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3 years ago

How does the suns energy transfer to the Earth?

2 answers:

6 0

^^^^^ wronggg

the suns radiation (infrared radiation) that passes through the atmosphere through the different layers and finally reaches earth

ivanzaharov [21]3 years ago

3 0

Photothensis Because it’s the way of the god

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The action potential can move only in one direction because the recently depolarized area of the membrane is an absolute refract

Nataly [62]

Answer: Na+ channels are closed

Explanation:

The refractory period describes a period between the initiation of an action potential (where Na+ channels are active/open), and immediately after the action potential’s peak. In the absolute refractory period, action potentials cannot be generated, as Na+ channels are in an inactive or closed state, they usually take around one or two minutes.

After the absolute refractory period the relative refractory period (RRP) occurs. During the RRP, it is hard to send another action potential. Na+ channels are once again open, but the cell remains hyperpolarized- its membrane potential, remains negative. Recovery from inactivation is voltage and time-dependent; Action potentials would require an influx of more positively charged ions. These must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.

3 0

3 years ago

What chemical compound do cells use to store and release energy

My name is Ann [436]

Adenosine triphosphate
ATP

3 0

3 years ago

The addition of a phosphate group to a substrate is called ________. the enzyme that catalyzes this reaction is referred to as a

Maslowich

Phosphorylation
kinase

3 0

3 years ago

Which is a structure that directs the cell's activities? nucleus Golgi apparatus ribosome mitochondrion

Ira Lisetskai [31]

Answer:

Nucleus

Explanation:

Nucleus controls cells' activities by controlling the synthesis of proteins.

Golgi apparatus involves in the secretion and intracellular transport of a cell.

Ribosome helps the synthesis of proteins only.

Mitochondrion involves in respiration, generating energy for the cell.

3 0

3 years ago

Read 2 more answers

Two dihybrid pea plants (both tall and with purple flowers) are mated. The cross resulted in 9866 progeny, of which 5550 were ta

d1i1m1o1n [39]

Answer:

<h2>616 Short with white flower </h2><h2>1850 Tall with white flower </h2><h2>1850 Short with purple flower</h2>

Explanation:

A dihybrid cross is in which two genes of two different traits are crossed

As given, two dihybrid pea plants (tall with purple flower) are mated, resulting 5550 out of 9866 were tall with purple.

T= tall

t= short,

P= purple,

p= white;

So genotype of parents are TtPp ; T is dominant over t, P is dominant over p.

Crossing between two parens= TtPp × TtPp

so gamets are = parent 1: TP, Tp, tP, tp and parent 2: TP, Tp, tP, tp

Hence the four different gametes formed.

Now arrange the gametes on the top and left side of a Punnett square it'll genotypically results into different combinations, by which phenotypic ratios can be calculated.

offspring are = TTPP, TTPp, TtPP, TtPp....................TTpp, Ttpp.....ttPP, ttPp.......ttpp

(T_P_)= Tall with purple flower,

(T_pp)= tall with white flower,

(ttP_)= short with purple flower,

(ttpp)= short with white flower.

so it show 12:3:3:1 ratio'

Phenotypic classes are:

616 Short with white flower

1850 Tall with white flower

1850 Short with purple flower

8 0

3 years ago