Answers
Answer:
B (nematocysts)
Explanation:
A nematocyst is a long, thin, coiled stinger. It has a barb that may inject poison. These tiny poison "darts" are propelled out of special cells. They are used to attack prey or defend against predators.
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Answer:
It is B the nematocysts they can defend against predators.
Related Questions
Choose the answer that correctly lists, in chronological order, the events involved in synaptic transmission.
a: A nerve impulse reaches the synaptic knob.
b: Neurotransmitter molecules diffuse across the synaptic cleft.
c: A nerve impulse begins in the postsynaptic cell.
d: Neurotransmitter molecules bind to receptors in the postsynaptic cell.
e: A voltage change occurs in the postsynaptic cell.
Answers
Answer: hi im brain bot
im not sure i know this one im stumped
Explanation:
The event occurs as nerve impulse reaches the synaptic knob, neurotransmitter molecules diffuse across the synaptic cleft. These molecules bind to receptors in the postsynaptic cell and voltage change occurs in the postsynaptic cell. A nerve impulse begins in the postsynaptic cell. The correct option is C.
What is synaptic transmission?The metabolic pathway by which a neuron interacts with a target cell across a synapse is known as synaptic transmission.
Chemical synaptic transmission is characterized by the release of a neurotransmitter from the presynaptic neuron and the binding of the neurotransmitter to specific post-synaptic receptors.
Synaptic transmission is the process by which a nerve impulse (action potential) travels from the presynaptic neuron to the post-synaptic neuron across the synaptic gap. An action potential is an electrical impulse that travels down the axon of a neuron.
As the nerve impulse arrives at the synaptic knob, neurotransmitter molecules diffuse across the synaptic cleft. These molecules bind to receptors in the postsynaptic cell, causing voltage changes in the cell. and finally nerve impulse begins in the postsynaptic cell.
Thus, the correct option is C.
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Your question seems incomplete, the probable complete question is attached below:
An environment in which nonliving substances and living organisms work together is called
A) a population
B) a community
C) an ecosystem
Hi can someone help me w this? thanks!
Answers
Answer:
the answer is
c.) ecosystem
Explanation:
ecosystem is a community of living things and non living things that interact in the same environment
Extra Information:. Population- is a group of individuals of the same species living within an area
. Species - is a group of individuals that can reproduce naturally with one another and create a fertile offspring
.Community- is a group of living and non living things in the same environment
.Biotic factors - living things such as plants,animals,bacteria,fungi ... that are found in ecosystems
.Abiotic factors - non living things such as water,air,sans,light.. that are found in ecosystems
HOPE THIS HELPDS :D
Answer:
ecosystem
Explanation:
ye
to control and co-ordinate the functions in blanks the true some chemical what are they
Answers
Answer:
yes
Explanation:
why do all of the planets orbit in the same direction?
Answers
Answer:
Due to retrograde orbit.
Explanation:
Retrograde orbit means that it's orbiting the opposite way of the parent body; In this case, the sun is rotating counterclockwise, and retrograde orbit reverses the direction, clockwise.
Osteoclasts are responsible for which of the following processes?
Osteogenesis
*Resorption
Ossification
Oseogenesis
Answers
Answer:
b. Resorption
Explanation: is correct
How can I use the analogy of building blocks to explain how genes relate to the diversity of life?
Answers
Answer:
-Building blocks are the fundamentals to an overall result, in this case being the characteristics of a human being.
-This is related to genes as the variety of building blocks can make a completely different "outcome" just as a different gene can trigger a different characteristic.
- Without different building blocks, all outcomes will be the same, just as humans. So a variety of "building blocks" are needed for diversity.
Explanation:
Hope this helps.
What is the function of the respiratory system?
to transport materials in the body
to break down food
to breathe
to rid the body of waste
Answers
Answer:
To breathe... Respiratory System
Explanation:
Food is broken down by the Digestive System
The body is rid of waste by the Excretory System
Materials are transported by the Circulatory System
what is importance of Active transport in animal???
Answers
Answer:
I don't think so
Explanation:
transport animals can change everything to others
Which of the following is a healthy weight loss strategy?
Answers
Answer:
b. Make each of your meals last 20 minutes.
Explanation: is correct answer
blood flows more slowly in the capillaries than in the aorta. why?
Answers
Answer:
because it a smaller part
Explanation:
Due to the capillaries' large overall cross-sectional area, blood flow there is slow, allowing for adequate nutrition exchange.
How blood flows through blood vessels?The rate of blood flow dramatically decreases as it enters arteries, arterioles, and eventually, capillary beds, slowing to roughly 0.026 cm/sec, or 1,000 times slower than the aorta.
The capillaries, where blood flow is the slowest, provide time for the exchange of gases and nutrients. A force that opposes a fluid's flow is called resistance.
The majority of blood vessel resistance is caused by the size of the vessel. Blood flow reduces as vessel diameter shrinks due to an increase in resistance.
Therefore, the high total cross-sectional area capillaries blood flows more slowly.
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a
The flu occurs when someone is infected with a specific virus. You may know you're sick when you have a fever, a
body temperature above 98.6° F. Based on your understanding of the reading passage, how do you think a fever
would affect enzymes and chemical reactions in your body? Would it decrease, increase, or have no effect on
them? Explain your answer.
Include one paragraph in your answer.
Answers
Can climate changes be linked only to the greenhouse effect? Why or why not?
Answers
An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. ... The warming effect associated with carbon dioxide alone increased by 36 percent
What is the genotype of the man?.
Answers
the x chromosome is vital for every humans development and the y chromosome is normally male.
Therefore the male genotype is xy
Helpppoo please no filessss
Answers
Answer:
i can’t see the answer choices
Explanation:
A vaccine against HIV proteins made by a genetically-engineered vaccinia virus that has infected a eukaryotic cell line is a(n)
Answers
Which of the following molecules do NOT break down Proteins?
A. Pepsin
B. Protease
C. Protein kinase
D. Trypsin
Answers
Answer:A pepsin
Explanation:
Answer: Protein kinase is your anwser please mark brainliest thank yoou
Explanation:
True or false ?
The chemical reactions of cellular respiration are anabolic reactions.
O True
O False
PLEASE HURRY ITS DUE TOMORROW AT 10:00pm
Answers
relationship between enzymes and macromolecules
Answers
Answer:
Each macromolecule is broken down by a specific enzyme. For instance, carbohydrates are broken down by amylase, sucrase, lactase, or maltase. Proteins are broken down by the enzymes pepsin and peptidase, and by hydrochloric acid. ... Breakdown of these macromolecules provides energy for cellular activities.
Type the correct answer in the box, Use numerals instead of words.
The diagram shows the approximate amounts of carbon, in gigatons (Gt) per year, that move through the primary processes
of the carbon cycle. The numbers in yellow are due to natural processes, and the numbers in red are the result of human
actions. Based on this diagram, complete the statements.
Answers
Human activities release 9 gigatons of carbon into the atmosphere each year.
Human activities remove 5 gigatons of carbon from the atmosphere each year.
Humans’ net contribution of atmospheric carbon to the atmosphere is 4 gigatons each year.
9 gigatonnes of carbon are released into the atmosphere annually by human activity. Each year, 5 gigatonnes of carbon are removed from the atmosphere by human activity.
Thus, Each year, 4 gigatons of atmospheric carbon are added to the atmosphere as a result of human activity.
A fundamental mechanism that controls the movement of carbon dioxide and other carbon compounds between the atmosphere, oceans, soil, and living things on Earth is known as the carbon cycle. The concentration of carbon in various reservoirs is influenced by a variety of natural and human factors.
Plants and other photosynthetic creatures take up about 120 Gt of carbon each year from the atmosphere through the process of photosynthesis (yellow).
Thus, 9 gigatonnes of carbon are released into the atmosphere annually by human activity. Each year, 5 gigatonnes of carbon are removed from the atmosphere by human activity.
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define active transport in your own words
Answers
Answer: Define Active transport
Explanation: The moving of molecules or ions across the cell membrane.
Hope this helps!
How many carbon atoms does glucose have
Answers
Answer:
six carbon atoms
Explanation:
Glucose has an aldehyde group (-CHO) on carbon atom number one and is therefore called an “aldose,” also it has six carbon atoms (a hexose) so it can be called an “aldohexose.” The reactive group on fructose, however, is a ketone group (-C=0) on carbon number two.
Explain how various depressants affect nervous system activity and behavior (alcohol, barbiturates, and opiates)
Answers
Answer:
They kill you
Explanation:
They kill you
Why is apoptosis important to cells.
Answers
Plz help! 15 points
• Would a plant be able to survive if the ground tissue was damaged?
Answers
Answer: I don’t think so because it needs the carbohydrates produced by the plant.
Explanation: No because the soil would be contaminating the soil until it reaches a point where the soil begins to tear and cracks will open in the soil and the air will be polluted, it would be an uninhabitable planet
are sea snakes venemous?
Answers
Sea snakes are usually not aggressive unless provoked or cornered. Although they are highly venomous, only some bites result in significant symptoms of envenomation. The venom is injected by fangs.
what is the overall purpose of cellular respiration?
Answers
Answer:
The overall purpose is to break down sugar in the presence of oxygen to release in the form of ATP.
Explanation:
Cellular respiration is the process that occurs in the mitochondria of organisms (animals, and plants). this process releases carbon dioxide and water as waste products
what is the difference between volume measurements and capacities
Answers
Vocabulary Review and Reinforcement
In 1-13, study the diagram. Then fill in the blanks with the appropriate terms from
the chapter
1.
2.
3.
4.
5.
6.
7.
8.
9.
*I NEED ANSWERS ASAP*
Answers
The cell in the diagram is a plant cell because it has chloroplasts and a cell wall.
There are two types of cells animal cells, which are the ones that humans and animals have, and plant cells, which are the ones that plants and trees have. They share some organelles, but they also have some that are specific to each type.
The plant cell parts in the picture are:
Rough Endoplasmic Reticulum: it is where the ribosomes are. The synthesis of proteins happens there.Chloroplast: it is an organelle-specific of plant cells. They are in charge of photosynthesis.Cell wall: it is only present in plant cells. It surrounds the membrane.Mitochondria: It is the place that generates the energy that the cell needs.Vacuole: they are bigger in cell plants than in animal plants. It has many functions, but one is to store water.Membrane: it draws the limits of the cell.Golgi Apparatus: it is the place where proteins go to be distributed.Nucleus: it contains DNA, and it has a membrane around it.The nucleolus: is the larger part of the nucleus. It is in contact with the endoplasmic reticulum.To sum up, the plant cell has a bigger vacuole than the animal cell; it also has chloroplasts and a cell wall, which are not present in the animal cell.
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Carbon cycle pls help me
Answers
carbon dioxide Coronavirus
Newly hatched birds that lack down and are nest-bound, unable to feed on their own, as with baby wrens or robins, are Group of answer choices carinate. altricial. derived. ratites. precocial.
Answers
Newly hatched birds that lack down and are nest-bound, unable to feed on their own, as with baby wrens or robins, are ALTRICIAL. These species include hummingbirds, swallows, passerine birds, woodpeckers, etc.
In altricial species, young individuals are underdeveloped at birth, thereby needing the help of parents to mature and develop into adult individuals.
Conversely, precocial species are species in which young individuals are mature and mobile from the moment of birth.
Most domestic species of birds (i.e., ducks, turkeys, chickens, etc) have a precocial type of development.
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