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skelet666 [1.2K]
3 years ago
10

Which external stimulus is responsible for negative geotropism shown by

Biology
1 answer:
lys-0071 [83]3 years ago
4 0

Answer:

Tropism

Sunlight-phototropism

gravity-geotropism

IDK what what water is

Explanation:

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Newborn human babies with lesser body weight are prone to infections. Heavier babies are difficult to deliver through the narrow
Kipish [7]
The answer is (A) stabilizing selection. Stabilizing selection favors the average in a population. In this case, babies that are born at a normal body weight, or an average between the two extremes of underweight and large, tend to have more favorable outcomes.
4 0
3 years ago
Read 2 more answers
Describe the neural and renal mechanisms that control blood pressure.
Andrei [34K]

Answer:

The autonomic nervous system is the main neural regulator of circulation and blood pressure in the short term and beat by beat and exerts its function through various reflexes that regulate vasomotor tone, heart rate and cardiac output. At the renal level, the renin–angiotensin–aldosterone system is possibly the most important in the maintenance of arterial homeostasis.

Explanation:

Blood pressure is regulated by a series of interrelated autonomic systems and humoral reflexes, which continually adjust the determining elements of the system (heart rate, stroke volume, total peripheral resistance and circulating volume).The effective circulating volume is controlled by a series of reflex systems, which obtain information about the perfusion pressure (baroreceptors in the carotid bulb and aortic arch), plasma osmolarity (hypothalamus) and urinary sodium (distal tubule).The kidney has its own self-regulatory mechanisms. The reduction in renal blood flow is detected at the level of the mesangial cells of the juxtaglomerular apparatus, starting the renin-angiotensin system. The increase in angiotensin II produces on the one hand local vasoconstriction, and on the other hand stimulates the production of aldosterone by the adrenal cortex with the consequent tubular reabsorption of sodium and water.Antidiuretic hormone or vasopressin (released from the hypothalamus by stimulation of arterial baroreceptors and also by stimulation of angiotensin II) also acts at the renal level, which acts as a powerful and water-saving vasoconstrictor in the distal tubule.

5 0
3 years ago
Which macromolecule is involved in how hemophilia is passed from parents to their children
Serga [27]

Answer:

chromosomes

Explanation:

chromosomes which consist of genes which consist of DNA can pass on traits from parent to child.

it basically works by depending on the gender of the child it can inherit certain traits from its parents

so say the hemophilia is an XX being from the mom and to get the mutation you would need the X that has the mutation and either an X or Y from the dad.

I dont know if hemophilia affects X or Y but that is how the mutation would be passed on.

6 0
3 years ago
Lysosomrs can be compared to the recycling and garbage centers of a city. How can this comparison be justified
IgorLugansk [536]
Lysosomes use a degenerative enzyme to eliminate un necessary materials from the cell and recycle parts that can be re used, much like a recycling centers eliminate waste from cities and find ways to reuse it.
4 0
3 years ago
Most atp in cellular respiration is regenerated in substrate level phosphorylation. most atp in cellular respiration is regenera
algol [13]

Answer: False

In cellular respiration, <span>organic molecules are break down and it uses an electron transport chain for the production of ATP through oxidative phosphorylation. Here, the hydrogen ions are pumped into the mitochondrial intermembrane space and they flow back through ATP synthase that produces most of the ATP associated with cellular respiration.</span><span>


</span>

5 0
3 years ago
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