Respiration releases carbon dioxide, the molecule needed for photosynthesis.

1 answer:

8 0

True.
In aerobic respiration , there is complete oxidation of carbohydrates in the presence of oxygen producing carbon dioxide, water and energy in the form of Adenosine Triphosphate(ATP)

And in anaerobic respiration, substances are broken in complete absence of oxygen, thus, there is incomplete degradation of glucose with the release of C02, other organic compounds and energy

Therefore, the release of CO2 in the air, helps the plants to undergo photosynthesis to make food

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Explanation:

Puberty is the transition phase in which somatic growth and sexual development are completed, with the consequent acquisition of reproductive capacity. Estradiol is the most potent and abundant estrogen, it is secreted by the ovarian follicle granulosa cells and also by the corpus luteum. testosterone is the hormone responsible for the emergence of secondary sexual characteristics, sperm production and increased sexual drive, aggression, height growth and physical strength, among others. There are many differences in body composition between both sexes, and those differences are also present in the hormones concentration. While estradiol is 8 times greater after puberty in females, this number is 20 times greatern in males, when we are talking about testosterone

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Soil erosion can be slowed by ____.

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What is an advantage of using nuclear power?

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Large nameplate capacity per plant, typically around 1 GW.
Typically 90% capacity factor, maximizing output from the nameplate capacity.
Small fuel transportation volumes as the fissionable material just isn't that big or heavy compared to equivalent fossil fuel BTU sources.
Low CO2 per MWH on a full life cycle basis. ~12 grams which is only slightly more than wind / solar.
This is a reason nuclear is a much better source for one of the major pressing problems of today than fossil fuels: global warming.No particulate matter pollution.No sulfur dioxide or other chemical pollution.Low fatalities per TWH.
Nuclear is higher than renewables according to current statistics, but much, much lower than fossil fuel generation.

Nuclear power generates lots of clean, stable energy.

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Check all that apply as characteristics of myelinated axons. Check All That Apply Myelinated axons transmit nerve impulses via c

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Answer:

Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.

Myelinated axons are more energy efficient than unmyelinated axons.

Explanation:

Neurons are cells that specialize in transmitting messages to each other using a type of electrical signal. These signals carry information from outside your body to the brain, while others are the instructions for the various organs, glands and muscles to carry out functions.

Neurons receive these signals from other neighboring neurons through their dendrites. The signal then travels to the soma of the neuron, which is the main body of the cell, and finally travels down the axon to the synapse (space between the end of a neuron and another cell). The axon is a neuronal extension through which the electrical signal travels, extending from the soma to other neurons.

There may be layers of myelin, which consist of a layer of fat, covering the axons and where they have the function of acting as insulators to help keep the electrical signal inside the cell, which makes it move faster increasing the speed of transmission of the nerve impulse.

1) Myelinated axons transmit nerve impulses via continuous conduction. FALSE. In the axon, nodes of Ranvier are found at regular intervals along the length of the axon in the myelin sheath that surrounds it. These are small spaces that expose the axon membrane to the extracellular fluid and serve to allow the nerve impulse to travel faster, in a jumping manner and with less chance of error.

2) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. FALSE. In an unmyelinated axon, the movement of voltage across the membrane is due to ion flux that is limited by the time it takes for sodium ions to diffuse into the axon. Myelinated axons conduct faster because they are shorter than unmyelinated axons. In the latter, transmission is continuous but slower.

3) Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter. TRUE. The action potential conduction jumps from node to node, thereby they need fewer voltage-gated channels. Unmyelinated axons need voltage-gated channels in along the entire axon.

4) Myelinated axons are more energy efficient than unmyelinated axons. TRUE. The rate at which sodium input through one node can depolarize the axon at the next node is related to the current and capacitance across the membrane. Myelinated axons have faster action potential conduction because it jumps from node to node, thereby they use less energy because they don't have to travel the entire length.

5) Myelinated axons would be unaffected by diseases that attack the CNS. FALSE. For example, Multiple sclerosis (MS) is a demyelinating disease of the CNS in which the immune system attacks the myelin sheath or the cells.

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