Answer:
Immediately, the pathogen has been recognized:
Macrophages acts as the first line of defence by engulfing pathogens identified by antigens which will now present the antibody shape to a helper T cell.
The Helper T cells produce a signal to plasma and Memory B cells to yield antibodies that attach to the antigens. The cytotoxic cells that leads to cell death are activated by the helper T cells.
Antibodies helps to immobilize pathogen for macrophage to feed on.
if the pathogen comes back a 2nd time the memory cells helps in quick and efficient recovery by producing the specific B and T cells for the antigen.
Let H= No Hemophilia
h= Hemophilia
Now we will create the genotypes for the parents, it says that the mother is heterozygous which means she will carry the dominant and recessive allele, which would be Hh and it says the father is normal which would mean that he would be No Hemophilia dominant, so it would be HH
Cross the 2 created genotypes: Hh x HH
Now create your Punnett square using the 2 created genotypes above
H h
H HH Hh
H HH Hh
Looking at the Punnett square above, it appears that there’s a 2:2 ratio or a 50% chance of having Hemophilia and not having Hemophilia
So for a female child: 1/2 x 1/2= 1/4 of having a female with Hemophilia
The first one represents the female child having Hemophilia or not, that one can be obtained by simplifying the 2:2 ratio to a 1:1 ratio and the other one represents the chances of their child being a female. I assume that the steps above would be repeated again for the male child.
I hope that helps!
It shows relations among organisms within the field of cladistics (within Biology)
Centeral nervous system includes the brain and spinal cord while the peripheral includes nerves that branch out
Why are eugelnoids classified with plantlike protists?
a)They form pseudopods.
b) They contain chloroplasts and undergo photosynthesis.
c) They have a nucleus surrounded by a membrane.
d) They have a flagellum.
Answer:
They contain chloroplasts and undergo photosynthesis
Explanation:
Euglenoids are eukaryotic organisms originated long before plants and animals. They are made up of single cells, they are parasitic in nature and inhabit freely.
Plantlike protists on the other hand are unicellular algaes. They are photosynthetic which explains their plantlike nature. Plantlike protists also have a few multicellular algaes but they are not as dominant as the unicellular algaes. Plantlike protists look like plants but because they are unicellular, they lack leaves, stems and roots.
In conclusion, eugelnoids can be classified as plantlike because it contains chloroplasts that gives it the ability to photosynthesize.
