Answer:
Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive.
The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.
The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.
The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.
Explanation:Goblet cell in your respiratory epithelium of trachea.
Frogs do<span> not drink like we </span>do<span>; they absorb </span>water directly<span> through their skin. so basically I don't think they get water in their mouths like we do. hoped i helped </span>
The answer is convergent evolution.
<span>A convergent evolution is a process of independent evolution of similar traits in unrelated species. These traits are called analogous structures which are similar in form or function but were not present in the last common ancestor of those species. For example, both birds and bats have wings. However, wings were not present in the last common ancestor of tetrapod to which they belong. They are only similar in function and develop in response to the similar way of life.</span>
Answer: A
Explanation:
Reproductive cells are haploid, meaning that there's only one copy of each chromosome. Somatic cells are diploid so there's 2 copies of each chromosomes.
if n = 18, then 2n = 36 so A is the answer
Answer:
Most genetic disease result from mutation that causes a gene to produce non functioning Protein.
Explanation:
Mutation deals with alteration of nucleotide sequence of the gene that encodes a functional protein product.
As a result of mutation the open reading frame of the mRNA sequence transcribed from that gene is being changed. Due to which the mutated gene can no longer form functional protein. This ultimately leads to production of non functional or truncated protein or disease causing protein.
For examle the Sickle cell anemia is caused due to the mutation in the beta chain of hemoglobin resulting in the accumulation of insoluble aggregates of HbS .