I think the answer is "steroid."
Answer:
The endosymbiotic event that brought chloroplast in eukaryotic cells happened after the lineage delivered.
Explanation:
The endosymbiotic theory says that the ancestral cell gains the ability of photosynthesis when it engulfed a photosynthetic bacteria and this bacteria remained in a symbiotic relationship with the ancestral cell and evolved as chloroplast in plants that can perform photosynthesis.
All the eukaryotes do not have this internal structure like chloroplast because this endosymbiotic event must be happened after the divergence of the lineage into different groups. Therefore plant cells have chloroplast and animals cell do not have.
Answer:
1. Burning of fossil fuels
2. Deforestation
3.Use of air conditions that result in the release of HFC's
4.planting of trees and rearing of animals also makes greenhouse effect worse
5. Use of refrigerators
Answer: Kidneys, intestine and skeletal system
Explanation:
Parathyroid hormone is the hormone that is responsible for regulation of the calcium levels in the extracellular fluid in the body.
It exerts influence over the skeletal system to reabsorb the calcium by the oesteoclasts. It causes the reabsorption of the calcium by the small intestine. It also prevents the excretion of calcium through urine by reabsorption by renal tubules.
The right answers are mentioned in the picture.
A base pair (bp) is the pairing of two nucleobases located on two complementary strands of DNA or RNA. This pairing is carried out by hydrogen bridges. There are four types of nucleic bases: A-T-C-G, these letters for Adenine, Thymine, Cytosine, and Guanine. A with T and C with G.
It is also necessary to take into account the antiparallel character of the DNA strands. If a strand is in the 5 '3' direction, its complete strand is in the 3 '5' direction.
