Answer:
no they do not have hair, even tough it may look like they have hair its only pieces of skin.
Explanation:
Catfish do not have hair. They have barbels, which are long, thin feelers that are used to sense their surroundings. Hence option B is correct.
The barbels are covered in taste buds, which allow the catfish to taste the water and find food. Hair is made of keratin, which is a protein. Catfish do not have keratin in their skin, so they cannot grow hair.
However, some catfish species have barbels that are covered in small, hair-like projections. These projections are not actually hair, but they are similar in appearance.
Therefore, option B) No is correct.
To know more about Catfish:
https://brainly.com/question/14774645
#SPJ6
Why is it important for your brain to control many functions automatically?
Answer:
The brain controls what you think and feel, how you learn and remember, and the way you move and talk. But it also controls things you're less aware of — like the beating of your heart and the digestion of your food.
Think of the brain as a central computer that controls all the body's functions. The rest of the nervous system is like a network that relays messages back and forth from the brain to different parts of the body. It does this via the spinal cord, which runs from the brain down through the back. It contains threadlike nerves that branch out to every organ and body part.
Explanation:
If you brain does not, or is unable to perform multiple tasks automatically, you could have trouble breathing on your own, your heart could have problems, even your thought process, movement, and digestion could malfunction. Which could cause a multitude of complications.
Hope this helped, have a great day/night :}
When did the Paleozoic Era begin?
66 million years ago
400 million years ago
4 billion years ago
550 million years ago
The Paleozoic Era began approximately 550 million years ago and ended approximately 252 million years ago.
What is Paleozoic Era?The Paleozoic Era is a geological epoch that lasted about 541 million years and ended about 252 million years ago.
It is also known as the "Age of Invertebrates" because it witnessed the rise and dominance of numerous invertebrate groups, including trilobites, brachiopods, and ammonites.
From oldest to youngest, the Paleozoic Era is divided into six periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian.
Many significant events in the evolution of life on Earth occurred during this time period, including the Cambrian period's explosion of diversity, plant and animal colonization of land, and the emergence of reptiles and insects.
Thus, the answer is 550 million years ago.
For more details regarding Paleozoic Era, visit:
https://brainly.com/question/11614266
#SPJ7
is the transforming factor made of proteins?
Answer: Understand about transformation as part of this. ... Is protein the transforming factor? protein-destroying enzymes---made the strains grow so concluded that protein doesn't transform because the bacterial colonies were still transformed. He concluded that protein could not be the transforming factor.
Explanation:
To model ocean water in different places on Earth, a student pours equal amounts of water in two containers. He adds the same amount of salt to each container and stirs until the salt is completely dissolved. He places Container 1 in a cool place in the house and Container 2 outside in the sunlight. After two hours, he tests the salinity of water in each container. What should the student MOST LIKELY conclude, and why?
Answer:
The correct answer would be - container 2 will have less salinity than container 1.
Explanation:
The given experiment can give an idea about how the temperature of surroundings can affect the salinity, volume, and density of the water that has the same amount of water and salt dissolved in it. The independent variable or the only variable that is different is their place that has a difference in the temperature. Container 1 is placed in a cool place while container 2 is placed in sunlight.
We know that the warmer the water it takes more space so, therefore, less density. Density and salinity both have a positive relationship so an increase in density increases the salinity and vice versa. Thus, here the salinity of container 2 would be low in comparison to container 1
why animals need a circluatory system
Answer:
All cells in the body need to have oxygen and nutrients, and they need their wastes removed. These are the main roles of the circulatory system. The heart, blood and blood vessels work together to service the cells of the body.
Explanation:
Who invented the microscope and was the first person to describe cells?
Who was the first scientist to refer to cells in cork tissues?
Answer:
The cell was first discovered by Robert Hooke in 1665 using a microscope.
The first cell theory is credited to the work of Theodor Schwann and Matthias Jakob Schleiden in the 1830s.
Hooke had discovered plant cells -- more precisely, what Hooke saw were the cell walls in cork tissue. In fact, it was Hooke who coined the term "cells": the boxlike cells of cork reminded him of the cells of a monastery.
Answer:
1. Zacharias Janssen invented the microscope, while the first to describe cells was Robert Hooke
2. Robert Hooke was the first scientist to do so
Which of the following is a protist?
a a mushroom
b a ladybug
C a palm tree
d None of these are protists.
Answer:
C.a palm tree
Sana makatulong
Carry
Most people develop wisdom teeth by early adulthood. Wisdom teeth can cause pain or crowd out their other teeth, so many people have these teeth removed. Wisdom teeth in modern humans do not perform a crucial life function.
Which statement best describes the importance of wisdom teeth to human evolution?
A. They are vestigial structures that once performed an important function for human ancestors.
B.They are evidence that humans have never evolved.
C. They are vestigial structures that never performed a necessary function for human
ancestors.
D.They are evidence that humans cannot evolve.
Answer:
A
Explanation:
There's a reason they grew there in the first place. The Caveman mouth was much larger than our modern mouths.
The statement that best describes the importance of wisdom teeth to human evolution is that they are vestigial structures that performs function for human ancestors.
What do you mean by Evolution?Evolution may be defined as the change in the characteristics of a species over several generations and relies on the process of natural selection.
Wisdom teeth are evolved in humans because early humans needed to chew coarse, hearty foods, they required a broader jaw. Wisdom teeth grew in to give them more chewing power for this purpose.
Therefore, the statement that best describes the importance of wisdom teeth to human evolution is that they are vestigial structures that performs function for human ancestors.
To learn more about Wisdom teeth, refer to the link:
https://brainly.com/question/1515406
What is the difference between a haploid, diploid, and zygote?
Answer:
[tex]\color{Blue}\huge\boxed{Answer} [/tex]
Haploid" refers to any cell that has 23 chromosomes (half of the total 46). "Gametes" are specifically sex cells that have 23 chromosomes. "Diploid" refers to any cell that has all 46 chromosomes. "Zygote" is the result of two gamete (haploid) cells fusing, and becoming a diploid cell.
Haploid means n, Diploid means 2n, while zygote is the fusion of two gametes that possess a nature of 2n.
What do you mean by Gametes?A Gamete may be defined as a cell containing only one set of dissimilar chromosomes, or half the genetic material necessary to form a complete organism.
Haploid is the quality of a cell or organism having a single set of chromosomes. A Diploid is a cell or organism that has paired chromosomes, one from each parent. In the case of humans, the haploid number is equal to 23, while the diploid number is equal to 46. A zygote is the fusion of two gametes that possess a nature of 2n, which is equal to 46.
Therefore, Haploid means n, Diploid means 2n, while zygote is the fusion of two gametes that possess a nature of 2n.
To learn more about Haploid and diploid, refer to the link;
https://brainly.com/question/12383127
The process of photosynthesis only impacts plants and their ability to survive.
Group of answer choices
True
False
True
Explanation:
true because photo synthesis helps only to survive because they can prepare food only in persence of chlorophyll
A chromosomal alteration in which one or more
pairs of homologous chromosomes fail to separate
normally during meiotic cell division is known as... 1.)an addition
2,) crossing over
3.) nondisjunction
4.) translocation
If a DNA strand has the following sequence, what is the sequence of the complementary strand?
ACCTAGTCG
Answer: TGGATCAGC
Explanation:
Neural crest cells appear on the edges of the neural tube and spread throughout the embryo, giving rise to all of the following structures except __________. Neural crest cells appear on the edges of the neural tube and spread throughout the embryo, giving rise to all of the following structures except __________. pharyngeal slits (or clefts) of invertebrate chordates some of the bones and cartilage of the skull sensory capsules in which eyes and other sense organs develop. teeth
Answer:
The correct answer is ''pharyngeal slits (or clefts) of invertebrate chordates.''
Explanation:
The neural crest is a temporary structure that develops as the neural tube closes. Its migratory capacity and subsequent distribution during development is a basic point in the general embryonic development and of most organs and structures in particular.These cells contribute to the formation of head cartilage and tooth dentin in fish embryos; and a large number of tissues and structures are formed from the migration of neural crest cells. Invertebrate chordates are animals of the Chordata phylum that have a notochord at some point in their development, but do not have a backbone. With a hollow nerve cord, neural tube. It appears by invagination of the dorsal surface; the tube is formed with a central cavity lined by ependyma; the anterior part of the neural tube gives rise to the brain. The neurenteric canal is a communication channel between the neural tube cavity and the intestine. The pharyngeal clefts (pharyngotremia), originally used for food; It is a filtering device that retains food particles that are included in mucus and transported to the intestine. In fish it already acquires respiratory function. In the ventral part, a groove is formed with cilia and bands of glands: endostyle or hypobranchial groove.
All of the following traits is inherited by an eagle EXCEPT-
brown wings
cracked beak
sharp talons
feathered tail
Answer: cracked beak
Explanation:
Which of the following two elements are most likely to form an ionic bond.
H and s
Mg and O
C and O
H and Cl
Answer:
the answer would be magnesium and oxygen
Explanation:
hope this help
Answer:
thw answer is magnesium and oxygen
A(n)\ is an area of the planet that shaves similar conditions of climate, fauna (animal life), flora (plant life) and geography .
1.biome
2.environment
3.habitat
4.ecosystem
[tex] \bold{biome }[/tex]
⭐----------------------------------------------------------------------------------------------✄ ----------------------------------------------------------------------------------⭐
BRAINLYMENTALMENTE
i don’t get how to do this part lol i’m slow
FIRST TO ANSWER GETS 25 POINTS AND BRAINLYEST A. Describe how electricity is generated in a coal power plant.
B. Provide one example of a RENEWABLE ENERGY SOURCE that creates electricity
in a "similar" way.
Answer:
A. By burning coal in a boiler to produce steam. The steam produced, under pressure, flows in a turbine, which spins a generator to create electricity
B. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity
I need help please I wanna pass this class
Answer:
Explanation:
Answer: I mean the instructions are pretty clear and you still ask for help?
How do signals move through the nervous system?
Answer:
Nervous system messages travel through neurons as electrical signals.
Explanation:
When these signals reach the end of a neuron, they stimulate the release of chemicals called neurotransmitters. Neurotransmitters travel across synapses, spaces between neurons or between neurons and other body tissues and cells.
Hope This Helpsx
The population of America is ethnically heterogeneous. What does this mean?
Answer:
it means that there are allot of people with allot of diffrent ethnicities
Which of the following are the results of a population reaching the carrying capacity of the environment in which it lives? (Choose
all that apply) WARNING I will report if there are any links to the answer!!
A)The birth and death rates will balance each other out for a net growth rate of zero.
B)The population will no longer grow in size.
C)Death rate will increase, and birth rate will decrease until they balance each other out.
D)Birth rate will increase, and death rate will decrease until they balance each other out.
Answer:
✦ The birth and death rates will balance each other out for a net growth rate of zero.
✦ Death rate will increase, and birth rate will decrease until they balance each other out.
✦ The population will no longer grow in size.
Explanation:
Due to practical limitations of food, water, and space, a given environment has a maximum population size it can support.
ubicación corporal del gusto
Answer:
La sensación de sabor se percibe utilizando dos sentidos corporales simultáneamente: el gusto, detectado en la boca, principalmente en la lengua, y el olfato, radicado en las fosas nasales, en donde se detecta el aroma
1. What causes the tectonic plates to move?
2. How did the creator of this video explain why
some plates are moving faster than others?
3. What are the 3 main types of plate boundaries?
Answer: 1. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift. 2. But scientists were at a loss to explain why some pieces of crust move much faster than others. A new study suggests these tectonic plates control their own speed more than the mantle does. ... The velocities of these plates and the velocities of the boundaries between these plates vary significantly on Earth." 3. Divergent boundaries -- where new crust is generated as the plates pull away from each other.
Convergent boundaries -- where crust is destroyed as one plate dives under another.
Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other.
Explanation:
2.) State the relationship between photosynthesis and cellular respiration.
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Explanation:
what would happen to the ecosystem in the terrarium if it were a closed system for energy
Answer:
It would mimic the behavior of the earth's atmospheric atmosphere where you have a water cycle and sunlight which aids photosynthesis.
Explanation:
A terrarium is a glass container that can be covered and opened at will. It can be used to grow a plants using soil.
When it is sealed, water evaporates onto the body of the glass and runs down the sides of the glass only to be evaporated again and the same process happens over and over again.
Because the plants are in a glass container, they can still access sunlight for photosynthesis.
Sometimes the glass is opened up for maintenance. Maintenance here refers to the removal of algae that sometimes forms on the inner walls of the terrarium. Sometimes, there is also need to add water to the ecosystem in the terrarium given that the water inside usually escapes via evaporation over time.
Cheers
Answer: everything in it would die
Explanation:
Why is sexual reproduction associated with meiosis? meiosis reproduces identical DNA meiosis is the complete process of sexual reproduction meiosis helps to generate variability meiosis produces gametes
Answer:
meiosis produced gametes
Explanation:
During sexual reproduction, meiosis generates genetic variation in offspring because the process randomly shuffles genes across chromosomes and then randomly separates half of those chromosomes into each gamete. The two gametes then randomly fuse to form a new organism.
Hope it right
A geothermal power plant is like a regular power plant except that no fuel
is burned to heat 3. _____________ into 4.______________. The steam in a geothermal
power plant is heated by the Earth. Like other power plants, they use many of the same
components including 5. ____________________, 6. ____________________ and other
standard power operating equipment.
Answer: 3. Water 4 steam. 5. Turbine 6. Generator
Explanation:
How does the aorta compare in size to the other blood vessels near it?
Answer: Its wider and thicker than most blood vessels
Answer: The aorta is the largest blood vessel in the body. This artery is responsible for transporting oxygen rich blood from your heart to the rest of your body. The aorta begins at the left ventricle of the heart, extending upward into the chest to form an arch.
Blood vessels are the channels or conduits through which blood is distributed to body tissues. The vessels make up two closed systems of tubes that begin and end at the heart. One system, the pulmonary vessels, transports blood from the right ventricle to the lungs and back to the left atrium.
Explanation:
what is meanustration pariod
Answer:
menstration period is when a woman's body releases tissue it no longer needs so then the girl bleeds (usually for 7 days) and then every month or so (different for all girls) the uterus lining gets thicker to prepare for a fertilized egg if the woman becomes pregnant. :)