Answer:
Meteorites, which are the very components of our planets (through the process of accretion), are the remnants of the Solar System's origins. Dating meteorites thus allows us to give a lower age to the Solar System (4,56 billion years old).
Explanation:
if the two alleles for a particular gene are identical the gene pair is:
Answer: h o m o z y g o u s
Explanation: I did the test
What are the roles of the nucleus, cytoplasm, mitochondria, and the cell membrane in eukaryotic cells? in your own words nothing from the internet
Answer:
What are the roles of the nucleus, cytoplasm, mitochondria, and the cell membrane in eukaryotic cells?
Explanation:
1.The cell membrane holds the cell's internal contents from its environment
2.the nucleus, the cell's "brain", holds the cell's DNA in the form of chromosomes, and makes protein codes that tell the other organelles to function in a certain way once the codes are made into literal proteins and passed around the cell
3.The cytoplasm is the gelly fluid inside the cell. It is the place for chemical reaction, and provides a place where other organelles can operate within the cell properly, and the cytoplasm keeps the cells from moving around.
4. The main job of the mitochondria is to convert nutrients into energy through cellular respiration, making ATP. the mitochondria are known as the powerhouse of the cell. In addition to supplying energy, the mitochondria is involved in a range of other processes,like signalling, cellular differentiation, cell death, as well as control of the cell division cycle and cell growth.
what cells release histamine during allergic responses
Answer:
Histamine is a substance that is released by the body during an allergic reaction. Mast cells, which are a type of white blood cell, release the histamine, and this triggers a process which is most commonly referred to as the “inflammatory immune reaction”.
Explanation:
Antihistamine solutions can reduce allergies. I am allergic to mosquito bites.
The cells release histamine during allergic responses are the mast cells.
What types of cells are involved in allergy?Eosinophils, mast cells, and basophils all have been first diagnosed and defined with the aid of using Paul Ehrlich withinside the past due nineteenth century. Since then, it has end up clean that those 3 cells kinds have an awful lot extra in not unusualplace than their popularity with the aid of using the equal scientist.
Mast cells are multifunctional bone marrow-derived tissue-residing cells which might be the principal manufacturer of histamine withinside the frame. H1R are expressed in lots of cells, along with mast cells, and are concerned in Type 1 hypersensitive reaction reactions.
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WHAT IS MEDIAN??????????????
Answer:
The middle value in a set of numbers arranged in increasing order. If there is an even number of values, then median is the average of the middle two values.
In anatomy (as your question is marked Biology), the median is situated in the middle; central, intermediate.
what’s the correct answer?
bio
Answer:
It is a type of homogenous mixture.
Explanation:
I do not understand this. It is about "Membrane Transport".
Which statement best describes the germ theory of disease?
A -Diseases are caused by bad-smelling poisonous vapors that contain decaying matter.
B - Diseases are created or generated spontaneously within the body.
C - Diseases can be isolated and grown in cultures.
D - Diseases are caused by the presence and action of specific microorganisms.
Answer:
D. Diseases are caused by the presence and action of specific microorganisms.
Explanation:
ecosystem with same climate and similar communities
Answer:
A biome is a group of ecosystems that have the same climate and similar dominant communities
since dna is replicated semiconservatively, what does each new daughter cell receive from the parent cell after replication and mitosis?
Answer:
the exact same organelles from the parent
Explanation:
how is anaerobic fermentation similar to aerobic respiration
Answer:
Anaerobic respiration begins the same way as aerobic respiration and fermentation.
Explanation:
However, instead of ending with glycolysis, as fermentation does, anaerobic respiration creates pyruvate and then continues on the same path as aerobic respiration.
Complete the blanks in the following paragraph using the appropriate words from the list:
anterior, bilateral, inferior, lateral, medial, posterior, superior
Dominic's friends thought they were really funny when they dropped a water balloon on his head! The water drenched the (1) ___ portion of his head and then ran down the (2) ___ portion of his body, getting the front of his shirt all wet. He and his younger brother decided to get back at his friends by sneaking up on them with their water guns. They tiptoed up behind C.J., soaking his back and the entire (3)___ of his body. Next, they snuck up on Tony. Dominic sprayed down the middle, (4)___ part of Tony's body while his brother sprayed the arms and other (5) ___ portions. Good thing it was a hot day because everyone was soaked by the end of the game!
Answer:
1 Superior
2 Anterior
3 Posterior
4 Medial
5 Bilateral
Which cell structures work together to form a pseudopod?
A. cell wall and nucleus
B. eyespot and chloroplast
C. cytoplasm and plasma membrane
D. contractile vacuole and mitochondria
cytoplasm and plasma membrane
Pseudopodia are formed by some cells of higher animals (e.g., white blood corpuscles) and by amoebas. During amoeboid feeding, pseudopodia either flow around and engulf prey or trap it in a fine, sticky mesh.
where are the motor proteins that move chromosomes toward the poles of the mitotic spindle located?
Answer:
They are at or near the ends of the microtubules. I hope this helps you! :D
Microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.
What are motor protein?Motor protein are defined as a group of molecules with the ability to travel across the cytoplasm of animal cells. Molecular motors called motor proteins move along the cytoskeletal filaments of the cell by hydrolyzing ATP. They provide a variety of tasks for biological systems, such as facilitating intracellular trafficking along biopolymer filament tracks and regulating filament sliding during muscle contraction.
Microtubules are defined as the cytoskeleton is made up of tubular-structured polymers, which are present throughout the cytoplasm. Microtubules play a variety of roles in dividing cells, including the construction of the mitotic spindle and axon extension in neurons.
Thus, microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.
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What muscle supinates the hand?
Answer:
Braquirradialis
Explanation:
El músculo supinador, también llamado supinador corto para diferenciarlo del supinador largo (braquirradialis) es un músculo ancho, dispuesto alrededor y sobre la cara lateral del codo y la parte superior del antebrazo. Se extiende desde el epicóndilo lateral y el cúbito hasta el radio.
Nervio: Rama profunda del nervio radial, dura...
Acción: Es supinador (gira el radio de medial a ...
Origen: Epicóndilo lateral del humero y cúbito
Arteria: Arterias recurrentes radiales
What do Pulmonary veins carry?
Answer:
Pulmonary veins: The veins do the opposite job of pulmonary arteries and collects the oxygenated blood and carry it from the lungs back to the heart. The veins merge into larger veins. Each lung has two pulmonary veins that deliver blood to the heart's top left chamber or atrium.
Explanation:
sana makatulongwhich from of weathering most likely caused the reddish coloring of the rocks
Answer: Oxidation
Explanation: Hope it helps
The lens of the eye is held in place by the ___
Answer:
The lens of the eye is held in place by the iris
Explanation:
hope it helps you
Answer:
Ciliary Muscles
Explanation:
The muscles hold the lens in place but they also play an important role in vision. When the muscles relax, they pull on and flatten the lens, allowing the eye to see objects that are far away.
what is the effect of water temperature on corals from inshore and offshore reefs?
Answer:
When the water gets too warm, the algae can no longer live inside corals, so they leave. The corals then turn from green to white, called coral bleaching. Climate change has been causing the Earth's air and oceans to get warmer. With warmer oceans, coral bleaching is becoming more widespread.
Explanation:
When the water temperature rises too high, algae can no longer live inside corals and leave. Coral bleaching occurs when the corals turn from green to white.
What are coral reefs?A coral reef is an underwater ecosystem characterized by corals that build reefs. Reefs are made up of coral polyp territories hosted along by calcium carbonate.
The vast bulk of coral reefs are mainly composed of stony corals, which have polyps that coalesce together.
Coral reefs grow in shallow water with temperatures ranging from 68° F to 97° F. The Indo-West Pacific biogeographic region contains more than 90% of the world's coral reefs.
When the temperature of the water rises too high, algae can no longer live inside corals and must leave. Coral bleaching occurs when corals alter color from green to white.
The Earth's air and oceans are becoming warmer as a result of climate change. Coral bleaching is becoming more common as the oceans warm.
Thus, this is the effect of water temperature on corals from inshore and offshore reefs.
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Why did Ibrahim conclude that the dorsal spines were not used to support a hump or to regulate body
temperature?
Chemical composition of dorsal spines provides information about its function as regulation of body temperature.
The dorsal spines were not used to support a hump or to regulate body temperature because of the chemical composition of the spines. Ibrahim found that the spines were made up of bones having few blood vessels and were likely wrapped tightly in skin which can't perform the function of thermoregulation in the body.
In order to regulate temperature of the body, more blood vessels are needed and we know that in dorsal spines the structure is bony and less number of blood vessels so we can conclude that chemical composition of dorsal spines provides information about its function as regulation of body temperature.
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how does the colour of star help to find its age
Answer:
As stars age, they run out of hydrogen to burn, decreasing the amount of energy they emit. Thus, younger stars can appear bluer while older ones appear more red, and in this way, a star's color can tell us something about that star's age.
Explanation:
How do you remove a filter in Excel?
O Clear Filter
O De-Filter
O Cancel Filter
O Halt Filter
Answer:
the answer is cancle filter
if blood calcium levels drop below 8.5 mg/dl which hormone is likely to be activated?
Answer:
Hello!!
If blood calcium levels drop below 8.5 mg/dl... receptors in the parathyroid gland release parathyroid hormone.
Hope this helps!!
what is the material salad spinner
Answer: its made of plastic
Explanation:
Answer:
salad spinners are usually made from plastic
1. How can studying compounds in plants and animals benefit people? Give an example of how a compound found in a plant has been used to benefit humans.
2. What is meant when describing water as a polar compound?
Please answer what the question is asking exactly many points will be given.
Answer:
It is beneficial to study plant and animal compounds for a multitude of reasons such as Sanitation, Bacterial fighting, and many more. An example of a plant compound that has benefited humanity would be penicillin which is derived from plants, it is considered the first true antibiotic.
Explanation:
Before 1928, humanity had conquered most of its enemies and people were only limited in lifespan by internal mechanisms being disrupted or failing, such as cancer, genetic errors,viruses, and BACTERIA. But in 1928 by accident a scientist discovered penicillin and finally deaths by bacteria were dropping to the point where in the past a mere cut could mean death by bacterial infection when compared to the present, humanity now doesn’t even consider bacterial infection, and that is all due to the power of penicillin and other antibiotics.
Water is a polar compound because there is a positive hydrogen end and a negative oxygen end, this is caused by an uneven electron distribution
Read the statements. The molecule that gives skin its color is a molecule called melanin. In some people, skin contains no melanin These people have white skin and are called albinos, Which statement explains why some people cannot form the protein that produces melanin?
○Their genes for the production of that protein do not function
○They do not get enough nutrients to build the protein
○ Their cells do not get enough energy to build the protein
○The molecules they produce we used by organs other than the skin
Answer:
(b) is your answer of question.
Compare and contrast the immune system and nervous systems
similarities:
The immune system and the nervous system maintain extensive communication, including 'hardwiring' of sympathetic and parasympathetic nerves to lymphoid organs. Neurotransmitters such as acetylcholine, norepinephrine, vasoactive intestinal peptide, substance P and histamine modulate immune activity.
action potentials are conducted from the baroreceptors to the brain via which nerve?
Answer:
Action potentials are conducted from the baroreceptors to the brain via... the vagus nerve.
Explanation:
Hope this helps.
who disproved the theory of spontaneous generation
What determines how chromosomes line up during meiosis?
Look at structure A Use the drop downs to answer the questions about this structure What is the name of this part of the flower What is the function of this part of the fower? A
Answer:
What is the name of this part of the flower?
✔ sepal
What is the function of this part of the flower?
✔ to enclose the flower bud
Answer:the person above me is right.
Explanation: