Answer:A
Homozygous means both alleles are the same. This leaves A and B
Only choice A has heterozygous(different) alleles for offspring,so it is the right answer
Answer: A. cooled and hardened lava from volcanoes
C. sediments deposited by rivers and ocean currents
An accretion is a process in which new materials are added to a tectonic plate or landmass. This process causes the enlargement of the landmass. The materials being added includes sediments, lava from volcanic eruptions and other materials from other sources.
The process of accretion can enlarge the size of a continent along its edge. The new land comes from the cooled and hardened lava from volcanoes and other reason is sediments deposited by rivers and ocean currents.
4-c
5-b
6-a
7-d
8-c
hope this helps
Answer:
For part 1
The statement to correcting the student's misconception is that 'ACQUIRED TRAITS CANNOT BE INHERITED'
For part 2
The statement is True - Traits acquired during lifetime ARE NOT passed on through genes.
Explanation:
For part 1 and 2
The appearance of an organism depends on TWO FACTORS:
- inherited traits contained in genes, and
- environment
Therefore, the stretched neck on the giraffe is due to its adapting to the environment so is an ACQUIRED TRAIT, and would NOT alter the gene for "normal neck" present in its chromosome.
So, no matter what evolution recognizes that, 'ACQUIRED TRAITS CANNOT BE INHERITED' in the giraffe offsprings but traits contained only in the genes.
Answer:
False.
Explanation:
Neuron or nerve cell may be defined as the structural and functional unit of the nervous system. The stimulation of nerve helps in the transmission of messages in the body.
Th resting membrane potential of the plasma membrane is -70mV. The maintenance of negative membrane potential is due to the presence of potassium ions. The influx of potassium ions makes the membrane more negative and influx of sodium ions makes the membrane potential less negative.
Thus, the answer is false.
