How does breathing take place in primitive animals ?​

Answers

Answer 1

Through Plasma Membrane


Related Questions

I wasn’t here for this help please!! 22-26!

Answers

Answer:

22: B

23: B

24: B

25: A

26: A

Good luck!      

Answer:

bbbaa

Explanation:

22.b

23.b

24.b

25.a

26.a

in the article, which technologies have been developed to enhance space exploration? choose all that apply

Answers

Answer:

Hahahah

Explanation:

list the function done by living organisms

Answers

Answer:

Respiration,Growth,Nutrition ,Reproduction and Excretion

Explanation:

hybrid zones provide an opportunity to investigate _____.

Answers

Answer:

Hybrid zones are geographical areas where two interbreeding groups of genetically unique organisms meet. Hybrid zones provide an opportunity to investigate Reproductive isolation and Speciation.

Explanation:

which type of fossils are used to identify specific time periods?

Answers

Answer:

Index fossils help to identify specific time periods. They are made from organisms that were distinctive, widespread, and lived briefly. Index fossils help to identify specific time periods. They are made from organisms that were distinctive, widespread, and lived briefly.

Explanation: hope this helps :)

Answer:

index file

hope this helps

:)

Explanation:

Explain your observations. What did you observe? Submit your data chart here.

Answers

What observations are you talking about

True/False: Blood entering the heart from the lungs is oxygen-poor blood.

Answers

Answer:true

Explanation:

Because we already used the oxygen from the blood to breathe (i think)

Mental excess could produce, for its own purposes, the
voluntary blindness and deafness of deliberate solitude, the
artificial impotence of asceticism.


In this sentence, voluntary means:
A. dangerous
B. mournful
C. timely
D. willful

Answers

The answer is gonna be C i believe

Why are there so many earthquakes in califonia?​

Answers

Answer:

The earthquakes of California are caused by the movement of huge blocks of the earth's crust- the Pacific and North American plates. Over time, these faults produce about half of the significant earthquakes of our region, as well as many minor earthquakes.

Answer:

The level of seismic activity is due to North Carolina's present upon a passive not active continental margin unlike West Coast regions which experiment frequent earthquakes along known and active Falls owns all of the known facts Exposed on the surface North Carolina are ancient and Interactive.

What does costal cartilage connect?

Answers

Answer:

a. Ribs to the sternum

Explanation:

Answer:

Ribs to the sternum

Explanation:

How would a cell make a protein that would go into the cell membrane?

Answers

Explanation:

Many proteins can move within the plasma membrane through a process called membrane diffusion.

This concept of membrane-bound proteins that can travel within the membrane is called the fluid-mosaic model of the cell membrane.

In which example do the cardiovascular and respiratory systems work together?



taking carbon dioxide from cells and removing it from the body


thinking about a song and then singing it to a large crowd of people


breaking down food and bringing it to different cells in the body


drinking a lot of water and then removing extra water from the body

Answers

○A)taking carbon dioxide from cells and removing it from the body

Hope this helped you- have a good day bro cya)

what is the main function of the reticular activating system?

Answers

The reticular activating system's main function is regulating arousal and sleep−wake transitions

The reticular activating system's main function is regulating transition between arousal and sleep−wakeness.

what is reticular activating system?

The reticular activating system (RAS) is a bundle of nerves located in the brain and  it is responsible for regulating wakefulness and sleep-wake transitions.

 It  is also involve in filtration of noise with processing of messages or make it slower during  sleep, it alters the  brain's electrical activity,  electrical voltage of brain waves and the speed.

The primary function of RAS is higher at brain centres when important messages are received and filter the important messages, for example The eye sends messages to the brain through the optic nerve.

If the RAS system is damaged, it can cause sleep problems, lethargy, or coma, also play a role in narcolepsy and degenerative brain disorders like Parkinson's disease and supranuclear palsy

For more details regarding reticular activating system, visit

https://brainly.com/question/10303563

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action potentials are conducted from the baroreceptors to the brain via which nerve?

Answers

Answer:

Action potentials are conducted from the baroreceptors to the brain via... the vagus nerve.

Explanation:

Hope this helps.

The process of differentiation is(1 point)

a process by which cells die.


a process by which cells repair themselves.


a process by which cells become specialized.


a process by which cells divide.

Answers

Answer:

C

Explanation:

I'm pretty sure I'm late but It's C. a process by which cells become specialized.

The process of differentiation is the process by which cells become specialized.

CELL DIFFERENTIATION:

Cell differentiation is the process by which an unspecialized cell becomes specialized in function.

Cell differentiation is undergone by stem cells, which are regarded as totipotent cells. The process of cell differentiation occurs as a result gene expression.

Cells like heart cells, blood cells, liver cells, kidney cells etc. are examples of specialized cells.

Therefore, the process of differentiation is the process by which cells become specialized.

Learn more at: https://brainly.com/question/20285092?referrer=searchResults

if a cell has 24 chromosomes, how many chromosomes would each of its four daughter cells have after meiosis?

Answers

Answer:

Because there are two rounds of division without duplication in between, the genetic content is cut in half. Each of the 4 daughter cells will only end up with half of the genetic content of the parent cell. Therefore, after meiosis, the daughter cells would have only 12 chromosomes each.

what are four examples of nutrients cycled in a biogeochemical cycle

Answers

Answer:

The Gaseous cycles include those of nitrogen, oxygen, carbon, and water; while the sedimentary cycles include those of iron, calcium, phosphorus, sulfur, and other more-earthbound elements.

Explanation:

Major examples are carbon, phosphorus, nitrogen, and oxygen in nutrient cycles in the biogeochemical cycle.

What are important nutrients in the biogeochemical cycle?

Most of the elements are important to flow in the ecosystem to obtain living things and their surrounding environment in a balanced state.

This cyclic flow provides energy at every level in the ecosystem, carbon is an important substance synthesis during the photosynthesis process and this plays role in energy molecule flow in a particular direction.

In the biogeochemical cycle carbon cycle, oxygen cycle, nitrogen, and phosphorus cycle flow between the living organism and nonliving matter.

Therefore nitrogen, phosphorus, oxygen, and carbon are major nutrients in a biogeochemical cycle.

Learn more about the biogeochemical cycle, here:

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The lens of the eye is held in place by the ___

Answers

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 do invasive species do when in a new area?
Breed with existing species

Get in balance with the existing food chains

"Take over" the area and become more successful than the native species

Die because they cannot survive

Answers

Answer:

"Take over" the area and become more successful than the native species

Explanation:

Invasive species are species that are introduced to a habitat they are not native to. They are environmentally problematic becasue they disrupt native ecosystems in which they are able to thrive. They do not usually breed with existing species, they can disrupt existing food chains, and they wouldn't be invasive if they died out.

1 point
8. In the above food web described, crab, clams, mussels, sea snails and
urchins are
Mussel
Sea snail
Clam
Urchin
Crab



Primary Consumer (Herbivore)
Secondary Consumer (Carnivore)
Producer

Answers

Answer:

they are all primary consumers

Explanation:

a green plant which makes food using light energy water and carbon dioxide during the process of photosynthesis​

Answers

Answer:

Explanation:

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.

Answer:

Autotrophs!

Explanation:

Autotrophs are plants that have chlorophyll, which is a green pigment found in plants. These plants do all the things in your question!

the area where the optic nerve leaves the retina is referred to as the

Answers

Answer:

The optic disc

Explanation:

At the optic disc, the optic nerve fibers exit the eye through fenestrations within the sclera (lamina cribrosa).

the nurse is assessing a patient who is diagnosed with respiratory acidosis. which cardiovascular finding does the nurse anticipate when assessing the cardiovascular system?

Answers

If the nurse is assessing a patient who is diagnosed with respiratory acidosis. the cardiovascular finding that the nurse should  anticipate when assessing the cardiovascular system are:

TachycardiaDysrhythmia

Respiratory acidosis is a condition where a person body cannot exhale the carbon dioxide or C02 inhale resulting in the accumulation or build up of carbon dioxide in their body.

When the nurse is carrying out assessment on the patient  cardiovascular system the nurse should check out for  Tachycardia  and Dysrhythmia so as to detect any form of abnormalities.

Tachycardia occur when the heart beat too fast than normal and Dysrhythmia as well occur when the heart beat is irregular.

Inconclusion if the nurse is assessing a patient who is diagnosed with respiratory acidosis. the cardiovascular finding that the nurse should  anticipate when assessing the cardiovascular system are:

TachycardiaDysrhythmia

Learn more here:

https://brainly.com/question/5575286

Which of the following accurately describes facilitated diffusion

Answers

Answer:

Xarwdef

Explanation:

what hormones are responsible for inducing and regulating labor

Answers

there is one hormone that is responsible for inducing and regulating labor which is Oxytocin

A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision? A. size of the cells of the organism B. what the organism eats C. how many types of cells are in the organism D. how fast the organism grows

Answers

Answer:

how many types if cell are in the organism

OI 1. Trình bày khái niệm và mục đích của việc nhân giống thuần chủng. Là mục đích của việc lại giống.​

Answers

answer:

what is that mean??

20. Which element would be found in Period 5, Group 6?
А. Та
B. Mo
C. W
D. Nb

Answers

Answer:

A.

hope it helps

im from philippines.

what effort is made in nepal for the conservation of wildlife?

Answers

Nepal has made use of some limited hunting in hunting reserves to help fund their wildlife conservation efforts. No endangered species are allowed to be hunted.

▪▪▪Cutest Ghost▪▪▪

Explanation:

Nepal has made use of some limited hunting in hunting reserves to help fund their wildlife conservation efforts. No endangered species are allowed to be hunted

the process of breaking glycogen down to glucose is an example of

Answers

Answer:

catabolism

Explanation:

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