Please help me I promise to mark u the brainiest and give you 40 points please can somebody help me!!
How does genetic variation allow humans to survive long-term?
Which type of reproduction is responsible for genetic variation?
Answer:
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population. Sexual reproduction promotes genetic variation by producing different gene combinations. Meiosis is the process by which sex cells or gametes are created. Genetic variation occurs as alleles in gametes are separated and randomly united upon fertilization.
Which diagram most correctly represents the process of mitosis?
Answer:
B
Explanation:
Division of 2 identity.
This part of the CPU is where the processing actually takes place.
Arithmetic Logic Unit
Register
Control Unit
Does anybody know how I can get these answers ?
Why fish are a good example of natural selection
Answer:
Here are some examples of natural selection: In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.
Explanation:
Some genes are important enough to be called "molecular switch" or "master" genes. What is the purpose of these genes?
A. They control when other genes are expressed
B. They determine the organization of the genome
C. They regulate cell metabolism
D. They modulate the rate of translation
Answer:
Genes called "molecular switch" or master genes have the purpose of control when other genes are expressed (option A).
Explanation:
Master gene is so named because it has the function of controlling the behavior of other genes, organizing their functions and regulating when they can be expressed.
The name of molecular switch is synonymous with the master gene, since its activation determines the genetic regulation necessary to establish cell differentiation and even the determination of the sex of some species.
The other options are not correct because:
B. Master genes do not determine the organization of the genome .
C. Regulation of cell metabolism depends of substances as hormones and enzymes.
D. The rate of translation does not depend on the activity of master genes.
Zeke is trying to plant a garden but he does not have much space. Zeke decides to trim the ends of the roots of the plants he is putting in his garden. After a week, Zeke notices that his plants did not grow at all. Explain why this happened.
Answer:
Zeke has cut the meristematic cells at the root tip, hence, the root will not elongate to get nutrients and water needed for plant growth.
Please find more explanation below
Explanation:
The root tips of a plant contain cells that actively divide, hence, causing growth or elongation of the roots. This allows the root to grow or penetrate into the soil in search of nutrients and water needed for the plants growth.
According to this question, Zeke decided to trim the ends of the roots of certain plants he is putting in his garden due to lack of space. However, he later discovered that these plants did not grow at all. This is because Zeek has cut off the root tip that contains the MERISTEMATIC CELLS responsible for the elongation of the roots into the soil. Hence, the roots are unable to absorb water and nutrients for the plant, preventing the overall growth of the plant.
Help!!!!!!!!!!!!!!!1
Answer:
B
Explanation:
Most logical answer.
6 How can you determine the origin of the oxygen released by photosynthesis?
Answer:
because all green plants release oxygen and non- green plants do not release oxygen.
Explanation: One of the first uses of an isotopic tracer in biology was in the determination of the source of the oxygen produced by photosynthesis. Using a heavy isotope of oxygen, 18O, to label one of the two reactants in the photosynthetic process, Samuel Ruben and collegues at UC Berkeley were able to determine that the oxygen gas came not from carbon dioxide, but water.
Which component of a galaxy is colorful and found in the space between stars?
a
Dust
b
Gas
c
Orbiting objects
d
Stars
Answer:
The answer would be Gas or Hydrogen.
Explanation:
Hope it helped ;)
En un cruce entre peces naranjas y peces grises se obtiene una generación (f1) de 50% peces grises . Realice el cruce y explique lo ocurrido dato: el color naranja es dominante sobre el color gris
Answer:
Uno de los progenitores es heterocigoto para color naranja (Nn) y el otro parental es homocigoto recesivo para gris (nn). Al haber una cruza entre un homocigoto recesivo y un heterocigoto, la 50% de la progenie expresa color naranja (Nn), mientras que el otro 50% expresa color gris (nn).
Explanation:
Datos disponibles:
Cruce entre peces naranjas y peces grises50% de la F1 son peces grisesNaranja dominante sobre grisPodemos nombrar el alelo dominante para color naranja N, y al alelo recesivo para color gris n.
Para que en un cruce entre dos fenotipos distintos, el 50% de la primer camada exprese uno de estos fenotipos, entonces uno de los parentales debe ser heterocigoto, mientras que el otro parental debe ser homocigoto recesivo. De esta forma 50% de la primera generación expresara uno de los fenotipos, mientras que el otro 50% expresará el otro fenotipo.
Supongamos que uno de los parentales lleva el genotipo Nn, y el otro parental es nn.
Cruce:
Parental) Nn x nn
Gametas) N n n n
Fenotipos) Naranja Gris
Cuadro de Punnett) N n
n Nn nn
n Nn nn
F1) 2/4 = 1/2 = 50% de la progenie tendrá genotipo heterocigoto, Nn
2/4 = 1/2 = 50% de la progenie tendrá genotipo homocigota recesivo,
nn
50% de la progenie será color naranja (Nn)
50% de la progenie será color gris (nn)
Condensation: the ______ off of ______ in the air in the ______
HELP ME PLSSSSSSSSSSSSS
Answer:
Explanation:
CAN SOMEONE LOOK ON MINES AND HELP ME LOL
To move the objective lens up and down, I would turn the _________ __________ dial. Which two words complete the sentence?
Answer:
handle and the dial is the correct answer
8. Which of the following is a polysaccharide?
sucrose
cellulose
fructose
glucose
Answer:
Cellulose i think?
Explanation:
Answer: Glucose
Explanation: Glycogen is a large, branched polysaccharide that is the main storage form of glucose in animals and humans. Glycogen is as an important energy reservoir; when energy is required by the body, glycogen in broken down to glucose, which then enters the glycolytic or pentose phosphate pathway or is released into the bloodstream. Glycogen is also an important form of glucose storage in fungi and bacteria.
Question 3 of 10
The reactants when fossil fuels are burned are shown below. What are the
products of this reaction?
Fossil fuel + oxygen gas → ?
A. Nitrogen gas + heat
B. Water + heat
C. Carbon dioxide + water + heat
D. Carbon dioxide + fossil fuels
A skier is going down a hill at a speed of 9 m/s. The hill gets steeper and her speed increases to 18 m/s in 3 s. What is her acceleration?
1. Explain why fossil evidence is consistent
with the scientific theory of evolution. sc.7.L.15.1
Explanation:
The Fossil Record
Fossils of the simplest organisms are found in the oldest rocks, and fossils of more complex organisms in the newest rocks. This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones.
Evidence for early forms of life comes from fossils.
If a DNA strand reads ACG TGC AAT TAG, what would the complimentary stand read?
how do plants grow helppp
Answer:
During photosynthesis, plants take the water from the soil, and the carbon dioxide from the air and they make sugars out of it. ... When plants have the right balance of water, air, sunlight, and nutrients, their cells grow and divide, and the whole plant gets bigger and bigger. And that's how plants grow.
Explanation:
hope this helps have a good day :) ❤
Answer:
During photosynthesis, plants take the water from the soil, and the carbon dioxide from the air, and they make sugars out of it. ... When plants have the right balance of water, air, sunlight and nutrients, their cells grow and divide, and the whole plant gets bigger and bigger. And that's how plants grow.
Explanation:
brainlist bsf?
Which mixture of solids can be separated by using both magnetic attraction and color? Iron beads and candies Pepper and salt Sand and sugar Strawberry and melon ( science )
Answer:
Iron beads and candies Pepper
Explanation:
Iron beads and candies Pepper
Mixtures containing substances that are attracted by magnets can be separated using a magnet. We can separate iron from a mixture of sand and iron, as only the iron is attracted to the magnet.
The activity for Enzyme A and Enzyme B are displayed on the graph below. Enzyme A is found in thestomach and Enzyme B is found in the intestinal tract of some animals.
What is the probable pH of the stomach?
F. 1
G. 2
H. 3
J. 4
Answer:
3
Explanation:
the probable pH of the stomach is around 3
Answer:
H. 3
Explanation:
The probable pH of the stomach is 3.
why do different foods store different amounts of energy
Answer:
because they have different seed formation
Explanation:
С
Read the article and use the information to answer
the following questions.
Enzymes
What two components are often found as part of
an enzyme?
DONE V
not a
Answer:
Hey
Explanation:
UR question is uncompleted can u resend it
What is the first component of the naturally occurring CRISPR system?
Answer:
Crispr cas9 Basics
Explanation:
How does the article "Caring for Vets Should Be National Duty," develop the central ideas that nonprofit organizations are helping veterans and that the government should take more responsibility for caring for veterans? By listing examples of nonprofit organizations and explaining how these organizations work with the government by explaining how the nonprofit organizations raise funds for veterans and describing how government programs are funded by explaining that one nonprofit has been helping veterans for over a decade and emphasizing that the government should be doing more by describing how services provided to veterans by nonprofit organizations differ from those provided by the government and stating the government services are inferior
Answer:
here you go this is just for confirmation
Explanation:
By explaining that one nonprofit has been helping veterans for over a decade and emphasizing that government should be doing more.
What are non-profit organizations?A non-profit organization is a group that was established with the intention of making a profit, and in which no part of the organization's revenue is given to its directors, officials, or members.
Donations, grants, and membership fees are how non-profit organizations make money. Additionally, they might make money by selling branded goods. Rent or mortgage payments are examples of costs incurred by non-profit organizations.
Examples of non-profit organizations are foundations, fraternal societies, civil leagues, social clubs, recreational clubs, charitable organizations, local employee associations, etc.
Learn more about non-profit organizations, here:
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In the picture below, letter E represents:
A.substrate
B.enzyme
C.products
D.active site
Answer:
C.products is the answer.
Answer:
C. products
Explanation:
In the picture above, the letter E represents products.
what is photosynthesis
Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy. Here, we describe the general principles of photosynthesis and highlight how scientists are studying this natural process to help develop clean fuels and sources of renewable energy.
Types of photosynthesis:There are two types of photosynthetic processes: oxygenic photosynthesis and anoxygenic photosynthesis. The general principles of anoxygenic and oxygenic photosynthesis are very similar, but oxygenic photosynthesis is the most common and is seen in plants, algae and cyanobacteria.
During oxygenic photosynthesis, light energy transfers electrons from water (H2O) to carbon dioxide (CO2), to produce carbohydrates. In this transfer, the CO2 is "reduced," or receives electrons, and the water becomes "oxidized," or loses electrons. Ultimately, oxygen is produced along with carbohydrates.
Explanation:
photosynthesis the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
A section of a topographic map is shown below.
What is the difference in elevation in meters between Point X and Point Y on the map?
Answer:
360 m
Explanation:
Answer:
fish
Explanation:
moment
whitch of the following nutrients is primarily used for building and repairing of demaged cells and tissues
Answer: protein ..i hope this helped!
Explanation: protein is a nutrient used to make and repair our body cells like blood and muscle cells.
Answer:
Explanation:
he is correct