Answer:
A- brain + cranial nerves (I'm assuming since they are related)
B- Radial nerve
Explanation:
The cranial nerves are pairs of nerves that connect your brain to different parts of your head, neck, and trunk. There are 12 of them, each named for their function or structure. Their uses are mainly categorized as Sensory and Motor. Sensory nerves are involved with your senses, such as smell, hearing, and touch. Motor nerves control the movement and function of muscles or glands.
The radial nerve controls movement of the triceps muscle, which is located at the back of the upper arm and is responsible for extending the wrist and fingers. It also controls sensation in part of the hand.
The alarm stage<span>, the resistance </span>stage<span>, and the exhaustion </span>stage<span>. ... The changes that occur in the alarm </span>stage<span> prepare ypu to either "fight" the stressor or "take flight" and escape. Thus, this inital </span>reaction<span> of the</span>body<span> to </span>stress<span> is called the fight-or-flight </span>response<span>.</span>
What phenotypic ratio would you expect as a result of a test cross between a dihybrid organism and one that is homozygous recessive for alleles at two independent loci?
a. 3:1
b. 9:3:3:1
c. 1:1:1:1
d. 1:2:1
e. 9:4:2:1
Answer:
c. 1:1:1:1
Explanation:
When a heterozygous individual for two genes is test crossed with a double homozygous recessive individual, the progeny is obtained in 1:1:1:1 phenotypic ratio. This occurs as the heterozygous dominant individual forms four types of gametes in 1:1:1:1 ratio while the homozygous recessive individual would form only one type of gamete having one recessive allele for each gene.
For example, a test cross between TtRr (tall and red) and ttrr (short and white) would produce a progeny in following ratio=
1 tall, red: 1 tall, white: 1 short, red: 1 short, white
Here, T= tall, t= short, R= red, r= white
A resting neuron is negatively charged
Mollusks
Mollusks is the group of invertebrates that made up the majority of the Marine species. Their bodies tend to not divided into segments like other organisms.
