What is the function of the raphe in diatoms?

a.
defense

b.
photosynthesis

c.
capturing food

d.
locomotion

Answers

Answer 1

Answer:

Locomotion

Explanation:

I am not sure but it will be helpful. Thank You !!!


Related Questions

Which fact supports the conclusion that goats are crucial to the international food supply?


Americans use milk from goats to make cheese.

Most of the world’s milk comes from goats.

The flavor of a goat’s milk varies by its breed.

Many Americans prefer cow meat to goat meat.

Answers

Answer:

blanks

Explanation:

Answer:most of the world’s milk comes from goats

Explanation:

Place these events in the correct order of occurrence in the muscle contraction: End plate potential triggers an action potential Transverse tubules convey action potentials into the interior of the muscle fiber Acetylcholine binds to receptors on the motor end plate Calcium is released from the sarcoplasmic reticulum Ligand-gated channels open leading to depolarization Calcium ions bind to troponin, which then moves tropomyosin

Answers

Answer:

1. Acetylcholine binds to receptors on the motor end plate

2. Ligand-gated channels open leading to depolarization

3. End plate potential triggers an action potential  

4. Transverse tubules convey action potentials into the interior of the muscle fiber

5. Calcium is released from the sarcoplasmic reticulum

6. Calcium ions bind to troponin, which then moves tropomyosin

Explanation:

Acetylcholine (ACh) is a signaling molecule (neurotransmitter) that binds to receptors on muscle cells. This binding triggers the opening of ligand-gated sodium channels, thereby ions enter into muscle cells, which causes the depolarization of the sarcolemma and thus promotes the release of Ca2+ ions from the sarcoplasmic reticulum. The myoneural junction, also known as the motor endplate, is the site of synaptic contact between a motor axon and a skeletal muscle fiber. The endplate potential is the voltage that produces the depolarization of muscle fibers when ACh molecules bind to their receptors in the cell membrane. This depolarization spreads in the sarcolemma through transverse tubules (T tubules​) and thus generates an action potential. Finally, this action potential induces the release of Ca2+ in the sarcoplasmic reticulum, which activates troponin protein and induces muscle contraction.


What is this tiny bird doing in this big guy's mouth? The plover bird is
picking the chunks of meat out of the crocodile's teeth. This helps the
crocodile's mouth stay healthy and be ready for its next big meal. What is
type of relationship is being described?

Answers

What are the options ?

Look at the following equation.
Na C02(s) + 2 HCl(aq) + 2 NaCl(aq) + CO2(g) + H2O(1)
What do the symbols in the equation mean?
(s) =
(aq) =
(g) =
(I) =​

Answers

S= solid (indicates that the substance is in a solid state), AQ=Water (indicates that the substance is dissolved in water - the aq comes from aqueous), G= Gas (indicates that the substance is in a gaseous state), L=liquid I hope this is right

The wings of butterflies and birds are ----------- structures because, although they are used for the same purpose (flight) they have very different structural compositions. Bird wings are made of bones and feathers while butterfly wings are made from chitin and are part of the insect’s exoskeleton.

Answers

Answer:

symetrical

Explanation:

what would be a great research topic? related to biology.​

Answers

Finding good research topics related to traditional biology subfields like animal and plant biology, ecology (current global problems warrant a number of hot topics), or topics related to humans: neurobiology (and determinants of human behavior), recent discoveries on diseases and the immune system, Animal health!

Visit the link below and use the information to answer the following question.

Ecological Succession: Transformation of Communities over Time

Why does secondary succession occur faster than primary succession?

Answers

Answer:

Because there is already presence of soil and nutrients in secondary succession

Explanation:

Ecological succession, which is the series of gradual change that occurs in a community over time, can be of two forms namely: primary succession and secondary succession.

- Primary succession is a kind of succession that occurs in a barren land where no form of life has existed before while secondary succession occurs on a land that has been previously colonized by certain organisms called PIONEER SPECIES, and hence, a substrate containing nutrients called SOIL for growth is available during secondary succession.

This accounts for the reason the secondary succession is faster than the primary succession because there is already presence of soil and nutrients in secondary succession.

Answer:

Soil with nutrients is already present.  Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.

Explanation:

Edge 2021

what observations can be made and what can be concluded from these observations​

Answers

Answer:

Correct option is A0 Based on the dispersion of white light into its constituent colours, we can conclude that (a) the white light consists of seven colours

Correct option isA0Based on the dispersion of white light into its constituent colours, we can conclude that (a) the white light consists of seven colours(b) the violet light suffers maximum deviation and the red light suffers minimum deviation.

Based on observations from dispersion, it can be concluded that white light is composed of seven colours of light.

What is dispersion of light?

Dispersion of light is the separation of white light onto its constituent color as it passes through a refraction prism.

White Light consists of seven colours of varying wavelength.

When light is passed through a refracting prisms, dues the difference in the speed of the different constituents of light, seven colours of light are produced.

Therefore, based on observations from dispersion, it can be concluded that white light is composed of seven colours of light.

Learn more about dispersion of light at: https://brainly.com/question/20259452

Please help me name each letter and match it to the definition.

Answers

Answer:

1. B. Medulla oblongata contains cardiac, respiratory, vasomotor and reflex centers.

2. A. Hypothalamus is the major regulator of ANS

3. D. Occipital lobe is the location of visual cortex.

4. F. Sensory areas are primary site responsible for perceiving cutaneous sensory sensations and proprioception.

5. E.Motor areas directs conscious motor movement

6. C. Cerebellum - coordinates movement by comparing intended movement with actual movement.

7. K. Corpus callosum allows communication between right & left cerebral hemispheres.

8. J. Frontal Lobe - Cognition, personality.

9. A. Hypothalamus - Contains hunger, thirst and thermoregulatory centers.

What is the speed of a runner who travels 20m in 10s?

Answers

Answer:

2m/s

Explanation:

speed =distance ÷time

PLEASE HELP ASAP ILL GIVE YOU BRAINLIEST AND MOST HELPFUL!! ​

Answers

Answer:

the second choice is really the only on that makes sense,

Explanation:

I'm not really sure that plants need rocks but it can't be the third answer choice because soil is made up of cells and microorganisms. Plants can photosynthesize but animals (the mocking jay) cannot. and for the last choice water and sunlight aren't any type of organism, they are abiotic.

CAN FISH SURVIVE ONLY IN WATER WITH DISSOLVED OXYGEN?

Answers

Answer:

Oxygen dissolves into water from two sources: the atmosphere and from plants in the water. kills fish from oxygen depletions can range from “partial” to “total”. In a partial kill the dissolved oxygen level gets low enough to suffocate sensitive species and large fish, but many small fish and hardy species survive.

Explanation:

I hope this helped you

A brown guinea pig mates with a white guinea pig. All of the babies have tan, or light brown fur. The hair color trait in guinea pigs is probably ____.

1. Sex linked
2. Recessive
3. Incomplete dominance
4. Codominant

Answers

Answer:

It would be sex linked.

Explanation:

As you know (if you do), when two animals mate, they combine their genes to make a baby. So of their skin colors are different like one is brown and one is white, then you get a baby that would look brownish white or have spots that are brown or white.

Attitudes are ________
a. innate
b. generally positive
c. learned
d. unchangeable

Answers

maybe c sorry if it’s wrong

After synapsis, chromosomes may swap segments in a process called translocation.
True
False

Answers

Answer:

false

Explanation:

During synapsis, chromatids of homologous chromosomes exchange segments in a process called crossing over. This rearranges genetic info. As this phase continues the chromosomes coil tightly and a spindle forms.

Creating a checklist of activities is not a helpful strategy for determining what to study for an upcoming test. Please select the best answer from the choices provided T F

Answers

Answer:

ture

Explanation:

Answer:

true

Explanation:

edge 2021

Explain why conflict avoidance does not help in sustaining positive relationship​

Answers

Answer:

Avoidance is not healthy for sustaining the positive relationships as the ignorance or avoidance can cause the damage between the relationships of the people. The maintenance of the relationship among people can be hampered by avoidance. It can make the other people feel neglected. That can cause a failed relationship.

Explanation:


Use the following list of organisms to create a food chain diagram.


•Hawk

•Toad

•Green plants

•Snake

Be sure to include the original source of energy for all living things in your diagram. Then, label each of the following: producer, primary consumer, secondary consumer, tertiary consumer.

Answers

Answer

green plants eaten by toad toad eaten by snake and snake eaten by hawk

green plants producer

toad primary consumer

snake secondary consumer

hawk tertiary consumer

Explanation:

Answer:

PRODUCER. > Green plants.

PRIMARY CONSUMER > Toad.

SECONDARY CONSUMER > Snake.

TERTIARY CONSUMER > Hawk.

g It was noted in the Experimental Pathways feature in Section 10.4 that at least two- thirds of the human genome is derived from transposable elements. The actual number could be much higher, but it is impossible to make a determination about the origin of many other sequences. Why do you suppose it is difficult to make assignments about the origin of many of the sequences in the human genome

Answers

Answer:

TEs are repetitive and mobile elements, thereby it is hard to trace their origins  

Explanation:

Repetitive elements are patterns of nucleotide sequences in the DNA characterized to have multiple copies throughout the genome. DNA mini-satellite and Transposable Elements (TEs) are some examples of highly repetitive DNA. TEs are repetitive mobile elements that have the ability to jump within the genome and occupy a major part of eukaryotic genomes. For instance, there is a type of TEs called retrotransposons which mobilize through a copy-and-paste mechanism, thus increasing their number in a genome. In consequence, TEs represent highly repetitive and dynamic genomic sequences, and thereby it is hard to trace their evolutionary histories.

???????????????,,,??,???? What is the answer to number 4 and 5

Answers

Answer:

Questions 4-snow and 5 is rain showers

In Drosophila, red eyes is wild-type and purple eyes are mutant. Full-size wings are wild-type and vestigial wings are mutant. Flies with wild-type pr pr vg vg genotypes were crossed with double mutant flies with a pr-pr- vg-vg- genotypes. The F1 flies had pr pr- vg vg- genotypes. The F1 flies with heterozygous genotypes were crossed with double mutant flies with a pr-pr- vg-vg- genotypes One thousand offspring were typed. This cross produced 430 red-eye, wild-type wing flies, 65 purple-eye wild-type wing flies, 60 red-eye, vestigial wing flies, and 445 purple-eye, vestigial wing flies. What is the distance between the loci for purple eyes and vestigial wings in centiMorgans (map units)

Answers

Answer:

Distance between genes 12.5 MU = 12.5 cM.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

A scientist at a nuclear power plant spills toxic chemicals on her hand. The chemical exposure results in a mutation to the DNA within her skin cells. which of the following is the most likely result of the mutation to the scientist’s skin cells?

A. The damaged DNA spreads to every cell in the body

B. The size of the scientist’s skin cells decreases

C. The scientist’s offspring inherit the mutation from the affected cells

D. The sequence of amino acids with the affected cells is altered

Answers

Answer:

Explanation:

the answer is c

Name the two main compounds that are exhaled (breathed out) by humans as a result of Aerobic Cellular Respiration

Answers

Answer:

carbon dioxide and oxygen

Explanation:

Carbon dioxide is the waste product of cellular respiration that you breathe out each time you breathe. Blood picks up oxygen and releases carbon dioxide in the lungs. The opposite takes place in the cells where the blood releases oxygen and picks up carbon dioxide.

POSSIBLE POINIS: 5
Which of the following is the best example of a population with the terrarium ecosystem?
A
the grains of sand in the bottom of the jar
B
the air and the screen at the top of the jar
С
the paper tube and the water containers
D
the three crickets in the jar



Answers

Answer:

A

Explanation:

What do you already know about the rotation and the revolution of the Earth?

Explain your Answer

Answers

Answer:

I already know that the earth rotates on its axis because of magnetic forces. I also know that the earth revolves around the sun because of the pull of the sun's gravity.

When cells break down food glucose molecules during cellular respiration, energy is

Answers

Answer:

when cells break down food molecules, some of the energy on the molecules is released as heat. Cells use much of the remaining energy to make ATP. When glucose is broken down during cellular respiration energy is stored temporarily in molecules of ATP.

Explanation:

I need help with this

Answers

Answer:

D

Explanation:

I graphed it

The radius is also 5 therefor it must =25

hello I am Iron-60 , the twin of Iron-56, how am different than my twin?

Answers

Iron-60 has 34 neutrons, that’s 4 extra neutrons that make the isotopes unstable to radioactive decay

Name three benefits of keeping plants at home.

Answers

Answer:

Studies have shown that indoor plants...

Boost your mood, productivity, concentration and creativity.

Reduce your stress, fatigue, sore throats and colds.

Help clean indoor air by absorbing toxins, increasing humidity & producing oxygen.

Add life to a sterile space, give privacy and reduce noise levels.

the amount of electrical energy that can be generated by a hydroelectric power plants depends upon

Answers

Answer:

The amount of electricity a hydropower plant produces depends on two factors: How Far the Water Falls. The farther the water falls, the more power it has. Generally, the distance that the water falls depends on the size of the dam.

Explanation:

The amount of electrical energy that can be generated by a hydroelectric power plant depends upon the following factors:

The actual flow rate of water. The height of the water that falls.

What is a Hydroelectric power plant?

A Hydroelectric power plant may be defined as a renewable source of energy that generates electricity through the utilization of water from dams or diversion structures. Such types of plants are mainly used to transform hydraulic potential energy into electrical energy from water.

The actual flow rate and height of the water from it is falling demonstrate the amount of generated electrical energy. If the amount of water is present in excess quantity with a huge rate of flow and more the height of water in the hydroelectric power plant, it reveals that the generated electricity must be high under such circumstances.

Therefore, the rate of flow and height of water overall reveals the amount of electrical energy that can be generated by a hydroelectric power plant.

To learn more about Hydroelectric power plants, refer to the link:

https://brainly.com/question/8934285

#SPJ6

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