In adult animals, ___________ are a source of undifferentiated cells that can divide to produce cells that can specialize.
Answer:
Stem Cells
Explanation:
-
A population of endangered sea turtles currently has 500 individuals. The intrinsic growth rate for the population is 0.04. How long will it take to reach 1000 individuals
The intrinsic growth rate for the population is 0.04. How long will it take to reach 1000 individuals is 17 years.
What is population?
The recent estimates display us that there are almost 6.five million sea turtles left withinside the wild with very special numbers for every species, e.g. populace estimates for the significantly endangered hawksbill turtle variety from 83,000 to probably simplest 57,000 people left worldwide.
N= N0e(rt) N= new populationN0= Original populationr= charge of increaset= time required1000= 500 e(0.04t)1000/500 = e(0.04t)2 = e(0.04t)ln 2 = 0.04 tt = ln 2/0.04t = 0.693/0.04 = 17.32 years.Read more about intrinsic growth rate:
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Heat-loss mechanisms do not include ________. A) reducing activity B) the evaporation of sweat C) behavior measures such as wearing light, loose clothing D) vasoconstriction of peripheral blood vessels
Heat-loss mechanisms does not include behavior measures such as wearing light, loose clothing.
What is Heat loss?These are the processes which involves heat being lost from a body to the surroundings.
Wearing tight and not light, loose clothing will promote heat loss which is why option C was chosen as the most appropriate choice.
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HURRY ITS URGENT
What is the atomic number of an atom that has 29 protons, 35 neutrons in the nucleus?
options:
64
29
cannot determine from information given
35
Answer:
29
Explanation:
atomic number is found from the number of protons
Identify the importance of water. check all that apply. it ensures life on earth can exist. it is a part of all organic compounds. it is used by plants for photosynthesis. it is the main component of many biological components, including blood.
Answer:
A, C, D
Explanation:
I said so
Answer:
A,C,D
Explanation:
e2020
Compare between simple fruit and multiple fruit in two points. How can fruit play an important role for continuity of generation in plant life?
Answer:
Simple Fruits: fruit derived from one ovary. Aggregate Fruits: fruits derived from multiple ovaries of a single flower. Multiple Fruits: Fruits from many flowers packed together, such as pineapple, blackberry, and raspberry.
the fruit protects the seeds and helps to spread them. Many fruits attract small animals. After eating the fruit, the seeds of that particular fruit is passed out together with the animal droppings. Then the seed will grow into a plant and the cycle repeats it self all over again.
Helppp with this pleaseeeeeeeee
Most energy in an ecosystem originally comes from _____.
the soil
plants
the Sun
primary consumers
Answer:
The Sun
Explanation:
-
According to the July 1985 New York Times article, what is to blame for the decline in the clamming industry?
Answer:
"Overfishing and pollution have been blamed for the clam shortage, and scientists believe the harvest must be limited before the stock becomes exhausted."
Explanation:
Hope this helps C:
~Chiena
solid waste is produced more in city than rural areas give reason
Answer:
there are more people per household and in general
Explanation:
Which would make the best pioneer species during primary succession?.
Answer:
mosses or lichens, algae fungi
this organisms are knows as pioneer species because they are the first species present.
EM waves
Approximate
scale of EM
waves
1. Radio waves
2. Microwaves
3. Infrared
4. Visible light
5. Ultraviolet
6. X-rays
7. Gamma rays
EM waves
1. Radio waves
2. Microwaves
3. Infrared
4. Visible light
5. Ultraviolet
6. X-rays
7. Gamma rays
description
a) Transmits heat from the sun, fires, radiators
b) Absorbed by the skin, used in fluorescent tubes
c) Used in cooking, radar, telephone,
d) Used to view inside bodies and objects
e) Makes things able to be seen
f) Used to broadcast radio and television
g) Used in medicine for killing cancer cells
ANSWERS
a) Transmits heat from the sun, fires, radiators.
- 3. Infraredb) Absorbed by the skin, used in fluorescent tubes
- 5. Ultravioletc) Used in cooking, radar, telephone,
- 2. Microwavesd) Used to view inside bodies and objects
- 6. X-rayse) Makes things able to be seen
- 4. Visible lighf) Used to broadcast radio and television
- 1. Radio wavesg) Used in medicine for killing cancer cells
- 7. Gamma raysAnswer:
a) Transmits heat from the sun, fires, radiators.
- 3. Infrared
b) Absorbed by the skin, used in fluorescent tubes
- 5. Ultraviolet
c) Used in cooking, radar, telephone,
- 2. Microwaves
d) Used to view inside bodies and objects
- 6. X-rays
e) Makes things able to be seen
- 4. Visible ligh
f) Used to broadcast radio and television
- 1. Radio waves
g) Used in medicine for killing cancer cells
- 7. Gamma rays
:
Drag the tiles to the boxes to form correct pairs.
Match the excerpts from the passage to the correct classification
From the given clauses and phrases, the independent clause can stand alone as a complete sentence while the dependent clause can not.
What are clauses?Clauses are groups of words that contain a subject and a verb that are related together.
Clauses can be dependent or independent clauses.
A phrase is a group of words that do not contain a subject but may contain a verb.
Based on the given options:
The independent clause is scientists create this plants and animals through genetic engineering. The dependent clause is " so that people can choose whether or not to consume these foods".The infinitive phrase is "to consume these foods "The gerund phrase is "the labelling of these foods".Therefore, the independent clause can stand alone while the dependent clause can not.
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The presence of which reactant is the best indicator of an oxidation-reduction reaction?.
Answer:
enzyme
Explanation:
I think enzymes are the only indicators
Answer:
D)H2
Explanation:
edge 2022
What happens to animals born with a change in species numbers ?
Answer:
If one animal's population increases, the population of animals that eat that animal might also increase. Increases in population aren't always beneficial.
Explanation:
Sometimes a population will grow too large for the environment to support. Other changes in limiting factors can cause a population to decrease.
source: NHPBS
Anaphylaxis is an overactive immune response to a perceived pathogen.
True or False
ONLY ANSWER IF YOU KNOW AND WHY
Answer:
True
Explanation:
Anaphylaxis is an acute allergic reaction to an antigen (e.g. a bee sting) to which the body has become hypersensitive.
Common symptoms include:
Skin reactions such as itching and hivesFlushed and pale SkinLower blood pressureDifficulty breathingChokingWeak and rapid pulse rateVomitingNauseaDizziness or faintingMark brainliest please
Answer:
True
Explanation:
This happens when our immune system overreacts to a foreign substance so much that it harms you.
In a population of 100 individuals there are 40 individuals with genotype AA, 40 with genotype Aa, and 20 with genotype aa. What is the frequency of the a allele
Answer:In a population of 100 individuals there are 40 individuals with genotype AA, 40 with genotype Aa, and 20 with genotype aa
Explanation:
Help please please thanks
Which characteristic do birds and mammals have in common? question 17 options: both have fur or hair. both are endothermic vertebrates. both have three-chambered heart. both are vertebrates that produce milk.
Answer:
I think the answer is both are endothermic vertebrates.
Endothermic vertebrates are ones which can produce their own heat and have a spine (backbone).
so.. the answer is endothermic vertebrates.
Hope it helps.
Someone please do this for me.
How is control of a disease such as bubonic plague complicated by the fact that it spreads across multiple animal species?
Answer:
Bubonic plague outbreaks are controlled by pest control and modern sanitation techniques. This disease uses fleas commonly found on rats as a vector to jump from animals to humans. The mortality rate hits its peak during the hot and humid months of June, July, and August.
Explanation:
Answer:
The fact that a disease spreads through multiple animal species creates problems in its eradication since it is necessary to look for more than one strategy for disease control, additionally this causes the disease to expand at a more dizzying pace.This situation also causes the disease to expand geographically and increases the likelihood of infection in humans.
Explanation:
If the grass contains 100,000 kcal of energy, how much energy will a fox obtain from eating a bird? 10,000 kcal 1,000 kcal 100 kcal 10 kcal
If the grass contains 100,000 kcal of energy, the energy a fox will obtain from eating a bird is 1,000 kcal.
What is Calorie?This is defined as a unit of energy and it decreases as it moves up the food web in the ecosystem.
The organisms only derive 10 percent of the energy when the feed on others. In this case, the grass has 100,000 kcal of energy which when eaten by the bird will be 10 percent which is 10,000 kcal. When the fox eats the bird it becomes 1,000 kcal.
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Diagram of hypertonic and hypotonic solution
Answer:
Explanation:
Hope one of them at least fits your needs
Where does most regular lightning occur?
A. The stratosphere
B. The troposphere
C. The Mesosophere
5. The substance being dissolved in a solution. A. sands B. solute C. solvent D. alloy
What is the substance being dissolved in a solution?
ANSWERThe correct answer is letter B. solute
WHY?Solute is known as the substance that is being mixed with a solvent (usually water) since water is considered as universal solvent. Solute is the dissolved substance in a particular solution, it can be completely different things.
WHAT IS SOLVENT?Solvent on the other hand is the substance where solute is being dissolved, most of the time it is a liquid or specifically water, and together they produce solution.
One perfect example is shown in the provided image.
 ___ dating uses radioactive elements to _____ matter such as rocks and ___. As the radioactive elements _____, they turn into other elements. Scientist then use the ratio of the two elements to determine how old something is.
a. fossils
b. know
c. chemical
d. disintegrate
e. integrate
f. radioactive
g. date
Answer:
Radioactive dating uses radioactive elements to date matter such as rocks and fossils. As the radioactive elements disintegrate, they turn into other elements. Scientist then use the ratio of the two elements to determine how old something is.
Explanation:
The fill-in-the-blanks with the help of given appropriate words is as follows:
Radioactive dating uses radioactive elements to date matter such as rocks and fossils. As the radioactive elements disintegrate, they turn into other elements. Scientists then use the ratio of the two elements to determine how old something is.What is Radioactive Dating?Radioactive Dating may be defined as a methodology that is used to find the dating of various rocks and minerals including fossils with the help of radioactive isotopes. This method is significantly useful for igneous and metamorphic rocks.
This method is used to determine the age of earth materials or objects of organic origin on the basis of a given radioactive material that it contains.
Therefore, the fill-in-the-blanks with the help of given appropriate words is well mentioned above.
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In the summer, snowfall decreases, and melting increases, which results in the outflow being melt.water, thus leading to an increase in ablation causing an overall __________ bud.get and glacier shrinkage.
Answer:
Negative
Explanation:
True or False: Food webs and the ecosystems that support them look different in different parts of the world depending on their habitat conditions.
Answer:
true
Explanation:
hope this helps:)
Food webs and the ecosystems that support them look different in different parts of the world depending on their habitat conditions. It is a correct statement.
Since the species present depend on the location, food webs depend on location.
What is the food web?A food web is a wider version of a food chain. It connects numerous food chains into inter-organism energy interactions.
What is an ecosystem?
All species and the abiotic environment with which they interact make up an ecosystem. Nutrient cycles and energy flows bind these biotic and abiotic components together to form an ecosystem.
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The Punnett square shows the inheritance of flower color in snapdragons in the F, generation. What is the expected ratio of red flowers to pink
flowers to white flowers in the F2 generation?
Answer:
the answer will be all pink
a field biologist was researching the possibility of interbreeding among various amphibians living in a particular habitat of Costa Rica. The mating timetable for these amphibians is shown. Which generalization could the field biologist correctly make?
The generalization could the field biologist correctly make is that the pepper frog and bullfrog do not interbreed.
What do you mean by Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection.
In this graph, it is clearly demonstrated that the particular species undergo breeding at a specific period of time during a year. The species of pepper frog breed in the month of April, while the species of the bullfrog breed in the month of July.
Therefore, the generalization could the field biologist correctly make is that the pepper frog and bullfrog do not interbreed.
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