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IrinaK [193]
3 years ago
5

When Jenner developed the first vaccine he was using the observation of milk maids who_______

Biology
1 answer:
Lynna [10]3 years ago
8 0
Caught cow pox from cows
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Can cell checkpoints fail in mitosis and meiosis​
elixir [45]

Answer:

WHAT HAPPENS IF A CELL DOES NOT PASS THE MITOSIS CHECKPOINT? THE CELLS LINE UP ANY IMPROPELY ALIGNED CHROMOSOMES AND CORRECTLY ATTACHES ANY UNATTACHED OR IMPROPERLY ATTACHED CHROMOSOMES TO THE SPINDLE. ... THEY CAN TRIGGER THE NEXT PHASE OF THE CELL CYCLE OR THEY CAN DELAY THE NEXT PHASE OF THE CELL CYCLE.

Explanation:

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2 years ago
Why is the origin of the universe still a question
shusha [124]

because different scientists have different theories or explainatons on how the universe came into being so that's why the origin of the universe is still a question

hope this helps

4 0
3 years ago
Circulatory systems compensate for _____.
Ainat [17]

Answer:

The slow rate at which diffusion occurs over large distances.

Explanation:

Circulatory system may be defined as one of the most important system of the body that contains arteries and veins. Two main types of circulatory system are open circulatory system and closed circulatory system.

The blood flow all over the body to each cell with the help of the circulatory system. Arteries carry oxygenated blood and veins carry deoxygenated blood in the body. The circulatory system increases the rate of blood flow as diffusion do not allow the transport at long distances.

Thus, the correct answer is option (c).

8 0
3 years ago
Identify the pregnancy prevention method(s) that prevent the release of an egg, thickens the cervical mucus and reduces the buil
Darya [45]
The correct answers are a. vaginal ring and c. oral contraceptives.

The vaginal ring is a soft, plastic ring that releases a continuous dose of the hormones oestrogen and progestogen into the bloodstream and prevents pregnancy. Oral contraceptives are also drugs for preventing pregnacy and also contain combinations of the hormones estrogen and progestin )or progestin alone=. Estrogen and progestin inhibit the release of the hormones luteinizing hormone (LH) and follicle stimulating hormone (FSH) which have a role in the ovulation.

8 0
3 years ago
A volcanic island rises from the sea. The lava from eruptions cools and becomes
barxatty [35]

Answer:

Primary Succession

Explanation:

Because i did it

8 0
3 years ago
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