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andrezito [222]
3 years ago
11

What is a helper t cell

Biology
1 answer:
Akimi4 [234]3 years ago
3 0

https://www.ncbi.nlm.nih.gov/books/NBK26827/ <em> think this article will help :)</em>

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Undigested food is pushed out the body through the ___.
ella [17]
The answer should be rectum.
4 0
3 years ago
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Learning Task 1: WORD UP
HACTEHA [7]

The words for the descriptions are food chain, trophic level, energy pyramid, high diversity, low diversity, etc. respectively.

<h3>Ecology</h3>
  • The feeding relationship that exists among organisms is termed the food chain.

  • Each step in the transfer of energy and matter in a community is termed the trophic level.

  • A community or group of living organisms that live in and interact with each other in a specific environment is termed an ecosystem.

  • A diagram that compares the energy used by producers, primary consumers, and other trophic levels is known as the energy pyramid.

  • An ecosystem with a high number of species is said to be of high diversity.

  • An ecosystem with a few prominent species and a low number of other species is said to be of low diversity.

  • Organisms that feed on and break down organic matter are said to be decomposers.

  • Organisms that can make their own food in the ecosystem are termed, producers.

  • Animals that feed on flesh are called carnivores.

  • A system of interlocking and interdependent food chains is called a food web.

More on ecology can be found here: brainly.com/question/13046612

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7 0
2 years ago
Coral reefs support more species than any other marine environment. The biodiversity in a coral reef is great, and scientists es
fomenos

Answer:

The artificial reef would decrease erosion of the coastline.

Explanation:

Artificial reefs are created in area where there is little uderwater topography or near established coral reefs to imitate or even substitute for natural coral reefs where they are absent or endangered due various factors which are mostly human in nature. The artificial serves to provide a habitat for marine organisms and ensure more biodiversity around the area by providing shelter from predation and surfaces for encrusting organisms such as corals and sponges to grow on. The growth of these lower level food chain organisms attract larger predator organisms thereby increasing the biodiversity in the area.

Artificial reefs are made from a variety of materials such as shipwrecks, construction debris, oil rigs, concrete, and any other man-made objects. Since reef structures protect shorelines against waves, artificial reefs would decrease the erosion of the coastline providing benefit to the people living along the coastline by preventing the destruction of beaches and coastal property,

3 0
3 years ago
Fossil seashells have been found in rock beds on land. what can you infer about how the area has changed
olga55 [171]
When we go to the beach one of the most exiting activities that we do is of course collect the best looking seashells. Now I have never seen seashells in another place other than the beach.

 My point in this entery that I have just mentioned is that where there is seeashells there is body of water. What those fossils mean is that that particular place whhere those seashells were once found means that maybe a very long whille back that place was onetime a body of water. Some natural dissaster came and that place doughtet and the water moved to some place else. 


My pleasure to help, over and out ;)
3 0
4 years ago
How to write 778,000,000 in scientific notation
Anestetic [448]

To answer the question what is 77800000 in scientific notation let’s recall how to convert 77800000 to scientific notation as detailed on our home page.

When you split the number 77800000 into a coefficient and a power of 10 you do get 77800000 in exponential form, but there is an indefinite number of possibilities.

As you probably want 77800000 in normalized scientific notation, the coefficient or significand of 77800000 in scientific notation must be in the interval [1,10[.

As there are many ways to express 77800000 in scientific notation, in this post we mean 77800000 in normalized scientific notation, unless stated otherwise. Therefore:

77800000 in scientific notation = 7.78 × 107.

8 0
3 years ago
Read 2 more answers
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