Answer:
DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.
Explanation: :3 hope this helps
Plants have specialized structures that perform their necessary life functions. The gases that are crucial to proper
function within a plant are oxygen and carbon dioxide. What structure would control the exchange of these gases in
a plant?
a. mesophyll
b.trichomes
c.root hairs
d.stomata
Answer:
Stomata
Explanation:
Normally stomata open when the light strikes the leaf in the morning and close during the night.
d. During photosynthesis, CO2 enters the plant leave through opened stomata and in return it releases glucose,oxygen and some little molecules of water
A cell without a nucleus is known as
Help thank you
Answer: prokaryotic cells
Explanation:
Answer: Prokaryotes are organisms whose cells lack a nucleus and other organelles.
Explanation:
which member of the solar system has a diameter of 3.48 x 103 kilometers
Answer:
j
Explanation:
What does it represent?
Answer:
3
Explanation:
The arrows show the transfer of energy through prey and predator. When the deer eats the leaves, energy from the plant is transferred to the deer.
A form of simple cittusion is Osmosis. In which direction will water flow in the process of Osmosis?
A. Water will flow from low concentration to higher concentration
B. Water will flow with the solutes, against the concentration gradient
C. Water will flow towards the solutes (.e. toward the higher salt concentration)
D. Water will flow away from the solutes, with the concentration gradient
Answer: D
Explanation:
osmosis, water always moves from an area of higher water concentration to one of lower concentration.
What organelle is labeled ?
Selena learns that, as specialized cells mature, certain organelles increase in
quantity while other organelles may disappear. She also learns that muscle cells
require large quantities of energy in the form of ATP. Based on this, she can predict
that muscle cells would contain an unusually high number of
A Lysosomes
B Ribosomes
C Rough endoplasmic reticulum
D Mitochondria
Explanation:
rewatch the video your teacher provided on edunity
Answer:
mitochondria
Explanation:
muscles need energy for contraction and lots of mitochondria is what helps them do this
Which of the following is not a reason that nonnative species are reared outside their native ecosystems?
a. They are commercially important.
b. They are used to replace native species.
C. They are used for restocking programs.
d. None of the above
Answer:
D
Explanation:
All of the given reasons are reasons that nonnative species are reared outside their native ecosystems. The correct option is D.
What are nonnative species?Non-native species are animals, plants, and other organisms that do not develop natively in a region but are instead introduced through intentional or unintentional human activity.
Non-native species, unlike invasive species, do not necessarily threaten or threaten the existence of other species within the ecosystem.
Native plants and animals may go extinct as a result of invasive species, which can also decrease biodiversity, compete with native species for scarce resources, and disrupt habitats.
Ecosystems along the coast and in the Great Lakes may be severely disrupted, with significant negative economic effects.
They are employed in restocking efforts, to replace native species, and for commercial purposes.
Thus, the correct option is D.
For more details regarding non-native species, visit:
https://brainly.com/question/10401885
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When an atom loses an electron, it becomes a?
Given that almost all organisms obtain energy from food by the process of cellular respiration, which is the most likely explanation for what prevents Earth from running out of oxygen?
Answer:
Oxygen cycles keeps the flow of oxygen at a constant rate.
Explanation:
The oxygen constitutes about 20% of the gaseous components in the atmosphere and it's being renewed continuously by the various microorganism and primary producers as green plants that use photosynthesis and converts the sunlight and carbon dioxide to water and releases oxygen. Oxygen cycle makes life possible as most of the elements are combined with oxygen in some way or another and are found on the lithosphere, hydrosphere, and atmosphere even biosphere hence its is present insufficient amounts.
Answer:
A.) The net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle.
Explanation: Hope this helps!!
A relationship between living things that depend on the same
resources at the same place and at the same time is called
Answer:
competition
Explanation:
i searched it up
Answer:
Competition
Explanation:
Competition is a relationship between living things that depend on the same resources. The resources may be food, water, or anything else they both need. Competition occurs whenever the two species try to get the same resources in the same place and at the same time.
Which of the following is not a characteristic of enzymes?
F
they are proteins
G
they act as a catalyst
H
they react with a specific substrate
they are unaffected by changes in temperature
J
they are unaffected by changes in temperature
Answer:
they are unaffected by changes in temperature. t
Explanation:
that's the answer J. u kinda wrote it in two places.
What is the approximate diameter of the Zika virus?
How will help preserve kitchen
tools to avoid rusting?
Why is it important for gametes to be haploid cells?
The reason why it is important for gametes to be haploid cells is because: when the sperm and the egg fuse together the living sex cells will have 46 chromosomes.
Gametes are also referred to as sex cells and they can be defined as the reproductive cells in a living organism.
Generally, the male reproductive cell is known as a sperm while the female reproductive cell is known as an egg.
Since gametes are reproductive cells or sex cells, they are typically made up of haploid set of chromosomes.
Basically, it is very important for gametes to be haploid cells so that when the sperm and the egg fuse together, the living sex cells will have a total of 46 chromosomes.
Read more: https://brainly.com/question/24261254
Why does PE = mgh equal PE = Fw h ?
Answer:
Why is potential energy MGH?
Potential energy is energy an object has because of its position relative to some other object. ... For the gravitational force the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.
Explanation:
Yes Yes Yes Yes Yes Yes
PLEASE ANSWER THESE QUESTIONS COMPLETELY!!! WILL MARK BRAINLIEST!!!
DOC 1 Questions:
A. Is the suspected father actually the father of this child?
B. How do you know?
Answer:
He is not the father
Explanation:
As it says, the DNA matches up half of the time. The mother and child have 2/4 markers lined up, while the suspected father has no similar geonomes.
Lady Bird Johnson is responsible for which activity when her husband
was Governor of Texas
Answer:
she became the first presidents wife to advocate actively for legislation
please help i will mark brainliest
Answer:
The vaccine that protect humans from the h1n1 virus is called Panvax vaccine or swine Explanation:They are inactivated H1N1 virus vaccines used for immunization of individuals 6 months of age and older against influenza disease caused by H1N1 2009 virus.
A difference between food chains and food webs is that food webs are...
O bigger
Smaller
Answer: Food webs are bigger, food chain is smaller.
Explanation:
Food webs are multiple food chains into one web.
Which organelle provides support for the cell and may also help the cell move?
Cell Membrane
Cytoplasm
Cytoskeleton
Ribosome
What process best explains how a nerve cell and a muscle cell can both
develop from the same fertilized egg?
O A. differentiation
O B. natural selection
O C. selective breeding
O D. genetic engineering
Need ASAP!
Answer:
Im pretty sure its A.
Explanation:
=just took the teskst
Answer: The correct answer is A. differentiation
Explanation: Confirmed correct.
Sitting down at her favorite restaurant, Aliyah is looking at the menu trying to figure out what she would like to have. She notes an asterisk next to one of the dishes and finding the note at the bottom of the menu, it says, “Although we will cook to order, be aware that consuming this dish raw or undercooked may increase your risk of contracting salmonella.” Which menu item is MOST likely being referenced here?
A. Eggs Benedict
B. Blackened Salmon
C. Chocolate Cake
D. Spinach Lasagna
Answer:
my guess is A. Eggs Benedict
Explanation:
eating eggs raw may lead to illness.
What type of bond is being formed in this polymerization reaction to link two amino acids together?
How far does a runner travel if they maintain a speed of 8.5 m/s for 240 s?
How does the DNA found in your eye cells compared to the DNA found in your skin cells?
Answer:
Only 50% of the DNA in an eye cell can be found in a skin cell.
how can limiting factors (density dependent and density independent) affect a population size?
guys please help
Question 11 Part A)
Make sure to sure me your work.
Answer:
95%
Explanation:
190 is 95% of 200.
The comparison of input versus output is also 95%
Plz hurry if u can. What is the momentum of a 100-kg football
player running north at a speed of 4 m/s?
What is the purpose of Mitosis? *
A. To produce an egg and a sperm cell.
B. To produce a new organism (like bacteria).
C. To produce a new cell (NOT a new organism).
D. To differentiate.
Answer:
C.
Explanation: Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.
Hope this helps! Have a nice day!
Answer:
C. to produce a new cell
Explanation:
Mitosis consists in replicating the genetic material of a mother cell in order to make two identical daughter cells; this is a diploid process. In order to make an egg or sperm cell and eventually a new organism, the correct process would be meiosis, since it combines the DNA between two cells and it is an haploid process.