BIOLOGY HIGH SCHOOL

Which non-specific defense mechanism is mismatched with its associated body structure or body fluid?

Answers

Answer 1
Answer:

Answer:

Mucociliary escalator- intestine

Explanation:

This is a complete mismatched. Simply because this  defense mechanism maintains the respiratory tract by sweeping  foreign substances inhaled with air molecules upwards in the trachea, to be swallowed or spit out .

It is composed of the Goblet cells and  Ciliated Epithelium.It is a defence mechanism which protects the lungs parenchyma from infection and  inflammation from foreign particles and microorganism. The mucus produced from the Goblet cells trapped theses particles,at the same time moistening the pathways,  while the cilliated epithelium beat in upward fashion to sweep them out through the trachea. To complete mucociliary clearance.

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Which stage is the dominant stage in gymnosperms?

Answers


Gymnosperm is  kind of a trachaeophyte, among angiosperms which are flower-bearing plants. Tracheophytes or generally ascular plants has the dominant stage on diploid generation in which the sporophyte comprises the main plant.
Tha dominate stage in gymnosperms is the "sporophyte stage". Plants such as vascular plants, which are non-flowering, which can reproduce by cones would be an example of the gymnosperm. These non-flowering vascular plants will reproduce sexually, like human.

Which was the first cell viewed by the light microscope

Answers

The first cell that was viewed by the light microscope was the cells in the cork. This happened on 1665 and the person responsible for the view of the very first cell under light microscope was Robert Hooke. He initially believed that cells were particularly unique only to plants.
Cells were first identified by Robert Hooke in cork, in the year 1665. He said that they looked quite similar to the cellula, contaned in the compartments. But, actually, they were dead cells of the cork. He used a microscope to observe these cells.

Which of the following could cause a habitat change?a. introduction of an invasive species
b. a wildfire
c. a mudslide
d. all of the above

Answers

Answer;

All of the above.


Introduction of an invasive species, wildfire or a mudslide may cause a habitat change.


Ecosystem.

A habitat is an ecological or an are in an ecosystem that is inhabited by specific species of animals, plants or types of organisms.

Habitat change or interference with a particular habitat interferes with the survival of organisms in the particular habitat. For example; Introduction of an invasive species to a habitat may have negative impacts, such that the species can cause harm to the new environment and interfere with the food chain. Wildfire on the other hand may lead to habitat loss, as it may burn down trees destroying the forest habit and organisms in it.

d. all of the above

The main effect of overpopulation on animals is extinction occurs due to the loss of habitat. The human population and the animal population will always be at odds with one another. The greater the number of people that there are, the more space they need to live. As a result, the people take over the animals' habitat and the less space the animals have, and the more their habitat is destroyed, the greater impact it has on the animals and their habitat. 

Which of the following is an example of a convergent plate boundary?a. magma from the asthenosphere moves into the litohsphere
b. a volcano erupts on a small island in the pacific ocean
c. a valley forms between two seafloor plates as they pull apart
d. two continental plates push against each other to form a mountain range

Answers

Answer:

d. two continental plates push against each other to form a mountain range

Explanation:

Converging plate boundaries occur when plates converge, that is, when they collide. The more dense plate dives over the less dense generating an area of intense magmatism. There are three types of convergence:

Convergence of two oceanic plates: When there is a collision between these two, the coldest, dense, ancient and thick plate, dives under the other, carrying part of the sediments accumulated on it. These sediments will fuse together with subduction ocean crust, generating intense volcanic activity, forming volcanic arcs or island arcs. Example: Mariana trenches, islands of Japan, etc.

Convergence of two continental plates: When there is a collision between two continental plates, the densest one dives over the other generating an intense metamorphism, that is, great mountain ranges. Example: Himalayan mountain range.

Convergence of a continental plate and an oceanic plate: When a collision occurs between these two plates, one oceanic and the other continental, it will cause the subduction of the continental plate, producing a continental magmatic arc or an abyssal pit at the edge of the continent. Example: Andes Mountains, Peru-Chile Fossa, respectively.

Accordingly, we can conclude that the letter D is the correct answer to your question.
An earthquake or,
D, two continental plates push against each other to form a mountain range. :)

Which one of the following discoveries involving DNA happened first? A. Avery discovered that DNA was responsible for storing and passing information through generations.
B. Griffith learned that a chemical changed harmless cells into harmful cells.
C. Chargaff discovered that base pairing was consistent in samples of DNA.
D. Hershey and Chase used bacteriophages to confirm that DNA was the genetic material in genes.

Answers

The answer is (A.) Avery discovered that DNA was responsible for storing and passing information through generations.

Avery is correct. DNA serves as a storage if genetic information and passed it through generations. The DNA strands replicate and each strand serves as a template for duplication during the cell division. Therefore, DNA is the reason for biological continuity.

How can the excessive use of fertilizers effect biodiversity if it is washed into the river

Answers

We know that fertilizier could promote the growth of the plant

When washed to the river, it will accelerate the growth of the water plant that exist within that area,
This occurrence will be not beneficial to the water animal because their habitat will be unnaturally blocked by these plants

hope this helps
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