Which two of the DNA base pairs are the larger type, known as purines?
Adenine and Cytosine
Cytosine and Thymine
Adenine and Guanine
Thymine and Guanine
Answer: Adenine and Guanine are purines.
Explanation:
Purines are larger than pyrimidines because they have a two-ring structure while pyrimidines only have a single ring.
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.
A _____ is something in the environment that causes an organism to respond.
Answer:
Stimulus
Explanation:
Answer:
stimulus or stimuli (plural)
Suppose you have two pieces of modeling clay. One piece contains more clay than the other. How do the two pieces of clay differ?
which part of the cell membrane in nonpolar and prevents the cell from dissolving
Answer:The part of the cell membrane that is nonpolar and prevents the cell from dissolving is called the Nonpolar Fatty Acids.
Explanation:The part of the cell membrane that is nonpolar and prevents the cell from dissolving is called the Nonpolar Fatty Acids.
Which of the following describes a state of equilibrium?
Answer: My best guess would be B but i might be wrong that sounds most right to me. :)
Explanation:
Describe the term "semi-permeable" (or "selectively-permeable) membrane. Why is it important?
Answer:
A semi-permeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by osmosis. The rate of passage depends on the pressure, concentration, and temperature of the molecules or solutes on either side, as well as the permeability of the membrane to each solute. Depending on the membrane and the solute, permeability may depend on solute size, solubility, properties, or chemistry. How the membrane is constructed to be selective in its permeability will determine the rate and the permeability. Many natural and synthetic materials which are rather thick are also semipermeable. One example of this is the thin film on the inside of the egg.
Explanation:
An example of a biological semi-permeable membrane is the lipid bilayer, on which is based on the plasma membrane that surrounds all biological cells. A group of phospholipids (consisting of a phosphate head and two fatty acid tails) arranged into a double layer, the phospholipid bilayer is a semipermeable membrane that is very specific in its permeability. The hydrophilic phosphate heads are in the outside layer and exposed to the water content outside and within the cell. The hydrophobic tails are the layer hidden in the inside of the membrane. The phospholipid bilayer is most permeable to small, uncharged solutes. Protein channels are embedded in or through phospholipids, and, collectively, this model is known as the fluid mosaic model. Aquaporins are protein channel pores permeable to water. Information can also pass through the plasma membrane when signaling molecules bind to receptors in the cell membrane. The signaling molecules bind to the receptors, which alters the structure of these proteins. A change in the protein structure initiates a signaling cascade. The G protein-coupled receptor signaling provides is an important subset of such signaling processes.
Are plant cells and animal cells exactly the Same? Explain and give examples.
Answer:
Explanation:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. ... Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.
Answer:
They are not.
Explanation:
Yes they are both cells but plant cells have organelles that the animal cells don't have. Such as chloroplast, the cell wall, and the central vacuole.
⚠️⚠️which of the following statements is true for exocytosis⚠️⚠️
A) it does not require energy
B) it helps the cell take in large molecules
C) it occurs without the help of any cell organelle
D) it is a form of active transport
Answer:
A it does not require energy
Explanation:
beacause i said so
Which of the following working hazard categories qualifies as an environmental hazard?
heat exposure
slips and falls
unclean conditions
equipment/machinery
Answer:
The above answer is correct
Explanation:
Edg 2020-2021
Why might a jogger develop lactic acid in his or her muscles
Answer:
here
Explanation:
the more your body is moving and is pumping blood there is in your muscles which start to produce lactic acid
which member of the food chain has the most sunlight energy available to it
Answer:
The answer is the first trophic level.
Explanation:
This level contains the producers, which are all of the photosynthetic organisms.
Hypertonic solutions have high solute and low water compared to another solution.
True
False
Answer:
true
Explanation:
When light intensity is below above 400 umol photons/m2/s, do sun plants or shade plants have a higher rate of photosynthesis?
Answer:
-Abiotic factors such as light, water, and temperature
-The more light, the faster the plant is able to photosynthesize, however, plants reach its level of maximum photosynthesis if the intensity of light is too high
-Temperatures above or below range of 0 degrees Celsius and 35 degrees C can cause damage to enzymes, ceasing photosynthesis
-If too much or too little water is applied, plant cells may wither and die, or explode
Explanation:
When environmental light intensity is below 400 umol phs/m²/s, shade plants have a higher photosynthetic rate. Above this level, sun plants have a higher rate of photosynthesis.
---------------------------------
The photosynthetic rate depends in part on the plants' environment.
Being all conditions favorable -light availability, water, and temperature level-, photosynthesis intensity increases with light intensity.
The more light intensity and exposure, the better and faster the plant photosynthesizes.
However, there is a limit for all these environmental factors over which the photosynthetic rate can be affected or reach its maximum point.
Concerning light, there is an intensity level when exposed to a standard unit of light intensity, at which plants express their highest photosynthetic rate.
It depends, among other reasons, on the type of plant.
Shade plants
Low levels of light are enough for plants that grow in the shade.
Shade plants can express their highest photosynthetic rate at intensities of 400 umol photons/m²/s. From this point on, the photosynthetic rate remains equal.
Sun plants
On the other hand, plants that grow in the sun need much higher levels of light to express their highest photosynthetic rate.
Sun plants keep increasing their photosynthetic rates at intensities higher than 400 umol photons/m²/s, expressing their highest performance near 1000 umol photons/m²/s.
Comparing both types of plants,
At lower light intensity (0-300 umol photons/m²/s), the photosynthetic rate of shade plants is higher than the one of sun plants.
Near 400 umol photons/m²/s, the photosynthetic rate of both types of plants is almost equal.
Over 400 umol photons/m²/s, the photosynthetic rate of shade plants reaches their maximum level, while the sun plants one keeps increasing.
Between 800 -1000 umol photons/m²/s, the photosynthetic rate of sun plants reaches their maximum level.
According to this information,
below 400 umol photons/m²/s, shade plants have a higher rate of photosynthesisabove 400 umol photons/m²/s, sun plants have a higher rate of photosynthesis
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https://brainly.com/question/21837774?referrer=searchResults
Which of the following is true of prokaryotic cells?
Answer:
what are the choices? hihihihihiu
if your fathers dominant gene was blond hair, but your mother's dominant gene was brown hair, what would the Childs hair color be?
Answer:
Brown Or a Hazel color because a lot of kids come out with brown/hazel hair so I'm pretty sure Brown Or Hazel color
Explanation:
Ok
i am horrible at science. please help
breathing more deeply and frequently
A plant cell is a eukaryotic cell. True or false?
Pleaser help please I need help
Which is endocrine function?
A. Pyloric glands release mucus to the stomach
B. Adrenal glands release adrenaline into the blood.
C. Esophageal glands release mucus into the esophagus
D. Salivary glands release saliva into the mouth
Answer:B. Adrenal glands release adrenaline into the blood.
Explanation:
The adrenal glands are small glands located on top of each kidney. They produce hormones that you can't live without, including sex hormones and cortisol. Cortisol helps you respond to stress and has many other important functions. With adrenal gland disorders, your glands make too much or not enough hormones
Adrenal glands are a type of endocrine glands that release hormones that include adrenaline into the blood. Thus, the correct option is B
Endocrine glands secrete their products directly in the surrounding interstitial fluid or blood, and not through ducts.
Adrenal glands are a pair of endocrine glands that are present superior to each kidney. It comprises of two distinct regions - adrenal cortex and adrenal medulla.
Adrenal cortex is the outer region of the adrenal gland that produces and secretes hormones like mineralocorticoids, glucocorticoids and androgens.
Adrenal medulla is the inner region of the adrenal gland and produces and secretes the hormones adrenaline and noradrenaline.
Learn more about adrenal glands in:
https://brainly.com/question/30671890
#SPJ2
o Which of the these items contains carbon?
WARM UP
Answer:
All of them I guess
No doubt
Answer:
All of them
Explanation:
1. What environmental issue are you most concern about? Why?
2. How can you contribute to minimize the environmental problem if not totally
prevented?
Answer:
1. Global warming (as we pass a threshold, it may be irreversible)
2. Reduce the emission of greenhouse gases
Explanation:
Climate change is a general phenomenon associated with the effects of global warming caused by anthropological activities, especially the emission of greenhouse gases (e.g., carbon dioxide, methane, nitrous oxide, etc). It has been shown that global warming is causing an increase in the temperature on the planet at a speed unprecedented since the beginning of the Industrial Revolution. The increase in greenhouse gases in the atmosphere is a direct consequence of human activities, especially from the use of fossil fuels in electricity, heating, transportation, etc. In consequence, it is possible to reduce the impact of global warming by using renewables climate-friendly energy resources, for example, by using solar panels for electricity, solar water for heating and eolic energy for industry (electricity). In this context, it should be taken into account that global warming may be irreversible, and we have the tools to stop it before it is too late.
Which of the following has the least resistance? *
Long narrow metal wire
A short thick metal wire
Wood
Plastic
Answer:
a short thick metal wire
Explanation:
i hope this helps:)
What are the functions of a catalyst in a reaction? select all that apply
A)sped up the reaction.
B:Increase the activation energy needed
C: lower the activation energy needed
D:maintain the reaction
E: slow down the reaction
Answer:A, C
Explanation:
Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.
Which is the answer A B C Or D
Answer:
I believe that it might be choice A, but I'm not entirely sure.
how does atp provide the energy cells need
Answer:
Adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes.In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work.
ATP provides the energy required by cells by releasing a phosphate group.
ADENOSINE TRIPHOSPHATE (ATP):
Adenosine triphosphate (ATP) is a biological molecule that stores and releases energy for living cells. Structurally, ATP is made up of three components namely: phosphate group, adenine base and ribose sugar. ATP stores energy when a phosphate group is added to an ADP molecule while it releases energy when a phosphate group is released from the ATP molecule to form ADP and inorganic phosphorus (Pi). Therefore, ATP provides the energy required by cells by releasing a phosphate group.Learn more at: https://brainly.com/question/20263891?referrer=searchResults
Which process must the cell undergo to have identical cells at the end of cell division?
The answer is mitosis
Nitrogen fixation is done mostly by....
Answer:
Nitrogen fixation occurs between some termites and fungi. It occurs naturally in the air by means of NO x production by lightning. All biological nitrogen fixation is effected by enzymes called nitrogenases. These enzymes contain iron, often with a second metal, usually molybdenum but sometimes vanadium.
Explanation:
Answer:
Rhizobium and blue green algae
If the somatic cells of a dog contain 78 chromosomes, then after mitosis the new somatic cells would contain_____ chromosomes.
what organisms are prokaryotic
can you pls help me ??