Answer:
A
Explanation:
What are Purkinje fibers?
special valves that relay electrical impulses to
the ventricles, which cause contraction
special fibers that relay electrical impulses to
the atriums, which cause emptying
special valves that relay blood to the
ventricles, which cause contraction
special fibers that relay electrical impulses to
the ventricles, which cause contraction
DO NE
Answer: It's D aka Special fibers that relay electrical impulses to the ventricles, which cause contraction.
Explanation:
RNA differs from DNA in that RNA
A.all of these
B.contains the nitrogenous base uracil
C.contains a different sugar molecule
E.is single-stranded
Answer:
A..they are all characteristics of RNA
PLEASE HELP ME PLEASEE!
The normal real behavior of a person or an animal can be
understood by naturalistic observation.
Select one:
True
False
The normal real behavior of a person or an animal can be
understood by naturalistic observation.
The phase of mitosis that is characterized by the arrangement of all chromatids along the equator of the cell is called
What is the main reason to put a telescope in space?
A.
It is much closer to the stars.
B.
It can receive star light that cannot reach Earth.
C.
Light reaching it is not affected by the movement of air.
D.
It can detect objects behind the moon.
Answer: D
Explanation:
The main reason we put telescopes into space is to get around the Earth's atmosphere so that we can get a clearer view of the planets, stars, and galaxies that we are studying. Our atmosphere acts like a protective blanket letting only some light through while blocking others.
Which sex would you expect to be the choosiest?
Answer:
Feamles but it depends what they're choosing from
Explanation:
Plant growth is the result of cells dividing during _____.
plss help
Answer:
Plant growth is the result of cells dividing during mitosis.
Explanation:
Mitosis is the process in which cells divide for cell growth or repair. All the cells, as a result of mitosis will have the same number of chromosomes as of the cell at the start.
Answer:
mitosis
Explanation:
Hope this helps
A scientist runs an SDS-PAGE experiment two separate times on a protein with a molecular weight of 200 kD. For the first experiment he treats the protein with SDS only and for the second experiment he treats the protein with both SDS and a reducing agent. If the first gel yields one band showing a molecular weight of 200 kD and the second run yields one band showing a molecular weight of 25 kD, the researcher should conclude that
Answer:
This protein consists of 8 subunits of equal size linked by disulfide bonds
Explanation:
The sodium dodecyl sulfate-polyacrylamide gel (SDS-PAGE) is a technique widely used in molecular biology laboratories to separate proteins with molecular weights between 5 and 250 kDa. SDS is an anionic detergent used to denature proteins before electrophoresis. SDS can denature proteins by altering non-covalent bonds such as hydrogen, hydrophobic and ionic interactions, but they cannot cleave disulfide bonds. In this case, reducing agents (e.g., β-mercaptoethanol or dithiothreitol) have been used to cleave disulfide bonds.
Cell X
Cell w
Cell Y
Cell Z
Х
х
х
Cell Membrane
x x
х
х
Cell Wall
Chloroplasts
Х
х
DNA
х
х
х
Nucleus
Х
Х
х
Which cell that was viewed is most likely a prokaryote?
nucleus,cell membrane
WILL GIVE BRAINLIEST!!!!!!
the last one I guess
Explanation:
i checked internet
how does the process of translation convert information from a dna code to an rna code?
a. from a DNA code to an RNA code
b. from an amino acids code to a nucleic acid code
c. from an RNA code to a DNA code
d. from a nucleic acid code to an amino acid code
Answer:B
Explanation:
The nitrogen bases in DNA code for the sequence of amino acids that make up a protein
Answer:
its B
Explanation:
The phase of mitosis that is characterized by the disappearance of the nuclear membrane is
Answer:
Prometaphase (late prophase)
Explanation:
Mitosis is the kind of cell division in which two genetically identical copies of a cell is formed from a cell. Mitosis comprises of stages which include prophase, metaphase, anaphase and telophase. Each phase is characterized by specific occurrences that all work together to achieve the main goal of forming two daughter cells.
According to this question, PROPHASE stage is the stage characterized by the condensation of chromatids into chromosomes, the disappearance of nucleolus and BREAKDOWN of NUCLEAR MEMBRANE.
A _____ is exhibited only when two are present together.
recessive allele
hybrid
purebred
dominant allele
Answer:
I believe it's a dominant allele
Explanation:
Recessive allele means one is present... A hybrid is the result of two different breeds breeding. A purebred is an organism that always passes down the same genetic makeup.
name two characteristics that all these animal share ( frog, buck, doves, lizard, dragonflies )
Answer:
They all have a beating heart, and a brain
Explanation:
Beating the heart and a brain is the two characteristics that all these animal shares frog, buck, doves, lizard, and dragonflies.
What are the different characteristics of animals?Frogs are cold-blooded animals and are classified into the class of amphibians, they are vertebrate animals with backbones.
The lizard was included in the class reptilia, they are creeping and burrowing terrestrial animals situated on the land, and also have scales on their body. Similar to the frog, they are also cold-blooded animals having a backbone.
The major classification of the animals is done by the presence of a backbone, which differentiates them in vertebrates and invertebrates.
Therefore, in the given question all the animals share common feature of having a heart and brain.
Learn more about animals, here:
https://brainly.com/question/7496524
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The diagram below shows the crossing of a tall plant in a short plant tall is dominant which of the genotypes of the parents plants
which is false?
- digestion begins in the mouth
- The small intestine digest carbohydrates
- The large intestine absorbs amino acids
- the stomach involves mechanical digestion
Answer:
false...................
Answer:
The large intestine absorbs amino acids
Which of the following is not an example of waking conscious
mind?
Select one:
a. Solving a math problem
b. Driving a Lamborghini
c. Writing an exam
d. Taking a power
nap
b. driving a Lamborghini
Answer:
option D is correct
Taking a power nap
hope it helps
Which characteristic of life best describes the process of homeostasis?
responding to the environment
reproducing
growing and developing
using energy
Answer
A. responding to the environment
Answer:
and using energy
Explanation:
the guy on ed told me
What factor causes global wind patterns
Answer:
the Coriolis effect
Explanation:
the earths rotation causes wind also known as the coriolis effect
Answer:
unequal heating of Earth's surface by the Sun
Explanation:
PLZ HELP ASAP
MARKING
The study of which trees monkeys feed in is part of the life sciences.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
Answer:
T
Explanation:
;}
3. Microphages are a type of white blood cells and part of the immune system's response to defend the body against viruses. What do microphages do?
-2 In a pasture ecosystem a large portion of the biomass is represented
pasture vegetation compared to animals that feed on these grasses.
illustrated by such a pasture ecosystem is called alan...
A food chain.
B food web.
с ecological pyramid.
D energy flow.
a
Explanation:
im not really sure about the answer i chosed but maybe yes
punnett Square st. Patrick's Day worksheet... did anyone have the answers..ughh... so confusing!!
Introspection is one of the many sleeping disorders experienced
by people with sleep apnea.
Select one:
True
False
Answer:
The statement is false.
Explanation:
Sleep apnea is a respiratory disease characterized by the fact that people who suffer from it habitually snore, have repeated stops of breathing (apneas) and drowsiness during the day. As a consequence, patients who suffer from it cannot rest well during the hours of sleep.The obstruction of breathing causes a decrease in oxygen levels in the body, the persistence of this lack of oxygen could cause pulmonary hypertension and a future right-sided heart failure or myocarditis. Introspection, on the other hand, is the immediate reflective capacity of the human mind to know its own states; it is not associated with sleep apnea.
I would appreciate help please thank you
Answer:
i am fairly sure the last option isn't true.. i hope i'm correct
ROCK
Created from the
- of
in ______ over time.
Help me pls
Answer:
Sedimentary Rock:
Created from the deposition of sediment
in layers over time.
Explanation:
With the pressure that is created from the layers of rock, this causes the creation of Sedimentary rock.
Hope this helps :)
brainpop newton's laws of motion worksheet answer key catagorize it answer
Answer:where the questions. cos
Explanation:
Which one of the following does not have its outer orbit full?
a. argon
b. neon
c. krypton
d. lithium
Answer:
Lithium
Explanation:
It is group I, not group 0.