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2 years ago

Which of the following functions do roots perform?

Biology

2 answers:

bixtya [17]2 years ago

8 0

Answer: A. absorb water and nutrients from the soil

Explanation:

In vascular plants, the roots is the organ which typically lies below the under the surface of earth crust. But roots can also be aerial that means there are roots which grows above the ground or typically above the surface of water. The roots perform three main functions in plants that are:

1. They anchor the plant body to the ground, and provides it a support.

2. They absorbs and conducts water and minerals from the soil.

3. They performs vegetative reproduction.

On the basis of the above description, A. absorb water and nutrients from the soil. is the correct option.

givi [52]2 years ago

6 0

I think the correct answer from the choices listed above is option A. The function that roots perform is to absorb water and nutrients from the soil. It is from the soil that plants obtain the needed amount of water and nutrients and without the roots these will die because it is through the roots these substances are able to go in the plant.

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He Galapagos Islands contain thirteen species of finches. Four are seen here. It is believed that all of these species had one c

Scilla [17]

Answer:

they are not able to interbreed

Explanation:

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2 years ago

During apoptosis, which cellular organelle does the work of breaking up the nucleus and causing the cell to die?

Neko [114]

Answer:

B) Mitochondrion

Explanation:

Mitochondria play a pivotal role in apoptosis. Apoptosis or programmed cell death can be initiated by both intracellular and extracellular signals. Mitochondria are responsible for mediating apoptosis initiated by intracellular signals. These are membrane-bound, rod-shaped organelles found in most eukaryotic organisms.

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1 year ago

9. Describe the function of the:<br> a. stomach<br> b. small intestine<br> c. large intestine

tiny-mole [99]

Answer:

The stomach helps to store food temporarily. It also secretes gastric juices that digest food.

Most of the digestive process (digestion and absorption of food) takes place in the small intestine.

The funtions of large intestine are temporary storage of undigested and unabsorbed food, reabsorption of water and minerals, elimination of waste products (faeces) through the anus, helps in antibody production and acid reduction, maintaining a large population of bacteria living inside the intestine which produce gas, vitamin K etc.

Explanation:

The food that entered the stomach mixes with the gastric juices (hydrochloric acid and pepsin ) and get broken down into smaller components.

The partly digested food is then passed into the small intestine where the food is mixed with digestive juices from the pancreas, liver, and intestine and broke it down into smaller molecules (nutrients) which are absorbed into the blood in the small intestine. The inner wall of small intestine has finger-like projections called villi, which contains a network of capillaries and lymphatic vessels. Nutrients are transported to these capillaries and lymphatic vessels from the villi by diffusion. This nutrient rich blood is then pumped through the circulatory system to the other organs.

The undigested and unabsorbed food passes into the large intestine where water and some minerals are reabsorbed back into the blood. The remaining waste products are eliminated through the anus (defecation). The large population of bacteria living inside the large intestine digest some material and creates gas, vitamin K etc. It has some role in antibody production and acid reduction also.

5 0

2 years ago

In living things, dehydration synthesis reactions result in the formation of A) polymers. B) monomers. C) carbon atoms. D) monos

Naily [24]

I believe the answer is A. Not 100% sure though

4 0

2 years ago

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Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homo

fomenos

Answer:

False

Explanation:

Gregor Mendel, who was referred to as the FATHER OF GENETICS, discovered the principles that governs heredity. One of those principles which he called LAW OF INDEPENDENT ASSORTMENT states that the alleles of a gene randomly segregates into gametes independently of the alleles of another gene. This means that during gamete formation (meiosis), the separation of the alleles of one gene doesn't affect the separation of the alleles of another gene.

Mendel discovered this principle when he worked with two genes that was responsible for two distinct characters. Hence, in a cell that contains two genes responsible for two different characters in the organism, independent assortment will always occur during gamete formation. Although, in an organism that is homozygous for both traits (AABB or aabb), only one type of allelic combination will be produced in the gamete. However, the alleles will still randomly align and separate independently of one another during Metaphase and Anaphase stages of meiosis.

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2 years ago

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