BIOLOGY HIGH SCHOOL

Cells usually cannot use heat to power mechanical work because (2 points) Question 2 options:


1) 

after several energy conversions, there is not enough energy in heat to power cellular functions


2) 

as the heat increases the cell's temperature, it must be released to prevent cell damage


3) 

heat is a waste product of chemical reactions and not a true form of kinetic or potential energy


4) 

there is not enough of a temperature difference within the cell for heat to be able to flow

Answers

Answer 1
Answer:

The answer is; option 2

The cell must maintain a homeostatic temperatures of 37 degrees centigrade in humans. Therefore heat is less likely to be used to power mechanical work because it has to be kept constant. Heat ,also, cannot be stored when it increases in the cell, the way energy is stored in chemical bonds in ATPs.  



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MIDDLE SCHOOL

Where does the old crust move when the seafloor spreads

Answers

Answer:

Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

Explanation:

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.

The continual process of seafloor spreading separated the stripes in an orderly pattern. Oceanic crust slowly moves away from mid-ocean ridges and sites of seafloor spreading. As it moves, it becomes cooler, more dense, and more thick

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How is mitosis different in plants and animals? A. in animals the dna is one circular chromosome
B. in plants the dna is not duplicated
C in plants a new cell wall forms to split the cell
D in animals there is no g0 phase or g2 phase
Answer: c in plants a new cell wall forms to split the cell

Answers

Yes the answer’s C.

so what’s your question?(tell me in comments)

HIGH SCHOOL

Which is made up of lipids

a) steroids

b) peptides

c) prostaglandins

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B because the peptides when they collect in a clump, has a effect like hydrocloric acid.
COLLEGE

2. Which organisms utilize a one-way air flow through their lungs to maximize air flow efficiency and oxygen consumption? A. Amphibians B. Fish C. Mammals D. Birds

Answers

The correct answer is option D, that is, birds.  

Birds are the species that uses a one-path air flow via the lungs to enhance the efficiency of air flow and consumption of oxygen. The flow of air in birds plays an essential function at the time of flying. In addition, greater oxygen consumption and airflow efficiency are required by the birds as their heart pumps briskly in order to tackle the flapping of wings that make them fly.  


The best answer is D, birds.
For more information and details on the way a bird's respiratory system works:
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
HIGH SCHOOL

Word Bank: Allele, carrier, codominance, dihybrid cross, F1 generation, F2 generation, genotype, heredity, heterozygous, homozygous, hybrid, incomplete dominance, law of independent assortment, law of segregation, monohybrid cross, multiple allele, P generation, phenotype, Punnett square, recessive gene, sex chromosome, sex-linked trait


The study of how traits are passed through generations is called ______.

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Answer:

Hi The correct answer is heredity

MIDDLE SCHOOL

Which of these animals undergoes incomplete metamorphosis? A) beetles
B) butterflies
C) praying mantis
D) moths

Answers

Answer: C). praying mantis

The life cycle of insects that undergo incomplete metamorphosis takes place in three stages: egg, nymph and adult. When the eggs are hatched then the insect body undergo several nymphal stages to develop into an adult form. The adult insect can be distinguished from the nymphs by size and presence of wings. The animal which undergoes incomplete metamorphosis is praying mantis.


Praying mantis
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MIDDLE SCHOOL

What type of relationship do fungi have with plants? A. commensalism
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Answers

Mutalism because they both benefit each other

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Answers

Answer:

1) Decrease

2) Demand for beef

3) Left

4) demand

5) Lower

Explanation:

As millions of Americans switch to the new diet, we can expect a(n) _decrease____ in the __demand for___ beef, leading to a shift to the __left___ in the __demand___ curve for beef and _lower____ beef prices.

HIGH SCHOOL

20 POINTS!!
The compound Al(NH3)2 has _________ atoms of nitrogen.

Answers

Well they composed of three hydrogen. atoms and one Nitrogen. atoms. but 1 ammonia (NH3) molecule has 4 aton.One atom of nitrogen. and 3 atoms of hydrogen ...

two atoms of nitrogen

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