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larisa86 [58]
3 years ago
13

QUESTION 47

Biology
1 answer:
adelina 88 [10]3 years ago
4 0

Answer: Nucleus

Explanation: The word hereditary refers to genes that are passed on from one generation to the next. All genetic information is stored inside the nucleus of cells in the form of DNA.

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2. Which organelle acts like the “brain” or control center of the cell?
KiRa [710]
The organelle that acts like the brain or the control center in the cell in the nucleus.

Hope this helps!!! :D
3 0
3 years ago
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How does nuclei's material change during mitosis?
vagabundo [1.1K]
A unique feature of the nucleus is that it disassembles and re-forms each time most cells divide. At the beginning of mitosis, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down, resulting in the release of most of the contents of the nucleus into the cytoplasm.
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3 years ago
WIILL BE MARKED BRAINLIEST!!!
Phantasy [73]

Answer: Lungs

Explanation:

Examples of endocrine organs include the pancreas, which produces the hormones insulin and glucagon to regulate blood-glucose levels, the adrenal glands, which produce hormones such as epinephrine and norepinephrine that regulate responses to stress, and the thyroid gland, which produces thyroid hormones that regulate to the Lungs.

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3 years ago
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In pea plants, T is the allele for tall plants, while t is the allele for dwarf plants. If you have a tall plant, demonstrate wi
bagirrra123 [75]

Answer:

Explanation:since T- represent tallness

t-dwarf plant

TT- means the plant is homozygous tall i.e the allele T is the same 100% talk

Tt- means the plant is heterozygote tall which implied that though this plant express tallness its still have gene for shortness hidden in its cell and if crossed with a plant that is dwarf some of the offspring will be dwarf.

From the test cross all the gametes are heterozyote - Tt Tt Tt Tt

4 0
3 years ago
Make a table summarising the main components of tobacco smoke and their effects on the human body.​
Delicious77 [7]

Answer: Some of the components in tobacco smoke include:

Nicotine (the addictive drug that produces the effects in the brain that people are looking for)

Hydrogen cyanide.

Formaldehyde.

Lead.

Arsenic.

Ammonia.

Radioactive elements, such as polonium-210

Benzene.

Explanation: Highly damaging components of tobacco smoke include:

tar – is the word for the solid particles suspended in tobacco smoke. The particles contain chemicals, including cancer-causing substances (carcinogens). Tar is sticky and brown, and stains teeth, fingernails and lung tissue

carbon monoxide – is a poisonous gas. It is odourless and colourless and, in large doses, quickly causes death because it takes the place of oxygen in the blood. In people who smoke, the carbon monoxide in their blood makes it harder for oxygen to get to their organs and muscles

oxidizing chemicals – are highly reactive chemicals that can damage the heart muscles and blood vessels of people who smoke. They react with cholesterol, leading to the build-up of fatty material on artery walls. Their actions lead to heart disease, stroke and blood vessel disease

metals – tobacco smoke contains several metals that cause cancer, including arsenic, beryllium, cadmium, chromium, cobalt, lead and nickel

radioactive compounds – tobacco smoke contains radioactive compounds that are known to be carcinogenic.

The effects of tobacco smoke on the body include:

raised blood pressure and heart rate

constriction (tightening) of blood vessels in the skin, resulting in a drop in skin temperature

less oxygen carried by the blood during exercise

‘stickier’ blood, which is more prone to clotting

damage to the lining of the arteries, which is thought to be a contributing factor to atherosclerosis (the build-up of fatty deposits on the artery walls)

reduced blood flow to extremities (fingers and toes)

increased risk of stroke and heart attack due to blockages of the blood supply.

3 0
2 years ago
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