what is the significance of t tubules?
Explanation:
The significance tubules are the site of spermatogenesis where germ cell develop into spermatozoa in close interaction with sertoli cells.Answer:
Explanation:
T-tubules are invaginations of the plasma membrane, which are present exclusively in striated muscle. Their role is to maintain the SR calcium store under the tight control of membrane depolarization via the voltage sensor channel DHPR .
Describe ways that water pollution occurs. Describe how greenhouse gases contribute to climate change.
Greenhouse gases are transparent to incoming (short-wave) radiation from the sun but block infrared (long-wave) radiation from leaving the earth's atmosphere. This green house effect traps radiation from the sun and the planet's surface.
Which allows materials to enter and exit the nucleus?
pore
nucleolus
chromatin
cell wall
Answer:
a pore allows materials to enter and exit the nucleus
When thinking about all 4 types of macromolecules discussed, which of the following statements are true? Select all that apply.
Monomers are linked together by hydrolysis.
Monomers are joined together to form functional polymers
Monomers are linked together by dehydration synthesis.
Monomers join together via hydrogen bonds.
Climate change as well as other human-driven environmental changes continue to cause loss of biodiversity in the
coming decades in addition to high rates of species extinctions. Biodiversity is a term that can be used to describe
biological diversity at a variety of different scales, but for now let's consider species diversity. Each rectangle represents a
plant community containing individuals of various species indicated by color and the total number of individuals
corresponds to the productivity of the ecosystem. Based on trends illustrated by the images, what conclusions apply?
Choose ALL that are appropriate.
-)))
A)
While species may fluctuate, biomass remains constant.
Scientific
Calc
B)
The green species increases in abundance during warm years,
C)
The productivity of the ecosystem decreases as the climate changes.
D)
Invasive species, represented by red, move in and displace native
species.
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E)
Decrease in one species is compensated for by an increase in another
species.
24)
Answer:
e) decrease in one species is compensated for by an increase in another. is the answer.☺️Traditionally, the classification of fungi has been based on the nature of sexual stages of the life cycle. For Penicillium, however, no sexual stages of the life cycle have been observed. Without evidence from sexual stages, speculate about other possible sources of evidence that scientists may use in classification.
Answer:
Without the evaluation of sexual stages, fungi can be classified according to the type of colony they present, the speed of growth, the formation of pigments and the type of coloration.
Explanation:
Although the observation of sexual stages is extremely efficient for the classification of fungi in the laboratory. This type of analysis is not always possible to be carried out. In that case, scientists need to find other methods that allow for the classification of fungi. These methods are carried out with the help of a microscope, where scientists observe the morphology of the fungi and are able to classify them according to the type of colony they present, the speed of growth, the formation of pigments and the type of coloration.
Which species of gymnosperms has reddish cones and strap like leaves that tear up from the harsh desert conditions?
A. gnetum
B. welwitschia
C. ephedra
Answer:
welwitschia
Explanation:
The structure that hotds two chromosomes together until they separate for cett divisionois
1.chromatid .
2.cytoplasm .
3.chromatin .
4.centromere
Jeremiah is an 10-year-old male who is short in stature. His parents have become concerned as Jeremiah is now wetting the bed, drinking a lot of water, and often appears tired/fatigued. The doctor orders several blood tests after Jeremiah's urine test was positive for glucose and ketones.1. What disease(s) should be ruled out in this patient?2. List the tests that are used to diagnose diabetes.3. List the symptoms of diabetes.
Answer: 2) Tests used to diagnoses diabetes: Oral Glucose Tolerance Test, Fasting Glucose Test, Hemaglobin A1c, Random Blood Suger Test.
3) unexplained weight loss, frequent unination, lethargic, excessive thirst, nausea , and vomititng, increased hunger even though is still eating, blurry vision, bed-wetting in childern who did not do it previously, dry mouth,
Explanation:
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(iii) Enzymes P, Q and R (choose any one)
P - pepsin / protease
Q - amylase / carbohydrase
R - lipase / trypsin / protease / amylase
(c) There are many ways in which different types of enzymes are using in preparing baby foods such as the amylase breaks down the starch and the starch breaks down to maltose or glucose. The protease breaks down protein and the protein breaks down into amino acids. The lipase breaks down fats and then the fats break down to gylcerol.
Hope it's help you.If it is right
Determine the correct energy transformations during the generation of electricity from fossil fuels.
A. Heat to Chemical to Electrical to Kinetic
B. Heat to Kinetic to Electrical to Chemical
C. Kinetic to Chemical to Heat to Electrical
D. Chemical to Heat to Kinetic to Electrical
Answer:
D. Chemical to heat to kinetic to electrical
The correct energy transformations during the generation of electricity from fossil fuels are D) Chemical to Heat to Kinetic to Electrical
What converts chemical energy to kinetic energy to electrical energy?
Batteries used in torches, computers, toys, and camera cells, are actually made up of chemical cells which convert the chemical energy from the batteries to the electrical energy required for the devices to work well.
What are the main energy types?Examples of these are light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy, and so on. Each form can be converted or changed into the other forms.
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ATP is considered as nature dehydrating agent.what does it means?show with the help of examples
Answer:
that man is mental
HELP ASAP PLEASE HELP FAST
According to cell theory, all new cells...
A. must share DNA with existing cells.
B. must eat.
C. come from other cells.
Answer:
с
Explanation:
all new cells come from other cells
What does a botanist study
Answer:
Botany is the scientific study of plants—how plants function, what they look like, how they are related to each other, where they grow, how people make use of plants, and how plants evolved.
I HOPE THIS WILL HELP YOUHAVE A GREAT DAY :)
In crude oil affect eggs and larvae of fish and increase mortality.
O a.
Hydrocarbon
O b.
PAH
O c.
liquid petroleum
Answer:
its c liquid petroleum 100% surr
Gene X always produces the same mRNA (one splice form) and the same protein in all cells in which it is expressed. The same amounts of gene X mRNA and protein are present in brain, kidney, and heart cells. However, the activity associated with the protein is present only in the heart. Which of the following are possible explanations?
a. A splicing factor necessary for removing all of the primary transcript's introns is present only in the heart.
b. A splicing factor necessary for removing all of the primary transcript's introns is present only in the brain and kidney.
c. Protein X is phosphorylated only in the heart.
d. Protein X is phosphorylated only in the brain and kidney.
There are two explanations for this phenomenon: phosphorylation of the protein X in the heart activates its function (Option C) or phosphorylation of the protein X in the kidney and the brain deactivates its function (Option D). Therefore, both Option C and Option D are correct.
Phosphorylation is a posttranslational protein modification that is capable of activating or deactivating protein function.
Phosphorylation alters the three-dimensional structure of a protein, thereby modifying its function (i.e., activate or deactivate the target protein).
Phosphorylation occurs at specific amino acids (e.g., serine and threonine residues) of the target protein.
Moreover, mRNA splicing (RNA processing) occurs before the protein state, it is a transcriptional process. This process consists in removing the non-coding regions or 'introns' from pre-mRNA and subsequent joining protein-coding regions or 'exons' to enable the translation of the mRNA into a protein.
In consequence, in this case, it is possible that 1-phosphorylation of the protein X in the heart activates its function, or 2-phosphorylation of the protein X in the kidney and the brain deactivates its function. Therefore, both Option C and Option D are correct.
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9. Which is the SI base unit of mass?
liter
meter
pound
kilogram
Answer:
it's D, KILOGRAM
Answer:
The answer of this question is kilogram
Explanation:
may this answer is helpful for you
Which of the following describes a parasite
1 a bear that kills and eats fish?
2 a worm that lives inside a bear.
3 a dish that is killed and eaten.
4 a bear that has worms in its gut
Answer:
2
Explanation:
A parasite is an organism that feeds on the intestine of living organiy
The difference between active transport and passive transport is that a. concentration gradients are involved in one and not in the other. b. glycolipids play a role in one and not in the other. c. one requires expenditure of energy by the cell and the other does not. d. ions are transported into and out of the cell by one process and not by the other.
Answer:
D) ions are transported into and out of the cell by one process and not by the other
plz give a correct answer for the question how do canine and molar differ
Answer:
Canines are the sharp, pointed teeth that sit next to the incisors and look like fangs. Dentists also call them cuspids or eyeteeth. Canines are the longest of all the teeth, and people use them to tear food
Molars are the flat teeth at the rear of the mouth. Each molar typically has four or five cusps. They are used exclusively for crushing and grinding. Wisdom teeth are also called third molars. They erupt from the age of 18 onwards but are often surgically removed.Their function is similar to that of the premolars, to grind, tear, and crush food. Molars have a large flat biting surface which makes them perfect for this job.
Explanation:
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Draw the egg and label it
Answer:
What egg?
Explanation:
Answer:
/’‾‾‾`\
/ \
| |
\.____./
What are the types of honey bee?
Answer:
kdjjdndkskkdjckfkfjsjjsjsmslaldjnxjcjc
Anyone know this??? Help!!!
Devise an experiment to test the effect of pH on the activity of biological washing powder
Answer:
I think you are nepali yeah but I don't have your question ❓ answer
what is the full form of ATP?
Answer:
ATP stands for Adenosine triphosphate, an organic molecule responsible for driving nearly all cellular mechanisms and processes in living organisms. Hence, biologists often refer to ATP as the “energy currency of the cell.”
Which of the following does NOT relate to water?
A. Dehydration damages cells.
B. 70% of the human body.
C. Controls negative feedback mechanisms.
D. Contains and moves ions in and out of cells.
The following that does not relate to water is it contains and moves ions in and out of cells. The correct option is D.
What is water?Water is a chemical compound made up of hydrogen and oxygen. It is a necessary part of life. As our body is made up of 90% of water, and without water, organisms would not survive.
The transport of ions and molecules in and out of the cell is done by the cytoplasm filling in the cell.
Thus, the correct option is D. Contains and moves ions in and out of cells.
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which statement describes a process associated with meiosis
Answer:
homologous chromosomes pair up
Answer:
Haploid cells join to form an organism that has a complete set of chromosomes.
Explanation:
b) The chemical equation below summarizes photosynthesis.
Energy (sunlight) + 6 H20 + 6 CO2 - C6H1206 + 6 02
Write a similar chemical equation for cellular respiration. Be sure to include a
description of the form of energy that results from cellular respiration. (3 points)
Pls help me
Answer:
The chemical equation for cellular respiration would be: C6H12O6 + 6 O2 → 6 CO2 + 6 H2O.
Explanation:
C6H12O6 (1 Glucose molecule) + 6 O2 (6 Oxygen molecules) → 6 CO2 (6 Carbon dioxide molecules) + 6 H2O (6 Water molecules)
HELP ASAP NEED HELPPPPP
Answer:
insects is a write answer.
Many anti-evolutionists believe that since science doesn't have answers for all questions; scientific conclusions are not necessarily correct. This attitude reflects a failure to understand the nature of science. What is the general nature of scientific thinking? In what way is science "self correcting"?
Answer:
In science, accepted theories do not represent absolute truths. A scientific theory is accepted when there is much evidence available that support its statements, but new lines of evidence can modify original presumptions
Explanation:
A scientific theory is a plausible explanation of a particular phenomenon of the natural world, which has been many times tested and verified by using the scientific method. The accepted theories are progressively modified (or even overturned) as new lines of evidence emerge. In consequence, a scientific theory is composed of statements that we consider as truths regarding the available evidence, but we have no absolute certainty that such statements are true. The ability to self-correct is fundamental in science and it happens when we discover that the original statements of a scientific theory were wrong, thereby new lines of evidence allow us to correct the error and/or develop new scientific theories.
