They're called Enzyme. They're made up of proteins. They act as a biological catalysts that can speed up chemical reaction. They have an active site that certain substrates binds into it and form a product. Enzyme works under optimum pH and temperature and the active sites are not changed unless denatured.
The answer is D The ureter connects the kidney to the urinary bladder
THE ANS IS:
THE OUTER MEMBRANE IS COATED IN RIBOSOMES .
WELL U REPEATED AN OPTION TWICE BUT HERE'S THE ANS
Answer:
1) Homologous chromosomes are chromosomes that are the same in size and shape and control the same characteristics; occur in pairs in higher animals and plants
2) Internal fertilization is a mating pattern in which the male and female come close together, the male introduces the sperm into the body of the female, and fertilization occurs. It is practiced by mammals like goat, sheep etc
3) Pollination is the transfer of pollen from male to female cones in gymnosperms, or from anther to stigma in flowering plants. It is effected by insects, birds, bats and the wind.
4) Zygote is the result of fertilization in which two gametes have fused together; often simply called a fertilized egg.