Answer:
D
Explanation:
Yeast cells, plant cells, and mammal cells all share many similarities in cell signaling. This provides evidence that signal transduction pathways appeared in cells before the evolution of multicellular organisms. Thus, the correct option for this question is D.
What is cell signaling?Cell signaling may be defined as a process through which a cell of an organism may respond to substances outside the cell through signaling molecules found on the surface of and inside the cell.
This biological process of cell signaling is ultimately required in order to accomplish all sorts of metabolic activities that are essential for the survival of living organisms, no matter whether they are prokaryotic or eukaryotic, unicellular or multicellular.
Therefore, the correct option for this question is D.
To learn more about Cell signaling, refer to the link:
https://brainly.com/question/14470454
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What conclusion can you draw if a sample a tourmaline scratches a sample of kyanite, but kyanite cannot scratch tourmaline?
What do organs combine to form?
O organisms
O cells
O organ systems
for
O tissues
Answer:
Organ systems.
Explanation:
Cells form tissues, tissues form organs, organs form organ systems, and organ systems form organisms.
Hope this helped!
What does photosynthesis and cellular respiration have in common?
In leopards, being shy (S) is dominant to being sassy (s), and being timely (T) is dominant to being tardy (t).
A female leopard that is
heterozygous for both the S and I trait mates with a male leopard that is also
heterozygous for both traits. Both the S and I traits assort independently from one another.
What is the probability that they will have an offspring that is sassy and timely?
The probability that the leopards will have an offspring that is sassy and timely is 3/16
This question involves two different genes. The allele for being shy (S) is dominant to the allele for being sassy (s) in the first gene while the allele for being timely (T) is dominant to being tardy (t).According to this question, A female leopard that is heterozygous for both the S and T traits i.e. SsTt mates with a male leopard that is also heterozygous for both traits i.e. SsTtThe two heterozygous leopards (SsTt) will produce the following gametes: ST, St, sT, and stUsing these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced: S_T_ = shy, timely (9)S_tt = shy, tardy (3)ssT_ = sassy, timely (3)sstt = sassy, tardy (1)According to this question, the probability that the two leopards will have an offspring that is sassy and timely is 3/16.Learn more at: https://brainly.com/question/7320771
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Convoluta worms hatch in early spring. They crawl about in the mud feeding on algae, which find their way into the skin of the worms. There they prosper as they worms feed on the sun-warmed surface mud.
The worms become greener and greener as they mature. Gradually their mouths seal shut, leaving only an internal garden of algae to provide them with food. As winter approaches, their food supply is exhausted, and the worms grow pale again. They lay their eggs in the mud just before they starve to death.
How do you think both worms and algae benefit from this relationship? WHY??
Answer:
can u give brainliest?? :))
Explanation:
Answer:
xfhgfff
Explanation:
1. John observed bacteria at 100X under the oil immersion and then decided to go back to 40X
objective by raising the oil objective a little to avoid the damage to objective lens. Critique his
technique. (1 pt.)
Answer:
See the answer below
Explanation:
In the first instance, the 100X objective does not have any business touching the slide on the stage so that there would not be any reason to raise it a little in order to go back to a lower objective. At higher objectives, only the fine adjustment should be used to bring the object into focus so as to avoid the objective lens from touching the slide which can damage the objective and or break the slide on the stage.
For the X100 objective to be raised in order to avoid a damage to it, it means John allowed the objective to come too close to the slide in the first place. This should not have been so.
How do adaptations help organisms survive in a predator/prey relationship?
Answer:
Prey animals develop adaptions to help them not get eaten. They develop defense mechanisms. The predators develop strategies to make themselves more affective in catching prey.
Hope this helped! Please mark brainliest!
If trees are planted in a cleared area of forest carbon levels will increase ?
Answer:
No, carbon levels will decrease.
Explanation:
Trees take inn carbon and 'breathe' out oxygen
So the carbon levels should decrease
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Answer:
abiotic
Explanation:
Abiotic factors in a Biome would include things that are not alive or have never been alive.
Use the drop-down menus to identify the type of mass movement in each image.
A: First image
B: Second image
C: Third image
(Answers: creep, mudflow, and slump)
Answer:
First Image - Creep
Second Image - Mudflow
Third Image - Slump
Explanation:
In geology, creep in landform is known to be the movement of loose, weathered material which occurs on every slope slowly on a downslope. The downslope is caused by persistent tilting of gravestones, trees, etc.
Mudflow involves the very rapid flow of debris which are liquified as a result of the significant amount of water which then leads to mass wasting. This occurs when water mixes with soil and rock and makes the mud mass to flow rapidly.
While slump involves the falling out or removal of earth ir rock debris from the slope of unconsolidated material which moves downward intermittently.
Creep, Mudflow and Slump all lead to landforms.
Which of the following is an abiotic limiting factor for a plant population in an ecosystem?
Invasive weed species
Animals pollinating flowers
Availability of soil minerals
Disease-causing fungal spores
Answer:
Availability of soil minerals
Explanation:
Abiotic factors are the non-living factors in the ecosystem. These materials are the chemical and physical components of the ecosystem. They are not biological in nature.
Soil minerals are abiotic since they are produced from rocks. Invasive weed species, animals pollinating and disease causing fungal spores are all biotic. They stem from biological processes.Answer:
Availability of soil minerals
Explanation:
Hope it helps!
What is a prophage?
a. the result when viral DNA has inserted itself into the bacterial DNA
b. the virus that causes diseases in protists
c. a special virus that attacks plants
d. virus that causes AIDS in humans
Answer : A prophange is the result when viral DNA has inserted itself into the bacterial DNA.
Answer:
a. the result when viral DNA has inserted itself into the bacterial DNA
Explanation:
e or False: The use of fossil fuels has contributed to more carbon released in the
Bosphere than in the past.
Answer:
True
Explanation:
Identify all statements that accurately describe the structure of the pyruvate dehydrogenase (PDH) complex.A. A regulatory kinase and phosphatase are part of the mammalian PDH complex. B. Several copies each fo E1 and E3 surround E2. C. E2 contains three domains. D. The complex contains multiplex is made up of several copies of E1.
Answer: Options A, B ,C and E are correct
Explanation:
The structure of pyruvate dehydrogenase complex comprises if three enzymes E1, E2 and E3 which convert pyruvate to acetyl CoA. The three enzymes are have several copies.
Within the PDH complex, the E2 subunit forms the structural unit, contain three domains and are surrounded by E1 and E3. The E 2 accepts acetyl groups from E1 and transmit the group to coenzyme A. The decarboxylation of pyruvate and its conversion to acetyl-CoA by the PDH complex comes first before glucose carbon enter into the tricarboxylic acid (TCA) cycle. This process is important to the aerobic oxidation of glucose .
. Which of the following is used to avoid bias in a clinical trial
A) Data manipulation
B) Unfair prejudice
C) Personal interest
D) Double-blind testing
Answer:
D.
Explanation:
Whenever any clinical trail is conducted then the complete process is kept unbaised. Double blind testing can be defined as an experiment in which neither the researcher nor the person who is getting placebo and who is getting treatment knows. This is done in the clinical trials to keep the whole process unbaised.
PARTA
Which of the following best describes the process by which the bacteria are breaking down the glucose to produce
lactic acid?
A The bacteria are breaking down sugars in the absence of oxygen.
B The bacteria are creating a H+ gradient to synthesize more ATP.
The bacteria are using their mitochondria to break down glucose in the presence of oxygen.
The bacteria are producing CO2 in the Krebs cycle that is then converted into lactic acid.
Answer:
A. The bacteria are breaking down sugars in the absence of oxygen.
Explanation:
Bacteria are microscopic single-celled organims. These organisms may produce their own source of chemical energy, or consume and absorb chemical energy made by producers.
They break down chemical energy like glucose through lactic acid fermentation in their cytoplasm, without the presence of oxygen.
In Glycolysis:
2 molecules of ATP are used to break up glucose into 2 molecules of pyruvate, 4 ATP and 2 electron carrying NADH molecules. Since 2 ATP are used, a net 2ATP are produced by this process.
Then, pyruvate is converted to lactic acid, producing 2 NAD+, used as electron carriers.
The option that best describes the process by which bacteria break down glucose to produce lactic acid is when bacteria break down sugars in the absence of oxygen. The correct option would, thus, be A.
Bacteria are capable of breaking sugars to generate energy, a process known as respiration.
This respiration can either be in the presence (aerobic) or absence (anaerobic) of oxygen.
Aerobic respiration has 3 major steps:
sugar is converted to pyruvates with the generation of ATP - glycolysispyruvates enter the Kreb's cycle to generate ATP and other molecules such as FADH2 and NADHFADH2 and NADH produced in Kreb's cycled are used to move electrons and generate energy in the electron transport chain.Both the 2nd and 3rd steps in aerobic respiration require oxygen and the summary of the entire process is in the following equation:
[tex]C_6H_1_2O_6 + 6 O_2 ---------> 6 CO_2 + 6 H_2O + ATP[/tex]
In the absence of oxygen, only glycolysis occurs and the pyruvates generated are quickly converted to lactic acid to generate a small amount of ATP according to the following equation:
Pyruvic acid + NADH <---> lactic acid + NAD+
More on anaerobic respiration can be found here: https://brainly.com/question/12605249
what is the force of a rock falling of a cliff if it has a mass of 0.4 kg?
Answer:
impulse=force x time
force=mass x acceleration due to gravity
force=
impulse =3000 x 2.5= ( sorry i don't have a calculator right now so you must calculate this yourself)
I converted from kg to g because it is the standard.
Explanation:
Helppp I will marke u as brainlest .
Muscles worksheet STEP 1: Fill in the blank with the name of the muscle.
1. flexion of the hip —————
2. extension of the thigh ——————
3. abduction of the thigh adduction of the thigh —————
4. extension of the arm —————
5. flexion of the arm —————
4. abduction of arm at shoulder ——————
5. rotation of the head ——————
6. flexion of abdomen —————-
7. lateral flexion of the abdomen ——————
8. lateral rotation of the abdomen
9. Elevation of the ribs
10. Elevation of the mandible
Although experiencing severely traumatic events may lead to PTSD, it is also likely to lead to
arachnophobia.
phobias.
stimulus generalization.
posttraumatic growth.
Answer:
traumatic events can lead to PTSD
PTSD is post traumatic stress disorder.
PTSD leads to many mental health issues, mostly depression and anxiety.
I believe that the answer is Phobias.
Phobias are irrational fear of a thing or situation.
Phobias are also a type of anxiety disorder.
A person is effected by PTSD after a traumatic event.
so, they tend to develope Phobias of things that remind them of that event.
Explanation:
I hope this helps...
have a great day ahead.
textWhere are nonpolar amino acids of a protein more likely to be found? Check all that apply
Answer:
At the interior side.
Explanation:
Nonpolar amino acids of a protein more likely to be found at the interior side of the soluble proteins where they are far from the water because water is a polar molecule and only polar amino acids of protein can interact with the water so that's why the polar amino acids are present on the surface of soluble proteins and the nonpolar amino acids of a protein are present at the interior side of the soluble proteins due to its nonpolar nature.
For the chemical formula C6H12 how many
carbons and hydrogens are there?
Can someone help me out with the 2 read the following paragraph and fill in the gaps with words from the box ?
Answer:
1. molecules
2. blood
3. alimentary canal
4. pieces
5. enzymes
6.pancreas
7. small
8.absorbs
9.intestine
10.water
What type of organism is grass considered to be?Required to answer. Single choice.
producer
consumer
herbivore
predator
Answer:
producer
Explanation:
because plants create there own food from sunlight
crown plz
Answer: hey friend, the answer of your question is
B. consumer and herbivore
Explanation:
hope this was helpful....
Why is the presence of organic material in the soil important?
A)
It wards away plant eating organisms.
B)
It increases plant growth.
C)
It increases sunlight absorption.
D)
It increases water absorption.
Answer:
D) It increase water absorption.
Explanation:
When a soil is at field capacity, organic matter has a higher water holding capacity than a similar volume of mineral soil.
Answer: B) it increases plant growth
Explanation:
Edge
Can organisms plan and willingly change their
mutations in their genes? Why or why not.
simple answer 1 sentence please
Answer:
No
Explanation:
Organisms cannot willingly change their mutations as these things occur by chance and within the genetic code which the organisms have no direct power over.
Which figure was responsible for the initial use of hypnosis as a medical treatment? A. Milton Erickson B. Franz Mesmer C. James Braid D. Jean Martin Charcot Please select the best answer from the choices provided A B C D
Answer:B. Frank Mesmer
Explanation:
Answer:
B. Franz Mesmer
2. The experiment proceeded as normal, with the experimental group hearing about the
potential presence of a gun as the confederates left the study and the control group not
hearing about the gun. All participants returned on day two for the interview with the
police detective. After debriefing, none of the participants said they were aware that the
theft was staged. The researchers found that those in the experimental group did
incorporate the gun misinformation into their memories of the theft more than those in
the control condition. That is, the mean score that a gun was present was much higher for
the experimental group (M= 67%, SD = 12.4%) than the control group (M= 33%, SD =
11.16%).
a. Maturation
b. Regression to the mean
c. Selection
d. Mortality
e. Instrumentation
f. Testing
mibog. History and internet
nobno h. Interactions on
brod i Diffusion location online
hodi j. No Threat
to God
092 ods
dandruff
Explanation:
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dandruff
Explanation:
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Does Potassium have cations or anions?
semi-conservative replication
What is semi-conservative replication
Do crabs have ganglia?
Answer:
The nervous system of a crab differs from that of vertebrates (mammals, birds, fish, etc.) in that it has a dorsal ganglion (brain) and a ventral ganglion. ... The ventral ganglion is located beneath the internal organs, between the legs.
Explanation:
Brainliest please?