Words to Know Write the letter of the definition next to the matching word as you work through the lesson. You may use the glossary to help you. eukaryote A. A protective layer surrounding a cell that controls what enters and leaves the cell spore B. An organism composed of one or more cells that contain nuclei cell membrane C. A reproductive cell that is resistant to harsh conditions and capable of developing into an adult without fusing with another cell prokaryote D. A single-celled organism that lacks a nucleus and membrane-bound organelles

Answers

Answer 1

Answer:

Statement A - cellular membrane

Statement B - eukaryote

Statement C - spore

Statement D - prokaryote

Explanation:

The cell membrane is a protective layer present around the cell and cell organelle that regulates and allows different molecules to enter and exit to regulate homeostasis.

Eukaryotes are the organism that can be unicellular or multicellular with the cells contain a nucleus in it.

Spores are reproductive cells that has a resistant layer that protects the cell from an unfavorable condition and capable to form an adult.

An organism that is unicellular and lacks the nucleus is known as a prokaryote and bacteria is an example of such organisms.


Related Questions

The respiratory system controls __________, and the circulatory systems controls __________. (5 points)
antibodies; digestion
breathing; blood flow
muscles; bones
nerves; senses

Answers

Breathing; blood flow.

Answer:

respiratory- breathing

Circulatory- blood flow

Explanation:

HELPPPP!!! HELPPPPP!! PLSSSS!! ASAPPPP

Answers

D - the chipmunk population would likely continue to increase

Which of the following statements about symbiotic relationships is true?
In mutualism, neither organism benefits.
At least one organism benefits from commensalism.
In parasitism, both organisms are harmed.
Both organisms benefit from commensalism.

Answers

Answer:

At least one organism benefits from commensalism.

Explanation:

The symbiotic relationship of commensalism is when one organism benefits and the other organism receives neither benefit nor harm.

So, this statement is true, because at least one organism has to benefit from the relationship, while the other will not be harmed or helped.

helppp plzzzz
what is the relationship between atmospheric pressure and the density of gas particles in an area of decreasing pressure?
A. as air pressure in an area decreases, the density of the gas particles in the area increases and decreases in an alternating pattern.
B. as air pressure in an area decreases the density of the gas particles in the area increase.
C. as air pressure in an area decreases, the density of the gas particles in that area remains constant.
D. as air pressure in an area decreases the density of the gas particles in that area decrease.

Answers

Answer:

As air pressure in an area increases, the density of the gas particles in that area increases.

Explanation:

Which occurs during both DNA replication and protein production?

RNA leaves the nucleus.
DNA leaves the nucleus.
RNA unzips.
DNA unzips.

Answers

Answer: RNA leaves the nucleus

Explanation: I did the assigment and got it right

1. RNA leaves the nucleus during both DNA replication and protein production.

What is DNA replication?

"DNA replication is the process by which the genome's DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome."

What are the main steps involved in DNA replication?

The main steps involved in DNA replication are as follows:

Replication Fork Formation.Primer Binding.Elongation.Termination.

What is protein production?

"Protein production is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus."

What are the main steps of protein production?

Protein production includes three steps:

Initiation. Elongation. Termination.

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Read the following paragraph and fill in the gaps with words from the text box below. Each word may
be used once, more than once, or not at all.

Seeds can be spread by......... seed pods, wind, water or ............ The
dormant ........inside a seedcan survive extreme........... and lack
of ..........They can travel long distances before they.......

embryo/exploding/animals/germinat/ water/temperatures​

Answers

Answer:

exploding, animals, temperatures, water, germinate

Explanation:

Seeds can be spread by exploding seed pods, wind, water or animals. The dormant embryo inside a seed can survive extreme temperatures and lack of water. They can travel long distances before they germinate.

Which best describes a neutralization reaction? areaction between an acid and a base Oareaction between two acids O a reaction between a base and a salt Oa reaction between two salts​

Answers

The statement best describes a neutralization reaction is a reaction between an acid and a base. The correct option is a.

What is neutralization?

Neutralization is the reaction that occurs when acids and bases of equal strength react to generate salt and water. Because acid and bases cancel each other out, the salt generated in the reaction is neutral.

Neutralization is the reaction of an acid and a base that causes the pH to rise to 7. It is a useful process that occurs in everyday life, such as the treatment of acid indigestion and the addition of lime to acidic soil. Neutralization lowers the pH of alkali to around seven.

Taking a base helps to neutralize excess acid in our stomach. Because formic acid is present in the ant sting, it can be painful. Using moist baking soda, which is basic in nature, we can neutralize the acid action and reduce the discomfort caused by the sting.

Therefore, the correct option is a, action between an acid and a base.

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Answer:

the correct option is A, action between an acid and a base.

Explanation:

factors that make an ecosystem stable

Answers

Explanation:

factores  físicos  son  la  luz  solar , el  suelo ,  el  agua ,  los  nutrimentos , la  temperatura , y   el  aire

An ecosystem is said to possess ecological stability (or equilibrium) if it is capable of returning to its equilibrium state after a perturbation (a capacity known as resilience) or does not experience unexpected large changes in its characteristics across time.

Which statement best accounts for the decline in bighorn sheep populations? 1. Predators of the sheep decreased in number. 2. Sheep ewes that have shorter, spiked horns increased in number. 3. Human activities directly and indirectly affected the sheep. 4. The sheep were listed as a "species of concern" by Glacier National Park.

Answers

Answer:

The statement which best accounts for the decline of the bighorn sheep population is - " Human activities directly and indirectly affected the sheep."

Explanation: Explaination of the following statements -

Predators of the sheep decreased in number.

Predation is rarely considered a major mortality factor (Wishart 1975, 1978). It is well known that bighorn sheep are preyed upon, but there is little information available on the effect(s) of predation on the populations of bighorn sheep. Numerous citations document the stalking and/or killing of bighorn sheep by a number of predators.

Thus , this statement is not correct.

Sheep ewes that have shorter, spiked horns increased in number -The larger, wild relative of the domesticated sheep is the bighorn sheep. Males are called "rams" and have long spiral horns, while females are called "ewes" with shorter, spike-like horns. With white areas on the muzzle, the back of the legs and around the rump, the coat is short, coarse and usually brown. The sheep will shed its hair once a year to reveal a new coat underneath.

Thus , the statement does not match with the decline of the bighorn sheep.

Human activities directly and indirectly affected the sheep. -: Disease transmission, human interference, overgrazing, and loss of habitat are often cited as factors responsible for decreases in the abundance and distribution of bighorn sheep. these all factors comes under the human activities which directly /indirectly results in the declination of the bighorn sheep.

Hence, this statement is correct .

The sheep were listed as a "species of concern" by Glacier National Park.  

Home to 400 to 600 bighorn sheep, Glacier National Park lists the animal as a "species of concern," that is, at risk of being endangered.  The research has also shown just how sheep-like bighorns could be. They're creatures of habit, that is.  Therefore , the national park indicated the species at risk , but were not responsible for their declination.

Hence, this statement is incorrect.

Therefore , the correct answer is 3 ( Human activities directly and indirectly affected the sheep.)

in the metric system, do prefixes increase by a factor of 100?

Answers

Answer:

I believe that every prefix increases/decreases by 10.

Explanation:

For example

Kilo: 1,000

Hecta: 100

Deca: 10

Why label subject biology if this is a math question

(Environmental) Southern England What are the major concerns about soil erosion on arable land in Britain?

Answers

Answer:

Soil nutrient loss

Algae blooms

Pollution of water ways

Explanation:

Soil nutrient loss - a major concern as when soil erodes, this results in nutrient run off. Heavy rains can "wash away" essential nutrients within the soil therefore reducing the fertility of the land.

Algae blooms - when nutrients run off soil as a result of soil erosion they can leech into nearby fresh stream and even into salt water marine environments. This large increase of nutrients results in algae thriving and forming a layer across the top of the water. This reduces the oxygen and sunlight available to other marine plants and essentially suffocates plant and animal species.

Pollution of water ways - The sediment of soil that is eroded makes its way into fresh water ways can not only "bury" plant species and reduce biodiversity but it also reduces the water quality. It can introduce pathogens to the water from liverstock farming as well as introducing pesticides that may be harmful to wildlife.

How does the statement Archaea have ribosomes, similar to eukaryotes support the theory presented in the article

Answers

Answer:

Since archaea are some of the oldest forms of life on Earth, the similarities suggest that some structures in eukaryotic cells, such as ribosomes, partially evolved from archaea

Explanation:

What types of substances tend to be alkaline?

Answers

Answer:

Bases, like cleaning supplies

Explanation:

Starting with the cell, list the next four steps in the levels of organisation for an animal

Answers

Answer:

cell, tissue, organ, system, organism

During the light dependent reactions of photosynthesis which is not produced
A.Oxygen
B.ATP
C.NADPH
D. Glucose

*hurryyyyyyy*

Answers

Answer:

D. Glucose

Explanation:

What do biogeochemical cycles represent?

Answers

The biogeochemical cycle of water, or the hydrological cycle describes the way that water (Hydrogen Dioxide or H 2 O) is circulated and recycled throughout Earth’s systems. All living organisms, without exception, need water to survive and grow, making it one of the most important substances on Earth.

hope that helps

Biogeochemical cycles represent the main system where the energy of the Sun is converted into the energy of chemical compounds by living beings and the products of their activity.

What is Biogeochemical cycle?

A biogeochemical cycle is defined as the path by which a chemical substance cycles through the biotic and abiotic compartments of the Earth where the biotic factor is the biosphere and the abiotic factors are the atmosphere, hydrosphere and lithosphere.

Nutrients cycle occur through organic components as well as abiotic components. In biosphere the term bio refers to biotic components while 'geo' refers to abiotic components. Therefore, nutrient cycles in nature are called biogeochemical cycles.

Thus, Biogeochemical cycles represent the main system where the energy of the Sun is converted into the energy of chemical compounds by living beings and the products of their activity.

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why is a soda exploding/fizzing a physical change?

Answers

Answer:The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.

Explanation:

Explain how xylem cells are adapted for their function.

Answers

Answer:

Xylem cells have no cytoplasm or end walls, meaning they form a tube through which water can pass freely to allow water transport. Lignin strengthens the cell walls, helping to support the plant.

Xylem vessel from plant stem- dead, hallow cell with strengthening rings. Carries water up stem.

What is the monomer of DNA and RNA? Which part is variable (can change)?

nucleotide, base
Onucleotide, phosphate
amino acid, R group
monosaccharide, sugar​

Answers

nucleotides are your monomer of DNA and RNA.

Answer:

nucleotide, phosphate

Explanation:

~PLEASE HELP ME~
The warming of the atmosphere by the trapping of heat being radiated to space is called
a)condensation
b)evaporation
c)the greenhouse effect
d)radiation

Answers

Answer:

The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Solar energy absorbed at Earth's surface is radiated back into the atmosphere as heat. As the heat makes its way through the atmosphere and back out to space, greenhouse gases absorb much of it.

The answer is c



Good luck

What are the solutions of the following equation?

Answers

Answer:

Explanation:

5 ( x + 3 ) - 4 = 8 ( x + 3 ) - 4

5x + 15 - 4 = 8x + 24 - 4

5x + 11 = 8x + 20

By substituting,

5x - 8x = 20 - 11

-3x = 9

x = -9 / 3

x = -3

So the correct option is D

Hope this helps

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5(x+3)-4=8(x+3)-4
5x+15-4=8x+24-4
Start combining
5x+11=8x+20
5x-8x=20-11
-3x=9
X=9/3
X=-3

Which statement is true about oxygen and nutrient levels of rivers? TIMED TEST

Your answer:

Fast moving mountain streams which flow over rocks and waterfalls are high in oxygen due to the amount of surface area of the water that is exposed to the air.


Fast moving mountain streams are high in nutrients. Organisms have adaptations to hold on in fast moving water, resulting in a large diversity organism.


Slow moving flood plain rivers are high in oxygen due to the amount of surface area of the water that is exposed to the air.


Slow moving flood plain rivers are low in nutrients. These rivers move too slow for plant growth and other organisms to survive.

Answers

Answer:

fast moving mountain streams which flow over rocks and waterfalls are high in oxygen due to the amount of surface area of the water that is exposed to the air.

Fast moving mountain streams are high in nutrients. Organisms have adaptations to hold on in fast moving water, resulting in a large diversity organism.

Slow moving flood plain rivers are high in oxygen due to the amount of surface area of the water that is exposed to the air.

Slow moving flood plain rivers are low in nutrients. These rivers move too slow for plant growth and other organisms to survive.

hi… what is zoospor?​

Answers

Answer:

from google HAHA, just searched it there

what is bees called?​

Answers

bees are classified as insects

what is an example of a question someone might ask to start a descriptive investigation?

Answers

Explanation:

where were you last night and what we're you wearing

If you wanted to observe a living organism-an amoeba, for example-which type of microscope would you use?
A. electron microscope
B. light microscope
C. either one
D. niether one

Answers

Answer:

compound light microscope

Explanation:

an amoeba is a microscopic unicellular protist

a)what are the difference between two species of minnows?​

Answers

Animals are often individually consistent in their behavior, not only over time, but also across different functional contexts. Recent research has focused on phenotypic and evolutionary mechanisms explaining such personality differences through selection. Parasitism and predation induce important mortality and fitness costs, and are thus main candidates to create and maintain personality differences in the wild. Here, we present data on the behavioral consistency of the Eurasian minnow (Phoxinus phoxinus) from two populations that live in different tributaries of the same river, but whose ecological environment differs fundamentally with regard to predation and parasitism. We experimentally demonstrate that individual minnow in both study populations are consistent in their boldness and activity. However, the two study populations differ notably: in the high predation and parasitism risk population fish show higher mean boldness, but tend to be less active than fish in low predation and parasitism risk population. Parasite (Diplostomum phoxini) load was negatively, but not statistically significantly, associated with fish activity level. Our study suggests that parasitism and predation are likely important agents in the ecology and evolution of animal personalities.

A nursing infant is able to obtain disease fighting antibodies, which are LARGE MOLECULES, from its mother's milk. These molecules probably ENTER the cells lining through the baby's digestive track via… * 2 points a. Osmosis b. Diffusion c. Endocytosis d. Exocytosis

Answers

Answer:

The correct answer is - option C. endocytosis.

Explanation:

Endocytosis is the transfer process of large molecules from the outside of the cells by internalizing them or engulfing them in vesicles, it is possible by invagination of the surface of the cell to form vesicles.

In an infant, the antibodies like large molecules from the mother to the baby are transferred through the Mother's milk which is entered in the baby's digestive tract via Endocytosis

A teacher pushed a 98 newton desk across a floor for a distance of 5 meters in 4 seconds what was his power

Answers

W=98(5)cos(0)
=490J
P=W/t
=490/4
=122.5W

30 living things name​

Answers

Answer:

Here is a list of living things:

HumansGorillasApesMonkeysGiraffesPigsHedgehogsCowsHorsesSheepGoatLambDuckHummingbirdOstrichCockroachCicadaCentipedeKatydidElephantTapirRhinocerosHippopotamusTigerSquirrelSilverfishOctopusSharkWhaleDolphin

Hope this helps!

Animals:dogs,cats,tigers,sharks,human beings,cows,lions,rabbits,fish,eagles

Plants:mangoes, apples,oranges,bananas,grapes,coconut,lime,peach,pear,

Birds:owl,dove,goose,turkey,raven,parrot,ostrich,hawk,eagle,pigeon,robin

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