Answer:
stimulus
Explanation:
4. "Hybrid" means "crossing" or "combination
O
True
O
False
Answer:
False
Explanation:
sorry if it's wrong
2. What evidence was found to support the different parts of cell theory?
Answer:
The invention of the electron microscope allowed them to see organelles and other structures smaller than cells. There is variation in cells, but all cells have a plasma membrane, cytoplasm, ribosomes, and DNA. These similarities show that all life on Earth has a common ancestor in the distant past
4. Which of the following is true regarding genetic mutations?
a. All mutations are harmful.
b. All mutations are beneficial to the organism.
c. Mutations can be harmful, beneficial, or have no effect on the organism.
Answer:
C
Explanation:
mutations can be harmful, helpful, or neutral depending on the environment
Animal waste decay by the action of bacteria which create _____________and __________ products rich in nitrogen, and useful for plants to use again.
Answer:
Ammonia and nitrate
Explanation:
a car acceleration from a 10 m/s to 60 m/s in 12 seconds. what is the acceleration
Answer:
4.167 m/s^2
Explanation:
vi = initial velocity = 10 m/s
vf = final velocity = 60 m/s
t = time = 12 s
a = acceleration, unknown
Use the following equation to find a:
(vf - vi)/t = a
(60 - 10)/12 = 4.167 m/s^2
4.167 m/s^2 = a
Hope this helps!! :)
Question 14 1 points) What type of mutation has occurred in the following example? Original DNA Sequence ATC G G C T A A G G C A Mutated DNA Sequence A TCA GG CT A G G C A) deletion mutation B) germ-cell mutation C) insertion mutation.
Answer:
B) germ-cell mutation is the answer
What is the ultimate purpose of the nuclear reaction in a nuclear power plant
Answer:
I heats water to produce steam thar spins a turbine.
In peas, the green pod color (G) is dominant to the gene for yellow pod color (g). If two heterozygous plants (Gg) are crossed. What percent of the offspring will be Green?
0%
25%
50%
75%
Answer:
75
Explanation:
took the test
How do the size of the two atria compare to the ventricles
Answer:
Atria are the smaller upper chambers while ventricles are the larger lower chambers off the heart.
Explanation:
the main difference between them is that atria receives blood into the heart whereas ventricles pump blood outside the heart
According to the endosymbiotic theory of the origin of eukaryotic cells, how did mitochondria originate?
a) when a protoeukaryote engaged in a symbiotic relationship with a protocell
b) from infoldings of the plasma membrane, coupled with mutations of genes for proteins in energy-transfer reactions
c) from the nuclear envelope folding outward and forming mitochondrial membranes
d) by secondary endosymbiosis
e) from engulfed, originally free-living proteobacteria
Answer:
e) from engulfed, originally free-living proteobacteria
Explanation:
The bacterium was captured by a eukaryotic cell and then the cell evolved into the mitochondria we know today!
According to the endosymbiotic theory of the origin of eukaryotic cells, mitochondria formed from engulfed, originally free-living proteobacteria. The correct option is e.
What is proteobacteria?Proteobacteria are a major phylum (group) of bacteria. Pathogens such as Escherichia coli, Salmonella, Vibrio cholerae, Helicobacter pylori, and many others are among them.
Others are free-living, and they include many of the bacteria that fix nitrogen.
Proteobacteria, which includes mesophilic and neutrophilic bacteria, is the second largest phylum of hydrogenogenic CO oxidizers. Members of this phylum can be found in a variety of classes.
According to the endosymbiotic theory, mitochondria and chloroplasts were once free-living bacteria that were phagocytized but not digested by another cell.
According to the endosymbiotic theory of eukaryotic cell origin, mitochondria evolved from a rickettsia that was phagocytized but not digested by the larger cell.
Thus, the correct option is e.
For more details regarding proteobacteria, visit:
https://brainly.com/question/13383583
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HELP:((!
I need help on answering these 2 questions based of the following chart:
1. Which cancer type is most common? Least common?
2. Which cancer type seems to be least treatable? Most treatable?
Answer:
1. Common: Skin (Basal) Least common: skin(melanoma)
2. Least: Lung cancer Most: skin (basal)
Explanation:
The light color are cases.
The darker color is deaths.
All I did was observe the table.
Answer:
2
Explanation:
Distinguish between the following pairs.
a.active transport and passive transport
b. exocytosis and endocytosis
c diffusion and osmosis
d. hypertonic and hypotonic
Answer:
Explanation:
a. active transport is against the concentration gradient and uses atp. facilitated diffusion is with the concentration gradient and doesn't use atp
b. endocytosis is substances being engulfed in the cell membrane, exocytosis is substances being released from the cell membrane
c. diffusion is the movement of particles through the membrane and osmosis is specifically the movement of water
d. hypertonic means more solute, hypotonic means less solute.
Adult hyrdras are _________, meaning they do not move.
Please as help! Explain how important has been for animals to have internal fertilization? Provide two
arguments supporting your answer
Answer:
Why is internal Fertilisation important to animals?
Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young.
Explanation:
what's the most common way to vote using parliamentary procedure?
Answer: Ye ye
Explanation:
itssss bbbbbbbb
All animals have the same tolerance range.
True
False
Answer:
False
Explanation: Diffrent animals have different tolerance ranges
The Florida Everglades is a large warm wetland with many plants and animals. Which of Earth’s systems interacts with the biosphere in the Florida Everglades?
A.
hydrosphere, geosphere, and atmosphere
B.
hydrosphere, atmosphere and cryosphere
C.
hydrosphere only
D.
hydrosphere and geosphere only
Answer:
a
Explanation:
What are the coefficients of the following chemical equation?
C + O2 -> CO
Answer:
C = coefficient of 1
O2 = coefficient of 1
CO = coefficient of 1
Can anyone can tell me this is right? or wrong?
Thank you.
Answer:
yes this is correct, good luck!
Explanation:
Carbohydrates act as a main source of energy for the cell.
Lipids provide insulation.
Proteins help speed up cellular reaction, and they also regulate the cell.
Nucleic acid carries the genetic infomation.
hope this helps :)
Answer:
Correct, well done!
Explanation:
How do I revise efficiently?
I have a biology test and I want to get a good grade so I am currently trying to learn how to revise. I have 0 experience in revising since I usually have good grades in tests and all but I don't feel confident with biology...
Answer:
Try to stay focused and make sure any distractions you have around are put away. This will help you focus!
Explanation:
Try chewing on a piece of gum while revising and chew the same flavor of gum when you take the exam this will help you remember everything you studied.
Also, don't forget to say "Rabbi Zidni ilma"
What is the correct answer???
Answer:
U U G
hope you have a good day/night make sure to do good in school and try your best :)
check out the image
Choose all the answers that apply. Precipitation:
a.creates new water
b. occurs after condensation
c.is roughly equal to the amount of evaporation
d. occurs evenly all over the earth
e. returns freshwater to the earth
Answer: e and a
Explanation:
Answer:
occurs after condensation
is roughly equal to the amount of evaporation
Explanation:
Definition: This is is a medical procedure used in prenatal diagnosis of chromosomal abnormalities in
which a small amount of amniotic fluid is extracted amniotic sac surrounding a developing fetus and the
fetal DNA is examined.
Answer:
Amniocentesis
Explanation:
It involves inserting a long needle to extract fetal cells from the fetus's surrounding fluid for these diagnostic purposes. It is a risky procedure that has since been widely replaced by cell-free DNA testing.
Which region of the Ig molecule interacts with the antigen? What makes the region suited for this purpose?
Answer and Explanation:
Immunoglobulins (Ig) are proteins that are composed of 4 polypeptidic chains: 2 heavy chains (H) and two light chains (L). They assemble in a structure with a 'Y' form. This structure has two regions: the Fab region and the Fc region.
The region of Ig which interacts with the antigen is the Fab region. That is possible because the Fab region presents variability in the amino acid sequence which determines the specific complementary shape with the antigen structure (like a lock and the key).
please help me with this homework problem!!
Answer:
the last one. Tt and tt
Explanation:
the answer is Tt and tt because
look at the following photographs. what two ways are microorganisms used in the making of cheese?
Please attach photograph
Termination of the abdomen in which the anus is located *
telson
Cheliped
carapace
mandibles
Answer:
Telson
Explanation:
its the last segment of the abdomen.
What do acids react with in limestone to form giant cave systems?
metals
hydroxides
carbonates
lipids
The site which responds to the hormone?
Answer:
Most hormones circulate in blood, coming into contact with essentially all cells. However, a given hormone usually affects only a limited number of cells, which are called target cells. A target cell responds to a hormone because it bears receptors for the hormone.
Answer:
According to toppr
Receptors are specific proteins located on target tissues to which specific hormones bind to produce their effect.
Binding of a hormone to its receptor leads to the formation of a hormone-receptor complex. Formation of Hormone-Receptor complex leads to certain biochemical changes in the target tissue.
Hence Receptor site responds to a hormone.
So, the correct answer is 'Receptor'.
Not my own words, I have cited so I am not plagerizing
Explanation: :)
