Answer:
Seeds are the result of plant reproduction. ... When pollen lands on the flower's stigma, it germinates and forms a pollen tube, which then quickly grows towards the plant's ovary. Once it finds an ovule, the pollen tube bursts to release sperm cells, which fertilize the ovule and initiate seed formation.
Explanation:
Growth is defined as the irreversible increase in the dry mass of an organism. It is brought about by an increase in cell size or number. In plants, growth occurs throughout the lifetime of the plant. ... Plants have extensive powers of regeneration. They can replace lost or damaged tissue.
Answer:
Thylakoids, stroma
Explanation:
The interconnected flattened sacs within the inner membrane of the chloroplast are called thylakoid. Many thylakoids are come together and get arranges in a stack called a granum.
Thylakoid contains chlorophyll pigment and is responsible for absorbing the sunlight and conducting light reaction. These thylakoids or grana are suspended in a liquid called the stroma.
The stroma contains the enzymes which are required in the light-dependent reaction. It contains DNA, ribosome, starch. The synthesis of organic molecules occurs in the stroma.
Answer:
D. The genotype and the environment both affect phenotype.
Explanation:
Phenotype is the outward expression or make up of an organism. The phenotype is simple the physical outlook of an organism. It is as a result of the combination of two major factors which are the genetic make up(genotype) and the environment. When both combines, an organism's pheontype is built and produced.
If the environment is lacking, a gene might not successfully express itself in an organism. Also, an organism might have the right environment but the gene is lacking.
The sun! It's solar radiation heats our planet, gives us light, and sustains life.
