Answer:
A. Multiple allele because a trait is controlled by three different genes
Explanation:
Multiple allele because a trait is controlled by three different genes
polygenic because the offspring have alleles from both parents
multiple allele because the offspring have alleles from both parents
polygenic because a trait is controlled by three different genes
Answer:
The alarm reaction stage
Explanation:
According to Selye, there are three stages of reaction to stress conditions. These are namely the alarm reaction stage, the resistance stage, and the exhaustion stage.
The alarm reaction stage is the first stage of stress reactions which includes perception of stress conditions. The hypothalamus sends signals to the associated glands and organs to prepare for the defensive responses.
The adrenal gland receives a signal to secrete the stress hormones while organs such as the liver are signaled to increase the glucose formation which in turn would serve as fuel during stress conditions.
Answer:
There are two types of planets. Terrestrial and Jovian planets. One thing is common in both of them.
Both the terrestrial and the Jovian planets possess a solid core, made mostly of metallic and/or rocky material.
Hope it helps
The energy needed by a system to initiate a process is called as the activation energy. It describes the minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction. Hope this answers the question.
Answer:
Medulla oblongata
Explanation:
Medulla oblongata is found at the lower half of the brainstem continuous with the spinal cord. The medulla oblongata controls the center of vomiting, vasomotor centers for regulating heart rate, cardiac, respiratory and blood pressure. Furthermore, Medulla oblongata connects the higher levels of the brain to the spinal cord and also controls autonomic functions.
