Answer:
TRUE
Explanation:
The nervous system only exists in animals. Neurons are the nerve cells that compose the nervous system.
The neuron´s principal function is to catch stimuli from the exterior convert them into nerve impulses that get transported to the control centers. These control centers interpret the signal and send an answer to the stimuli.
The control centers in invertebrates are ganglia, while the vertebrate´s control centers are the spinal medulla and the encephalon.
The signal transport occurs from cell to cell in inferior animals and through nerves in superior animals.
There is a progressive increase in the complexity of the nervous system. It evolved from primitive animals to the most superior ones. This evolution is especially noticeable in the development of the encephalon as the control center.
However, the basic nerve cell is very similar in all animals.
. ___________________ is the process of plants releasing oxygen into the environment?
Answer:
photosynthesis
Explanation:
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Linnaeus used the _____ language in his two-word naming system.
28. Eubacteria can be distinguished from archaebacteria by
a.The presence of a true nucleus
b. Being multicellular
Difference in the makeup of cell wall
d. The presence of organelles
Answer: D
Explanation:
i am sorry if this is wrong
people who take antibiotics are always told to complete the treatment rather than stop taking the medication when they feel better suggest two reasons why people are given this advice
Answer:
- Helps ensure that all of the illness-causing bacteria are killed or prevented from multiplying
- Helps prevent superbugs (bacteria that are immune to the antibiotic)
Answer:
it is to kill all the bacteria completely
and
to make sure that the person is completely healed because if the stop the treatment after a while the illness may come back with full force and this time to kill
Which of the following is an example of a benefit of a flooded river?
A. Burial and uprooting of plants
B. Removal of leaves from tall trees
C. Deposition of nutrients in the surrounding soil
D. Decreased formation of habitats for organisms
Drag each label to the correct location on the chart.
Sort the actions and terms based on the type of pollution they directly cause.
True or false--
All the modern species of bison have evolved overtime just as all living organisms evolve over time.
Answer:
The working assumption for many years was that, like North American bison, European bison evolved from steppe bison. ... Their results suggest that the European bison is the result of inter-breeding, over 120,000 years ago, between steppe bison and aurochs; the wild ancestors of modern domestic cattle.
Our study suggests that the first bison arrived in North America 195 - 135 thousand years ago over a land bridge between Asia and Alaska. They quickly spread and evolved (changed) into different forms to adapt to their new environments.
*insert JIMIN'S ROCK BISON pic here*
Explanation:
I.d.k what answer ur expecting from this sentence army.
so I just gave more info regarding this..lol.
plzzzz help
Commensalism is a symbiotic relationship in which one organism benefits and the other organism neither benefits nor is harmed.
Mutualism is a symbiotic relationship in which both organisms benefit.
Parasitism is a symbiotic relationship in which one organism benefits and the other organism is harmed.
Predation is a relationship in which one organism preys on (and eats) another organism.
Competition is relationship in which two organisms must fight (directly or indirectly) for resource
Objective:
Given a description of the relationship between two organisms, determine if their relationship is competition, commensalism, predation, mutualism, or parasitism.
1. Polar Bear and Seal: A polar bear hunts and captures the seal for its food. _______________________________
2. Lice and Humans: Lice attach to human hair and enjoy the warmth given off by the human. They eat tiny amounts of human blood, causing the human to have little red bumps that are quite itchy. They may also transmit disease to the human. _______________________________
3. Male lions: Adult male lions will fight each other for control over a pride and mating rights. _______________________________
4. Goby Fish and Sea Urchins: The goby fish live amongst the sea urchins and are provided protection from their predators. _______________________________
5. Wolf and Caribou: The wolf hunts and kills the caribou for its food. _______________________________
6. Bats and White-Nose Fungus: The fungus grows over the bat’s face during hibernation which can kill the bat or cause it to wake up from hibernation early and starve. ____________________________________
7. Hermit Crabs and Snails: Hermit crabs live in abandoned shells made by snails. _______________________________
8. Boxer Crab and Anemone: The boxer crab carries a pair of small anemones in its claws. When a predator approaches, it waves the anemones around which present its stinging tentacles and deters the predator. The anemones get small particles of food from the crab when it eats. _______________________________
9. Bear and Salmon: The bear catches salmon in the river and eats it for food. _______________________________
10. Grass and Oak Trees: Oak trees grow tall and put their branches out wide to collect sunlight. This shades the grass growing underneath from getting sunlight. _______________________________
11. Mycorrhizal Fungi and Plants: The mycorrhizal fungus grows into the roots of some plants and gets nutrients from the plant. The fungus helps the plant absorb inorganic nitrogen and phosphorus from the soil. Some fungi also secrete antibiotics, which can help protect the plant from parasitic fungi and bacteria. _______________________________
12. Bison and Cowbird: As bison walk through the grass, it kicks up insects like grasshoppers. These are seen and eaten by the cowbird. _______________________________
13. Mistletoe and Oak Tree: Mistletoe extracts water and nutrients from the oak tree, causing harm to the oak tree. _______________________________
14. Frog and Insect: The frog uses its long, sticky tongue to catch insects for food. _______________________________
15. Tapeworm and Dog: The tapeworm enters the dog when the dog eats feces containing tapeworm larvae. The tapeworm attaches to the dog’s stomach and feeds off of the dog’s nutrients. This often causes harm to the dog. _______________________________
Answer:
1. predation
2. parasitism
3. competition
4. commensalism
5. predation
6. parasitism
7. commensalsim
8. mutualism
9. predation
10. mutualism
11. mutualism
12. mutualism
13. parasitism
14. predation
15. parasitism
hope I helped!:)
Answer:
Oi felix~~
Explanation:
According to catastrophists what was the rate of geological change?
Describe an adaptation to a plant's life cycle and explain how this adaptation helps the plant survive. Source StylesNormal
Answer:
The adaptation of a plant in an environment ( for example,desert) depends on the structural parts of the plant which enables it to complete it's life cycle.
Explanation:
Plants are found in different types of environment. They need to possess and show some features that will enable them to live successfully and reproduce in that particular environment. Such features may be structural, functional or behavioural which are known as ADAPTATIONS.
Furthermore, in environment where there is scarcity of water supply, plants known as xerophytes can survive or thrive. They show the following adaptations:
--> well developed roots: the roots grow down to great depths if necessary and branch extensively in order to absorb water from as large an area as possible.
--> presence of swollen stems: These stems contains water storage cells which are called succulents. They help the plant withstand long period of drought.
--> Reduced leaves: This helps in reducing water loss from leaves through transpiration. For example in plants like the cacti, the leaves are reduced to spines.
Therefore, these structures helps the plant survive in its present environment.
The average number of individuals of the same species per unit of area or volume at a given time is the
population's
O carrying capacity,
O birth rate.
O size.
Odensity.
O distribution.
Next >
A) If a female spinach plant with green (GG) leaves is crossed (pollination and fertilization occur) with a male spinach plant with purple (gg) leaves. What are the genotypes of the offspring and what traits will they express including the probability or ratio.
Answer:
The genotype Ratio is 1. All are Gg.
The phenotype is all Green spinach
Explanation:
Punnett Square:
G G
_________________
g | Gg | Gg |
|________|________ |
g | Gg | Gg |
|________|________ |
The genotype Ratio is 1. All are Gg.
The phenotype is all Green spinach
How dose natural selection affect population by?
Answer:
individuals that develop beneficial traits have a better chance of survival, and are then able to pass on their genes. Eventually, if enough of those genes are passed on, that gene will become more prominent within the population.
(No links)
Which is NOT a characteristic of unsaturated fats?
A. liquid at room temperature
B. animal fats
C. kinks in the carbon chain
D. not fully saturated with hydrogens
Answer:
C
Explanation:
Organelles are found in...
A. the blood stream of complex organisms.
B. inside most cells.
C. constantly moving between cells.
Answer:it’s C
Explanation:
Regulation of heart rate is most closely associated
with the
A) cerebrum
B) cerebellum
C) somatic nervous system
D) autonomic nervous system
Answer:
D.autonomic nervous system
You find a fossil in your backyard. 12% of the Carbon 14 isotope is remaining. How old is the fossil?
Answer:
16,250 years (plus or minus (±) 10 years)
Whoever gets it right i will mark brainest
Answer:
For Desssert: C
For Taiga: A
For Tropical Rainforest: B
Explanation: Because desserts are very hot, we know that there aren't much plants due to the lack of rain/water, they're dry. Rainforests have lots of plants, so it's not B, and since the dessert is high temperature, A is obviously off the list.
Taiga is cold so it won't be good for soil and the plants won't grow as good as the wet rainforest so we can pick A. Then B for #2
.What is the difference between refraction, dispersion, and reflection
Answer:
Explanation:
Reflection takes place when the light does not pass into the material, but is instead "bounced" off the surface. Refraction occurs when the light passes into the material. ... Dispersion occurs when different wavelengths of light are refracted different amounts, separating the light into its constituent colors
What elements makes up a glucose molecule?
Answer:
Carbon, Hydrogen, Oxygen
Explanation:
name two tissues which are thickened with lignin
Answer: parenchyma (living thin-walled tissue) and collenchyma
Explanation:
3. Compare and contrast the movement produced by each of the three types
Answer:
strike-slip is when the blocks have mostly moved horizontally, normal is when a dip-slip fault in which the block above the fault has moved downward relative to the block below, and thrust is when the hanging wall moves up relative to the footwall.
There are three faults. Normal faults originate from the divergent boundary. Reverse faults originate from the convergent boundary. Strike-slip fault originate from transforming boundary.
What are the three types of fault?We can differenciate three types of faults,
Normal fault ⇒ originate from divergent movementReverse fault ⇒ originate from convergent movementStricke-slip fault ⇒ originate from transforming movementWhat are the boundary types?I. Divergent:
This boundary occurs when two plates separate and molten material rises from the mantle creating a new crust.
The hot material creates a new seabed between the separating plates, expanding the sea bottom.
II. Convergent.
Collision area between two plates. Two oceanic plates might collide, or one oceanic plate with a continental one.
In this last case, the oceanic crust sinks under the continental plate, and magma rises to the surface by crevices.
The thicker and older plate subduces under the other plate.
III. Transforming.
The plates slide laterally with each other, and they are usually called faults.
It is associated, in general, with the oceanic ridge, although it might also occur in the continental plate.
No rocky material is either destroyed or formed.
When the plates move and produce a displacement of one transforming limits from side to side, earthquakes occur.
The movement breaks the crust and originates pronounced fractures.
You can learn mor about the movement produced by the three types of faults at
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Innate immunity and acquired immunity are both _____. See Concept 43.1 (Page 953) View Available Hint(s) Innate immunity and acquired immunity are both _____. See Concept 43.1 (Page 953) dependent on surface secretions from sebaceous and sweat glands, which give the skin an acidic pH that is unfavorable for bacterial colonization based on the trapping of microbes by mucus dependent exclusively on cell-mediated responses characteristics of all vertebrate animals dependent on tears, saliva, and mucous secretions that contain lysozyme, an enzyme that digests bacterial cell walls
Answer:
The correct answer is - characteristics of all vertebrate animals.
Explanation:
Innate immunity is the first line of the immune system that comes with birth whereas adaptive or acquired immunity is the immunity that comes throughout life by experiencing or developing the immune system. Adaptive or acquired immunity is the immune response that comes through cell-mediated responses whereas innate immunity is the immune response that includes sweat glands and secretion from the skin. innate immune responses also include digesting and killing bacteria by the saliva, enzymes, lysozymes.
The only characteristic among these that present in both is that they both immune systems found in all vertebrates.
What do you think of when you hear the word "energy?"
I
(Pls somebody answer)
ever since i learned that your brain can see your nose but ignores it i cant stop seeing my nose and its getting annoying pls help
Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles. A scheme of blood circulation of reptiles except for birds. The reptiles have a three-chambered heart that consists of two atria and one ventricle with an incomplete septum. There are two circuits: pulmonary and systemic. In the pulmonary circuit, the blood from the right ventricle is pumped in to lung capillaries and returned to the left atria. In the systemic circuit, the blood is pumped from the left ventricle to the systemic capillaries via the left systemic aorta and is then returned to the right atria. There is also one vessel going from the right ventricle to the aorta right before it branches to smaller arteries. This vessel carries mixed blood. All blood on the right side of the circuits is venous and all blood on the left side is arterial. Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles. The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart. The three-chambered heart is inferior to the four-chambered hearts of birds and mammals, limiting the evolutionary success of amphibians and nonbird reptiles. Pulmonary and systemic blood fully mixes in the ventricle of a three-chambered heart.
Answer:
The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.
Explanation:
In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
All amphibians and reptiles except for crocodiles (having four-chambered heart) have three-chambered hearts, which typically comprises of a partially divided ventricle and two atria.
Hence, the correct statement about the three-chambered hearts of amphibians and nonbird reptiles is that, the three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart due to the partially divided ventricle.
What are the 3C’s that plant cells have, but animal cells lack?
Answer:
Cell wall, Chloroplasts, Central vacuole
Explanation:
Answer: cell wall, chloroplast, central vacuole,
Explanation:
The diagram shows part of an aquatic food web
for a stable lake ecosystem in Connecticut.
Turtles
Large fish
Small fish
Aquatic insects
Tadpoles
Water fleas
Rotifers
Algae
What is the source of energy for the algae?
A waves
B. sunlight
C. bacteria
D. rotifers, water fleas and tadpoles
Answer:
Sunlight
Explanation:
I just got it wrong because of the wacko below or above me gave me the wrong answer
Algae possess chlorophyll in their cells. They use carbon dioxide in a manner that is analogous to how we use food. Thus, option B is correct.
What is a characteristic feature of algae?By converting light energy to chemical energy through the process of photosynthesis, carbon dioxide and water are transformed into organic molecules.
Nearly all algae engage in the process, and in fact, much of what is currently known about photosynthesis was first uncovered through research on the green alga Chlorella.
Like other plants, algae benefit from sunlight, therefore denying them of it will limit or even completely stop their growth. For several days, completely shading the tank or aquarium from light is essential.
Therefore, algae require sunshine because algae can photosynthesize, or use sunlight to change carbon dioxide into biological material.
Learn more about algae here:
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1. Which equation best represents the dissociation of water molecules into hydrogen ions and hydroxide ions?
___________________1. When acted upon by an unbalanced force, an object at rest will do what? ___________________ 2. What equation allows you to calculate Newton’s Second Law of Motion? 3. Newton’s Second Law of Motion shows a relationship between _________________, _______________________ and ________________________. 4. Force is measured in a unit called _____________________. FILL IN THE BLANKS PLEASE!!!
Answer:
1. stay at rest
2. F = ma, or force is equal to mass times acceleration.
3.?
4.Kilogram-force: kgf
Explanation:
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