Although these spines may look like components of an exoskeleton at first glance, echinoderms do not have an exoskeleton. This is partly due to their symmetry and their spiny endoskeleton.
Answer:
A. Ceruminous
B. Sebaceous
C. Ceruminous
D. Ceruminous
E. Sebaceous
F. Sebaceous
Explanation:
Ceruminous glands are modified sweat glands located subcutaneously in the cartilaginous two-thirds of the external auditory canal. Ceruminous glands produce together with sebaceous glands the cerumen (i.e. earwax), which protects the ear canal against physical damage and/or microbial infections. On the other hand, sebaceous glands are glands in the skin that secrete sebum, an oily, waxy substance that lubricates the hair and skin of mammals. These glands (sebaceous) are affected by sex hormones like testosterone that enlarges the glands due to the increased cell proliferation rate and estradiol, which reduces the size of the glands due to the accelerated cell breakdown. Sebaceous glands are holocrine glands in which secretions are produced in the cytoplasm of the cells and then they are released by the rupture of the plasma membrane, while ceruminous glands are apocrine glands where the accumulated secretion is pinched off with a portion of the cell.
Answer:
The correct answer is B. Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Explanation:
Both photosynthesis and respiration are interconnected with each other because the product one process is utilized in another process.
In photosynthesis, plants use light energy to convert carbon dioxide and water into glucose and release oxygen.
6CO₂ + 6H₂O+ energy → C₆H₁₂O₆ + 6O₂
In respiration, the product of photosynthesis glucose and oxygen is converted into carbon dioxide, water, and energy.
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O+ energy
This shows that both processes are interrelated so the correct answer is B. Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Answer:
Because deciduous forests have fertile soil and a long growing season.
The growing season at those places can last up to 6 months. The soil is extremely fertile so naturally, deforestation can create problems.