Question
1. Which of the following processes requires ATP?
A.osmosis
B. facilitated diffusion
C. moving down the concentration gradient
D. active transport
2. What is made in the nucleolus?
A. lipids
B. ATP
C. Ribosomal RNA
D. proteins
3. What is a function of Cilia?
A. help w cell division
B. provide structural support
C. move materials on the outside of the cells
D. provide sperm w motility
Answer:
1. d
2.D. proteins
3. D. provide sperm w motility
Explanation:
Gravity
Plant roots always grow downward because specialized cells in root caps detect and respond to gravity. This is an example of a tropism. A tropism is a turning toward or away from a stimulus in the environment. Growing toward gravity is called geotropism.
The troposphere is the atmospheric layer closest to the planet and contains the largest percentage (around 80%) of the mass of the total atmosphere.
Answer: As a fertilized human egg divides, it first becomes a solid ball of cells, the morula. ... The cells of the outer layer of the blastocyst eventually form part of the placenta. Inside the ball is a small clump of cells, the inner cell mass, that will form all the tissues in the body.
Explanation:
