BIOLOGY MIDDLE SCHOOL

Stete one loss of biodiversity in an ecosystem

Answers

Answer 1
Answer: Habitat destruction... Hope helps
Answer 2
Answer:

Answer:

Forest fires

Explanation:

Related Questions

Which occurs during winter in the Northern Hemisphere? A.The earth is closer to the sun.B.The earth's axis is tilted so that the Northern Hemisphere faces the sun.C.The earth's axis is tilted so that the Northern Hemisphere faces away from the sun.D.The earth is farther away from the sun.
What factors differentiate tropical wet climates from other climate regions?A:high temperatures and little precipitation B:low temperatures and no vegetation C:little precipitation and no vegetation D:high temperatures and heavy precipitation
How are prokaryotes useful to our world? Provide one example
Which is an example of a behavioral adaptation? A. A beaver marks it territory with its scent. B. An egret has long legs for wading in the mud. C. A hummingbird has a long bill to reach the flower's nectar. D. An arctic fox has thick fur on its feet for warmth.
What is cell differentiation and why is it important

A volcano that is fairly symmetrical and has both layers of lava and pyroclastic deposits is a _____.cinder cone volcano


pyroclastic volcano


composite cone volcano


shield volcano

Answers

Answer:

Composite cone volcano

Explanation:

Composite Cone Volcanoes are large volcanic buildings with long, generally conical shape, usually with a small crater on the summit and steep flanks, constructed by the interleaving of lava flows and pyroclastic products emitted by one or more conduits, which can be punctuated. over time by episodes of partial cone collapse, reconstruction and changes in conduit location.

Compound volcanoes are found in all regions of volcanism, but it is in plate convergence zones, where a tectonic plate subdows (plunges) toward the earth's mantle beneath another tectonic plate, that these volcanic buildings are most abundant. The magmatic expression of a converging plate margin environment is usually a series of sub-regularly spaced Compound Volcanoes, forming a sub-parallel volcanic arch to the tectonic fossa.

composite cone volcano

During the early stages of embryo development, dolphins have gill pouches. What does this mean?

Answers

Answer:

This means the dolphin is an vertebrate.

Explanation:

  • Gill pouches are the structures which are present in all vertebrates in the embryonic stages while it is present in fishes and amphibian in later life also.
  • It is thought to be the ancestral structures present in vertebrates. These pouches are then converted to lungs in the later life. For the water animals they are used for respiration.
  • They are actually the muscular walls containing respiratory lamellae on its inner side.
  • Hence in dolphin they are signs that dolphin is an vertebrate.

Answer:

Dolphins having gill pouches would mean that dolphin embryos go through a fish phase during development. Dolphins are closely related so dolphins should go through a fish phase.

Explanation:

Which of the following is true about differentiated cells?A.They have different DNA which allows them to perform different tasks.

B.They all contain the same DNA but they express different genes.

C.They can turn into whatever type of cell your body needs to ensure survival.

D.Each cell can perform various functions for maximum efficiency.

E.There are no more than 200 types in the body or else there would be too many to maintain.

Answers

Answer:

B

Explanation:

All cells contain the same DNA, but there regulators that control which genes are expressed in the cell

This plant cell has an angular shape, unlike an animal cell, which is rounded. What two plant cell features help give this cell its shape?A) cell wall and DNA
B) cell wall and large vacuole
C) cell membrane and cytoplasm
D) cell membrane and many vacuoles

Answers

Answer:

B) cell wall and large vacuole

Explanation:

A plant cell has tough and rigid cell wall made of cellulose. Presence of cell wall imparts the plant cells a definite angular shape. The angular shape is also the result of presence of large vacuole in the center of the plant cell. The vacuole is filled with water and electrolytes and serve to determine the shape of the plant cell.

You know that there is a difference between plant cells and animals cells. The plant cells have a cytoplasm while the animal cells do not. Therefore the answer must be C.

How does a hydrometer work?

Answers

A hydrometer is an instrument that measures the specific gravity (relative density) of liquids. The ratio of the density of the liquid to the density of water. A hydrometer is usually made of glass, and consists of a cylindrical stem and a bulb weighted with mercury or lead shot to make it float

The plasmamembrane / cell
Membrant is
described
as selectively
permeable
or semipler
meable, what
does this mean?

Answers

Answer:

It means that the cell membrane only lets some molecules/substances through the phospholipid bilayer.

Explanation:
Other Questions
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Which best describes a bird’s role as it eats seeds? parasite, predator, habitat, or niche?
True or False: The three parts of a nucleotide are:
When a fish loses water in its environment which process is responsible