I can’t answer how lichens arrive in a barren landscape but I can answer the 2nd part
Lichens grow when exposed to water. When wet, lichens begin to photosynthesize.
Codons can be found in...
A.humans only B.rocks C.bacteria D.all
Answer:
A series of codons in part of a messenger RNA (mRNA) molecule. Each codon consists of three nucleotides, usually corresponding to a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C.
Explanation:
Which of the following statements BEST defines vestigial structures? :
-Structures that are different in different organisms
-Structures that are still present but currently serve little to no purpose
-Structures that are the same in different organisms
-Structures that are different between the infant and adult forms of an organism
Answer:
Structures that are still present but currently serve little to no purpose
Explanation:
Vestigial structures/organs are general defined as structures/organs that are present but poorly developed without any functional use in the present living organisms but thought to have been fully developed and functional in their ancestors.
Fully developed and functional organs gradually become less developed and non-functional across generations as the environment keeps changing and organisms found lesser use for the organs. An example includes the caudal vertebrae found in man which is kind of useless but thought to have been fully developed and functional in the ancestors of man - the monkeys.
Vestigial organs are often used as one of the morphological evidence of the evolution of living organisms.
Which of the following are the alleles for a heterozygous pea plant?
A. Gg- Green color
B. GG- Green color
C. gg- yellow color
Heterozygous means the individual has one copy of the recessive gene and one for the dominant gene. That means the genotype will contain one capital letter and one lowercase letter. In this case, which is complete dominance the dominant gene will manifest in the heterozygous form.
The correct answer is A. Gg-Green color
The energy used to pump hydrogen ions from the mitochondrial matrix across the inner membrane and into the intermembrane space is derived from:________
a. ATP hydrolysis
b. reactions in the electron transport chain
c. decreasing the pH in the mitochondrial matrix
d. splitting water to form oxygen and protons
Answer:
b. reactions in the electron transport chain
Explanation:
Oxidative phosphorylation, which is the process described in this question, is the third stage of cellular respiration which occurs in the MITOCHONDRION of eukaryotic cells. In this stage of oxidative phosphorylation, which encompasses electron transport chain (ETC) and chemiosmosis, ATP is synthesized.
The ATP is synthesized when protons (H+) move from the mitochondrial matrix into the intermembrane space, forming, a proton pump. The series of electron transfers (reactions) that occur in the complexes of the ETC provides the ENERGY to pump the protons/hydrogen ions out of the matrix, which creates the electrochemical gradient required for ATP synthesis with the help of ATP synthase.
3. What is it called when layers pile up and press
down on the material below?
a. Compaction
b. Cenentation
c. Layering
d. Stratification
8.
Gizmo Warm-up
On the SIMULATION pane of the Cell Division GizmoTM, check that the Cycle Length is set
to 12 hours. Click Play ( ), observe until the maximum number of cells is shown, and
then click Pause ( ).
1. Look at the cells. Do they all look the same?
I
antakinerir
Answer: no
Explanation: some of the cells look the same but some don’t and this is basically saying that they are not all the same. There is like 4 different types of cells.
ANSWER NOW TO GET BRAINLEST IF I WERE YOU I WOULD BE BE ANSWER THIS RN AND HAS TO BE CORRECT ANSWER
Answer:
i believe C
Explanation:
the layers propose a volcanic eruption along with the crystals such as how an agate forms.
help asap pls getting timed
Answer:
temp.
Explanation:
Answer:
tempurature
Explanation:
Which of these ideas would be the best course of action for decreasing land temperatures?
Answer:A
Explanation:
Choose the equation that relates work to force and distance.
a
work =
force
distance
b
work
distance
force
c с
work = force x distance
d
work = force + distance
Answer:
c
Explanation:
work=force×distance
Answer: c
Explanation:
In what era did the humans appear
Image result for In what era did the humans appear
Hominins first appear by around 6 million years ago, in the Miocene epoch, which ended about 5.3 million years ago. Our evolutionary path takes us through the Pliocene , the Pleistocene , and finally into the Holocene, starting about 12,000 years ago.
PLEASE HELP I WILL GIVE YOU BRAINLIEST PLS EXPLAIN!!!!
Answer:
Newton's second law: force and acceleration are proportional, mass and acceleration are… The acceleration of an object as produced by a n is directly proportional to the magnitude of the n in the same direction as the net force, and invers proportional to the mass of the object.
Explanation:
What prevents acetylcholine from accumulating in the neuromuscular junction and causing a sustained contraction in a normal individual
Answer:
Botulinum toxin
Explanation:
Botulinum toxin is known to hinder the release of acetylcholine into the synaptic cleft at the neuromuscular junction.
This leads to acetylcholine not attaching to its receptors and eventually leading to the inability to have muscle contractions.
Hence, in this case, the correct answer is Botulinum toxin prevents acetylcholine from accumulating in the neuromuscular junction in individuals.
answer get 75 pt if you did this just give pdf plzzzz its a project
Answer:
OMG ive done this!!!!!!...
the instructions for the egg and sperm one are down there mine was not very good maybe yours will be a bit better loll
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What are the charges both inside and outside of the neuron before you click the stimulate neuron button?
Answer:
The correct approach is "Negative and Positive".
Explanation:
Just outside of the neurons, the electrostatic interactions seem to be extremely favorable or positive (+) as well as the ion mostly with the greatest proportion was indeed sodium. Throughout intracellular space, a large amount of protein would be negatively charged, or even just potassium channels predominate. Under those same circumstances, the ion channels also seem to be inaccessible.For this specific purpose, this same lying down the neuron, before obtaining a stimulus, introduces positively charged on the external social but instead negative (-) inside though.
A man heterozygous for blood type A marries a woman heterozygous for blood type B. What could be the possible blood types of their offspring?
Answer:
Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)
Heterozygous B: BB (h0m0zygous)
AO x BB --> AB, BO
Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.
I hope this answer helps you find what your looking for! :)
Answer:
Heterozygous A: AO (remember, O type blood is a recessive allele. It's masked by A)
Heterozygous B: BB (h0m0zygous)
AO x BB --> AB, BO
Therefore, the genotypes of their offspring will be 1 AB to 1 BO, while the phenotypes will be 1 AB blood to 1 B blood.
Explanation:
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Which organelles are not found in plant cells? vacuoles mitochondria chloroplasts centrioles
Answer:
Centrioles
hope it help u
:) ✌❤
Answer:
D. centrioles
Explanation:
The sensor or detector tells the integrating center what needs to be done
True
False
Answer:
True
Explanation:
It is true because a sensor or detector is an organ that detects external stimuli from the environment or changes in both internal and external environment, it then send the information to the integrating center.
The integrating center receive stimulus or information from sensor and activate responses to the stimulus.
What is opposite of the absolute value of -4?
Answer:
Explanation:
4......
Which could be a pathway of food through an ecosystem?
Answer:
autotroph - heterotroph – heterotroph
Explanation:
Just makes the most sense :P
Please answer this is super easy 6th grade science! Thanks!
Answer:
The answer should be A. lithosphere.
Explanation:
Firstly, let's look at the options:
C. and D, both parts of the Earth at the core, have almost nothing to do with the Earth's crust or tectonic plates except maybe having a passive effect on them.
B. mantle is where the lava that moves the tectonic plates circulates due to convection, which is the reason they move at all. But, it is not where the tectonic plates themselves are.
Therefore, finally, we have A as the answer.
(As a sidenote, the "lithosphere" means the Earth's crust.)
Hope this helped!
If a runner was preparing for a long distance race should he eat carbohydrates proteins or lipids explain your answer completely using evidence from the video
Answer:carbohydrates
Explanation: They provide fast energy.
3. On a particular planet, it takes 850 J for a 50 kg remote probe to launch
itself up 2 m. What is the gravitational field strength on the planet?
Answer:
the gravitational field strength is 8.5 N/kg .
Explanation:
PE = mgh
where,
PE is Potential Energy
m is the mass
g (a) is the acceleration
h is the height
Substitute the value we get
→ 850 = 50×a × 2
→ 850 = 100×a
→ a = 850/100
→ a = 8.5m/s²
Acceleration is 8.5m/s².
Now, Calculating the Gravitational Field Strength
Are cells and DNA the same thing?
Answer:
no
Explanation:
you have DNA in your cells its all one thing together but not the same i believe
Which scientific discipline is correctly matched to a contribution to society?
The options are;
A) biology; theory of relativity
B) geology; theory of continental drift
C) ecology; discovering new elements
D) astronomy; developing quantum mechanics
Answer:
B) geology; theory of continental drift
Explanation:
Looking at the options;
-theory of relativity is a topic in physics originated by Einstein. Thus, it is matched to physics and not biology.
- theory of continental drifts are related to plate tectonics where it explains how continents shift position on Earth's surface. This is a branch of Geography and is thus correctly matched.
- discovering new elements is a topic under chemistry and not ecology. Thus, this is not matched correctly.
-developing quantum mechanics is a topic in physics that deals with the relationship between energy and matterwith respect to atomic and subatomic scale. Thus, it is not well matched.
Therefore correct answer is option B
help !! Solar-powered cars use energy from the Sun to work. A panel on the car absorbs light energy from the Sun, which then generates an electric current. This electric current, in turn, allows the car to move. Which shows the correct order of energy transformations that take place in a solar-powered car?
A)electrical, chemical, kinetic
B)electrical, kinetic, radiant
C)radiant, chemical, electrical
D)radiant, electrical, mechanical
Answer:
Concept: Fuel Cells
First it goes through radiant which is the intake of the solar power as waves, aka electromagnetic.Then it goes through an electrical process that converts the acquired power.Lastly a car uses mechanical power to move.Answer: radiant, electrical, mechanical
Explanation:
took the quiz :)
it is a jelly-like fluid structure inside the cell that provides an area of movement for all dissolved molecules that keep the cell working
What happens after the gated channels close?
Answer:
Explanation:
After the gated channels close, which is as a result of depolarization of voltage, the positive charge that has been increased in the cell will make the potassium channels to open and this will gush out of the cell through its electrochemical gradients. When potassium ion move out of the cell, the membrane potential begin to get to resting potential.
doing a aslam answers 70 questions and gets 34 correct answers Imran answers 85 questions and gets 61 correct answers give their scores in percentages and find out who is better at quizzes
Answer:
See the answer below
Explanation:
Aslam answered 34 correctly out of 70;
Percentage score = 34/70 x 100%
= 48.57%
Imran answered 61 correctly out of 85;
Percentage score = 61/85 x 100%
= 71.76%
The percentage score of Imran is 71.76 while that of Aslam is 48.57, hence, Imran is better than Aslam when it comes to quizzes.
How has cell technology most likely benefited the commercial flower industry?
- Growers can quickly grow disease-resistant plants from tissue cultures.
-Growers can study plant growth patterns under many different conditions.
-Growers can grow seedlings without using expensive fertilizers.
-Growers can create new flower colors without using cross-pollination.
Answer:
The answer is: Growers can quickly grow disease-resistant plants from tissue cultures.
Explanation:
Took the test.
The most likely benefit of cell technology to the commercial flower industry is that the growers can quickly grow disease-resistant plants from tissue cultures. Thus, the correct option is A.
What is Cell technology?Cell technology include all the major steps such as the production, reprogramming or genetic editing of cells for the development of cell therapies or for the therapeutics which are produced by cells.
Cell technology has been found to be helpful in the development of new varieties of crops, commercial flower industry, medicinal industry for the production of cell therapies and therapeutics as well. Cell technology has been helpful for the production of disease-resistant varieties of crops.
Therefore, the correct option is A.
Learn more about Cell technology here:
https://brainly.com/question/23616830
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