Answer a)
The students should only have changed one variable to test for germination of seeds. They should have just changed the seed types and rest all factors like temp, pH should be kept constant for all of them.
Answer b)
The procedure could be changed as follows. The students should place three of each types of seeds in the petri dish. They should keep all the conditions like nutrients, temperature, pH constant for all the three dishes. After this observations should be made to check which seed germinates faster.
They both contain genetic codes based on sequences of bases.
Answer:
Such glands are classified as endocrine glands.
Explanation:
Endocrine glands also known as ductless glands produce and secretes hormones (chemical substances) directly into the bloodstream to regulate the activities of cells or organs. The endocrine glands make-up the endocrine system. This system influence reproduction, metabolism, growth and many other body functions. The endocrine glands include the hypothalamus, the pituitary, thyroid, ovaries, testes, pineal gland, parathyroids, pancreas and adrenal glands.
In contrast to the endocrine glands is the exocrine glands. The exocrine glands produce and secretes their hormones through ductal system onto epithelial surface. Example of exocrine glands are sebaceous glands of the skin, the pyloric and Cardia glands of the stomach, salivary glands etc.
Answer:
Which of the following structures are not involved in asexual reproduction? Gametes.
Explanation:
So option A. Have a great summer. This is the correct answer.
