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nirvana33 [79]
2 years ago
13

Which population had the greatest density?​

Biology
1 answer:
svlad2 [7]2 years ago
7 0

Answer:

China

Explanation:

it has greatest/highest density

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In humans, a combination of cx chromosomes results in a female zygote and that of xy results in male zygote from whom does a mal
IrinaK [193]
The soon to be male organism, developing from the zygote, receives or inherits the X chromosome from his mother. His father provides him the y chromosome, the smaller of the 2 sex chromosomes.
8 0
2 years ago
When acetylcholine binds to receptors at the motor end plate, the end plate membrane becames:__________a. repolarized. b. more p
sladkih [1.3K]

Answer:

d. more permeable to sodium ions.

Explanation:

The binding of Acetylcholine  with the receptors at  motor end plate facilitate   membrane permeability to sodium ions therefore  opening of voltage gated channels for sodium ions.

Sodium ions diffused into the synapse of post synaptic neuron at the neuromuscular junction.

If  the  stimulus is up to threshold levels; more chemical(neurotransmitter) gated sodium channels opens, and sodium ions move into the  synapse to depolarize the membrane with  reversal of charges to generate action potential.

The continuous  binding of Acetycholine , leads to permanent opening of sodium ions,and over excitation from depolarization.  Acetycholinesterase enzymes breakdown Acetycholine to choline  and Acetyl Co -A. These are recycle back to Acetycholiine

7 0
3 years ago
Students in a science class visited four local ecosystems. The students observed the species present in each ecosystem and recor
Reptile [31]

the answer is A

this is because in ecosystem 1 there are only predators and no other species are observed. therefore predators have less food to eat thus they will die of hunger or move to another ecosystem

7 0
3 years ago
If a man and a woman, each with sickle-cell trait, were planning to marry, what information could you provide them regarding the
kiruha [24]

Answer:

I'll inform them that the possibility of all their future children/offspring being phenotypically sickle-celled is very high.

Explanation:

Sickle cell is an inherited disease condition in which the red blood cells of the blood loses its shape and hence, dies or gets broken down. It has to do with the blood genotype of an individual. There are three major types of blood genotypes in humans namely: AA, AS, and SS. SS is the recessive genotype that codes for the sickle cell trait.

Hence, a human with the sickle cell trait has a genotype- SS. Therefore, according to this question, a man and a woman, each with sickle-cell trait (SS), were planning to marry, This will mean that both the man and the woman will always produce a gamete with S allele, which will combine to form an SS offspring. In other words, all of the offsprings of this man and woman will be sickle-celled.

7 0
2 years ago
Which of the following types of energy does the Earth receive from the Sun?
mafiozo [28]

Answer:

Solar Energy

The sun radiates solar energy to the earth and it is used for other things.

7 0
2 years ago
Read 2 more answers
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