Sometimes the reflex response is diminished or absent- a phenomenon termed hyporeflexia. Do you think hyporeflexia would be caused by disorders of the central nervous system or the peripheral nervous system? Explain your reasoning.

Answers

Answer 1
Answer:

Answer:

The functions of the skeletal muscles are affected by the CNS via the two sets of neurons, that is, lower motor neuron and upper motor neurons. The PNS comprises sensory neurons and motor neurons. The lower motor neuron is monitored by the upper motor neuron.  

Hyporeflexia occurs because of the dysfunction of the lower motor neuron or its lesion. The lower motor neurons refer to the neurons, which innervate the skeletal muscles directly. Destruction to the central nervous system leads to hyper reflexes and destruction to the peripheral nervous system results in hyporeflexia.  


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Why does magma form at mid-ocean ridges?

Answers

The plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. The magma then emerges as lava from the boundary and cools, creating a new crust.

An adolescent growth spurt occurs only in boys.
a. True
b. False

Answers

The correct answer is B. False

Explanation:

In development, a growth spurt refers to a period of time in which individuals experience rapid growth or development. In the case of an adolescent growth spurt, this is a natural process that occurs to all individuals including boys and girls during puberty. This takes place because during adolescence the hormone levels change and this leads to rapid growth as well as development or maturation of bones, muscle and the sexual or reproductive system. According to this, it is false an adolescent growth spurt occurs only in boys because this is a natural process that occurs on both girls and boys.

The answer is false
Both adolescence males and females have growth spurts

Humans originated in Africa about 7 million years ago: if life on earth started 3.5bya ago and represented 24 hours from then to today, how many minutes of these 24 hours would be devoted to this 24-hour clocka) since the first humans showed up?
b) since Humans showed up 300,000 ya?

Answers

I don’t quite understand the answers that you’ve provided to choose from, but if we are comparing those millions of years to a 24 hour clock, then humans have only been around for 2.88 minutes of out the entirety of life on Earth.
Sorry if this didn’t answer your question, but I hope this somehow helps.

Describe nutrition in insect​

Answers

Answer:

Lots of insects eat plants, some insects eat other insects, and some even drink blood. Many insects eat nectar from plants. And some insects will eat whatever scraps of food you leave lying around. A few insects, such as mayflies and some moths, never eat.

Explanation:

Molecularly speaking, when you look at a tree, what are you actually look at?

Answers

Answer:

A heterogeneous mixture of water, carbon dioxide, oxygen, glucose molecules  

Final answer:

At a molecular level, looking at a tree involves observing atoms and molecules that combine to form more complex structures such as cells, tissues, and organs. These microscopic structures support the tree's growth, function, and ability to adapt to its environment. Thus, a tree represents various levels of biological organization.

Explanation:

Molecularly speaking, when you look at a tree you're witnessing an array of complex structures that form the basis for life. This includes atoms, the smallest and most fundamental units of matter that form molecules. Many biologically important molecules in the tree are macromolecules, large molecules formed by polymerization where smaller units called monomers combine. These molecules are significant components of the tree's cells which are the fundamental building units of life.

Additionally, what you're also seeing are elements of the tree's structure including tissues and organs that are formed by these cells. For instance, the tree's leaves contain specialized cells like guard cells which help regulate gas exchange. On a larger scale, these molecules and cells also contribute to the overall health, function, and resilience of the tree in its ecosystem.

Therefore, when you look at a tree, you're essentially witnessing numerous levels of biological organization. These range from the level of molecules and cells up through tissues and organs, to the entire tree or organism itself. This allows the tree to grow, function, and adapt to its environment.

Learn more about Molecular Structure of a Tree here:

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Of the following groups which contains the greatest number of species? crustaceans
mammals
plants
insects

Answers

Answer: Insects

Explanation:

The Arthropoda is the largest phylum in the animal kingdom because about 85 percent of all known species are arthropods, and insects alone make up about 75 percent of known species.

Arthropods are divided into the following classes:

- Crustaceans

- Insects

- Arachnids

- Myriapods

Thus, insects contains the greatest number of species

Answer: Insects.

Explanation:

Insects are largest group of invertebrates animal. They belong to phylum arthropoda and the are about 1 million or more. Insects have a pair of antenna, their body is cover with exoskeleton, they have three pairs of leg, their body is divided Into head , thorax and abdomen. Their eyes are bulged. They have pairs of wings. Examples are ants, bees, termites, flies, butterfly, grasshopper e.t.c.