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3 years ago

A bird is flying over a field. What will most likely happen if a toxin causes the

Biology

1 answer:

myrzilka [38]3 years ago

3 0

Answer:

B. The bird will stop flying because it will quickly use up its remaining

energy.

Explanation:

This is because the mitochondria is known as the power house of cells. Oxidative phosphorylation takes place in this organelle and it involves the conversion of ADP to ATP through the hydrogen ions(protons).

When the hydrogen ion channel is blocked, energy production in cells stop.

This is why the bird will stop flying as it would have used up its remaining energy and won’t have a new one to use to continue flying.

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Why would prokaryotic cells be considered a simple cell when compared to eukaryotic cell?

Ede4ka [16]

Answer:

Prokaryotic cells are more simple and smaller than eukaryotic cells. Prokaryotic cells are structurally more simple because of their small size. It's also defined as the smaller a cell size, the greater is its surface to volume ratio (means surface area of a cell compared to its volume).

In smaller prokaryotic cells, a large surface to volume ratio is present. It means that nutrients can rapidly and easily reach any interior part of the cell.

The large eukaryotic cell have limited surface area as compared to its volume it means that nutrients cannot rapidly reach to all interior parts of the cell, because of that eukaryotic cells are more complex than prokaryotic cells, and they require specialized internal organelles to carry out processes like provide energy, metabolism and transport necessary chemicals throughout the cell.

3 0

3 years ago

How are the 3 stages of cell division similar to how new animals are created?

Vera_Pavlovna [14]

Answer:

Cell divison is defined as the process in which a parent cell split into two or more daughter cells. There are three stages of cell division that includes interphase, mitosis/meiosis and cytokinesis.

In the interphase the proteins, enzymes and cell organelles are formed and at the end of this phase single strand chromosome becomes a double strand carrying genes.

In the meiosis (in sexual reproduction) or mitosis (asexual reproduction) phase, divison of nucleus takes place. Meiosis gives rise to geneticaly different cells due to crossing over while mitosis leads to identical cells .

Cytokinesis occurs cocurrently after meiosis or mitosis in which cytoplasm of a parental cell divides into two daughter cells each with identical chromatin.

Creation of new animals are also undergo these 3 stages of cell division that is interphase, meiosis (eukaryotes)/mitosis (prokaryotes) and cytokinesis. Majority of animals (eukaryotes) undergo meiosis phase because their mode of reproduction sexual and have genetic variation due to crossing over of chromosomes and produces 4 daughter cells at the end cell division.

Hence, the 3 stages of cell division is similar to craetion of new animals.

5 0

3 years ago

What is d inner layer of a mollusca shell called?

Sedaia [141]

This is called the nacreous layer, the pearly layer.

7 0

3 years ago

Question 15

scoray [572]

C is the answer..........

4 0

2 years ago

Suggest appropriate sources of food to meet their requirements for a Newborn baby and child aged 6.

pashok25 [27]

Explanation:

Calcium . Helps build strong bones and teeth.

Fat. Creates energy, helps the brain develop, keeps skin and hair healthy, and protects against infections.

Folate. Helps cells divide.

Iron. Builds blood cells, and helps the brain develop. Breast-fed babies should receive iron supplements.

Protein and carbohydrates. They provide energy and fuel growth.

Zinc. Helps the cells grow and repair themselves

Your baby also needs vitamins such as:

Vitamin A. Keeps skin, hair, vision, and the immune system healthy.

Vitamin B1 (thiamine). Helps the body turn food into energy.

Vitamin B2 (riboflavin). Helps the body turn food into energy, and protects cells from damage.

Vitamin B3 (niacin). Helps the body turn food into energy and use fats and protein.

Vitamin B6. Keeps the brain and immune system healthy.

Vitamin B12. Keeps nerve and blood cells healthy, and makes DNA -- the genetic material in every cell.

Vitamin C. Protects against infections, builds bones and muscles, and helps wounds heal.

Vitamin D. Helps the body absorb calcium from food, and keeps bones and teeth healthy. Breast-fed babies may need a D supplement.

Vitamin E. Protects cells from damage, and strengthens the immune system.

Vitamin K. Helps the blood to clot.

hope this was helpful

8 0

3 years ago

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