the American Midwest, native seed crops goosefoot, sumpweed, and sunflowers were farmed about ________ yBP.
In the American Midwest, native seed crops goosefoot, sumpweed, and sunflowers were farmed about 6,000-1,000 yBP. These crops were used by early Amerindians as sources of food.
The native seed crops goosefoot, sumpweed, and sunflower were used by early Amerindian natives as food prior to the arrival of the squash, beans and maize from Mexico.
The sunflower is nowadays a worldwide extended crop used in intensive farming due to its high yield and high nutritional value.
The first domesticated plants in Illinois about 1800 years before Common Era include goosefoot (Chenopodium berlandieri) and sunflower (Helianthus annuus L.).
Learn more in:
https://brainly.com/question/15355903
List the eight most abundant elements of the Earth's Crust
The bacteria that is responsible to convert ammonia to nitrates is called
Group of answer choices
E coli
denitrifying bacteria
nitrifying bacteria
Answer:
nitrifying bacteria
Explanation:
Which of the following human actions negatively affect the water cycle by increasing evaporation?
Answer: Hydroelectricity
Explanation: None Sorry
Burning of fossil fuels adversely impacts on the water cycle that adversely affect the climate on Earth.
Human activity such as the burning of fossil fuels in vehicles and burning of wood for cooking have adverse effect on the earth's atmosphere. This burning of fossil fuels increase the temperature of the earth leads to global warming.
Raising the Earth's temperature means that there is an increase of evaporation, melting of glaciers and sea ice which imbalance the water cycle leads to flood and drowning of coastal regions of the earth so we can conclude that burning of fossil fuels adversely impacts on the water cycle that adversely affect the climate on Earth.
Learn more: https://brainly.com/question/25831083