Biology High School

Please I need help with this

Please I Need Help With This

Answers

Answer 1

Answer:

nucleus : control activities in the cell. 2, vacuoles: it allows substances in and out of the cell.

Related Questions

A dependent variable is:

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Answer:

the variable that is being measured or tested in an experiment

Explanation:

just fax

A dependent variable is The variable that is being measured or tested in the experiment

No.3 plzz ...?
Any one ​

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2^n=32

n=5

It doesn't really match up with the options so not sure, my best guess would be either choosing 16 or 4. 16 in case the person calculated as 16 times 2 = 32 and 4 bc its the closest.

Helpppppp please!!! How do membrane proteins contribute to the membrane potential?

Answers

Answer:

the answer is B

Explanation:

the answer is b

How are gymnosperms in category gnetophyta usually pollinated?

A. by wind

B. by hand

C. by insects

D. by water

Answers

Answer:

by insects

Explanation:

What is responsible for the red tide phenomenon? It is a phenomenon that usually coincides with storm surges; the name comes from the red kelp that often washes ashore as a result of rough weather. Red tide occurs in patches of water where certain species of dinoflagellates flourish. They are so abundant that the water becomes discolored and takes on a red hue. Red tides occur once a year and in accordance with the lunar cycle. The water appears red as a result of reduced levels of photosynthetic pigmen

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Answer:

Red tide occurs in patches of water where certain species of dinoflagellates flourish.

Explanation:  

Red tides refer to the noticeable microalgae proliferation that can be recognized for being a big spot in the sea of a characteristic coloration. This phenomenon is caused by two microalgae groups: diatoms and dinoflagellates, both part of phytoplankton.

Red tides occur when certain environmental factors -such as temperature, light, nutrients availability, ph, etcetera- favor the overproduction of these organisms. These species produce toxins that turn to be dangerous for other animal species that feed on them.

Because these microorganisms produce pigments, their accumulation on the sea surface can be noticed as reddish, brown, or greenish color spots of variable extension.

Single-celled organisms with cell walls do not have contractile vacuoles. Suggest why.​

Answers

There is no need for one and there is no space since single-called organisms are too small.
Hope this helps and please like!!

Which of the groups below has suffered the greatest percentage of species extinctions since 1600 (A) birds, (B) fishes, (C) mammals, (D) reptiles

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(a) Birds is the correct ans

Explanation:

.......

Answer:

My guess would be mammals

Explanation:

Habitat destruction

write a short note on akaryotic cells​

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Answer:

Eukaryotic cells have a nucleus enclosed within the nuclear membrane and form large and complex organisms. Protozoa, fungi, plants, and animals all have eukaryotic cells. ... They can maintain different environments in a single cell that allows them to carry out various metabolic reactions

Answer:

Explanation: Akaryocytes, also known as akaryotes or acaryotes, are cells without a nucleus. The most common type of akaryocytes are viruses. The name is derived from the Greek prefix "a-", meaning "without" and the Greek "karyo-", meaning "nut" or "kernel". ... This cell biology article is a stub.

Forensic anthropologists are trying to determine the age of a male skeleton that has been uncovered. They conclude that he must have been between 16 and 19 judging by the measurement of his

ribs
clavicle
pelvic bone
tibia

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i am pretty sure clavicle i think

mitosis cell division are required to form 64 cell for one cell?
a.4
b.6
c.16
d.32
​

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Answer:

im not sure

Explanation:

Select all that apply.
Which conditions relate to the research of van Helmont?
plant mass related only to soil
conclusions partly correct
demonstrated plant food from soil
conducted around 1400 AD.
plant mass related to H 20

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Answer:

I'd say the best Answer is A & C

Explanation:

Define the word ⇒ Biosphere


THANK YOU!! :)

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The biosphere is a narrow zone of the earth where land, water, air interact with each other to support life.

Answered by Gauthmath must click thanks and mark brainliest


An eagle carries a fish up 50 m into the sky using 90 N of force. How much work did the eagle do on the fish?
(Work: W = Fd)
40 J
59 J
140 J
4500 J

Answers

Answer:

4500J

Explanation:

As the formula stated above:

work=force×distance

=90×50

=4500J

ciri ciri tumbuhan telah mengalami perkembangan​

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Answer:

Is that another language

Do populations of different species of birds that live in the same community compete? Explain.

Please help me

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Absolutely. These birds will be fighting over land, food, and other resources in the finite ecosystem they share. Competition is part of natural selection, and it’s part of these ecosystems.

You observe a cell in a stained section of connective tissue. The cell has an indented nucleus and obvious cytoplasmic granules. Upon further testing, you determine that the granules contain histamine. This cell is most likely a(n) _____. Multiple choice question. mature neutrophil mast cell eosinophil B cell

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You observe a cell in a stained section of connective tissue. The cell has an indented nucleus and obvious cytoplasmic granules. Upon further testing, you determine that the granules contain histamine. This cell is most likely a(n) _____.

mast cell

Soil moisture influences both hydrological and agricultural processes and is part of the water and energy cycles through ________.

transpiration
evapotranspiration
evaporation
condensation

Answers

Answer:

Its either evapotranspiration or condensation

Explanation:

Hope it helps✌✌

Answer:

The correct answer is evapotranspiration.

Explanation:

Evapotranspiration is the process of water moving from Earth's surface to the atmosphere. The way water moves from the soil to atmosphere is through this process.

what is force? pls answer my question ​

Answers

Answer:

Strength or strength, which is an ability of the human physical condition that is needed in increasing the achievement of learning motion. ... Harsono (1988: 47) defines strength as energy to fight a resistance or the ability to generate tension

Explanation:

sorry if wrong (◠‿◕)

which of these resources can not be renewed? A. Solar B. Coal C. Wind D. Biomass

Answers

Answer:

coal

Explanation:

it is a non renewable energy source

define cerebral action​

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1 of or relating to the cerebrum or to the entire brain. 2 involving intelligence rather than emotions or instinct.


Not sure if it’s right

como se llama el primer cartílago de la tráquea

Answers

Answer:

cricoid cartilage

Explanation:

I think

how do plants use carbon dioxide
A.They release it as waste
B.To build proteins
C.They store it as fuel in limestone deposits
D.To produce sugars

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Answer:

to build protein............

Answer:

C. To produce sugars.

HOPE IT HELPS YOU.

What’s was the purpose of Miller and Urey’s experiment

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Answer:

D

Explanation:

to find out how biological molecules could have first formed

I’m pretty sure it’s D! Hope this helps!

Please help me...will give braniliest

Answers

The answer is segment Segment
Segmented


Hope it helps…Good luck..Stay safe and healthy…thanks….<3333

give a short introduction of carl von linnaues and rh whittakers regarding classification of living beings one major point​

Answers

Carl von Linnaeus and Rh Whittaker’s are good people

Which of the following is an example of a natural selection?
1 point
All grey squirrels have not changed for a 1,000 years
Birds developed wings because they wanted to fly.
Fish developed gills because they wanted to move to land.
A new species of purple squirrels forms due to a change in the ecosystem.

Answers

Answer:

A new species of purple squirrels forms due to change in the ecosystem

Explanation:

Key part: Change in the ecosystem

The organs in the human body perform specific functions for survival.

Organ A delivers blood to the body
Organ B delivers oxygen to the body
Organ C delivers messages to the body

Which of the following correctly identifies the organs that perform each function above?

Organ A is the heart, Organ B is the brain, and Organ C is the lungs
Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Organ A is the lungs, Organ B is the brain, and Organ C is the heart
Organ A is the lungs, Organ B is the heart, and Organ C is the brain

Answers

Organ A is the heart

Organ B is the lungs

Organ C is the brain

Because heart only delivers blood to lungs and other body tissues, Lungs input oxygen into the blood and brain sends signals and messages to the body parts.

This is the answer. Hope it helps you

Answer:

B) Organ A is the heart, Organ B is the lungs, and Organ C is the brain

Explanation:

There are four different combinations of offspring genotypes in every Punnett square. Fill in the blanks below to complete the ratio for the Punnet square shown to the right.

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Where's the Punnett square?

which of the following are human activities that can negatively impact ecosystems.

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Answer:

Hey not sure if there is something that is supposed to be viewable but some common human activities that can impact ecosystems are, deforestaion, pollution, littering, fracking, spilling oil into the oceans.

Explanation:

Answer:

You didn't put a photo but cutting down trees of putting chemicals into the water/earth can harm ecosystems

Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partners to be willing to mate. Such a ritual constitutes a ________ ________ reproductive barrier. Group of answer choices

Answers

Complete question:

Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partners to be willing to mate. Such a ritual constitutes a ________ ________ reproductive barrier.

Group of answer choices

A) behavioral . . . prezygotic

B) mechanical . . . postzygotic

C) temporal . . . prezygotic

D) gametic . . . postzygotic

Answer:

A) behavioral . . . prezygotic

Explanation:

The biological concept of species states that individuals of a species can not mate and reproduce with individuals of another species. But if they get to reproduce, the progeny will not be viable or fertile. There will not be any reproductive success.

There are different reproductive isolation mechanisms, which are barriers that inhibit or interrupt the genetic flow between different species.

Reproductive barriers are isolation mechanisms that prevent mating between two or more species. The prezygotic mechanism avoids fertilization between individuals of different species, while the postzygotic mechanism impedes the zygote to develop and reach the adult stage.

There are different types of reproductive barriers.

Pre-copulatory o pre-ziygotic:

Ecological or by habitat isolation; Seasonal or temporal; Sexual o ethologic; Mechanic; Gametes incompatibility.  

Postzygotic mechanisms or barriers include

Hybrid inviability,   Hybrid sterility, Hybrid reduced viability or fertility, Cytoplasmic interactions.

Behavioral isolation is also known as ethological isolation or sexual isolation. This is a prezygotic barrier that refers to the fact that even when many species occupy the same area, they are not sexually attracted to each other, and might be rejected because of behavioral factors, not getting to mate. This mechanism includes courtship patterns or mating rituals and specific chemical signals that allow recognition between individuals of the same species.

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