Answer:
1. The gametophyte generation is haploid.
2. The embryo is diploid.
3. The megaspore is haploid.
4. The sporophyte generation is diploid.
Explanation:
1. Gametophyte- The gametophytic generation is the structure which produces gametes in the plant. Since the gametes are haploid, therefore, the gametophyte us considered the haploid.
2. Embryo- The embryo is formed after the fusion of fertilization when zygote develops, therefore, is considered diploid.
3. Megaspore- the big size spore which is formed from by the meiotic division of the megasporocyte, therefore, is considered haploid.
4. Sporophyte- the sporophyte generation develops from the embryo which is diploid therefore is considered diploid.
Answer:
Y = Aorta.
W = inferior Vena cavae.
Z= Pulmonary vein
X = Pulmonary organ.
Explanation:
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Answer:
Every amino acid in the chain changes, making the protein not functional
Explanation:
The gene, or sequence of DNA, ultimately determines the unique sequence of amino acids in each peptide chain. A change in nucleotide sequence of the gene's coding region may lead to a different amino acid being added to the growing polypeptide chain, causing a change in protein structure and therefore function.
Answer:
Water pollution
Explanation:
Polluted water can lead to crops dying and dehydrated, leading to desertification.
Answer:
The Endocrine System
Explanation:
The endocrine system comprises of organs and organs that produce and delivery hormones that influence the body distinctively and help control capacities including tissue homeostasis, development and improvement, generation, reaction to stress, and metabolism.
