Answer:
Yes, it is a reasonable conclusion.
Explanation:
The long lasting gas that kept sunlight from penetrating the atmosphere was the key factor that promote a disturbance on the chain food. Without sunlight, plants could not produce their own energy, therefore they could not resist to this environment condition and die. That way, the herbivores could not feed and die as well. Also the carnivore could not survive because their supply of food of herbivores are not alive anymore. This scenario would promote a mass extinction of every dinosaur.
Answer:
True
Explanation:
Mental demands may be psychological or emotional and could lead to stress if not properly managed.
When stress takes its toll, it limits the individual's ability to perform efficiently on the job even with respect to tasks that are routinely carried out.
With the invent of technology, computers and other mobile devices may be used to reduce the need for memorization, as this involves a lot of mental energy.
Answer: Blood to kidney excretory tubes,
- Air tubes to blood
- Blood to air tubes.
The body contains several internal exchange systems. In the kidney, metabolic wastes move from BLOOD to KIDNEY EXCRETORY TUBES. In the lung, oxygen moves from AIR TUBES to BLOOD, while carbon dioxide moves from BLOOD to AIR TUBES.
Explanation: In the kidney, metabolic wastes move from the blood to the kidney excretory tubes via the affarent arteriole into the glomerulus of the bowman's capsule from where there will be ultrafiltration of the wastes from the blood will take place followed by selective reabsorption and tubular secretion inorder for urine to be formed.
In the lungs,oxygen moves from the air tubes which are the bronchial tubes then to the alveoli where gaseous exchange takes place then the oxygen moves to the blood. While carbondioxide moves from the blood to the air tubes from where there is exchange of gases then the carbondioxide is exhaled/expired from the lungs.
Answer: The correct statements are a, c, and e.
Explanation:
Oogenesis is the process by which ovum or female gamete is formed.
The process of oogenesis initiates in a female during her fetal stages. During embryonic stage, the oogonium (2n) or stem cells divide and mature into primary oocyte (2n) with the help of mitotic division.
Primary oocyte starts its meiotic division but gets arrested in prophase I stage before birth. After puberty, one oocyte resumes the division each month till menopause.
The primary oocyte completes the first meiotic division and produce secondary oocyte (n) and one polar body. The polar body is usually small in size and gets degenerated with time. It may or may not complete its meiosis II.
The first meiotic division is usually completed one day before ovulation (not just prior to ovulation).
Secondary oocyte is released during ovulation. It undergoes meiosis II but gets arrested in metaphase II. It does not complete its meiosis II until fertilized by a sperm.
Once, sperm penetrates the secondary oocyte, it resumes and completes its second division. It releases second polar body which also gets degenerated.
Thus, the correct statements are a, c, and e.
Answer:
C? Lipids are insoluble in water, are made of carbohydrates and fatty material
Explanation:
hope to get a Brainliest !
:)