Answer:
cells have different shapes because they do different things
Explanation:
Each cell type has it's own role to play in helping our bodies work properly and their shapes help them to carry out these roles effectively
The kind of cross that the figure describes is a dihybrid cross.
There are different types of cross. In this case, we have a dihybrid one.
<h3>What is a dihybrid cross?</h3>
A dihybrid cross happens between two individuals, animals, or plants with two different pairs of genes.
In this case, the two sets of genes that crossed are:
<h3>Parent 1 gene pairs</h3>
- The h0m0zygous dominant RR
- The h0m0zygous dominant YY
The result is RY.
<h3 /><h3>Parent 2 gene pairs</h3>The h0mzygous recessive rr
- The h0mzygous recessive yy
The result is ry.
As a result, the cross is a dihybrid one because RY and ry, which are two heterozygous pairs that code for different traits, crossed.
RY x ry
Learn more about dihybrid and monohybrid cross here:
brainly.com/question/1185199
The second line of defense is nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals: Phagocytic cells ingest and destroy all microbes that pass into body tissues. For example macrophages are cells derived from monocytes.
Answer:
B. Lyme disease is caused by a bacterium and RSMF by a rickettsial agent.
Explanation: Rocky Mountain spotted fever is characterized by a sudden, unrelenting and quickly escalating fever and headache and a rash that usually starts on the wrists and ankles. In contrast, the fever and aches associated with Lyme disease will wax and wane, and the circular rash will go away without treatment.
One of the major components of cellular membranes is a class of molecules known as glycerophospholipids, which are synthesized from glycerol-3-phosphate (G3P) in a de novo pathway that initially produces phosphatidic acid (PA) and diacylglycerol (DAG) or cytidine diphosphate-DAG (CDP-DAG) (1–3
