List eight major classes of primary outdoor pollutants

1 answer:

7 0

Outdoor air pollution is a complex mixture of several pollutants, the common sources of outdoor pollution are emissions caused by combustion processes from motor vehicles, solid fuel burning and industry.
They major classes of outdoor pollutants include;
Carbon monoxide; carbon dioxide, sulfur dioxide, nitrogen oxides, VOC's, SPM's, photochemical oxidants, ozone and PANs.

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Which statement about neural reflex arcs is incorrect? Which statement about neural reflex arcs is incorrect? Their function is

olchik [2.2K]

Answer:

The incorrect statement is that the neural reflex arc becomes slow by the hormones involved.

Explanation:

A neural pathway that controls a reflex is known as a reflex arc. In a reflex arc, the sensory neuron transmits a signal to the interneuron and stimulates it. The interneuron then transmits or passes the signal to the next neuron, that is, a motor neuron. The motor neuron associates with the interneurons in the spinal cord, which transmits messages from the CNS to the body. Thus, a reflex arc comprises the elements, that is, the receptor, integrating center, and the effector. Their main activity is to protect the body from external events.

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This type of reproduction does not involve gametes and produces an offspring identical to its parent: __________________________

Dafna1 [17]

Believe it is called asexual reproduction

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3 years ago

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Which statement is the best physical description of a gene? A chromosome is a segment of a gene. Genes carry many chromosomes. A

Sergio039 [100]

Answer:

The correct option is C. A gene is a specific segment of DNA on a chromosome

Explanation:

Option A is false because a gene is a segment on a chromosome.

Option B is false because a chromosome carries many genes.

Option D is false because a gene carries a segment of DNA, not all of the DNA.

Option C is correct because there are many genes present on a single chromosome. Each gene carries a segment of DNA. The position of a gene on the chromosome is known as its loci.

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3 years ago

Which best describes an advantage of this type of reproduction?

nasty-shy [4]

I think answer is D- because when the cell breaks in half it’s not recreating it’s full self and also preventing mutations from happening

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2 years ago

Place these developmental milestones in the correct order. (1 being the first milestone to happen) baby is born different cell l

GenaCL600 [577]

Answer:

The correct order in which development occurs from fertilization of the egg is:

Sperm fertilizes egg .
Cell divides.
Implants size and weight increase greatly.
Different cell layers form .
Organs and limbs form embryo.
Heartbeat/movements detected .
Movements strengthened .
Organ systems mature .
Baby is born.

Explanation:

Sperm fertilizes egg: it is the process called fertilization, which consists of the union of the paternal gametes to originate the zygote.
Cell divides: Once the zygote has formed, it undergoes successive divisions by mitosis, to originate the different structures.
Implants size and weight increase greatly: successive divisions cause the implanted zygote to progressively increase in size.
Different cell layers form: consists of the formation of the embryonic layers -ectoderm, mesoderm and endoderm- from which the tissues and organs of the embryo will be formed.
Organs and limbs form embryo: from the three embryonic leaves the different apparatuses and sisythems of the embryo are formed.
Heartbeat / movements detected: Initiates the function of organs such as the heart and extremities.
Movements strengthened: movements in the embryo are more continuous and defined.
Organ systems mature: the nervous, cardiovascular, digestive and respiratory systems, among others, are suitable for birth.
Baby is born.

When the baby is able to survive outside the womb, birth occurs.

Learn more:

Development of the offspring brainly.com/question/465851

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3 years ago