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eimsori [14]
3 years ago
11

19. Choose a country in the middle of Africa with a high natural increase rate. Is the rate increasing

Biology
1 answer:
sattari [20]3 years ago
4 0

Answer:

nigeria , decreasing

Explanation:

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Examples of skin receptors
GenaCL600 [577]
Cutaneous<span> receptor. The </span>cutaneous receptors<span> are the types of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system.</span>Cutaneous receptors<span> include </span>cutaneous<span> mechanoreceptors, nociceptors (pain) and thermoreceptors (temperature).</span>
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3 years ago
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Which type of gene therapy results in alteration of the DNA of a gamete or a fertilized ovum?
larisa86 [58]

Answer:

The correct option is: <u>e. Germline gene therapy</u>

Explanation:

The <u>germline gene therapy</u>, GGT is the <u>modification of the germ cells</u>. In this therapy, a functional gene is introduced into the genomes of the gametes. Such a modification of the germ cell results in all the cells of the organisms to get modified. This change can therefore be <u>passed on to the next generations.</u> Many countries such as Canada, Germany and Switzerland, have prohibited the use of the germline gene therapy on humans.

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3 years ago
The Venus flytrap is a carnivorous plant that traps insects in a plant structure. The plant structure closes when the small hair
marishachu [46]

Answer:

Venus flytrap communicate with other organisms by secreting a sugary substance (nectar) in its leaf glands.

Explanation:

The Venus flytrap is a carnivorous plant that traps insects in a plant structure that closes when the small hairs on the inside of the structure are touched.

The leaf of this plant contains a watery fluid secreted by glands on its open traps. Organisms like flies are attracted to the secreted nectar and perches on it; only for the hairs of the flytrap to get shut due to that touch and cell expansion triggered.

5 0
3 years ago
What specialized tissue do vasculer plants have that other plants do not
rosijanka [135]

Answer:

You didnt give me and choices so out of the information i have from this answer i can conclude that the answer is out of these 3 Options.

1.) Phyllids 2.) Xylem 3.) Phloem

6 0
3 years ago
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Give two reasonsthat may account for the continuous firing of a<br> PostsynapticNeuron.
lyudmila [28]

Answer:

1.Continuous diffusion of negatively charged ions into the postsynaptic neurons , <u>which  leads to continuous reversal of charges (hyperpolarization) and therefore continuous firing of action potential</u>

2. Inhibition of hydrolytic enzymes e.g (acetycholinesterase)   that  metabolize activities of  cholinergic   neurotransmitters  e,g acetycholine at post synaptic cleft. leading to firing of action potential.

Explanation:

Neuron whose dendrites  transmits action potential to the  neuromuscular junction is called presynaptic neuron. While  neuron that  transmit action potential away from the neuronal synaptic junction, or from the neuromuscular  junction to the cell body of adjacent neuron or to effectors (gland and muscles) are called  post synaptic  neuron.

The more  negatively charged ions that diffused into the post synsptic neuron, the more depolarization, and the greater the frequency of action potential produced

The inhibition of  activities of hydrolytic enzyme which metabolize cholinergic neurotransmitter leads to  continuous   excitatory activities  of cholinergic neurotransmitters   on  the receptors at the postsynaptic neuron, and the more  action potential

6 0
3 years ago
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