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prisoha [69]
3 years ago
8

What are characteristics of the phylum; Tracheophyta?

Biology
1 answer:
Aleksandr [31]3 years ago
4 0

Tracheophyte, any of the vascular plants, members of the division, or phylum, Tracheophyta, numbering some 260,000 species and including all of the conspicuous flora of the Earth today. Tracheophyte, meaning “tracheid plant,” refers to the water-conducting cells (called tracheids, or tracheary elements) that show spiral bands like those in the walls of the tracheae, or air tubes, of insects.

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Please help
butalik [34]

The right answer is: The antibodies mistakenly identify the cells as foreign material.

The role of an antibody is to recognize a foreign antigen in order to neutralize it. They can achieve this thanks to the great specificity of their paratope, which recognizes only a very precise part of the antigen: the epitope. As soon as an antibody recognizes an epitope, the B lymphocyte that codes for that specific antibody multiplies and matures in order to synthesize the same antibodies, useful in large quantities.

The phenomenon described in the question is an autoimmunity mediated by autoantibodies.

An autoantibody is an antibody produced by the immune system and directed against one or more proteins of the individual himself

Many autoimmune diseases are due to the presence of these autoantibodies, but the presence of autoantibodies is not necessarily synonymous with such a disease.

Some scientists say that they could have a beneficial role in cleaning up cell debris resulting from a disease.

The way in which these autoantibodies are produced, their precise role, and the reason why they decrease in individuals with certain diseases, are all issues that remain unresolved.

8 0
3 years ago
Read 2 more answers
As a population of a species increases within a territory, which of the following most likely also increases?
Sati [7]

Answer:

D) competition

Explanation:

They are going to be competing for their survival.

Hope this helps! :)

5 0
3 years ago
An organism possesses one copy of each allele type for a given gene. It is said to be __________.
Sveta_85 [38]

Answer:

Heterozygous for the gene

Explanation:

Alleles are the possible alternative forms of a gene. An organism having two identical alleles of a gene is said to be homozygous for that gene. On the other hand, an organism having two dissimilar alleles for a gene is heterozygous for that gene.

For example, let's suppose that I^A and I^B are the two alleles for ABO blood type in humans. Here, an individual with one copy of I^A and one copy of I^B would be heterozygous for ABO blood type. On the other hand, genotypes I^AI^A and I^BI^B are homozygous for the ABO blood type gene.

7 0
3 years ago
Draw three different food chains, from this food web, that contain an aphid.
serg [7]

The food chain that would include an aphid include:

  • Plant ---> Aphid ----> Birds
  • Plant ---> Aphid ----> Spiders
  • Plant ---> Aphid ----> Bat

<h3>What is a food chain?</h3>

A food chain is a chart that shows how food is transferred from producers to consumers.

Producers are plants as they are responsible for producing food from inorganic materials using the Sun's energy.

Consumers depend on plants and other organisms.

The food chain that would include an aphid include:

  • Plant ---> Aphid ----> Birds
  • Plant ---> Aphid ----> Spiders
  • Plant ---> Aphid ----> Bat

Learn more about food chain at: brainly.com/question/19066362

5 0
3 years ago
What are 5 different kinds of proteins made by ribosomes?
saw5 [17]
Different kinds of proteins that might be made by the ribosomes are structural, transport, antibodies, storage, contractile protein.


Further Explanation: RNA is Ribonucleic Acid different from DNA by one ribose and RNA is single-stranded. There are different forms of RNAs are present such as mRNA, tRNA, and rRNA.
6 0
3 years ago
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